Happy Atheist forum

General => Science => Topic started by: xSilverPhinx on June 21, 2016, 11:13:35 PM

Title: Science GIFS
Post by: xSilverPhinx on June 21, 2016, 11:13:35 PM
Sponges (Porifera) filtering water:

(http://38.media.tumblr.com/e950dc5b8b63433a673c2e2b6b2f2b0d/tumblr_n6tk883Qpy1qdlh1io1_400.gif)

Iridescence:

(http://i.makeagif.com/media/6-06-2016/4SCMU9.gif)

Tank's global warming gif:

(http://assets.climatecentral.org/images/uploads/news/5_9_16_Andrea_TempSpiralEdHawkins.gif)

That motor protein's got some swaggar!

(https://media.giphy.com/media/oV6F2VV7KBiO4/giphy.gif)

DNA replication:

(http://67.media.tumblr.com/tumblr_meah7lfxEK1qbpwkro5_r1_500.gif)
Title: Re: Science GIFS
Post by: No one on June 22, 2016, 01:02:37 AM
(https://67.media.tumblr.com/tumblr_m9hc4jzPpX1qg0ltco1_400.gif)
Title: Re: Science GIFS
Post by: Recusant on June 22, 2016, 01:15:18 AM
I have a couple that could qualify, if you stretch it a bit (or a lot), but they're more fun than science.

Anyway, here's a tardigrade swimming:

(https://media.giphy.com/media/GAWlF4fPkrF2o/giphy.gif)
Title: Re: Science GIFS
Post by: Tank on June 22, 2016, 08:18:32 AM
I have a couple that could qualify, if you stretch it a bit (or a lot), but they're more fun than science.

Anyway, here's a tardigrade swimming:

(https://media.giphy.com/media/GAWlF4fPkrF2o/giphy.gif)
Given the relative viscosity and density of water I'd say it would be more like burrowing through treacle than swimming.  I remember a comment about bacteria with flagella that it was like mining through warm tar size for size. 
Title: Re: Science GIFS
Post by: Tank on June 22, 2016, 08:20:24 AM
(http://microsite.smithsonianmag.com/gifs/chain-moving.gif)
Title: Re: Science GIFS
Post by: Tank on June 22, 2016, 08:22:29 AM
The seed pod from Himalayan Balsom (https://www.rhs.org.uk/advice/profile?PID=480)

(https://lh3.googleusercontent.com/t_ASpN-EierNkY_WdtF-ZokKk-lS48iq1e7ANhXJADcKiaCYWe1PiRm6fUrDmDqzBkvSMQBkmPNzyuEuJFir5T7mIWmYL485Lb8PRmvLELqzjqWEeIfZKlbJiYIDwa5CWC4S2h8)
Title: Re: Science GIFS
Post by: Tank on June 22, 2016, 08:26:38 AM
How we really travel through space.

(https://s-media-cache-ak0.pinimg.com/originals/25/75/65/257565f3c27722162eb945c49e65b091.gif)
Title: Re: Science GIFS
Post by: Essie Mae on June 23, 2016, 10:48:27 PM
(http://microsite.smithsonianmag.com/gifs/chain-moving.gif)

What's happening there?
Title: Re: Science GIFS
Post by: Recusant on June 23, 2016, 10:52:58 PM
What's happening there?

It's taken from the video below, which more or less explains what's going on.

Not a valid youtube URL
Title: Re: Science GIFS
Post by: xSilverPhinx on June 23, 2016, 11:00:34 PM
Sodium/potassium pump. This makes it easier to remember that it's three sodium ions and only two potassium. :smilenod:

(http://66.media.tumblr.com/8073e4370bfea14a3d034a9f3927eed6/tumblr_nx98g1y9sk1qiz5q7o1_500.gif)
Title: Re: Science GIFS
Post by: xSilverPhinx on June 24, 2016, 09:28:12 PM
(https://media.giphy.com/media/oStBM1ANst52U/giphy.gif)

I  :love: this one.
Title: Re: Science GIFS
Post by: joeactor on June 25, 2016, 02:38:00 PM
That heart one is good...

Amazing machine.
Title: Re: Science GIFS
Post by: xSilverPhinx on June 30, 2016, 01:17:16 AM
(http://67.media.tumblr.com/d4b9974630566b1185f8e3adbcd4bb06/tumblr_o9hrs67V5c1sk2szio1_1280.gif)


(https://media.giphy.com/media/l0COHMgFMvtSW0RDq/giphy.gif)
Title: Re: Science GIFS
Post by: Tank on June 30, 2016, 06:36:41 AM
Loving all of these. The DNA one is excellent.
Title: Re: Science GIFS
Post by: Tank on July 01, 2016, 08:25:53 AM
(http://www.bangyourart.com/Panel/Photos/AAORgif/03192016134657.gif)
Title: Re: Science GIFS
Post by: Dave on July 01, 2016, 08:43:40 AM
(http://www.bangyourart.com/Panel/Photos/AAORgif/03192016134657.gif)
:lol:
Title: Re: Science GIFS
Post by: Tank on July 06, 2016, 06:56:12 AM
Juno's trip to Jupiter.

(https://66.media.tumblr.com/4e881a0340b323bcdfa3797001ca1c6c/tumblr_o9ua2xrMW11qiz5q7o1_540.gif)
Title: Re: Science GIFS
Post by: Tank on July 06, 2016, 07:01:22 AM
(https://49.media.tumblr.com/44d4115e5bc4b49db07f8f3d238b1e95/tumblr_o1dnzwDHDu1sp3aqeo1_400.gif)
Title: Re: Science GIFS
Post by: Dave on July 06, 2016, 11:18:52 AM
(https://49.media.tumblr.com/44d4115e5bc4b49db07f8f3d238b1e95/tumblr_o1dnzwDHDu1sp3aqeo1_400.gif)
Just love those white blood cells  :dance:
Title: Re: Science GIFS
Post by: xSilverPhinx on July 07, 2016, 12:07:21 AM
I love how it collects a bunch of bacteria.
Title: Re: Science GIFS
Post by: xSilverPhinx on July 30, 2016, 05:01:36 PM
(http://static3.techinsider.io/image/57445b83910584155c8c47d8-/ti_graphics_solar-system-velocity.gif)
Title: Re: Science GIFS
Post by: joeactor on July 31, 2016, 02:24:38 PM
Whoa! Go Jupiter!!!
Title: Re: Science GIFS
Post by: xSilverPhinx on July 31, 2016, 05:16:35 PM
Whoa! Go Jupiter!!!

 ;D You blink, you miss it!
Title: Re: Science GIFS
Post by: Mr. B on July 31, 2016, 05:36:01 PM
Step 1: Click link

Step 2: Enjoy

http://scaleofuniverse.com/
Title: Re: Science GIFS
Post by: Tank on July 31, 2016, 10:04:50 PM
Step 1: Click link

Step 2: Enjoy

http://scaleofuniverse.com/
Truly excellent.
Title: Re: Science GIFS
Post by: xSilverPhinx on August 14, 2016, 03:45:21 PM
(https://upload.wikimedia.org/wikipedia/commons/4/48/Saltatory_Conduction.gif)
Title: Re: Science GIFS
Post by: Essie Mae on August 23, 2016, 11:27:51 PM
(https://upload.wikimedia.org/wikipedia/commons/4/48/Saltatory_Conduction.gif)

That's so clever but sobering. Is that meant to show what happens in MS-type conditions?
Title: Re: Science GIFS
Post by: xSilverPhinx on August 24, 2016, 01:46:51 AM
That's so clever but sobering. Is that meant to show what happens in MS-type conditions?

I think so. With the loss of myelin sheaths our neurons can no longer communicate. Some animals such as invertebrates do not have myelin, but their axons (the long projection) are so wide that there is little physical resistance for the electrical signal, which can get through. A squid's giant, demylelinated axon is visible to the naked eye. :o
Title: Re: Science GIFS
Post by: Dave on August 24, 2016, 05:20:38 PM
That's so clever but sobering. Is that meant to show what happens in MS-type conditions?

I think so. With the loss of myelin sheaths our neurons can no longer communicate. Some animals such as invertebrates do not have myelin, but their axons (the long projection) are so wide that there is little physical resistance for the electrical signal, which can get through. A squid's giant, demylelinated axon is visible to the naked eye. :o

Wow! Giant axons. Hmm wonder when sci-fi will strike and they attempt to grow a "squidputer"?
Title: Re: Science GIFS
Post by: xSilverPhinx on August 25, 2016, 10:38:02 AM
That's so clever but sobering. Is that meant to show what happens in MS-type conditions?

I think so. With the loss of myelin sheaths our neurons can no longer communicate. Some animals such as invertebrates do not have myelin, but their axons (the long projection) are so wide that there is little physical resistance for the electrical signal, which can get through. A squid's giant, demylelinated axon is visible to the naked eye. :o

Wow! Giant axons. Hmm wonder when sci-fi will strike and they attempt to grow a "squidputer"?

Why squid? Our mylienated neurons are much faster, and besides that you can fit many more "wires" in an area!
Title: Re: Science GIFS
Post by: Dave on August 25, 2016, 11:14:33 AM
That's so clever but sobering. Is that meant to show what happens in MS-type conditions?

I think so. With the loss of myelin sheaths our neurons can no longer communicate. Some animals such as invertebrates do not have myelin, but their axons (the long projection) are so wide that there is little physical resistance for the electrical signal, which can get through. A squid's giant, demylelinated axon is visible to the naked eye. :o

Wow! Giant axons. Hmm wonder when sci-fi will strike and they attempt to grow a "squidputer"?

Why squid? Our mylienated neurons are much faster, and besides that you can fit many more "wires" in an area!
True, is it a matter of manipulation or encouraging the axons to behave as you want them? Even the real thing is difficult to keep under control, let alone some lumo of jelly in a container connected to the outside world to make a biologucal computer.

Was thinking that larger ones might be easier to work with, even manipulate mechanically into arrays etc.
Title: Re: Science GIFS
Post by: xSilverPhinx on August 26, 2016, 02:21:37 PM
That's so clever but sobering. Is that meant to show what happens in MS-type conditions?

I think so. With the loss of myelin sheaths our neurons can no longer communicate. Some animals such as invertebrates do not have myelin, but their axons (the long projection) are so wide that there is little physical resistance for the electrical signal, which can get through. A squid's giant, demylelinated axon is visible to the naked eye. :o

Wow! Giant axons. Hmm wonder when sci-fi will strike and they attempt to grow a "squidputer"?

Why squid? Our mylienated neurons are much faster, and besides that you can fit many more "wires" in an area!
True, is it a matter of manipulation or encouraging the axons to behave as you want them? Even the real thing is difficult to keep under control, let alone some lumo of jelly in a container connected to the outside world to make a biologucal computer.

Was thinking that larger ones might be easier to work with, even manipulate mechanically into arrays etc.

But if it's sci-fi then we could get nanobots to do it. :P Don't be afraid to dream a little bigger (or in this case, smaller) darling.
Title: Re: Science GIFS
Post by: xSilverPhinx on August 27, 2016, 01:46:06 PM
These GIFS show you what it's like to be colour-blind (http://www.iflscience.com/health-and-medicine/these-gifs-show-you-what-it-s-like-to-be-color-blind/)
Title: Re: Science GIFS
Post by: Davin on August 29, 2016, 03:29:31 PM
Those are neat.
Title: Re: Science GIFS
Post by: Kekerusey on August 30, 2016, 07:40:06 AM
These GIFS show you what it's like to be colour-blind (http://www.iflscience.com/health-and-medicine/these-gifs-show-you-what-it-s-like-to-be-color-blind/)

I never realised there were so many different types.

Keke
Title: Re: Science GIFS
Post by: Essie Mae on September 03, 2016, 09:59:44 AM
That's a clever way to show what it's like to be colour-blind. Is there any evidence that people with the condition suffer with depression because of it, or is just their normal and not a cause for sadness? As they grow up they must become aware they are not having the same experience as everyone else.
Title: Re: Science GIFS
Post by: xSilverPhinx on September 03, 2016, 03:20:14 PM
That's a clever way to show what it's like to be colour-blind. Is there any evidence that people with the condition suffer with depression because of it, or is just their normal and not a cause for sadness? As they grow up they must become aware they are not having the same experience as everyone else.

Good question!

I don't know the answer but I would assume that there might be some people within the colour-blind population that might feel that way, but I don't know if their number would be significant enough to link depression to the condition.
Title: Re: Science GIFS
Post by: Mr. B on September 07, 2016, 04:00:43 AM
These GIFS show you what it's like to be colour-blind (http://www.iflscience.com/health-and-medicine/these-gifs-show-you-what-it-s-like-to-be-color-blind/)

Interesting. Not sure if it is accurate or not. I am color blind and my wife is not. We looked at them together. We could both see the differences in all the gifs. Here is a beautifully vulgar display of taking advantage of the color blind.

I only know what it says because my wife told me.

(http://laserpointerforums.com/attachments/f44/31684d1299183014-colorblind-colour.jpg)

I can read this one.

(http://i.imgur.com/iv99x.png)

And this one

(http://i.imgur.com/wrseOl5.jpg)

But I can't read this one

(http://www.color-blindness.com/wp-content/images/i-heart-color.jpg)



Title: Re: Science GIFS
Post by: Mr. B on September 10, 2016, 05:39:09 AM
Is there any evidence that people with the condition suffer with depression because of it, or is just their normal and not a cause for sadness? As they grow up they must become aware they are not having the same experience as everyone else.

I have never heard of anyone being depressed because of their color vision deficiency. I have certainly never experienced it for myself. Everything looks the same to me as it did when I was born. There have been people who have made fun of me for it but there have also been people who have made fun of me for my hair, my height, my weight, my political views, my religion or lack thereof, my sexuality, my service in the armed forces, the color of my skin, my ignorance and my sense of humor.  It doesn't matter who you are, what you are, what you believe. There will always be someone there to ridicule you for who you are. These things shouldn't matter. At least, they don't matter to me. If some Democratic "leader" wants to give me some money taken from you to compensate me for my "disability" then they can shove that particular carrot up their ass.

I am a pressman. I operate a four color offset press and I produce beautiful work with a printing machine very similar to this one.



Maybe some people get depressed. Maybe some people use a Gretag MacBeth DC19

.
Title: Re: Science GIFS
Post by: xSilverPhinx on September 10, 2016, 01:56:23 PM
Maybe more of a mathematical gif than a science one:

(https://media.giphy.com/media/vygXn4EokKqEo/giphy.gif)
Title: Re: Science GIFS
Post by: xSilverPhinx on September 10, 2016, 01:59:39 PM
Interesting. Not sure if it is accurate or not. I am color blind and my wife is not. We looked at them together. We could both see the differences in all the gifs. Here is a beautifully vulgar display of taking advantage of the color blind.

Maybe not so accurate, then. :notsure:
Title: Re: Science GIFS
Post by: Icarus on September 11, 2016, 04:47:20 AM
^^ Dammit xSP,  now you have me itching to go out into my workshop to make one of those dynamic gizmos. I am thoroughly  fascinated by that kind of thing. ......I suppose it's either a personality flaw or a reminiscence of the Rube Goldberg wizardry of old.
Title: Re: Science GIFS
Post by: xSilverPhinx on September 14, 2016, 12:52:46 PM
(http://earthobservatory.nasa.gov/blogs/earthmatters/files/2016/09/tempanoms_gis_august2016.gif)
Title: Re: Science GIFS
Post by: Icarus on September 15, 2016, 12:29:20 AM
^ Nifty gif XSP.
Title: Re: Science GIFS
Post by: xSilverPhinx on September 17, 2016, 12:32:08 AM
This gif is just too cute! :grin:

(http://i.giphy.com/errkgQmINUzcY.gif)
Title: Re: Science GIFS
Post by: xSilverPhinx on September 18, 2016, 10:30:34 PM
(http://neuroscience.uth.tmc.edu/Assets/images/ell_br.gif)
Title: Re: Science GIFS
Post by: xSilverPhinx on September 22, 2016, 12:13:43 AM
Static electricity. :grin:

(https://s-media-cache-ak0.pinimg.com/originals/e8/cf/b7/e8cfb7ce5a387c05c85b27db1343d3b3.gif)
Title: Re: Science GIFS
Post by: Arturo on September 22, 2016, 02:34:47 AM
(http://blog.chron.com/tubular/files/2015/01/neil-degrasse-tyson.gif)
(http://mrwgifs.com/wp-content/uploads/2014/06/Neil-Degrasse-Tyson-Nose-Boop-Smile-On-Cosmos.gif)
(http://img.pandawhale.com/115131-Neil-DeGrasse-Tyson-science-bo-3lXF.gif)
Title: Re: Science GIFS
Post by: xSilverPhinx on September 26, 2016, 02:37:39 AM
(https://i.kinja-img.com/gawker-media/image/upload/s--CRPba0If--/c_fit,fl_progressive,q_80,w_636/x0d52xgkhslhrneixyze.gif)
Title: Re: Science GIFS
Post by: joeactor on September 26, 2016, 02:49:09 PM
^^ Cool!
Title: Re: Science GIFS
Post by: Davin on September 26, 2016, 02:56:25 PM
Those are cool.
Title: Re: Science GIFS
Post by: Icarus on September 26, 2016, 11:21:52 PM
Really neat stuff xSP.

I've been a student of aerodynamics and hydrodynamics ever since the advent of sliced bread. Ornithopters are  practitioners of  mysterious physics.
Title: Re: Science GIFS
Post by: xSilverPhinx on October 01, 2016, 12:02:52 AM
(https://media.giphy.com/media/xvE0w3uEMdJ72/giphy.gif)
Title: Re: Science GIFS
Post by: Essie Mae on October 20, 2016, 11:57:56 PM
Is there any evidence that people with the condition suffer with depression because of it, or is just their normal and not a cause for sadness? As they grow up they must become aware they are not having the same experience as everyone else.

I have never heard of anyone being depressed because of their color vision deficiency. I have certainly never experienced it for myself. Everything looks the same to me as it did when I was born. There have been people who have made fun of me for it but there have also been people who have made fun of me for my hair, my height, my weight, my political views, my religion or lack thereof, my sexuality, my service in the armed forces, the color of my skin, my ignorance and my sense of humor.  It doesn't matter who you are, what you are, what you believe. There will always be someone there to ridicule you for who you are. These things shouldn't matter. At least, they don't matter to me. If some Democratic "leader" wants to give me some money taken from you to compensate me for my "disability" then they can shove that particular carrot up their ass.

I am a pressman. I operate a four color offset press and I produce beautiful work with a printing machine very similar to this one.



Maybe some people get depressed. Maybe some people use a Gretag MacBeth DC19

.

A 'No' then. I'm pleased, but sorry to hear you had so much teasing. To have as much as that was verging on bullying surely?
Title: Re: Science GIFS
Post by: MariaEvri on October 21, 2016, 06:40:08 PM
(http://blog.chron.com/tubular/files/2015/01/neil-degrasse-tyson.gif)
(http://mrwgifs.com/wp-content/uploads/2014/06/Neil-Degrasse-Tyson-Nose-Boop-Smile-On-Cosmos.gif)
(http://img.pandawhale.com/115131-Neil-DeGrasse-Tyson-science-bo-3lXF.gif)

every time i see the last one I always fall off laughing!
Title: Re: Science GIFS
Post by: Mr. B on October 22, 2016, 04:24:44 PM


Is there any evidence that people with the condition suffer with depression because of it, or is just their normal and not a cause for sadness? As they grow up they must become aware they are not having the same experience as everyone else.

I have never heard of anyone being depressed because of their color vision deficiency. I have certainly never experienced it for myself. Everything looks the same to me as it did when I was born. There have been people who have made fun of me for it but there have also been people who have made fun of me for my hair, my height, my weight, my political views, my religion or lack thereof, my sexuality, my service in the armed forces, the color of my skin, my ignorance and my sense of humor.  It doesn't matter who you are, what you are, what you believe. There will always be someone there to ridicule you for who you are. These things shouldn't matter. At least, they don't matter to me.

Quote
A 'No' then. I'm pleased, but sorry to hear you had so much teasing. To have as much as that was verging on bullying surely?

Yeah but my parents instructed me to tease them right back. It worked well for me in elementary with the small group of kids I grew up with but in Jr. High we were scattered to the four winds as five or six elementary schools were all mixed together.  I became depressed and bitter but continued to shoot back at people who teased me. I never let it show that it bothered me in the least. In fact, I usually teased them back with a big smile on my face like we were just playing a game. By the time I got to high school I could no longer tell the difference when someone was actually threatening me, looking for a fight, or just clowning around.

Looking back, I had a lot more friends than I realized at the time. After high school I ran into some of the guys I considered enemies at the time because they teased me the most. Turns out they remembered things differently. They remembered me as having the toughest skin, that nothing ever bothered me and they lamented about how they wished they could have been as strong and fearless as I was. They even got into a minor disagreement about who was my friend first or who knew me the longest. It was surreal.

So, what I described in my previous post does sound like bullying but it was just the games we played growing up, testing each other for weakness. It was universal in that we all made fun of each other pretty equally even though we each felt that we were getting picked on more than the others.

In my mind, bullying entails a concentrated effort to systematically isolate one individual for special ongoing constant abuse, usually over one specific aspect of their personality or lifestyle. I didn't experience anything like that. What I experienced was a whole bunch of people throwing random shit against the wall to see if anything would stick.
Title: Re: Science GIFS
Post by: Essie Mae on October 24, 2016, 12:45:01 AM


Is there any evidence that people with the condition suffer with depression because of it, or is just their normal and not a cause for sadness? As they grow up they must become aware they are not having the same experience as everyone else.

I have never heard of anyone being depressed because of their color vision deficiency. I have certainly never experienced it for myself. Everything looks the same to me as it did when I was born. There have been people who have made fun of me for it but there have also been people who have made fun of me for my hair, my height, my weight, my political views, my religion or lack thereof, my sexuality, my service in the armed forces, the color of my skin, my ignorance and my sense of humor.  It doesn't matter who you are, what you are, what you believe. There will always be someone there to ridicule you for who you are. These things shouldn't matter. At least, they don't matter to me.

Quote
A 'No' then. I'm pleased, but sorry to hear you had so much teasing. To have as much as that was verging on bullying surely?

Yeah but my parents instructed me to tease them right back. It worked well for me in elementary with the small group of kids I grew up with but in Jr. High we were scattered to the four winds as five or six elementary schools were all mixed together.  I became depressed and bitter but continued to shoot back at people who teased me. I never let it show that it bothered me in the least. In fact, I usually teased them back with a big smile on my face like we were just playing a game. By the time I got to high school I could no longer tell the difference when someone was actually threatening me, looking for a fight, or just clowning around.

Looking back, I had a lot more friends than I realized at the time. After high school I ran into some of the guys I considered enemies at the time because they teased me the most. Turns out they remembered things differently. They remembered me as having the toughest skin, that nothing ever bothered me and they lamented about how they wished they could have been as strong and fearless as I was. They even got into a minor disagreement about who was my friend first or who knew me the longest. It was surreal.

So, what I described in my previous post does sound like bullying but it was just the games we played growing up, testing each other for weakness. It was universal in that we all made fun of each other pretty equally even though we each felt that we were getting picked on more than the others.

In my mind, bullying entails a concentrated effort to systematically isolate one individual for special ongoing constant abuse, usually over one specific aspect of their personality or lifestyle. I didn't experience anything like that. What I experienced was a whole bunch of people throwing random shit against the wall to see if anything would stick.

I'm glad for you that you did not feel you were  bullied. You must be very quick-thinking to have been able to come up with an effective reply to the teasing. Would you say you are an example of 'what doesn't kill you makes you stronger'? And do you feel you have friends now to a greater extent than before? Questions, questions; but that was such a moving and fascinating reply and I'd like it if things are better for you now.
Title: Re: Science GIFS
Post by: xSilverPhinx on November 06, 2016, 01:48:23 PM
(https://media.giphy.com/media/LY1GSqyEXc3tu/giphy.gif)
Title: Re: Science GIFS
Post by: Icarus on November 09, 2016, 05:32:08 AM
^ WOW! Virus trading cards.  A more useful trading card than the baseball ones.
Title: Re: Science GIFS
Post by: xSilverPhinx on November 11, 2016, 12:55:33 PM
(http://68.media.tumblr.com/6674048db8dc6e0597d162ad5b575705/tumblr_ogehezjKLZ1sk2szio1_1280.gif)
Title: Re: Science GIFS
Post by: Mr. B on November 12, 2016, 01:16:23 AM
I'm glad for you that you did not feel you were  bullied. You must be very quick-thinking to have been able to come up with an effective reply to the teasing. Would you say you are an example of 'what doesn't kill you makes you stronger'? And do you feel you have friends now to a greater extent than before? Questions, questions; but that was such a moving and fascinating reply and I'd like it if things are better for you now.

Please accept my apologies for taking so long to respond. I don't visit this site very often, I am sorry I kept you waiting. It's just that I only just now looked back over my previous comments to see if anyone has responded. Life can be rather hectic sometimes, you know?

What doesn't kill me makes me stronger? Yes, maybe, but only in the figurative sense. But there are trade off's. I am far less empathetic than I used to be. I have developed the ability to insulate my feelings at the expense of caring for other peoples feelings. It's not a total wash but I can tell the difference. It's not that I don't care what other people feel, it's just that I don't think about other people's feelings as much as I used to. If other people are polite and courteous to me, I am polite and courteous to them. If they are not, I reserve the right to treat them as poorly as they treat me. It's a situational thing and every situation is different.

As far as my friends go. I feel I have just as many now as I did at anytime during my childhood. One. The one changes from time to time as people go about their way. I have had many "best" friends over the course of my life, usually only one at a time. Currently, my best friend is my wife.

My approach to life has not benefited me financially but I know that I will die with few regrets.

Things are no worse for me now, but they are no better.

People are strange.
Title: Re: Science GIFS
Post by: xSilverPhinx on November 12, 2016, 05:33:26 PM
Seeing a fart with a thermal camera.

(https://media.giphy.com/media/nAh0ynkho8sko/giphy-downsized-large.gif)
Title: Re: Science GIFS
Post by: joeactor on November 16, 2016, 03:09:10 PM
Seeing a fart with a thermal camera.

(https://media.giphy.com/media/nAh0ynkho8sko/giphy-downsized-large.gif)

Great GIF, but MythBusters busted that one:
http://mythresults.com/reddit-special
Title: Re: Science GIFS
Post by: xSilverPhinx on December 02, 2016, 09:34:07 PM
(https://media.giphy.com/media/hP7QyY4hHBcyI/giphy.gif)
Title: Re: Science GIFS
Post by: xSilverPhinx on December 02, 2016, 09:35:48 PM
Seeing a fart with a thermal camera.

(https://media.giphy.com/media/nAh0ynkho8sko/giphy-downsized-large.gif)

Great GIF, but MythBusters busted that one:
http://mythresults.com/reddit-special

Interesting. :chin:
Title: Re: Science GIFS
Post by: Essie Mae on December 04, 2016, 12:01:13 AM
I'm glad for you that you did not feel you were  bullied. You must be very quick-thinking to have been able to come up with an effective reply to the teasing. Would you say you are an example of 'what doesn't kill you makes you stronger'? And do you feel you have friends now to a greater extent than before? Questions, questions; but that was such a moving and fascinating reply and I'd like it if things are better for you now.

Please accept my apologies for taking so long to respond. I don't visit this site very often, I am sorry I kept you waiting. It's just that I only just now looked back over my previous comments to see if anyone has responded. Life can be rather hectic sometimes, you know?

What doesn't kill me makes me stronger? Yes, maybe, but only in the figurative sense. But there are trade off's. I am far less empathetic than I used to be. I have developed the ability to insulate my feelings at the expense of caring for other peoples feelings. It's not a total wash but I can tell the difference. It's not that I don't care what other people feel, it's just that I don't think about other people's feelings as much as I used to. If other people are polite and courteous to me, I am polite and courteous to them. If they are not, I reserve the right to treat them as poorly as they treat me. It's a situational thing and every situation is different.

As far as my friends go. I feel I have just as many now as I did at anytime during my childhood. One. The one changes from time to time as people go about their way. I have had many "best" friends over the course of my life, usually only one at a time. Currently, my best friend is my wife.

My approach to life has not benefited me financially but I know that I will die with few regrets.

Things are no worse for me now, but they are no better.

People are strange.
You got that right. In reply to your first sentence, I'm a bit tardy myself - don't know how I missed this. I visit two or three times every week still because it's the only forum I'm in and I enjoy it. I was visiting all day every day at first because it was a bit seismic realising I was an atheist, and finding lots of regular folk (well actually quite singular types; intellectuals, comedians, scientists etc), for whom lack of religion was normal, was reassuring.

Thank you for your thoughtful reply. Like for like treatment of people seems a good way of preserving sanity. Having one good friend is better than many acquaintances IMO. I have five friends of very long-standing from different times of my life from age 11 until 22 years ago, which is when I made my last friend. The funny thing is that none of them get on very well with each other. I suppose they are a disparate lot but I do sometimes wish I had a group of friends to meet with on occasion. Not since my teens has that happened. My husband has only one friend, but he sees a lot of his family who all live quite close. You seem to have made peace with your situation and I wish you well.
Title: Re: Science GIFS
Post by: xSilverPhinx on December 04, 2016, 03:05:31 PM
(https://66.media.tumblr.com/7945f1fdcdf33176b6c291b48da100d9/tumblr_off1og7TjV1txjtjuo2_r1_500.gif)
Title: Re: Science GIFS
Post by: Arturo on December 04, 2016, 11:38:00 PM
(https://66.media.tumblr.com/7945f1fdcdf33176b6c291b48da100d9/tumblr_off1og7TjV1txjtjuo2_r1_500.gif)

I've seen this. I think on "Cosmos" with Neil Degrasse Tyson.
Title: Re: Science GIFS
Post by: Icarus on December 05, 2016, 01:06:11 AM
Essie Mae you can, if you wish, have many casual or semi formal friends by simply networking. My wife is something of a social animal who has about a gazillion friends and acquaintances.  She is a Red Hat lady, a member of ABWA (American business womens' association), and a few other groups such as her  investment club ladies who have not bothered with investment subjects for years. Those girls just have a hell of a good time with one another and are not much concerned with whether or not they have the approval of the general run of society. They often get together to attend theatre, have dinners, drink too much wine, and laugh a lot.  I am inclined to think that British ladies are not all that much different and that they can also have a hell of a good time together without hurting or diminishing anyone whatever.

Meanwhile... I am glad that we have you, EM, here on this forum.

Title: Re: Science GIFS
Post by: xSilverPhinx on December 05, 2016, 11:08:53 AM
(https://66.media.tumblr.com/7945f1fdcdf33176b6c291b48da100d9/tumblr_off1og7TjV1txjtjuo2_r1_500.gif)

I've seen this. I think on "Cosmos" with Neil Degrasse Tyson.

I really need to watch that series. I only watched the original, with Carl Sagan.
Title: Re: Science GIFS
Post by: MariaEvri on December 05, 2016, 04:30:05 PM
(https://66.media.tumblr.com/7945f1fdcdf33176b6c291b48da100d9/tumblr_off1og7TjV1txjtjuo2_r1_500.gif)

I've seen this. I think on "Cosmos" with Neil Degrasse Tyson.

I really need to watch that series. I only watched the original, with Carl Sagan.

you should. It's really inspiring
Title: Re: Science GIFS
Post by: Essie Mae on December 09, 2016, 12:34:06 AM
Essie Mae you can, if you wish, have many casual or semi formal friends by simply networking. My wife is something of a social animal who has about a gazillion friends and acquaintances.  She is a Red Hat lady, a member of ABWA (American business womens' association), and a few other groups such as her  investment club ladies who have not bothered with investment subjects for years. Those girls just have a hell of a good time with one another and are not much concerned with whether or not they have the approval of the general run of society. They often get together to attend theatre, have dinners, drink too much wine, and laugh a lot.  I am inclined to think that British ladies are not all that much different and that they can also have a hell of a good time together without hurting or diminishing anyone whatever.

Meanwhile... I am glad that we have you, EM, here on this forum.

That is so lovely🙂 Thank you. I don"t want to give the impression I'm unhappy; it's just that all the people I seem to meet on my organised walks are lovely but fairly quiet and serious. My closest friend and theatre buddy is the same; I count myself lucky to have her, but, for instance, I'd like to go and see 'The Full Monty' which is on at the Cambridge Arts Theatre in January, but my friend would think it a bit beneath her. It would be hilarious to go in a group. Anyway, I've got Australia and my granddaughters to see in mid Feb, so I'm not feeling sorry for myself at all. I've been reading a report today about how people way younger than me are facing loneliness because of family break-ups and the like, and I've just realised I'm contributing to the derailing of this thread. It's what I do. Apols.
Title: Re: Science GIFS
Post by: Icarus on December 09, 2016, 05:25:06 AM
That play, the Full Monty, is a fun show to attend. It is actually not so bawdy as to offend the general run of theatre goers. Encourage your friend to let her hair down a bit and to laugh a lot because that kind of behavior is healthy.
Title: Re: Science GIFS
Post by: Essie Mae on December 10, 2016, 12:03:01 AM
That play, the Full Monty, is a fun show to attend. It is actually not so bawdy as to offend the general run of theatre goers. Encourage your friend to let her hair down a bit and to laugh a lot because that kind of behavior is healthy.
I'll see what I can do. 😉
Title: Re: Science GIFS
Post by: Essie Mae on December 11, 2016, 09:40:26 PM
That play, the Full Monty, is a fun show to attend. It is actually not so bawdy as to offend the general run of theatre goers. Encourage your friend to let her hair down a bit and to laugh a lot because that kind of behavior is healthy.
I'll see what I can do. 😉

Too late - whole run fully booked!
Title: Re: Science GIFS
Post by: xSilverPhinx on December 11, 2016, 09:43:40 PM
(https://upload.wikimedia.org/wikipedia/commons/1/12/CG_Heart.gif)

Boom boom...
Title: Re: Science GIFS
Post by: Icarus on December 11, 2016, 10:09:30 PM
That is a spectacular machine xSP. I see it from an engineers point of view and observe the critical timing of those valves. Wow! And the thing does that 50, 60, 70 times a minute for a lot of minutes.......1440 minutes in a day......times 60 means that those little valves did their thing 86,400 times. If a whole year is considered then thirty one million times and when one is as old as me, the total number is .......Oh Shit !........somewhere in the region of three billion. And that is only if the measurement was always counted at rest. Best not to think in those terms I reckon. 
Title: Re: Science GIFS
Post by: xSilverPhinx on December 12, 2016, 12:28:54 AM
Yes, it is a wonder :smilenod:
Title: Re: Science GIFS
Post by: Dave on December 12, 2016, 02:25:41 PM
(https://upload.wikimedia.org/wikipedia/commons/1/12/CG_Heart.gif)

Boom boom...

Er, more like "Boom - squish" for me, the left ventrical is only closing about half normal volume due to now being 25% stiff scar tissue...
Title: Re: Science GIFS
Post by: xSilverPhinx on December 15, 2016, 02:15:40 AM
(http://68.media.tumblr.com/01e3a81ec024b26d79e0bd7a46aeb5ab/tumblr_oi4ny0ISrs1sk2szio1_1280.gif)
Title: Re: Science GIFS
Post by: MariaEvri on December 15, 2016, 05:20:35 PM
(http://68.media.tumblr.com/01e3a81ec024b26d79e0bd7a46aeb5ab/tumblr_oi4ny0ISrs1sk2szio1_1280.gif)

That's cool. If I remember my national geographic tests I have a deletion  :D
And that heart! Make sme tires just seeing it for some reason
Title: Re: Science GIFS
Post by: Arturo on December 16, 2016, 04:49:55 PM
(http://img.pandawhale.com/50459-Russian-meteorite-February-15-tawJ.gif)

I don't know if this is real. But it's supposed to be a meteor that hit Russia in 2013.
Title: Re: Science GIFS
Post by: MariaEvri on December 18, 2016, 07:55:07 PM
It must be real. There are tons of people using dash cams in russia and that meteor was filmed by many
Title: Re: Science GIFS
Post by: Dave on December 18, 2016, 08:34:28 PM
Here's another view
(http://i778.photobucket.com/albums/yy67/DaveGlos/Mobile%20Uploads/2016-12/c8M9XxH.gif) (http://s778.photobucket.com/user/DaveGlos/media/Mobile%20Uploads/2016-12/c8M9XxH.gif.html)
Title: Re: Science GIFS
Post by: Recusant on December 19, 2016, 12:16:56 AM
Seems like an bit of something that was somewhat more volatile burned up as it got closer to the ground.
Title: Re: Science GIFS
Post by: Dave on December 19, 2016, 08:45:15 AM
Seems like an bit of something that was somewhat more volatile burned up as it got closer to the ground.
Yes, most of the shots show that extra brightening and thickening of the "trail". That is was convinced me it was genuine.

CGI is now good enough to be very hard to spot but immitating that, from several angles, would be quite difficult - not worth the bother.
Title: Re: Science GIFS
Post by: xSilverPhinx on December 19, 2016, 09:45:03 AM
(https://media.giphy.com/media/3o7TKPSzzQCqbAz0E8/giphy.gif)

Seek and gobble up.
Title: Re: Science GIFS
Post by: Dave on December 19, 2016, 10:07:33 AM
(https://media.giphy.com/media/3o7TKPSzzQCqbAz0E8/giphy.gif)

Seek and gobble up.
Incredible to think all that sensing and chasing is just done on chemical gradients.

And easy to believe that theory that all multicellular life is really a super-colony of more primitive  forms.
Title: Re: Science GIFS
Post by: MariaEvri on December 19, 2016, 03:39:36 PM
Seems like an bit of something that was somewhat more volatile burned up as it got closer to the ground.



there was also a huge explosion, broke glasses and made damage

Title: Re: Science GIFS
Post by: Dave on December 19, 2016, 04:48:50 PM
Seems like an bit of something that was somewhat more volatile burned up as it got closer to the ground.



there was also a huge explosion, broke glasses and made damage

There must have been a hell of a sonic bang as well, it was clocked at about 19km/sec, only about 60 times the speed of sound! But yes:
Quote
The blast created by the meteor's air burst produced extensive ground damage over an irregular elliptical area a few tens of kilometres across,

Wiki (https://en.m.wikipedia.org/wiki/Chelyabinsk_meteor)
Title: Re: Science GIFS
Post by: Recusant on December 20, 2016, 12:15:34 AM
Not a GIF, a science comic (spoilered, because it's so, eh, long):

: show
(http://www.smbc-comics.com/comics/1481723478-20161214%20(1)%20(1).png)
Title: Re: Science GIFS
Post by: Arturo on December 20, 2016, 05:23:14 AM
Ha! I enjoyed that. And I always suspected people really weren't doing quantum interference experiments. They aren't that smart.
Title: Re: Science GIFS
Post by: xSilverPhinx on January 02, 2017, 03:43:30 PM
A mathematics gif some of you might appreciate:

(https://media.giphy.com/media/26FL6U89JCjrZjc9a/giphy.gif)
Title: Re: Science GIFS
Post by: Icarus on January 03, 2017, 07:44:53 AM
Thanks xSP, that kind of stuff definitely floats my boat.  The kinematic component really is fun to contemplate.
Title: Re: Science GIFS
Post by: Dave on January 03, 2017, 08:45:21 AM
In the RAF we had a fairly crude wooden training aid that, using a stick of chalk, drew  the sine wave as the wheel was rotated and a board was automatically driven along.

Made the point nicely in pre PC 1961!
Title: Re: Science GIFS
Post by: xSilverPhinx on January 09, 2017, 05:42:58 PM
(https://media.giphy.com/media/2G5llPaffwvio/giphy.gif)
Title: Re: Science GIFS
Post by: Arturo on January 10, 2017, 12:43:59 AM
What is going on in that gif? It looks horrifying.
Title: Re: Science GIFS
Post by: xSilverPhinx on January 10, 2017, 01:17:35 AM
What is going on in that gif? It looks horrifying.

It's going on all around your body. Bwahahahaha!

Mitosis (https://en.m.wikipedia.org/wiki/Mitosis), or division  of somatic (non germinative) cells.
Title: Re: Science GIFS
Post by: xSilverPhinx on January 12, 2017, 12:55:55 AM
(https://media.giphy.com/media/MZmuLgcydiTpm/giphy.gif)
Title: Re: Science GIFS
Post by: joeactor on January 12, 2017, 01:13:59 AM
"Neuron to dendrites... Are you receiving?"
Title: Re: Science GIFS
Post by: xSilverPhinx on January 12, 2017, 01:39:15 AM
"Neuron to dendrites... Are you receiving?"

"Just an echo..."

(https://upload.wikimedia.org/wikipedia/en/5/52/Mechanisms_of_Neural_Backpropagation.jpg)
Title: Re: Science GIFS
Post by: xSilverPhinx on February 12, 2017, 06:00:34 PM
(http://68.media.tumblr.com/6efc64ac399b22c5b999a9bf33cbf84a/tumblr_o94q99WhPu1sk2szio1_1280.gif)
Title: Re: Science GIFS
Post by: xSilverPhinx on February 16, 2017, 01:43:13 PM
(http://68.media.tumblr.com/5e0747dd8b96fa6656e5041cfa81285b/tumblr_o9cks0fPHr1sk2szio1_540.gif)
Title: Re: Science GIFS
Post by: xSilverPhinx on February 16, 2017, 01:44:58 PM
(https://media.giphy.com/media/l41YySXdLA2ju5tYI/giphy.gif)
Title: Re: Science GIFS
Post by: Recusant on February 27, 2017, 06:09:57 PM
(http://i.imgur.com/J7LANQ4.gif)

The article: "This Short Animation Explains Beautifully How Herd Immunity Works: Show this to anyone who asks why they need to get vaccinated." | Science Alert (http://www.sciencealert.com/this-quick-animation-nails-how-herd-immunity-works)

Quote
One of the most common questions you'll hear from people who don't want to get vaccinated is: "But if the people around me are vaccinated, why does it matter?"

And the answer isn't entirely straightforward, because both the reason this person needs to get vaccinated, and the reason they feel they don't have to, come down to the same thing - something called 'herd immunity'.

[Continues . . . (http://www.sciencealert.com/this-quick-animation-nails-how-herd-immunity-works)]
Title: Re: Science GIFS
Post by: Dave on February 27, 2017, 06:24:33 PM
Shows the problem well in a "random" distribution of infected/unvacinated where infection is determined by proximity/contact.

I am guessing the "geographical" distribution is important, you could get dense concentrations of "unvaccinated" in one are even with 90% coverage - leading to a larger number of infections.
Title: Re: Science GIFS
Post by: xSilverPhinx on March 07, 2017, 07:24:27 PM
Good gif, Recusant!
Title: Re: Science GIFS
Post by: xSilverPhinx on April 22, 2017, 04:08:54 PM
(https://i.imgur.com/E66UI0r.gif)

A bacteria (more or less 500 nm) on the eye of a crustacean (more or less 1 mm).
Title: Re: Science GIFS
Post by: xSilverPhinx on April 22, 2017, 04:22:25 PM
(https://exoplanets.nasa.gov/internal_resources/441)

From: https://exoplanets.nasa.gov/news/1404/a-four-planet-system-in-orbit-directly-imaged-and-remarkable/ (https://exoplanets.nasa.gov/news/1404/a-four-planet-system-in-orbit-directly-imaged-and-remarkable/)
Title: Re: Science GIFS
Post by: Magdalena on April 22, 2017, 08:52:01 PM
(https://media.tenor.co/images/aace07f0af8f19c394418a10008745a5/tenor.gif)
Those are amazing, xSilverPhinx!
One is so small and the other one so far away.
Title: Re: Science GIFS
Post by: xSilverPhinx on April 25, 2017, 10:48:43 PM
Good observation! :grin:
Title: Re: Science GIFS
Post by: xSilverPhinx on April 25, 2017, 11:40:34 PM
(https://68.media.tumblr.com/a735347f2ba5b551d22bead7ab38cd3e/tumblr_o7c6wa7ptT1ro2s46o1_250.gif)

Beautiful neurons. :love:
Title: Re: Science GIFS
Post by: xSilverPhinx on May 19, 2017, 01:23:33 PM
(https://33.media.tumblr.com/9fe45501fdc1857a01872610a0aad769/tumblr_ncsip4tGX01rsxqqio1_500.gif)
Title: Re: Science GIFS
Post by: joeactor on May 19, 2017, 07:42:13 PM
^^^ pretty...
Title: Re: Science GIFS
Post by: xSilverPhinx on July 07, 2017, 09:59:22 PM
(http://social.diply.com/article-images/348fa454-bbc6-4df1-a806-bce79001ac1f.gif)
Title: Re: Science GIFS
Post by: Davin on July 10, 2017, 05:21:14 PM
I stared at that for a long time.
Title: Re: Science GIFS
Post by: xSilverPhinx on July 10, 2017, 09:49:23 PM
I stared at that for a long time.

Mesmerising, right?  :watching:
Title: Re: Science GIFS
Post by: Davin on July 10, 2017, 10:10:37 PM
I stared at that for a long time.

Mesmerising, right?  :watching:
Yeah... I just stared at it again for a few minutes.
Title: Re: Science GIFS
Post by: xSilverPhinx on July 11, 2017, 03:56:12 AM
Here's another, IMO:

(http://social.diply.com/article-images/616b70bf-3b2a-4fa0-8538-dd1f1e2efcb3.gif)
Title: Re: Science GIFS
Post by: Davin on July 11, 2017, 03:30:55 PM
 :watching: Yes....

Yes... that is a good one too.

I also like this one.
(https://s-media-cache-ak0.pinimg.com/originals/eb/2c/fb/eb2cfbd6e0b900baae7d680ab41c9f77.jpg)
Title: Re: Science GIFS
Post by: Dave on July 11, 2017, 04:27:36 PM
:watching: Yes....

Yes... that is a good one too.

I also like this one.
(https://s-media-cache-ak0.pinimg.com/originals/eb/2c/fb/eb2cfbd6e0b900baae7d680ab41c9f77.jpg)

So do I, so long as it stays on your side of the Pond!

 :grin:
Title: Re: Science GIFS
Post by: Essie Mae on July 12, 2017, 08:23:11 PM
I particularly like the sine wave and the herd immunity but they are all brilliant.
Title: Re: Science GIFS
Post by: Essie Mae on July 12, 2017, 08:38:26 PM
Incidentally, what are the applications of sine waves?
Title: Re: Science GIFS
Post by: Dave on July 12, 2017, 09:29:56 PM
Incidentally, what are the applications of sine waves?

Can't remember that gif, was it something like a spoke or radius rotating in a circle with the resultant wave form?

In both mechanical and electrical theory sine waves are very important, they are the "shape" of the electricity from your sockets, the basic shape of the "carrier signal" in radio transmissions and the shape of any pure audio tone. It is also the wave shape that would be drawn by a weight bouncing up and down on a spring. Remember the old "Spirograph"? That could draw sine waves if you set it up right, even sine waves in a circle to make sort of flower patterns - great fun!

The number of waves per second gives you the frequency, so a 1 kiloHertz tone would be 1000 full waves, or cycles,, like a "S" on its side, per second. Hertz was the guy credited with discovering this cyclic nature when he nannaged to transmit energy, through the air,  from a "transmitter" to a "receiver" - Marconi cashed in by sending "intelligence", a Morse code message, using Hertz' principles.



Wikipedia has, of course, an article on them: https://en.m.wikipedia.org/wiki/Sine_wave. The full name is "sinusoidal waveform"
Title: Re: Science GIFS
Post by: Icarus on July 12, 2017, 09:58:05 PM
Another curiosity: Imagine that you have attached a tiny light to the bottom sidewall of an auto tire. When the automobile moves, the light will describe a half sine wave. 
Title: Re: Science GIFS
Post by: hermes2015 on July 13, 2017, 07:36:59 AM
Another curiosity: Imagine that you have attached a tiny light to the bottom sidewall of an auto tire. When the automobile moves, the light will describe a half sine wave.

I may be wrong, but I thought the light would describe a cycloid curve?
Title: Re: Science GIFS
Post by: Essie Mae on July 13, 2017, 08:47:16 PM
Thanks for that Gloucs, Icarus and Hermes. I don't pretend to fully understand your replies but I sort of get it and I do remember being quite fascinated by the Spirograph. I am not a trained maths teacher, but when I was doing Home Hospital teaching, there were no GCSE maths teachers so I had to do it and thoroughly enjoyed it and managed to get by with lots of preparation but didn't always know why I was teaching it.
Title: Re: Science GIFS
Post by: Dave on July 13, 2017, 09:46:44 PM
Another curiosity: Imagine that you have attached a tiny light to the bottom sidewall of an auto tire. When the automobile moves, the light will describe a half sine wave.

I may be wrong, but I thought the light would describe a cycloid curve?

Hmm, if you think of it a pen in a rotating disc with a sheet of paper sliding past under it - so the pen draws the sine wave on the paper - seems no different than the paper being still and the disc rolling along. The latter being analogous to the light/wheel set-up.

But you have me wondering now!

OK, checked on it, you are correct, Hermes, the rolling wheel gives a cycloid.

Something to think about there!
Title: Re: Science GIFS
Post by: Icarus on July 14, 2017, 12:54:04 AM
You two are both correct. The path of the light is in fact cycloidal. Shame on me for claiming otherwise. .... I had to lay it out on a sheet of paper to prove it to myself. That is a quirk of mine....the do it yourself thing.... it would be much easier to consult Wikipedia, which I did after the fact. Sure enough a good explanation is there on Wiki.  Better mental exercise to do it on a sheet of paper with the trusty calculator close at hand.  The presence of the calculator implies that there is a limit to ones dedication to mental exercise.  :cauldron:

OK how 'bout we toss a rock toward the nasty neighbors window, and trace its path? Sinusoidal?  That does have the critical exponent two in the equation.
Title: Re: Science GIFS
Post by: hermes2015 on July 14, 2017, 05:26:27 AM
OK how 'bout we toss a rock toward the nasty neighbors window, and trace its path? Sinusoidal? ....

No, ideally parabolic, but a bit distorted owing to atmospheric drag.
Title: Re: Science GIFS
Post by: hermes2015 on July 14, 2017, 05:53:44 AM
To take the wheel and light setup further, if one did not place the light on the rim, but somewhere else on the wheel, would its path still be a cycloid?

Dead centre, on the axle, the path would be a straight line, but what about, say, halfway along the radius? Or even at a point beyond the rim (greater than the radius)?
Title: Re: Science GIFS
Post by: Arturo on July 14, 2017, 07:15:03 AM
To take the wheel and light setup further, if one did not place the light on the rim, but somewhere else on the wheel, would its path still be a cycloid?

Dead centre, on the axle, the path would be a straight line, but what about, say, halfway along the radius? Or even at a point beyond the rim (greater than the radius)?

What if you put the light on the tread facing outwards, and say the wheel is alone, rotating as it normally would, in space?

EDIT: Like this
: show
(http://1.bp.blogspot.com/-Gsk5pwhofb8/VfxTkknenfI/AAAAAAAAt8U/I8gJJ_M0kuE/s640/space-station.gif)
Title: Re: Science GIFS
Post by: Dave on July 14, 2017, 07:37:15 AM
To take the wheel and light setup further, if one did not place the light on the rim, but somewhere else on the wheel, would its path still be a cycloid?

Dead centre, on the axle, the path would be a straight line, but what about, say, halfway along the radius? Or even at a point beyond the rim (greater than the radius)?

We need a Spirograph to play with!

@ Icarus: "I need to see for myself", or, "I need to work it out for myself" has always been my problem in fully understanding, or perhaps accepting, things as well. It is not "real" unless I can see it physically demonstrated in some cases. There are, of course, things one just has to accept - building a nuclear reactor at home is hardly practical . . .
Title: Re: Science GIFS
Post by: Magdalena on July 14, 2017, 07:38:59 AM
^^^
Sorry, I don't know what you guys are talking about.
I'm just gonna post a GIF...that's all.
****************

:watching: Yes....

Yes... that is a good one too.

I also like this one.
(https://s-media-cache-ak0.pinimg.com/originals/eb/2c/fb/eb2cfbd6e0b900baae7d680ab41c9f77.jpg)

(http://bestanimations.com/Nature/Storms/incredible-lightning-strike-while-driving-animated-gif.gif)

 :worried:
Title: Re: Science GIFS
Post by: Dave on July 14, 2017, 08:21:24 AM
To take the wheel and light setup further, if one did not place the light on the rim, but somewhere else on the wheel, would its path still be a cycloid?

Dead centre, on the axle, the path would be a straight line, but what about, say, halfway along the radius? Or even at a point beyond the rim (greater than the radius)?

What if you put the light on the tread facing outwards, and say the wheel is alone, rotating as it normally would, in space?

EDIT: Like this
: show
(http://1.bp.blogspot.com/-Gsk5pwhofb8/VfxTkknenfI/AAAAAAAAt8U/I8gJJ_M0kuE/s640/space-station.gif)


Not sure if being on the edge or half way across the tread makes much difference.

In terms of the sine wave or whatever being described a sort of "relativity" must come into place - the relsaive motions of the object (the wheel) and whatever is being "written" on. It is the conversion from rotational to linear motion, the relative position of a point on each component over time . . . sort of.

As for the space station: what is its "partner" in the "relativity" dance? Where are you, the observer, standing? This is a case of frequency of rotation versus the velocity of overall motion against the background. The rotational frequency of the car wheel is directionally proportional to its velocity on the road (assuming no wheel spins or skids!)- or its passing the stationary observer. The space station has no real constraints in the difference between its rotational frequency and linear velocity through free space. Thus a point on its edge could describe any possible shape, cycloid, a series of loops etc.

So, new question, what wave shapes are produced if the velocity if the linear motion of the rotating station through space is less or greater than its "equivalent" velocity if it was rolling along a surface?
Title: Re: Science GIFS
Post by: Dave on July 14, 2017, 08:47:56 AM
This is where maths and me hit head to head!

I can see that it is possible to generate a formula that, taking the rotational frequency and the velocity of linear motion of the centre of a rotating disc, decribes the resultant wave form. But I have no idea of how to even start on it!

So i would turn to physical, mechanical means, making wheels etc, and then, possibly, deriving the math from measuring actual examples. Don't have the skills to write an algorithm either!

Later: looking for clues I found this (https://www.google.co.uk/url?sa=t&source=web&rct=j&url=https://www.physics.purdue.edu/webapps/index.php/course_document/index/phys214/1225/58/6957.pdf&ved=0ahUKEwjHg_HaqYjVAhWBJMAKHb18DbsQFggnMAI&usg=AFQjCNH22uK95QUzVg36CDBnP-4lUf7G7g)

I want to do experinent 1C-05. That's my kind of science!
Title: Re: Science GIFS
Post by: xSilverPhinx on July 14, 2017, 10:03:51 AM
(http://bestanimations.com/Nature/Storms/incredible-lightning-strike-while-driving-animated-gif.gif)

 :worried:

:tellmemore:
Title: Re: Science GIFS
Post by: Dave on July 14, 2017, 10:26:59 AM
Why are violent, even disasrous, scenes so fascinating? Lightening strikes, floods, tornadoes, earthquakes, eruptions . . . All hold our attention, fascination tinged, sometimes, with empathy, compassion, even a sort of vicarious horror, for any people involved.
Title: Re: Science GIFS
Post by: Claireliontamer on July 14, 2017, 10:56:14 AM
Why are violent, even disasrous, scenes so fascinating? Lightening strikes, floods, tornadoes, earthquakes, eruptions . . . All hold our attention, fascination tinged, sometimes, with empathy, compassion, even a sort of vicarious horror, for any people involved.

I think it's quite safe for us on our mild little island where really the biggest risk is inland flooding.  I'm not sure I'd be quite so fascinated if I lived in the middle of tornado valley or at the foot of an active volcano!
Title: Re: Science GIFS
Post by: hermes2015 on July 14, 2017, 11:05:54 AM
This is where maths and me hit head to head!

I can see that it is possible to generate a formula that, taking the rotational frequency and the velocity of linear motion of the centre of a rotating disc, decribes the resultant wave form. But I have no idea of how to even start on it!

So i would turn to physical, mechanical means, making wheels etc, and then, possibly, deriving the math from measuring actual examples. Don't have the skills to write an algorithm either!

Later: looking for clues I found this (https://www.google.co.uk/url?sa=t&source=web&rct=j&url=https://www.physics.purdue.edu/webapps/index.php/course_document/index/phys214/1225/58/6957.pdf&ved=0ahUKEwjHg_HaqYjVAhWBJMAKHb18DbsQFggnMAI&usg=AFQjCNH22uK95QUzVg36CDBnP-4lUf7G7g)

I want to do experinent 1C-05. That's my kind of science!

Look at this page.

https://thatsmaths.com/2015/09/17/the-ubiquitous-cycloid/

If the light is outside the rim, it traces a prolate cycloid.

Are you familiar with shapes of constant width? They make it possible to have triangular or square wheels that give a smooth, non-bumpy ride. Wheels do not have to be circular!
Title: Re: Science GIFS
Post by: Dave on July 14, 2017, 12:57:40 PM
This is where maths and me hit head to head!

I can see that it is possible to generate a formula that, taking the rotational frequency and the velocity of linear motion of the centre of a rotating disc, decribes the resultant wave form. But I have no idea of how to even start on it!

So i would turn to physical, mechanical means, making wheels etc, and then, possibly, deriving the math from measuring actual examples. Don't have the skills to write an algorithm either!

Later: looking for clues I found this (https://www.google.co.uk/url?sa=t&source=web&rct=j&url=https://www.physics.purdue.edu/webapps/index.php/course_document/index/phys214/1225/58/6957.pdf&ved=0ahUKEwjHg_HaqYjVAhWBJMAKHb18DbsQFggnMAI&usg=AFQjCNH22uK95QUzVg36CDBnP-4lUf7G7g)

I want to do experinent 1C-05. That's my kind of science!

Look at this page.

https://thatsmaths.com/2015/09/17/the-ubiquitous-cycloid/

If the light is outside the rim, it traces a prolate cycloid.

Are you familiar with shapes of constant width? They make it possible to have triangular or square wheels that give a smooth, non-bumpy ride. Wheels do not have to be circular!

The prolate cycloid, though I knew not its name, was how I envisioned the "outside the circumference" case.

Seen several vehicles on Youtube that had other than circular wheels.
Title: Re: Science GIFS
Post by: Davin on July 14, 2017, 04:11:02 PM
(http://bestanimations.com/Nature/Storms/incredible-lightning-strike-while-driving-animated-gif.gif)

 :worried:

:tellmemore:
Add in a volcano
(http://gif-finder.com/wp-content/uploads/2016/07/Volcanic-Lightning-During-an-Eruption.gif)
Title: Re: Science GIFS
Post by: Icarus on July 14, 2017, 06:34:20 PM
Thanks for the cool links Gloucester and Hermes. 

........And for the pix of the scary weather you other guys.

This is a fun place to spend an inordinate amount of time.
Title: Re: Science GIFS
Post by: Essie Mae on July 16, 2017, 09:51:56 PM
This is where maths and me hit head to head!

I can see that it is possible to generate a formula that, taking the rotational frequency and the velocity of linear motion of the centre of a rotating disc, decribes the resultant wave form. But I have no idea of how to even start on it!

So i would turn to physical, mechanical means, making wheels etc, and then, possibly, deriving the math from measuring actual examples. Don't have the skills to write an algorithm either!


Is that a bit like what Gaudi did? To work out building stresses he hung loops of chains in the relative sizes of his planned  buildings and derived the formulae for his designs from that. At least, that's what ESs of little brain understood.
Title: Re: Science GIFS
Post by: Dave on July 16, 2017, 10:26:05 PM
This is where maths and me hit head to head!

I can see that it is possible to generate a formula that, taking the rotational frequency and the velocity of linear motion of the centre of a rotating disc, decribes the resultant wave form. But I have no idea of how to even start on it!

So i would turn to physical, mechanical means, making wheels etc, and then, possibly, deriving the math from measuring actual examples. Don't have the skills to write an algorithm either!


Is that a bit like what Gaudi did? To work out building stresses he hung loops of chains in the relative sizes of his planned  buildings and derived the formulae for his designs from that. At least, that's what ESs of little brain understood.

Yup, the good old empirical method, suck it and see!

It seems that many first attempts at building big cathedrals in the early middle ages ended up as piles of rubble, expensive piles of rubble. But, for the greater glory of god they kept trying, and it seems they learned a few things.

Now I can look at a shape and envision most of the forces in it, whether it will stand up or not, only because hundreds or thousands of people have built things that last and I have seen them and understood them. Would take me forever to work out the actual forces and stresses at any one point though! Just don't have the maths - and no inclination to acquire them!

But some ifvthe computer dedigns are increrible, like a web where each member is designed exactly to take its planned stress (150% to 200% of expected working stress say). Often looks like more air thsn matter! The video below is nit the one I wanted to find, but it serves, in parts.


PS
An old boss, mechanical engineer, had the idea that to lighten a structure and save material you drilled holes in it until it fell apart. In your second prototype you missed out drilling that last hole.
Title: Re: Science GIFS
Post by: hermes2015 on July 17, 2017, 05:50:06 AM
Yes, Gaudi and others as well. I don't know how Buckminster Fuller got to his geodesic domes, but I expect it was a more mathematical approach based on the known rigidity of a triangle.

This again shows how much is out there to explore, especially with the addictive internet searches. As some of us have said, one lifetime is not enough. As a child I could never just look up something in a dictionary or encyclopaedia without getting sidetracked; often forgetting what I was trying to find at the outset.

That TED talk is very interesting, Gloucester. Thanks for the link.

A little seed for you: have you heard of the Yoshimoto cube? It is on my list of things to make.
Title: Re: Science GIFS
Post by: Dave on July 17, 2017, 08:33:38 AM
You and I are a good match at this level, Hermes! I also "branched off" in my early resesrches into things. Also had an esrly tendrncy to "connect" things together, look for links betwern ideas.

Think there dhould be a "chst thread" for this sort of thing!
Title: Re: Science GIFS
Post by: hermes2015 on July 17, 2017, 09:51:56 AM
I don't think I have revealed this before, but I have one great hero, Charles Eames. No, not a scientist, but an architect and designer. He is one of the famous people I would have liked to meet, but unfortunately, just before that was due to happen, he died unexpectedly in 1978. I have been collecting his furniture for many years. Anyway, this is one of his famous quotations about connections:

Eventually everything connects — people, ideas, objects...the quality of the connections is the key to quality per se...I don't believe in this 'gifted few' concept, just in people doing things they are really interested in doing. They have a way of getting good at whatever it is.
Title: Re: Science GIFS
Post by: Dave on July 17, 2017, 10:29:07 AM
I don't think I have revealed this before, but I have one great hero, Charles Eames. No, not a scientist, but an architect and designer. He is one of the famous people I would have liked to meet, but unfortunately, just before that was due to happen, he died unexpectedly in 1978. I have been collecting his furniture for many years. Anyway, this is one of his famous quotations about connections:

Eventually everything connects — people, ideas, objects...the quality of the connections is the key to quality per se...I don't believe in this 'gifted few' concept, just in people doing things they are really interested in doing. They have a way of getting good at whatever it is.

I can only agree with Mr Eames!

Form and function are amongst the more important connections for me. The controls on that shower unit I bought, mirror smooth (apart from one ridge) are a case, for me their form did not connect to their function - to be used by soapy hands. Had I seen that unit set-up in a sales display, rather than a picture on a box, I would have spotted that problem. With the old shower fixed I now have nicely scalloped controls that I can grip easily. To hell with style, give me function every time!

On people, yes, my friend Jane has little knowledge of most forms on engineering, but has a very practical mind and an intuitive understanding as to why things stand up - she argues with builders to get her way and is usually right. It takes only a little encouragement to get her thinking branching out and her confidence building. At nearly 74 she still has more faculties than some younger prople - just never ask her to do maths beyond primary school level!

On things standing up, or not falling down, I can recommend J E Gordon's "Structures: Or Why Things Don't Fall Down"

https://www.amazon.co.uk/Structures-Things-Dont-Fall-Down-ebook/dp/B002XHNNHU/ref=sr_1_1?s=books&ie=UTF8&qid=1500282962&sr=1-1&keywords=Why+things+fall+down

Paperbacks available from a fiver (used) to £100+

Buckminster-Fuller is one of my heroes, for his visionary perception. I have a "tensegrity" model on my toy shelf.
(http://i.imgur.com/bOQuYJr.jpg)
Title: Re: Science GIFS
Post by: xSilverPhinx on September 01, 2017, 12:25:21 AM
(https://i.giphy.com/media/l1J3UOgSEEnUrUcla/giphy.webp)

A nanobot taking a spermatozoide to the egg.
Title: Re: Science GIFS
Post by: Dave on September 01, 2017, 08:42:36 AM
(https://i.giphy.com/media/l1J3UOgSEEnUrUcla/giphy.webp)

A nanobot taking a spermatozoide to the egg.

That sort of thing gets my mind fizzing! I assume they used rotating and directional magnetic fields to power, navigate and instruct the bot.
Title: Re: Science GIFS
Post by: joeactor on September 06, 2017, 08:54:25 PM
Not a GIF, but interesting to see what DNA looks like in a cell:
Title: Re: Science GIFS
Post by: Dave on September 06, 2017, 09:17:45 PM
Not a GIF, but interesting to see what DNA looks like in a cell:

Maybe I am old fashioned and to stuffy but I am putboff by these frenetic presenters with their extreme facial expressions and wave-about hand gestures. But, if it works for the kids I will just quietly ignore it and go for the likes of  Neil deGrasse Tyson , Jim Al-Khalili or even Brian Cox. I especially miss the laid back Richard Feynman
Title: Re: Science GIFS
Post by: Icarus on September 07, 2017, 12:36:10 AM
I'm with you Dave. Too much show business does not do anything for my understanding of the subject matter.  In the case of the video I will generously write it off as unbridled enthusiasm for the subject matter, by the presenter. 

There is a You Tube video that shows a young black man who is a teacher, He has a weird hairdo.  He teaches his lessons with a rap music format.  The claim is that it works well for his elementary grade students.  He be jivein' man.  Not my cup of tea but if it works for him and his class.....then go for it.   

The kids can go home or out to the playground and rap the multiplication tables I suppose.
Title: Re: Science GIFS
Post by: hermes2015 on September 07, 2017, 06:10:30 AM
I agree on a personal level, but at the same time believe that anything that will perhaps plant a seed of interest in science in a young mind is useful.
Title: Re: Science GIFS
Post by: Davin on September 07, 2017, 03:12:53 PM
There is a You Tube video that shows a young black man who is a teacher, He has a weird hairdo.  He teaches his lessons with a rap music format.  The claim is that it works well for his elementary grade students.  He be jivein' man.  Not my cup of tea but if it works for him and his class.....then go for it.

Not my cup of tea. But I'm not a little kid (in age), anymore.

Not a GIF, but interesting to see what DNA looks like in a cell:
https://www.youtube.com/watch?v=aT9T9h-2Jp8 (https://www.youtube.com/watch?v=aT9T9h-2Jp8)
I did like that. A very clear demonstration of what he was talking about, which make things easier to take in.
Title: Re: Science GIFS
Post by: xSilverPhinx on April 15, 2018, 02:36:15 PM
(https://i.redd.it/j9u37hlqctr01.gif)

Neuron making connections in cell culture.
Title: Re: Science GIFS
Post by: Dave on April 15, 2018, 03:51:48 PM
Y'know, just makes me think that the old idea that we are really just colonies of, once individual, single-celled organisms that shared genes and merged has some merit . . .
Title: Re: Science GIFS
Post by: xSilverPhinx on September 27, 2018, 02:19:02 AM
https://www.amoebasisters.com/gifs.html (https://www.amoebasisters.com/gifs.html)

These are some good gifs, I'm going to use some of them for my classes.  8)
Title: Re: Science GIFS
Post by: Tank on September 27, 2018, 06:58:30 PM
https://www.amoebasisters.com/gifs.html (https://www.amoebasisters.com/gifs.html)

These are some good gifs, I'm going to use some of them for my classes.  8)
Those are excellent.
Title: Re: Science GIFS
Post by: Bluenose on September 28, 2018, 06:55:57 AM
https://www.amoebasisters.com/gifs.html (https://www.amoebasisters.com/gifs.html)

These are some good gifs, I'm going to use some of them for my classes.  8)

Thanks for sharing those, they're great!