Happy Atheist forum

General => Science => Topic started by: Sandra Craft on December 01, 2015, 06:26:52 AM

Title: Fun Science Videos
Post by: Sandra Craft on December 01, 2015, 06:26:52 AM
This is just one of the vids a group called Stated Clearly has put up: 
Title: Re: Fun Science Videos
Post by: Davin on December 01, 2015, 02:26:45 PM
I like that, it was very well done.
Title: Re: Fun Science Videos
Post by: joeactor on December 01, 2015, 02:48:41 PM
I watched "Beakman's World" growing up (with Paul Zaloom) - here's one episode:
Title: Re: Fun Science Videos
Post by: Dave on July 06, 2016, 11:30:00 AM
This is just one of the vids a group called Stated Clearly has put up: 
Excellent, Books, I know just who to share that with  :devil:
Title: Re: Fun Science Videos
Post by: Tank on August 03, 2016, 06:44:27 AM
Title: Re: Fun Science Videos
Post by: Asmodean on August 03, 2016, 05:16:00 PM
Blatant plagiarism of His Divine Posts!  >:(

Actually, what I wanted to point out is, go to that YT channel and check out the rest of David Butler's (https://www.youtube.com/channel/UCNwSxyl2KmhdAjHLR6xGR0A) stuff. He has three video books out, and they are certainly worth watching for any one with an interest for physics and cosmology, but who doesn't necessarilly have the Math™ or the patience to follow the heavier stuff like Leonard Susskind's lecture vids.

Title: Re: Fun Science Videos
Post by: Dave on August 14, 2016, 05:17:02 PM
Interesting if not actually fun. Echos of what hapoened on London's Millienium Bridge, randomness turning to synch caused by pedestrian gait compensation and a natural harmonic turning into amplificstion of its inherent sway.

Turn your volume low...

http://m.wimp.com/32-out-of-sync-metronomes-end-up-synchronizing/ (http://m.wimp.com/32-out-of-sync-metronomes-end-up-synchronizing/)
Title: Re: Fun Science Videos
Post by: Dave on August 20, 2016, 01:43:56 PM
This has potential for so, so much!

Title: Re: Fun Science Videos
Post by: Tom62 on August 20, 2016, 09:13:15 PM
Title: Re: Fun Science Videos
Post by: Dave on August 20, 2016, 09:27:19 PM
Watched that before, good graphics but . . .

With the stars moving away from the viewer one expects them to get smaller anyway. This distracts from the actual visual size comparison, a side-by-side line with a parallel tracking camera, pulling back but with all the line always in view, effect might have been better. O K, the planets soon get too small to represent, but that is part of the picture - on the universal scale we live on an insignificant, microscopic blue dot.
Title: Re: Fun Science Videos
Post by: Tom62 on August 21, 2016, 09:57:30 AM
Watched that before, good graphics but . . .

With the stars moving away from the viewer one expects them to get smaller anyway. This distracts from the actual visual size comparison, a side-by-side line with a parallel tracking camera, pulling back but with all the line always in view, effect might have been better. O K, the planets soon get too small to represent, but that is part of the picture - on the universal scale we live on an insignificant, microscopic blue dot.

I fully agree that it could have been done a little bit better.
Title: Re: Fun Science Videos
Post by: joeactor on August 23, 2016, 08:01:06 PM
This has potential for so, so much!


Very cool!

Here's a somewhat related one where sound is captured from video only:
Title: Re: Fun Science Videos
Post by: Dave on August 23, 2016, 10:05:36 PM
This has potential for so, so much!


Very cool!

Here's a somewhat related one where sound is captured from video only:
That was fascinating, with great implications for medical diagnostics and monitoring!

With ever faster, smaller and cheaper technology Star Trek like monitoring systems are not far away maybe..
Title: Re: Fun Science Videos
Post by: Essie Mae on August 23, 2016, 11:24:45 PM
Interesting if not actually fun. Echos of what hapoened on London's Millienium Bridge, randomness turning to synch caused by pedestrian gait compensation and a natural harmonic turning into amplificstion of its inherent sway.

Turn your volume low...

http://m.wimp.com/32-out-of-sync-metronomes-end-up-synchronizing/ (http://m.wimp.com/32-out-of-sync-metronomes-end-up-synchronizing/)

Almost creepy but brilliantly mind-blowing.
Title: Re: Fun Science Videos
Post by: xSilverPhinx on August 24, 2016, 02:49:38 AM

A little long but very interesting.
Title: Re: Fun Science Videos
Post by: Icarus on September 02, 2016, 02:14:12 AM
  http://www.sciencealert.com/nasa-wants-to-send-an-autonomous-submarine-to-explore-titan-s-oceans?perpetual=yes&limitstart=1 
Title: Re: Fun Science Videos
Post by: Icarus on November 28, 2016, 10:29:56 PM
This is  fun stuff by Veritasium. There are lots of other short vids there.   https://www.youtube.com/watch?v=LgrXd0NM2y8
Title: Re: Fun Science Videos
Post by: joeactor on March 08, 2017, 08:53:10 PM
Aardman animation and William Shatner with the BBC on Mars:
(worth a watch)

http://www.bbc.co.uk/programmes/p04vjrh0 (http://www.bbc.co.uk/programmes/p04vjrh0)
Title: Re: Fun Science Videos
Post by: Arturo on March 16, 2017, 06:09:34 AM
In case anybody is alive and wants to see it

https://youtu.be/lZmqbL-hz7U

Spaces live stream of a rocket launching into space
Title: Re: Fun Science Videos
Post by: Icarus on March 22, 2017, 02:05:59 AM
Here is one that is in the same ballpark as the one Books showed us on the previous page. https://www.youtube.com/watch?v=6HboF1R-ILg

I'd not want to be a biology teacher in many places in the USA. They have to be ever so frustratingly careful if they want to keep their job.
Title: Re: Fun Science Videos
Post by: Papasito Bruno on May 17, 2017, 10:02:23 PM
Stunning short film about the Apollo moon landing made from astronauts' photos

(http://i.imgur.com/WuDo6nK.jpg)

Quote
Motion designer Christian Stangl and composer Wolfgang Stangl created this gorgeous short film, titled LUNAR, from thousands of NASA photographs taken by astronauts.

This is a really cool video, watch here...do it. NOW. GO FULL SCREEN AND TURN UP THE VOLUME:
(http://boingboing.net/2017/05/17/stunning-short-film-about-the.html)
Title: Re: Fun Science Videos
Post by: Magdalena on May 17, 2017, 10:32:30 PM
^^^
Thank you, Father.
Very nice. I'm probably gonna watch that video many times.  :tellmemore:
Title: Re: Fun Science Videos
Post by: joeactor on May 20, 2017, 02:21:33 PM
Full cloud inversion at the Grand Canyon:
https://www.buzzfeed.com/laurageiser/watch-the-grand-canyon-get-swallowed-by-a-thick-fog?utm_term=.wl0WyRXgZK#.rbkWQZv9Nj (https://www.buzzfeed.com/laurageiser/watch-the-grand-canyon-get-swallowed-by-a-thick-fog?utm_term=.wl0WyRXgZK#.rbkWQZv9Nj)

My question... How is this different from fog?
Title: Re: Fun Science Videos
Post by: Dave on May 20, 2017, 06:23:14 PM
Full cloud inversion at the Grand Canyon:
https://www.buzzfeed.com/laurageiser/watch-the-grand-canyon-get-swallowed-by-a-thick-fog?utm_term=.wl0WyRXgZK#.rbkWQZv9Nj (https://www.buzzfeed.com/laurageiser/watch-the-grand-canyon-get-swallowed-by-a-thick-fog?utm_term=.wl0WyRXgZK#.rbkWQZv9Nj)

My question... How is this different from fog?

It isn't, sorf of,  but it is a superb piece of cinematography, or videography, and I don't care - so there!  :nanana:
Title: Re: Fun Science Videos
Post by: Sandra Craft on May 21, 2017, 12:51:13 AM
Full cloud inversion at the Grand Canyon:
https://www.buzzfeed.com/laurageiser/watch-the-grand-canyon-get-swallowed-by-a-thick-fog?utm_term=.wl0WyRXgZK#.rbkWQZv9Nj (https://www.buzzfeed.com/laurageiser/watch-the-grand-canyon-get-swallowed-by-a-thick-fog?utm_term=.wl0WyRXgZK#.rbkWQZv9Nj)

My question... How is this different from fog?

I usually associate fog with the sea, but whatever this is it's incredibly beautiful and cool.
Title: Re: Fun Science Videos
Post by: joeactor on May 22, 2017, 02:34:24 PM
Agreed Gloucester and BCE - it's very mesmerizing...
Title: Re: Fun Science Videos
Post by: Dave on May 22, 2017, 02:47:45 PM
Why is it that "fog" seems to dank and dismal whereas "mist" is all mystical and ethereal?

"Head down he tramped his way, wearily, through the London mist . . ." just doesn't cook the cookie somehow.
Title: Re: Fun Science Videos
Post by: Dave on June 02, 2017, 03:40:32 PM
This is something I have to try!

Cheap, fun demo of vacuum power!

Title: Re: Fun Science Videos
Post by: Sandra Craft on June 02, 2017, 08:33:28 PM
Why is it that "fog" seems to dank and dismal whereas "mist" is all mystical and ethereal?

"Head down he tramped his way, wearily, through the London mist . . ." just doesn't cook the cookie somehow.
:snicker:


This is something I have to try!

Cheap, fun demo of vacuum power!


Question: what would this be used for?
Title: Re: Fun Science Videos
Post by: Dave on June 02, 2017, 08:58:31 PM
Why is it that "fog" seems to dank and dismal whereas "mist" is all mystical and ethereal?

"Head down he tramped his way, wearily, through the London mist . . ." just doesn't cook the cookie somehow.
:snicker:


This is something I have to try!

Cheap, fun demo of vacuum power!


Question: what would this be used for?

Well, at the RAF experimental place there was a giant vacuum gun that was built to shoot frozen chickens, at Mach 2, at Concorde windscreens...SUPER-SPLATTT!!! Safer than pumping up a big pressure tank to 1000 pounds per square inch and letting rip with that.

There are basic principles to be taught about construction, vacuum, air pressure, material strength ... that this thing could be used to teach kids. Let's face it, most kids, boys especially, like shooting drinks cans off walls. The more fun, the more destruction, the more sticks.

My favourite back-yard demo was a flour bomb. Large biscuit tin with a small hole in the base for a small funnel, a night-light candle, some fine flour, a long plastic tube and a tyre pump (or a big puff). Stand tin on two bricks or something, funnel in hole with plastic tube attached, flour in funnel. Place and light candle, put lid on. Connect pump to tube.

Dramatic count down, hit pump. Flour gets blown out of funnel in finely dispersed cloud. Cloud hits candle flame and rapid flame front created - expanding air/gas blows tin lid off. Gets even more fun if you add magnesium powder to flour.

Dust explosions can be dangerous, I know, been in the middle of one...
Title: Re: Fun Science Videos
Post by: Dave on July 15, 2017, 09:16:07 PM
Just for Hermes.

And Icarus.

And Essie.

And . . .

Well, OK then, the rest of you can watch if you like!   :grin:

I think Numberphile is great.

Title: Re: Fun Science Videos
Post by: Icarus on July 15, 2017, 10:24:07 PM
^ Sensational demonstration......well not sensational to everyone. We math/physics/sciences nerds are turned on by such stuff.

One of my regrets about being so old is that there is so little time left to learn about all those fascinating things. 

...

OK I  will need to come back with something fun. Here is a young woman, who calls herself physics girl. She is completely charming in her own way.  She could relate to, and capture the interests of, high school kids because she makes science fun, even exciting.  There are numerous videos with this young woman. Here is one of them......
 https://www.youtube.com/watch?v=2Ut0F4a9dQk
Title: Re: Fun Science Videos
Post by: hermes2015 on July 16, 2017, 05:27:24 AM
Just for Hermes.

And Icarus.

And Essie.

And . . .

Well, OK then, the rest of you can watch if you like!   :grin:

I think Numberphile is great.


Thank you, Gloucester! I wonder why I find these things so fascinating. I would love to have some of those solids in my toy box.
Title: Re: Fun Science Videos
Post by: Dave on July 16, 2017, 05:42:37 AM
Just for Hermes.

And Icarus.

And Essie.

And . . .

Well, OK then, the rest of you can watch if you like!   :grin:

I think Numberphile is great.


Thank you, Gloucester! I wonder why I find these things so fascinating. I would love to have some of those solids in my toy box.

Yeah, me too. Unfortunately they are sold out at Maths Gear and no word about future availability.
Title: Re: Fun Science Videos
Post by: Dave on July 16, 2017, 05:46:37 AM
I think the fascination comes from a kind of disonance, a tension, between the intellectual understanding and an instinctive disbelief that such shapes can provide a smooth ride.

Think I might get a scooter and make some constant width wheels out of ply for it!
Title: Re: Fun Science Videos
Post by: hermes2015 on July 16, 2017, 05:56:45 AM
We math/physics/sciences nerds are turned on by such stuff.

One of my regrets about being so old is that there is so little time left to learn about all those fascinating things. 

Add art, music, architecture. Life is far too short.
Title: Re: Fun Science Videos
Post by: hermes2015 on July 16, 2017, 05:59:42 AM
I think the fascination comes from a kind of disonance, a tension, between the intellectual understanding and an instinctive disbelief that such shapes can provide a smooth ride.

Think I might get a scooter and make some constant width wheels out of ply for it!

It would be interesting to make one of those solids as well.
Title: Re: Fun Science Videos
Post by: Dave on July 16, 2017, 09:37:45 AM
I think the fascination comes from a kind of disonance, a tension, between the intellectual understanding and an instinctive disbelief that such shapes can provide a smooth ride.

Think I might get a scooter and make some constant width wheels out of ply for it!

It would be interesting to make one of those solids as well.

Yeah, been trying to work out how - without a 3D ptinter.
Title: Re: Fun Science Videos
Post by: hermes2015 on July 16, 2017, 11:07:29 AM
Think I might get a scooter and make some constant width wheels out of ply for it!

Oops, no, that will not give a smooth ride, because the constant width wheels only function smoothly as rollers, but because their centres go up and down, they are not efficient as wheels. I only realized this when I watched this video: https://www.youtube.com/watch?v=2eUWT9cI23o.
Title: Re: Fun Science Videos
Post by: Dave on July 16, 2017, 12:21:11 PM
Think I might get a scooter and make some constant width wheels out of ply for it!

Oops, no, that will not give a smooth ride, because the constant width wheels only function smoothly as rollers, but because their centres go up and down, they are not efficient as wheels. I only realized this when I watched this video: https://www.youtube.com/watch?v=2eUWT9cI23o.

Oops, forgot that!

Hmm, would it be possible to make a hole in the middle that was the same shape, hole sides a constant dustance from the edge on that radius? Might need to be wide and have "cheek plates" either side. Though the wheel profile could be triangular with the "point" at the rim for ease of turning corners . . . 
Title: Re: Fun Science Videos
Post by: hermes2015 on July 16, 2017, 01:15:12 PM
Think I might get a scooter and make some constant width wheels out of ply for it!

Oops, no, that will not give a smooth ride, because the constant width wheels only function smoothly as rollers, but because their centres go up and down, they are not efficient as wheels. I only realized this when I watched this video: https://www.youtube.com/watch?v=2eUWT9cI23o.

Oops, forgot that!

Hmm, would it be possible to make a hole in the middle that was the same shape, hole sides a constant dustance from the edge on that radius? Might need to be wide and have "cheek plates" either side. Though the wheel profile could be triangular with the "point" at the rim for ease of turning corners . . .

It would be nice to do a software simulation of it. Or perhaps pencil and paper would be easier.

I was rummaging in some drawers today and found a Spirograph! Forgot I had that from a time when I had more had hair.
Title: Re: Fun Science Videos
Post by: Dave on July 16, 2017, 01:26:58 PM
Think I might get a scooter and make some constant width wheels out of ply for it!

Oops, no, that will not give a smooth ride, because the constant width wheels only function smoothly as rollers, but because their centres go up and down, they are not efficient as wheels. I only realized this when I watched this video: https://www.youtube.com/watch?v=2eUWT9cI23o.

Oops, forgot that!

Hmm, would it be possible to make a hole in the middle that was the same shape, hole sides a constant dustance from the edge on that radius? Might need to be wide and have "cheek plates" either side. Though the wheel profile could be triangular with the "point" at the rim for ease of turning corners . . .

It would be nice to do a software simulation of it. Or perhaps pencil and paper would be easier.

I was rummaging in some drawers today and found a Spirograph! Forgot I had that from a time when I had more had hair.
Hmm, cardboard cut-out, pencil point as axle, running along a ruler, if it draws a straight and level line .  . Bit like in the video.

Lucky you on the Spirograph, I'm jealous!
Title: Re: Fun Science Videos
Post by: Arturo on July 16, 2017, 01:46:03 PM
I think if my Dad wasn't so cynical to athiests and maybe a bit more of a critical thinker, he would really have a good time talking to you guys.
Title: Re: Fun Science Videos
Post by: Dave on July 16, 2017, 02:04:28 PM
^
^
Ordered a small Spirograph set - glad to see tgey are still around.

At the moment, after a not very restful night and fighting my way found the supermarket I feel too knackered to even work out how to draw the figure for the trial . . .
Title: Re: Fun Science Videos
Post by: Dave on July 16, 2017, 02:05:52 PM
Arturo, it is a pity when belief reduces life's opportunities.
Title: Re: Fun Science Videos
Post by: hermes2015 on July 16, 2017, 06:01:38 PM
^
^
Ordered a small Spirograph set - glad to see tgey are still around.

At the moment, after a not very restful night and fighting my way found the supermarket I feel too knackered to even work out how to draw the figure for the trial . . .

I found two free Spirograph emulators:

https://www.downloadcrew.com/article/33277-spirograph

http://www.fountainware.com/Funware/SuperSpiro/SuperSpiro.htm

I haven't tested them yet.
Title: Re: Fun Science Videos
Post by: Essie Mae on July 16, 2017, 11:04:29 PM
Just for Hermes.

And Icarus.

And Essie.

And . . .

Well, OK then, the rest of you can watch if you like!   :grin:

I think Numberphile is great.


Well thanks for that Gloucester; why it's the nicest gift so far this year.😀
Title: Re: Fun Science Videos
Post by: joeactor on July 18, 2017, 12:19:53 AM
Cool vid, Gloucester!  Hadn't seen the solids of constant width before...
Title: Re: Fun Science Videos
Post by: Arturo on August 11, 2017, 04:06:23 PM
Speculations on chimpanzees having religions

Title: Re: Fun Science Videos
Post by: Magdalena on August 11, 2017, 08:02:41 PM
Speculations on chimpanzees having religions


Yes, Arturo, that right there is the Hominoidea, the Brunopithecus, to be more exact. Now he's just Father Bruno.

 :P
Title: Re: Fun Science Videos
Post by: Arturo on August 11, 2017, 08:39:59 PM
Speculations on chimpanzees having religions


Yes, Arturo, that right there is the Hominoidea, the Brunopithecus, to be more exact. Now he's just Father Bruno.

 :P

So he isn't really Catholic. He just chucks rocks...
Title: Re: Fun Science Videos
Post by: Dave on August 11, 2017, 08:50:19 PM
Speculations on chimpanzees having religions


Yes, Arturo, that right there is the Hominoidea, the Brunopithecus, to be more exact. Now he's just Father Bruno.

 :P

So he isn't really Catholic. He just chucks rocks...

Naw, he just bangs his rocks together...
Title: Re: Fun Science Videos
Post by: Magdalena on August 11, 2017, 09:44:55 PM
Speculations on chimpanzees having religions


Yes, Arturo, that right there is the Hominoidea, the Brunopithecus, to be more exact. Now he's just Father Bruno.

 :P

So he isn't really Catholic. He just chucks rocks...

Naw, he just bangs his rocks together...

He was a Lutheran, but now he is Catholic. When Father Bruno began banging his rocks together, The Lutheran archbishop, Henricuspithecus, accused him of "impiety." This is the reason he became Catholic, they didn't have any problem with him banging his rocks together.

~Father Bruno has an interesting history.
(http://www.happyatheistforum.com/forum/index.php?action=dlattach;attach=239;type=avatar)

 :grin:
Title: Re: Fun Science Videos
Post by: Arturo on August 11, 2017, 10:22:41 PM
 :lol: :lol: :lol: :lol: :lol: :lol: great story mags!
Title: Re: Fun Science Videos
Post by: Magdalena on August 11, 2017, 10:36:16 PM
:lol: :lol: :lol: :lol: :lol: :lol: great story mags!
:lol:
I don't know why I say the things I say.
Forgive me, Father.  :dominidomini:
I get uncontrollable urges to say things...and I say them.  :-\
Title: Re: Fun Science Videos
Post by: Arturo on August 11, 2017, 11:17:55 PM
:lol: :lol: :lol: :lol: :lol: :lol: great story mags!
:lol:
I don't know why I say the things I say.
Forgive me, Father.  :dominidomini:
I get uncontrollable urges to say things...and I say them.  :-\

Tale of the internet my dear Mags...
Title: Re: Fun Science Videos
Post by: Magdalena on August 12, 2017, 02:08:01 AM
:lol: :lol: :lol: :lol: :lol: :lol: great story mags!
:lol:
I don't know why I say the things I say.
Forgive me, Father.  :dominidomini:
I get uncontrollable urges to say things...and I say them.  :-\

Tale of the internet my dear Mags...

It's not very ladylike, is it?  :notsure:
Ladylike: Appropriate for or typical of a well-bred, decorous woman or girl.

...For those of you who are wondering, yes, I am aware of it.  :fingertap:

I was raised by two men, well, in the eyes of a child--"two 'almost perfect men'."  :tellmemore:

I feel comfortable around men, around all of you, enough to be able to express myself to the fullest.
~Thank you.  :)
Title: Re: Fun Science Videos
Post by: Arturo on August 12, 2017, 02:12:15 AM
I don't know what you mean by "aware of it"
Title: Re: Fun Science Videos
Post by: Magdalena on August 12, 2017, 02:18:35 AM
I don't know what you mean by "aware of it"
Well, I've posted images of "stuff" that maybe I shouldn't have...Icarus said that it was stuff a truck driver would post, and I agree with him, I am aware of it, maybe I simply embrace the truck driver in me.  :grin:
~Not very lady like.  ;)
Title: Re: Fun Science Videos
Post by: Arturo on August 12, 2017, 02:38:45 AM
~Not very lady like.  ;)

Oh well. Nobody hates you for it. In fact I enjoy most things you post because you always seem super happy or supportive but mostly just positive. Just don't stop that :)
Title: Re: Fun Science Videos
Post by: Magdalena on August 12, 2017, 04:11:30 AM
~Not very lady like.  ;)
Oh well. Nobody hates you for it. In fact I enjoy most things you post because you always seem super happy or supportive but mostly just positive. Just don't stop that :)
You're sweet.
 :hug:
Title: Re: Fun Science Videos
Post by: Arturo on August 12, 2017, 04:55:50 AM
(https://vignette3.wikia.nocookie.net/disney/images/d/db/Bashful_Blushing.jpg/revision/latest?cb=20141217042642)
Title: Re: Fun Science Videos
Post by: Magdalena on August 12, 2017, 05:14:49 AM
(https://vignette3.wikia.nocookie.net/disney/images/d/db/Bashful_Blushing.jpg/revision/latest?cb=20141217042642)
(https://media.giphy.com/media/5knJ14rg6473G/giphy.gif)
 ;D
Title: Re: Fun Science Videos
Post by: Icarus on September 16, 2017, 06:04:29 AM
Fun science videos have to include Physics Girl. She has done a whole series of sciency vids.  She is kinda' cute but that is not the point.  Some of the things that she does are informative, peculiar, educational. If you have any kids, they might enjoy this series or.....not.  Try this one.....https://www.youtube.com/watch?v=VAA_dNq_-8c  Have fun
Title: Re: Fun Science Videos
Post by: joeactor on September 16, 2017, 03:01:16 PM
Fun science videos have to include Physics Girl. She has done a whole series of sciency vids.  She is kinda' cute but that is not the point.  Some of the things that she does are informative, peculiar, educational. If you have any kids, they might enjoy this series or.....not.  Try this one.....https://www.youtube.com/watch?v=VAA_dNq_-8c  Have fun

Pretty cool... didn't know you could do that with a GoPro. Gotta dig mine out now!
Title: Re: Fun Science Videos
Post by: joeactor on September 20, 2017, 10:21:04 PM
Quantum polarized weirdness ...
I don't get it!

 
Title: Re: Fun Science Videos
Post by: hermes2015 on September 21, 2017, 06:23:50 AM
Quantum polarized weirdness ...
I don't get it!

 

I don't think many people get it, but perhaps a new Einstein will come along some time and show us what's going on.
Title: Re: Fun Science Videos
Post by: Dave on September 21, 2017, 08:51:38 AM
Quantum polarized weirdness ...
I don't get it!

 

Perhaps the first filter sends some of the light to an alternative universe at its "blocking" angle and the middle filter brings some of that back?
Title: Re: Fun Science Videos
Post by: joeactor on September 21, 2017, 05:20:43 PM
Quantum polarized weirdness ...
I don't get it!

 

Perhaps the first filter sends some of the light to an alternative universe at its "blocking" angle and the middle filter brings some of that back?

I like the way you think... I'm sure this has something to do with the "Observer". If I didn't look at it, it wouldn't be an issue!
Title: Re: Fun Science Videos
Post by: joeactor on September 28, 2017, 09:00:34 PM
Here's a fun little youtube channel with short vids torturing a cartoon character... for SCIENCE!
https://www.youtube.com/channel/UCY3TJECrA90t9YTrxhdjcVw/videos (https://www.youtube.com/channel/UCY3TJECrA90t9YTrxhdjcVw/videos)
Title: Re: Fun Science Videos
Post by: Tank on September 29, 2017, 08:26:48 AM
Here's a fun little youtube channel with short vids torturing a cartoon character... for SCIENCE!
https://www.youtube.com/channel/UCY3TJECrA90t9YTrxhdjcVw/videos (https://www.youtube.com/channel/UCY3TJECrA90t9YTrxhdjcVw/videos)

They look fun.
Title: Re: Fun Science Videos
Post by: Dave on January 02, 2018, 04:51:51 PM
Seems they have been on BBC Radio 4. I must have been in hibernation or something...

I present the Festival of the Spoken Nerd   :cheerleader:

https://youtu.be/Bcr9-93wXng

http://festivalofthespokennerd.com
Title: Re: Fun Science Videos
Post by: Icarus on January 03, 2018, 12:04:53 AM
^ Nominated for the most fun video of the week.  Thanks All.
Title: Re: Fun Science Videos
Post by: Sandra Craft on January 03, 2018, 12:27:08 AM
Quantum polarized weirdness ...
I don't get it!

 

Well, my brain exploded at the ten minute mark.
Title: Re: Fun Science Videos
Post by: Davin on February 06, 2018, 09:22:05 PM
The latest SpaceX Launch. Launched a Tesla into a wide orbit around the sun.


Does this mean we now have a Russell's Tesla?
Title: Re: Fun Science Videos
Post by: Sandra Craft on February 06, 2018, 09:27:00 PM
^^^ I hope at least this one wasn't mistaken for a UFO like the LA one was.
Title: Re: Fun Science Videos
Post by: joeactor on February 06, 2018, 11:15:32 PM
Gotta give Musk points for style... Watching the live feed of the car in space.

Title: Re: Fun Science Videos
Post by: Davin on February 07, 2018, 03:24:05 PM
I liked the "Don't Panic" on the car's display.
Title: Re: Fun Science Videos
Post by: Tank on February 07, 2018, 06:25:47 PM
I liked the "Don't Panic" on the car's display.
Same here.
Title: Re: Fun Science Videos
Post by: Icarus on February 07, 2018, 08:14:10 PM
^^Someone had a keen sense of humor..
Title: Re: Fun Science Videos
Post by: Dave on April 09, 2018, 01:10:31 PM
https://youtu.be/2L0ZHxcoWhM

Title: Re: Fun Science Videos
Post by: Tank on April 09, 2018, 01:22:25 PM
https://youtu.be/2L0ZHxcoWhM

Some things to get to entertain my grandsons in the future.
Title: Re: Fun Science Videos
Post by: Dave on April 09, 2018, 02:05:02 PM
https://youtu.be/2L0ZHxcoWhM

Some things to get to entertain my grandsons in the future.
Wondering if it is possible to make a "bouncer".

1. Stiffen the copper wire* before turning it into a spring making it slightly longer than the battery plus magnets with the "top" end bent across the diameter to make contact with the battery's positive end. To stiffen the wire first clamp one end somehow (in a vice, under a screw head), winding the wire once round a screwdriver as near to the clamp as you can get then (wearing work gloves) pull a bit on the free end with pliers and then pull the screwdiver toward you so the wire has to "slide round it", do not let the screwdriver rotate. This work hardens and "stretches" the wire on one side encouraging it to coil. Do this twice for extra hardness/coiliness.

2. Assemble a 2p coin (copper allow coated steel) or plated steel "penny" washer, mangets and battery positive up. The coin/washer forms the negative contact for the coil.

3. Hot melt glue or Bluetack magnets to end of coil with bend, this acts as a coul compression load. However, if the coil magnets are in oposition to the bottom ones, N to N say, they may help the action by giving added "lift", but the coil may end up floating. If the magnets attract it may not bounce or the coil may need to be adjusted longer. The strength and weight of the coil magnets will also enter the equation.

4. Hold coil, its nagnets up, over battery and drop.

5. Adjust the coil to ensure that, as it compresses, the bent end touches the positive pimple.

*Suitable wire (in the UK anyway) can be got from mains house wiring cable. I'm going for 1.5mm diameter.

From the formula F=BIL the force on the coil will equal the product of the magnetic field strength, the length of wire in the field and the current through that wire. One of the few formulas I remember from my City and Guilds course in 1973! So, the more turns the merrier, but leave room for a bit of compression!
Title: Re: Fun Science Videos
Post by: joeactor on April 09, 2018, 02:47:55 PM
Cool vid, Dave!
Title: Re: Fun Science Videos
Post by: hermes2015 on April 09, 2018, 03:22:04 PM
This one is old, but still good. It's by my heroes Ray and Charles Eames, who, apart from designing some of the best furniture of the last century, were also brilliant communicators.

Title: Re: Fun Science Videos
Post by: hermes2015 on April 09, 2018, 03:25:06 PM
https://youtu.be/2L0ZHxcoWhM

I want to try some of those.
Title: Re: Fun Science Videos
Post by: Dave on April 09, 2018, 03:57:52 PM
This one is old, but still good. It's by my heroes Ray and Charles Eames, who, apart from designing some of the best furniture of the last century, were also brilliant communicators.


Just shows we are a bunch of specks forming a speck that lives on a speck in a bigger bunch of specks . . . . . . .
Title: Re: Fun Science Videos
Post by: joeactor on April 10, 2018, 09:58:01 PM
This one is old, but still good. It's by my heroes Ray and Charles Eames, who, apart from designing some of the best furniture of the last century, were also brilliant communicators.


... a fave of mine...
Title: Re: Fun Science Videos
Post by: Papasito Bruno on April 11, 2018, 07:24:34 PM
That's a kool video Joe...reminds me of this one.

Title: Re: Fun Science Videos
Post by: joeactor on April 11, 2018, 08:20:41 PM
Very nice, PB...
Title: Re: Fun Science Videos
Post by: Icarus on April 12, 2018, 06:48:31 AM
^^That makes our pale blue dot rather insignificant, doesn't it?
Title: Re: Fun Science Videos
Post by: xSilverPhinx on April 13, 2018, 10:22:37 PM
Title: Re: Fun Science Videos
Post by: joeactor on April 13, 2018, 10:26:39 PM
I want to be a rat tickler for my next job.
Title: Re: Fun Science Videos
Post by: xSilverPhinx on April 13, 2018, 10:28:14 PM
I want to be a rat tickler for my next job.

:grin:
Title: Re: Fun Science Videos
Post by: Dave on April 14, 2018, 06:46:17 AM
Remember this from way back.

They call it tickling but it looks more like the sort of thing I do to dogs and cats, rub with my finger tips just in front of the base of their tail. Two theories, one it is a place they cannot scratch easily themselves, so appreciate another providing a service - two (especially in females) it is an "erogenous zone", a place that gets stimulated during intercourse, cats, male and female, with often raise their tsil vertically when uou do this (though the female lays her tail to one side when she "offers" herself). In cats it is also the area where one of their scent glands resides, the "This is my property" one that they rub on chair stringers etc as they pass under them. Forehead and cheek glands are reserved for family (cat and human) and other especially loved items.

I have seen that latter offered as an explanation for why cats and dogs often like the area between their front legs, or their chest, rubbed - in the males this is also a mutual contact area during dominance behaviour and intercourse.
Title: Re: Fun Science Videos
Post by: xSilverPhinx on April 14, 2018, 03:36:25 PM
Remember this from way back.

They call it tickling but it looks more like the sort of thing I do to dogs and cats, rub with my finger tips just in front of the base of their tail. Two theories, one it is a place they cannot scratch easily themselves, so appreciate another providing a service - two (especially in females) it is an "erogenous zone", a place that gets stimulated during intercourse, cats, male and female, with often raise their tsil vertically when uou do this (though the female lays her tail to one side when she "offers" herself). In cats it is also the area where one of their scent glands resides, the "This is my property" one that they rub on chair stringers etc as they pass under them. Forehead and cheek glands are reserved for family (cat and human) and other especially loved items.

I have seen that latter offered as an explanation for why cats and dogs often like the area between their front legs, or their chest, rubbed - in the males this is also a mutual contact area during dominance behaviour and intercourse.

That's interesting, didn't know that.

Tickling is a mystery to me. They say it's probably an associated result of sensation caused by two types of different receptors: touch (pressure) and pain. I don't know if this is true, but it really is an odd sensation if you think about it. Why feel ticklish in the first place and why scratch the spot (cause a little pain) to "override" the feeling? Why does too much tickling become uncomfortable or even painful? :notsure:   
Title: Re: Fun Science Videos
Post by: Dave on April 14, 2018, 05:06:53 PM
Remember this from way back.

They call it tickling but it looks more like the sort of thing I do to dogs and cats, rub with my finger tips just in front of the base of their tail. Two theories, one it is a place they cannot scratch easily themselves, so appreciate another providing a service - two (especially in females) it is an "erogenous zone", a place that gets stimulated during intercourse, cats, male and female, with often raise their tsil vertically when uou do this (though the female lays her tail to one side when she "offers" herself). In cats it is also the area where one of their scent glands resides, the "This is my property" one that they rub on chair stringers etc as they pass under them. Forehead and cheek glands are reserved for family (cat and human) and other especially loved items.

I have seen that latter offered as an explanation for why cats and dogs often like the area between their front legs, or their chest, rubbed - in the males this is also a mutual contact area during dominance behaviour and intercourse.

That's interesting, didn't know that.

Tickling is a mystery to me. They say it's probably an associated result of sensation caused by two types of different receptors: touch (pressure) and pain. I don't know if this is true, but it really is an odd sensation if you think about it. Why feel ticklish in the first place and why scratch the spot (cause a little pain) to "override" the feeling? Why does too much tickling become uncomfortable or even painful? :notsure:

Though a tickle and an itch are different things have you ever "slap-scrathed" a sudden itch? This is possibly an ancient reaction to splatt the blood sucker that has dug into you then scratch it off the skin. Scratching may also help squeeze out any toxins. Since tickling is often a part of erotic play do we react, even as small children, to such things in a happy-squirmy was if we trust the tickler? Tickling from a non-trusted person is offensive.

When talking about pain to a consultant we came to the agreement that an itch was a "grade 1" pain and that my heart attack was "grade10" for me. Later I found "grade 12"  when I had my fistula!
Title: Re: Fun Science Videos
Post by: Dave on July 11, 2018, 10:03:30 AM
Not a video - though it will be on the BBC TV iPlayer . . .

Special 100th edition of The Infinite Monkey Cage.

https://www.bbc.co.uk/programmes/b0b92x8p
Title: Re: Fun Science Videos
Post by: joeactor on July 12, 2018, 08:16:24 PM
Not a video - though it will be on the BBC TV iPlayer . . .

Special 100th edition of The Infinite Monkey Cage.

https://www.bbc.co.uk/programmes/b0b92x8p

Listening now... Funny.

Did you notice the volume goes to 11?
Title: Re: Fun Science Videos
Post by: Dave on July 12, 2018, 08:32:16 PM
Not a video - though it will be on the BBC TV iPlayer . . .

Special 100th edition of The Infinite Monkey Cage.

https://www.bbc.co.uk/programmes/b0b92x8p

Listening now... Funny.

Did you notice the volume goes to 11?

I heard it on-air.
Title: Re: Fun Science Videos
Post by: Essie Mae on July 22, 2018, 03:28:47 PM
Not a video - though it will be on the BBC TV iPlayer . . .

Special 100th edition of The Infinite Monkey Cage.

https://www.bbc.co.uk/programmes/b0b92x8p

Listening now... Funny.

Did you notice the volume goes to 11?

I heard it on-air.
Thanks for reminding me of that Dave. I’ll binge listen when I get home.