This topic might have fit into the workshop thread, but it is also of interest to science buffs.
The woman who does the presentation is suffering from muscular anxiety so try to ignore all her contortions. The content is historically interesting as well as informative.
Tell you what, I find this quite shocking.
I found it very positive and down to earth myself.
Being a fully grounded person myself, I shall avoid any shocking puns here. Nevertheless I found the video to be enlightening and fully charged with information!