"... it can take us awhile to fully grasp the downsides and side effects of new discoveries." I'll say! YouTube: SciShow explores the harrowing tale of the so-called Radium Girls, factory workers who... continue reading
posted by PlayhousePals 9 years 3 weeks ago • 167 views • 4:39Videos (23) | Sift Talk (0) | Blogs (0) | Comments (994) |
"View full lesson: http://ed.ted.com/lessons/how-many-ways-can-you-arrange-a-deck-of-cards-yannay-khaikin . One deck. Fifty-two cards. How many arrangements? Let's put it this way: Any time you pick... continue reading
posted by ant 1 decade 1 month ago • 25 views • 3:42This clip from the BBC’s Edwardian Farm documentary series shows how rope was made back before industrial factories spun threads together. It involved pulling and suspending fibers across long distances... continue reading
posted by Kulpims T'dna (kulpims) 1 decade 1 year 2 months ago • 1,236 views • 2:50