"If you answered yes to 7 or more questions, you are a human." [the jury is still out]
posted by PlayhousePals 1 decade 1 year 2 months 3 weeks ago • 718 views • 2:52Videos (87) | Sift Talk (0) | Blogs (0) | Comments (1000) |
YouTube Description: Light is so common that we rarely think about what it really is. But just over two hundred years ago, a groundbreaking experiment answered the question that had occupied physicists... continue reading
posted by aaronfr 1 decade 1 year 3 months 1 week ago • 1,437 views • 7:40When evolution calls, Katydid answers.
posted by PlayhousePals 1 decade 1 year 4 months ago • 1,835 views • 2:27Videosifters are all smart of course, and that’s okay… From YT: There are now more than 7 billion human beings on Earth, and that got me wondering: How successful are we compared to other species?... continue reading
posted by Trancecoach 1 decade 1 year 4 months ago • 39 views • 4:40The Planck time (10^-43 seconds) is discussed in this answer to a viewer question.
posted by Skeeve 1 decade 3 years 2 months ago • 3,283 views • 2:26Sixty Symbols takes on the question of if electrons would move around the atom at absolute zero. The answer surprised me a bit, but makes sense and is sort of a slap yourself in the head and of course... continue reading
posted by RFlagg 1 decade 3 years 6 months 4 weeks ago • 4,670 viewsSixty Symbols explains the differences between Special and General Relativity and answers if they could change the value of any constant what would it be and why.
posted by RFlagg 1 decade 3 years 7 months 2 weeks ago • 865 views