YouTube description: The Galton Board is a 7.5” by 4.5” desktop probability machine. This device brings to life the statistical concept of normal distribution. As you rotate the Galton Board... continue reading

posted by Aard Vark (oritteropo) 6 years 11 months ago • 811 views • 3:23

YT: Daniel Kish has been blind since he was 13 months old, but has learned to "see" using a form of echolocation. He clicks his tongue and sends out flashes of sound that bounce off surfaces in the environment... continue reading

posted by Zawash 1 decade ago • 208 views • 13:08

"What happens when you drop a perfectly balanced stack of balls? And how is the result like a supernova? The classic momentum transfer demonstration, at the next level..." From http://boingboing.net/2015/02/24/how-to-... continue reading

posted by ant 1 decade 1 month 1 week ago • 1,125 views • 3:34

YT: This test works equally well for AA, AAA, C, D and 9 Volt alkaline batteries. It is our understanding that the following chemical reactions occur and helps to explain our observations. A non-rechargeable... continue reading

posted by Zawash 1 decade 6 months 4 weeks ago • 589 views • 5:32

Lesson of the day - this is how real breasts bounce.

posted by digitalpimp 1 decade 1 year 5 months 2 weeks ago • 6,192 views • 50 secs