Vote
86
15
report video
Mythbusters - Thermite vs Ice
Posted 14 years ago by frantolo in category: science   Comments (1)

Vote
97
26
report video
Alka-Seltzer added to spherical water drop in space
Posted 14 years ago by monster2 in category: science   Comments (0)

Vote
91
21
report video
Hypothetical Perpetual Motion Machines
Posted 11 years ago by boyt in category: science   Comments (0)

Vote
76
7
report video
How an atomic clocks works, and its use in the global positioning system (GPS)
Posted 11 years ago by Janko in category: science   Comments (0)

Vote
70
1
report video
Carl Sagan explains how Eratostenes knew the earth was curved
Eratostenes was a Greek mathematician living 2200 years ago.
Posted 7 years ago by boyt in category: science   Comments (0)