A cubic yard of air weighs about 2 pounds at sea level.
31
Diamonds can be shattered with a hammer.
-104
Each day is longer than the previous on by 0.00000002 seconds which is 13 seconds each century!
116
Scientists in Germany have developed a candy that doesn't cause cavities.
11
Aluminum used to be more valuable than gold!
84
Scientists are learning from the 1700-year-old Lycurgus Cup, which changes colour thanks to nano particles.
0