A cubic yard of air weighs about 2 pounds at sea level.
31
Aluminum used to be more valuable than gold!
84
Marie Curie, the Nobel prize winning scientist who discovered radium, died of radiation poisoning.
57
In the 60s, a scientist gave LSD to dolphins in an attempt to teach them English.
17
Cold water weighs more than hot water.
93
If the chemical sodium is dropped into water it will immediately and violently explode.
67
The bark of an older redwood tree is fireproof.
65
Blue eyes are a genetic mutation. Before the mutation occured, all humans had brown eyes.
89