The bark of an older redwood tree is fireproof.
65
Only 12,000 years ago there was a species closely related to modern humans called Homo floresiensis that had been living on an Indonesian Island. They used fire and rather advanced tools, yet were only about 3 feet tall and weighed around 25kg.
15
A 'jiffy' is an actual unit of time for 1/100th of a second!
66
The left ear is more responsive to words of love and emotion whispered into it than the right.
40
If the chemical sodium is dropped into water it will immediately and violently explode.
67
At room temperature, the average air molecule travels at the speed of a rifle bullet.
55
The inventor of the Super Soaker squirt gun was a NASA Scientist who also helped develop the Stealth Bomber and the Galileo mission to Jupiter.
7