The bark of an older redwood tree is fireproof.
65
A 'jiffy' is an actual unit of time for 1/100th of a second!
66
Every day, plants convert sunlight into energy equivalent to six times the entire power consumption of human civilization.
9
Scientists are learning from the 1700-year-old Lycurgus Cup, which changes colour thanks to nano particles.
0
Sound at the right vibration can bore holes through a solid object.
134
Forensic scientists can determine a person's sex, age, and race by examining a single strand of hair.
101
The earth is approx. 6,588,000,000,000,000,000 tons.
175
Diamonds can be shattered with a hammer.
-104