The only letter not appearing on the Periodic Table is the letter "J".
180
According to studies, men change their minds two to three times more often than women.
72
Diamonds can be shattered with a hammer.
-104
The banana plant cannot reproduce itself. It can be propagated only by the hand of man.
155
Oak trees produce 2,200 acorns in a season, but each acorn only has a 1 in 10,000 chance of becoming an oak tree.
304
At 15 years old, Jack Andraka invented a method of diagnosing pancreatic cancer, thus helping to save the lives of millions of people around the world. It is 168 times faster, 26,000 times cheaper, 400 times more sensitive, and has a 99% success rate.
15
During photosynthesis, plants emit light humans can’t see, but NASA can see that light from space - and they've even made maps of it!
21
One barrel of petroleum holds 42 gallons.
20