Aluminum used to be more valuable than gold!
84
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
The bark of an older redwood tree is fireproof.
65
Iron weighs more after it rusts.
16
Neanderthal man had a brain capacity 100cc larger than modern man's.
50
The earth is approx. 6,588,000,000,000,000,000 tons.
175
Approximately 70 percent of the earth is covered by water. Only 1 percent of this water is drinkable.
65