The earth is approx. 6,588,000,000,000,000,000 tons.
175
Balsa wood is classified as a hard wood!
41
In Arizona, a solar wind energy tower has been proposed that would generate as much energy as the Hoover Dam.
5
Neanderthal man had a brain capacity 100cc larger than modern man's.
50
Oxygen, carbon, hydrogen and nitrogen make up 90% of the human body.
118
Aluminum used to be more valuable than gold!
84
The left ear is more responsive to words of love and emotion whispered into it than the right.
40