1
Your brain is 80% water.
525
2
Sound travels about 4 times faster in water than in air.
408
3
Scientists aren't sure what color dinosaurs were.
312
4
0.3% of solar energy from the Sahara is enough to power the whole of Europe.
310
5
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
6
When you walk down a steep hill, the pressure on your knees is equal to three times your body weight.
199
7
Hot water can freeze faster than cold water.
182
8
The only letter not appearing on the Periodic Table is the letter "J".
180
9
The earth is approx. 6,588,000,000,000,000,000 tons.
175
10
Research indicates that plants grow healthier when they are stroked.
173
11
Scientists are now able to grow 'beating' heart tissue in a lab!
162
12
The banana plant cannot reproduce itself. It can be propagated only by the hand of man.
155
14
Out of all the senses, smell is most closely linked to memory.
146
15
The storage capacity of human brain exceeds 4 Terrabytes.
140
16
Sound at the right vibration can bore holes through a solid object.
134
17
Sound travels fifteen times faster through steel than through air.
134
18
Oxygen, carbon, hydrogen and nitrogen make up 90% of the human body.
118
19
If you are locked in a completely sealed room, you will die of carbon dioxide poisoning first before you will die of oxygen deprivation.
117
20
Each day is longer than the previous on by 0.00000002 seconds which is 13 seconds each century!
116