Aluminum used to be more valuable than gold!
84
When you walk down a steep hill, the pressure on your knees is equal to three times your body weight.
199
For a high school science fair project, 17-year-old Michio Kaku built a particle accelerator in his parent's garage that was able to generate a magnetic field 20,000 times greater than the Earth's and produce collisions powerful enough to create antimatter.
34
Columbia University has developed an artificial tree that passively soaks up carbon dioxide from the air using "leaves" that are 1,000 times more efficient than true leaves that use photosynthesis.
15
The only letter not appearing on the Periodic Table is the letter "J".
180
Each day is longer than the previous on by 0.00000002 seconds which is 13 seconds each century!
116
Oxygen, carbon, hydrogen and nitrogen make up 90% of the human body.
118
A single speck of dust is half way in size between a subatomic particle and the Earth.
15