In zero gravity, a candle's flame is round and blue.
16
The most expensive material on the planet is antimatter - worth $62.5 trillion per gram.
18
The storage capacity of human brain exceeds 4 Terrabytes.
140
When you walk down a steep hill, the pressure on your knees is equal to three times your body weight.
199
The force of a suction cup is calculated using F=AP.
15
Indoor pollution is 10 times more toxic than outdoor pollution.
62
In Arizona, a solar wind energy tower has been proposed that would generate as much energy as the Hoover Dam.
5
