The most expensive material on the planet is antimatter - worth $62.5 trillion per gram.
18
In zero gravity, a candle's flame is round and blue.
16
Research indicates that plants grow healthier when they are stroked.
173
Diamonds can be shattered with a hammer.
-104
Most dust particles in your house come from dead skin.
48
One ragweed plant can release as many as one billion grains of pollen!
51
Scientists are now able to grow 'beating' heart tissue in a lab!
162