Indoor pollution is 10 times more toxic than outdoor pollution.
62
Marie Curie, the Nobel prize winning scientist who discovered radium, died of radiation poisoning.
57
Airports that are at higher altitudes require a longer airstrip due to lower air density.
39
Every day, plants convert sunlight into energy equivalent to six times the entire power consumption of human civilization.
9
In zero gravity, a candle's flame is round and blue.
16
Most dust particles in your house come from dead skin.
48
The sun is 330,330 times larger than the earth.
75
The earth is approx. 6,588,000,000,000,000,000 tons.
175