Most dust particles in your house are made from dead skin!
67
The Earth's atmosphere weighs about 5.5 quadrillion tons.
108
No matter how cold it gets, gasoline will not freeze.
107
Nylon is made from coal and petroleum.
42
Hot water can freeze faster than cold water.
181
In Arizona, a solar wind energy tower has been proposed that would generate as much energy as the Hoover Dam.
5
A single cup of gasoline, when ignited, has the same explosive power as five sticks of dynamite.
57
During photosynthesis, plants emit light humans can’t see, but NASA can see that light from space - and they've even made maps of it!
21