Pure water (H2O) does not conduct electricity on its own.
46
The Earth's atmosphere weighs about 5.5 quadrillion tons.
108
Diamonds can be shattered with a hammer.
-104
MIT has developed a camera that captures the speed of light at a trillion frames per second.
20
Indoor pollution is 10 times more toxic than outdoor pollution.
62
Sound travels about 4 times faster in water than in air.
408