A single cup of gasoline, when ignited, has the same explosive power as five sticks of dynamite.
57
It takes a photon 170,000 years to travel from the core of the Sun to the surface, but only 8 minutes to travel the rest of the way to Earth.
6
Diamonds can be shattered with a hammer.
-104
Your brain is 80% water.
525
The bark of an older redwood tree is fireproof.
65
Hot water can freeze faster than cold water.
181
Scientists aren't sure what color dinosaurs were.
312
Sound travels about 4 times faster in water than in air.
408