Billions of neutrinos pass unnoticed through your body every second.
6
In zero gravity, a candle's flame is round and blue.
16
The brain case [of Neanderthals] on the average was more than 13 percent larger than that of the average of modern man
61
Most dust particles in your house are made from dead skin!
67
Approximately 70 percent of the earth is covered by water. Only 1 percent of this water is drinkable.
65
If the chemical sodium is dropped into water it will immediately and violently explode.
67
Sound travels about 4 times faster in water than in air.
408