There are more atoms in one teaspoon of water than there are teaspoons of water in the Atlantic Ocean.
13
Balsa wood is classified as a hard wood!
41
In zero gravity, a candle's flame is round and blue.
16
Scientists have developed a microparticle filled with oxygen that can be injected into the blood stream, enabling us to live without breathing.
21
Optical illusions occur when what the eyes see conflicts with what the brain expects.
75
One barrel of petroleum holds 42 gallons.
20
Out of all the senses, smell is most closely linked to memory.
146