In zero gravity, a candle's flame is round and blue.
16
There are more atoms in one teaspoon of water than there are teaspoons of water in the Atlantic Ocean.
13
The force of a suction cup is calculated using F=AP.
15
Stannous fluoride, which is the cavity fighter found in toothpaste is made from recycled tin.
65
Out of all the senses, smell is most closely linked to memory.
146
In 1999, Harvard physicist Lene Hau was able to slow down light to 17 meters per second and in 2001, was able to stop light completely.
39
Approximately 70 percent of the earth is covered by water. Only 1 percent of this water is drinkable.
65
The average temperature at 40,000 feet above sea level is -60 F.
56