The average temperature at 40,000 feet above sea level is -60 F.
56
One ragweed plant can release as many as one billion grains of pollen!
51
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
Pure water (H2O) does not conduct electricity on its own.
46
Forensic scientists can determine a person's sex, age, and race by examining a single strand of hair.
101
German chemists made a replica of a trophy the size of one molecule.
68
A cesium atom in an atomic clock beats over nine billion times a second.
43