A cesium atom in an atomic clock beats over nine billion times a second.
43
The average temperature at 40,000 feet above sea level is -60 F.
56
Balsa wood is classified as a hard wood!
41
Rafflesia Arnoldii is the largest flower in the world and can grow as big as an umbrella.
42
Kissing actually has the biological purpose of passing on biological information and chemical signals to assess mating possibilities and status.
9
Because heat expands the metal, the Eiffel Tower always leans away from the sun.
79
Marie Curie, the Nobel prize winning scientist who discovered radium, died of radiation poisoning.
57