The force of a suction cup is calculated using F=AP.
15
Marie Curie, the Nobel prize winning scientist who discovered radium, died of radiation poisoning.
57
Because heat expands the metal, the Eiffel Tower always leans away from the sun.
79
Each day, up to 150 species of life become extinct.
-23
Airports that are at higher altitudes require a longer airstrip due to lower air density.
39
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
The only letter not appearing on the Periodic Table is the letter "J".
180
Most dust particles in your house are made from dead skin!
67