Blue eyes are a genetic mutation. Before the mutation occured, all humans had brown eyes.
89
Pumice is the only rock that floats on water.
14
Pure water (H2O) does not conduct electricity on its own.
46
Dr.Jonas Salk, the man who came up with the cure for polio, didn’t patent the drug. This made the drug more affordable to the general public, and he lost out an an estimated $7 billion dollars for himself.
41
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
4.5 pounds of sunlight strike the Earth each day.
27
Because heat expands the metal, the Eiffel Tower always leans away from the sun.
79
Every day, plants convert sunlight into energy equivalent to six times the entire power consumption of human civilization.
9