The hair of an adult man or woman can stretch 25 percent of its length without breaking.
116
Pumice is the only rock that floats on water.
14
Because heat expands the metal, the Eiffel Tower always leans away from the sun.
79
Billions of neutrinos pass unnoticed through your body every second.
6
Scientists have developed a microparticle filled with oxygen that can be injected into the blood stream, enabling us to live without breathing.
21
According to studies, men change their minds two to three times more often than women.
72
During photosynthesis, plants emit light humans can’t see, but NASA can see that light from space - and they've even made maps of it!
21