At room temperature, the average air molecule travels at the speed of a rifle bullet.
55
According to studies, men change their minds two to three times more often than women.
72
Cold water weighs more than hot water.
93
Scientists are now able to grow 'beating' heart tissue in a lab!
162
Sound travels fifteen times faster through steel than through air.
134
The bark of an older redwood tree is fireproof.
65
A cesium atom in an atomic clock beats over nine billion times a second.
43