A ball of glass will bounce higher than a ball made of rubber.
73
Stannous fluoride, which is the cavity fighter found in toothpaste is made from recycled tin.
65
Sound travels about 4 times faster in water than in air.
408
Iron weighs more after it rusts.
68
Columbia University has developed an artificial tree that passively soaks up carbon dioxide from the air using "leaves" that are 1,000 times more efficient than true leaves that use photosynthesis.
15
According to studies, men change their minds two to three times more often than women.
72
Scientists aren't sure what color dinosaurs were.
312
Diamonds can be shattered with a hammer.
-104