Diamonds can be shattered with a hammer.
-104
Sound travels about 4 times faster in water than in air.
408
According to studies, men change their minds two to three times more often than women.
72
According to scientists, the color of the cup that we're drinking from can alter our perception of the actual taste of the drink.
12
Iron weighs more after it rusts.
68
The smell of freshly cut grass is actually a plant distress call.
31
Brass doorknobs automatically disinfect themselves in about 8 hours.
18