The hair of an adult man or woman can stretch 25 percent of its length without breaking.
116
Optical illusions occur when what the eyes see conflicts with what the brain expects.
75
Approximately 70 percent of the earth is covered by water. Only 1 percent of this water is drinkable.
65
Sound travels fifteen times faster through steel than through air.
134
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
The only letter not appearing on the Periodic Table is the letter "J".
180
No matter how cold it gets, gasoline will not freeze.
107