Most dust particles in your house are made from dead skin!
67
Airports that are at higher altitudes require a longer airstrip due to lower air density.
39
Sound at the right vibration can bore holes through a solid object.
134
Iron weighs more after it rusts.
16
Approximately 70 percent of the earth is covered by water. Only 1 percent of this water is drinkable.
65
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