Oxygen, carbon, hydrogen and nitrogen make up 90% of the human body.
118
Liquid TIDE laundry detergent glows under a blacklight.
96
It takes a photon 170,000 years to travel from the core of the Sun to the surface, but only 8 minutes to travel the rest of the way to Earth.
6
Airports that are at higher altitudes require a longer airstrip due to lower air density.
39
Kissing actually has the biological purpose of passing on biological information and chemical signals to assess mating possibilities and status.
9
Your brain is 80% water.
525
Iron weighs more after it rusts.
68