Kissing actually has the biological purpose of passing on biological information and chemical signals to assess mating possibilities and status.
9
Some toothpastes and deodorants contain the same chemicals found in antifreeze.
38
At room temperature, the average air molecule travels at the speed of a rifle bullet.
55
Sound travels fifteen times faster through steel than through air.
134
Sound at the right vibration can bore holes through a solid object.
134
Your brain is 80% water.
525
Stannous fluoride, which is the cavity fighter found in toothpaste is made from recycled tin.
65