Kissing actually has the biological purpose of passing on biological information and chemical signals to assess mating possibilities and status.
9
Most dust particles in your house are made from dead skin!
67
Scientists concluded that the chicken came first, not the egg, because the protein which makes the egg shells is only produced by hens.
11
Sound at the right vibration can bore holes through a solid object.
134
One 75-watt bulb gives more light than three 25-watt bulbs.
57
Out of all the senses, smell is most closely linked to memory.
146
The force of a suction cup is calculated using F=AP.
15
One barrel of petroleum holds 42 gallons.
20