Kissing actually has the biological purpose of passing on biological information and chemical signals to assess mating possibilities and status.
9
Billions of neutrinos pass unnoticed through your body every second.
6
If you blowtorch Pepto-Bismol, you would get a hunk of metal.
114
A single speck of dust is half way in size between a subatomic particle and the Earth.
15
Indoor pollution is 10 times more toxic than outdoor pollution.
62
MIT has developed a camera that captures the speed of light at a trillion frames per second.
20
Brass doorknobs automatically disinfect themselves in about 8 hours.
18