In zero gravity, a candle's flame is round and blue.
16
Out of all the senses, smell is most closely linked to memory.
146
Cellophane is not made of plastic. It is made from a plant fiber, cellulose, which has been shredded and aged.
44
Indoor pollution is 10 times more toxic than outdoor pollution.
62
If you blowtorch Pepto-Bismol, you would get a hunk of metal.
114
A 'jiffy' is an actual unit of time for 1/100th of a second!
66
At room temperature, the average air molecule travels at the speed of a rifle bullet.
55
Most dust particles in your house come from dead skin.
48