If you are locked in a completely sealed room, you will die of carbon dioxide poisoning first before you will die of oxygen deprivation.
117
A 'jiffy' is an actual unit of time for 1/100th of a second!
66
A ball of glass will bounce higher than a ball made of rubber.
73
Iron weighs more after it rusts.
68
One barrel of petroleum holds 42 gallons.
20
A cesium atom in an atomic clock beats over nine billion times a second.
43
At room temperature, the average air molecule travels at the speed of a rifle bullet.
55
Indoor pollution is 10 times more toxic than outdoor pollution.
62