Brass doorknobs automatically disinfect themselves in about 8 hours.
18
Most dust particles in your house are made from dead skin!
67
One gallon of used motor oil can ruin approximately one million gallons of fresh water!
71
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
Oak trees produce 2,200 acorns in a season, but each acorn only has a 1 in 10,000 chance of becoming an oak tree.
304
Airports that are at higher altitudes require a longer airstrip due to lower air density.
39
Nylon is made from coal and petroleum.
42
The use of emoticons affects our corresponding brain areas and can actually trigger emotions.
21