Each day, up to 150 species of life become extinct.
-23
One 75-watt bulb gives more light than three 25-watt bulbs.
57
The earth is approx. 6,588,000,000,000,000,000 tons.
175
The most expensive material on the planet is antimatter - worth $62.5 trillion per gram.
18
Iron weighs more after it rusts.
16
Airports that are at higher altitudes require a longer airstrip due to lower air density.
39
Brass doorknobs automatically disinfect themselves in about 8 hours.
18