One 75-watt bulb gives more light than three 25-watt bulbs.
57
Galalith is a type of plastic that can be made from milk. It is odourless, insoluble in water, biodegradable, anti-allergenic, antistatic, and virtually non-flammable.
1
When you walk down a steep hill, the pressure on your knees is equal to three times your body weight.
199
Some toothpastes and deodorants contain the same chemicals found in antifreeze.
38
Iron weighs more after it rusts.
16
The Earth's atmosphere weighs about 5.5 quadrillion tons.
108
The most expensive material on the planet is antimatter - worth $62.5 trillion per gram.
18
At room temperature, the average air molecule travels at the speed of a rifle bullet.
55