Optical illusions occur when what the eyes see conflicts with what the brain expects.
75
Most liquid laundry detergents are alive with living organisms that help to break down stains!
88
A single speck of dust is half way in size between a subatomic particle and the Earth.
15
0.3% of solar energy from the Sahara is enough to power the whole of Europe.
310
In 1999, Harvard physicist Lene Hau was able to slow down light to 17 meters per second and in 2001, was able to stop light completely.
39
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
The only letter not appearing on the Periodic Table is the letter "J".
180
One ragweed plant can release as many as one billion grains of pollen!
51