Scientists concluded that the chicken came first, not the egg, because the protein which makes the egg shells is only produced by hens.
11
Iron weighs more after it rusts.
68
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
The most expensive material on the planet is antimatter - worth $62.5 trillion per gram.
18
Most dust particles in your house come from dead skin.
48
Scientists are learning from the 1700-year-old Lycurgus Cup, which changes colour thanks to nano particles.
0
Nylon is made from coal and petroleum.
42
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