The hair of an adult man or woman can stretch 25 percent of its length without breaking.
116
The average home creates more pollution than does the average car.
33
Marie Curie, the Nobel prize winning scientist who discovered radium, died of radiation poisoning.
57
Oxygen, carbon, hydrogen and nitrogen make up 90% of the human body.
118
Scientists have revived a flowering plant from a fruit stored away in permafrost by Arctic ground squirrel 32,000 years ago.
16
Iron weighs more after it rusts.
16
The most expensive material on the planet is antimatter - worth $62.5 trillion per gram.
18
It takes a photon 170,000 years to travel from the core of the Sun to the surface, but only 8 minutes to travel the rest of the way to Earth.
6