# Facts - Did you know?

1) There are more living organisms on the skin of each human than there are humans on the surface of the earth.

2) One million, million, million, million, millionth of a second after the Big Bang the Universe was the size of a …pea.

3) Around a million, billion neutrinos from the Sun will pass through your body while you read this sentence.

4) The Earth spins at 1,000 mph but it travels through space at an incredible 67,000 mph.

5) The dinosaurs became extinct before the Rockies or the Alps were formed.

6) The speed of light is generally rounded down to 186,000 miles per second. In exact terms it is 299,792,458 m/s (metres per second – that is equal to 186,287.49 miles per second).

7) In the 14th century the Black Death killed 75,000,000 people. It was carried by fleas on the black rat.

8) Alfred Nobel invented dynamite in 1866.

9) Wounds infested with maggots heal quickly and without spread of gangrene or other infection.

10) A dog's sense of smell is 1,000 times more sensitive than a humans.