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

Wilhelm Rontgen won the first Nobel Prize for physics for discovering X-rays in 1895.

One in every 2000 babies is born with a tooth.

Quasars emit more energy than 100 giant galaxies.

The longest glacier in Antarctica, the Almbert glacier, is 250 miles long and 40 miles wide.

Giraffes often sleep for only 20 minutes in any 24 hours. They may sleep up to 2 hours (in spurts - not all at once), but this is rare. They never lie down.

Alfred Nobel invented dynamite in 1866.

The largest ever hailstone weighed over 1kg and fell in Bangladesh in 1986.