If every star in the Milky Way was a grain of salt they would fill an Olympic sized swimming pool.

Each rubber molecule is made of 65,000 individual atoms.

Without its lining of mucus your stomach would digest itself.

Somewhere in the flicker of a badly tuned TV set is the background radiation from the Big Bang.

Christian Barnard performed the first heart transplant in 1967 - the patient lived for 18 days.

The tallest tree ever was an Australian eucalyptus - In 1872 it was measured at 435 feet tall.

One in every 2000 babies is born with a tooth.

A salmon-rich, low cholesterol diet means that Inuits rarely suffer from heart disease.