An individual blood cell takes about 60 seconds to make a complete circuit of the body.

Microbial life can survive on the cooling rods of a nuclear reactor.

More germs are transferred shaking hands than kissing.

Each person sheds 40lbs of skin in his or her lifetime.

A typical hurricane produces the nergy equivalent to 8,000 one megaton bombs.

The Universe contains over 100 billion galaxies.

Our oldest radio broadcasts of the 1930s have already travelled past 100,000 stars.

The wingspan of a Boeing 747 is longer than the Wright brother's first flight.