Now you Know

A cockroach can live for several weeks without its head.

The average human produces a quart of saliva a day -- about 10,000 gallons in a lifetime.

Elephants have been known to remain standing after they die.

The embryos of tiger sharks fight each other while in their mother's womb, the survivor being the baby shark that is born.

Ants do not sleep.

Nearly a third of all bottled drinking water purchased in the us is contaminated with bacteria.

Rats multiply so quickly that in 18 months, two rats could have over 1 million descendents.

An astronaut can be up to 2 inches taller returning from space. The cartilage disks in the spine expand in the absence of gravity.

The oldest known fossil is of a single-celled organism, blue-green algae, found in 3.2 billion year-old stones in south africa.

The oldest multicellular fossils date from ~700 million years ago.

The earliest cockroach fossils are about 280 million years old.

Healthy nails grow about 2 cm each year. Fingernails grow four times as fast as toenails.

20/20 vision means the eye can see normally at 20 feet. 20/15 is better; the eye can see at 20 feet what another eye sees at 15 feet.

The average person has 100,000 hairs on his/her head. Each hair grows about 5 inches (12.7 cm) every year.

There are 60,000 miles (97,000 km) in blood vessels in every human.

Antipodes
A region or place on the opposite side of a point on the earth.

Anticyclones
Winds which blow outward from the center.

Aphelion
Position of the earth in its orbit when is at the maximum distance from the sun.

Archipelago
A cluster of islands, e.g., pearl islands in the gulf of panama.

Atoll
Coral reef resembling a horse shoe, enclosing a lagoon.

Fact
The name of the award given to honor the best sites on the Internet is called The Webby Award. .. More >>