Now you Know

Ants cannot chew their food, they move their jaws sideways, like scissors, to extract the juices from the food.

Hummingbirds are the only animals able to fly backwards.

Tigers have striped skin, not just striped fur.

A cat's jaws cannot move sideways.

Armadillos get an average of 18.5 hours of sleep per day.

Armadillos can walk underwater.

There are more beetles than any other kind of creature in the world.

Certain frogs that can survive the experience of being frozen.

Only humans sleep on their backs.

The human brain is 80% water.

Everyone's tongue print is different.

As an adult, you have more than 20 square feet of skin on your body--about the same square footage as a blanket for a queen-sized bed.

In your lifetime, you'll shed over 40 pounds of skin.

15 million blood cells are produced and destroyed in the human body every second.

Every minute, 30-40,000 dead skin cells fall from your body.

The brain uses more than 25% of the oxygen used by the human body.

If your mouth was completely dry, you would not be able to distinguish the taste of anything.

There are more living organisms on the skin of a single human being than there are human beings on the surface of the earth.

Muscles are made up of bundles from about 5 in the eyelid to about 200 in the buttock muscle.

Muscles in the human body (640 in total) make up about half of the body weight.

Invention
Invention : detector, home smoke
Year : 1969
Inventor : randolph smith, kenneth house
Country : us. .. More >>