Ketchup is excellent for cleaning brass, especially tarnished and corroded brass

Sterling silver contains 7.5% copper

The active ingredient in smelling salts is ammonia

There is a 1/4 pound of salt in every gallon of seawater

The average smell weighs 760 nanograms

There are more than 1,00 chemicals in a cup of coffee

If you were freeze-dried, 10% of your body weight would be from the micro-organisms on your body

When glass breaks, the cracks move at speeds up to 3,000 miles per hour

Ninety eight per cent of the weight of water is made up of oxygen

9 Facts

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