Olives, which grow on trees, were first cultivated 5,000 years ago in Syria.

By recycling just one glass bottle, the amount of energy that is being saved is enough to light a 100 watt bulb for four hours.

The external tank on space shuttles is not painted. It is the only part of the shuttle that is lost after launch, so it is not necessary to worry about metal corrosion.

AMAZING FACTS