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.

The largest ketchup bottle in the world is a 170 feet tall and is located in Collinsville, Illinois, USA. It was built in 1949 by the W.E. Caldwell Company as a water tower.

In the early days of the telephone, operators would pick up a call and use the phrase, "Well, are you there?". It wasn't until 1895 that someone suggested answering the phone with the phrase "number please?".

AMAZING FACTS