Lettuce is a member of the sunflower family

There is a wire-fence in Queensland, Australia, which is 6ft high, and 3347 miles long

There is a wire-fence in Queensland, Australia, which is 6ft high, and 3347 miles long

The America's Cup is so called because the name of the winning boat in the first ever race was called "America" - it was America's Cup !

The America's Cup is so called because the name of the winning boat in the first ever race was called "America" - it was America's Cup !

The last song ever performed live by the Beatles was Long Tall Sally

The last song ever performed live by the Beatles was Long Tall Sally

The junk mail that Americans receive in one day could produce enough energy to heat 250,000 homes.

The junk mail that Americans receive in one day could produce enough energy to heat 250,000 homes.

South Africa has two official national anthems

South Africa has two official national anthems

Two thousand years ago, the ancient Roman city of Pompeii was a thriving commercial port of 20,000 people

Two thousand years ago, the ancient Roman city of Pompeii was a thriving commercial port of 20,000 people

A large cumulonimbus cloud can hold enough water for 500,000 baths. Most of the water droplets in a cloud re-evaporate and never reach the ground; only one-fifth actually falls as rain.

A large cumulonimbus cloud can hold enough water for 500,000 baths. Most of the water droplets in a cloud re-evaporate and never reach the ground; only one-fifth actually falls as rain.

It is possible to re-arrange all the hydrogen atoms in the sun such that they will fit in your pocket, but be no closer to each other than they are at the moment!

It is possible to re-arrange all the hydrogen atoms in the sun such that they will fit in your pocket, but be no closer to each other than they are at the moment!

The average pollen particle is less than the width of a human hair. Pollens can remain on your skin and hair for hours after spending time outdoors. Pollens can travel as far as 400 miles and up to two miles high in the air

The average pollen particle is less than the width of a human hair. Pollens can remain on your skin and hair for hours after spending time outdoors. Pollens can travel as far as 400 miles and up to two miles high in the air

In the Egyptian Pyamids, the length of the diagonal across the base divided by the perpedicular hight gives Pi to ten decimal places.