Cows can sleep standing up, but they can only dream lying down.
745
The focusing muscles of the eyes move around 100,000 times a day. To give your leg muscles the same workout, you would need to walk 80km (50 miles) every day.
21
If aliens located 60-65 million light years away from us, looked at earth through a really powerful telescope today, they would see dinosaurs!
18
The University of Oxford (teaching since 1096) predates the Aztec empire (1428 - 1521).
14
A lump of pure gold the size of a matchbox can be flattened into a sheet the size of a tennis court.
140
It's possible to die from a broken heart; it's called Stress Cardiomyopathy.
165
The strangers in your dreams are actually people that you've seen in real life.
50
The oldest glowing lightbulb was first switched on in 1901 and lives in fire stations in Livermore, CA. It is known as the Centennial Light.
118