Scientists at the Zhejiang University in China have developed an ultra-light material known as carbon aerogel.
3
Iceland has been so culturally isolated through history since the Vikings, that compared to other Scandinavian counties, people who speak Icelandic can still read the old Norsk sagas.
4
Cows can sleep standing up, but they can only dream lying down.
745
In the last 7 years, humanity has discovered 43 potentially habitable planets.
14
A cow produces around 200,000 glasses of milk in her lifetime.
373
Your body is creating and killing about 2.4 million red blood cells per second.
17
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
A lump of pure gold the size of a matchbox can be flattened into a sheet the size of a tennis court.
140