Scientists at the Zhejiang University in China have developed an ultra-light material known as carbon aerogel.
3
A lump of pure gold the size of a matchbox can be flattened into a sheet the size of a tennis court.
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Pet dogs and elephants are the only animals that seem to instinctively understand human gesture.
14
There are so many kinds of apples that if you ate a new one everyday, it would take over 20 years to try them all.
34
A cow produces around 200,000 glasses of milk in her lifetime.
373
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