A lump of pure gold the size of a matchbox can be flattened into a sheet the size of a tennis court.
140
In Georgia, there is an airtight room called the Crypt of Civilization that was sealed in 1940. It contains numerous artefacts documenting what life was like at the time of sealing, and is scheduled to be opened in the year 8113 to show people of the future exactly what life was like.
13
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
You forget 90% of your dreams.
256
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
A cow produces around 200,000 glasses of milk in her lifetime.
373
Pet dogs and elephants are the only animals that seem to instinctively understand human gesture.
14