A lump of pure gold the size of a matchbox can be flattened into a sheet the size of a tennis court.
140
Pet dogs and elephants are the only animals that seem to instinctively understand human gesture.
14
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
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
It's possible to die from a broken heart; it's called Stress Cardiomyopathy.
165
In 2011, archaeologists discovered the skeletal remains of a Roman couple who have been holding hands for 1,500 years.
81
The oldest stone tools found are dated from 2.7 - 2.9 million years ago. The species that made these tools is unknown.
13