A lump of pure gold the size of a matchbox can be flattened into a sheet the size of a tennis court.
140
You forget 90% of your dreams.
256
Scientists have revived a flowering plant from a fruit stored away in permafrost by Arctic ground squirrel 32,000 years ago.
16
The oldest stone tools found are dated from 2.7 - 2.9 million years ago. The species that made these tools is unknown.
13
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
An unprotected human can survive up to 1.5 minutes in space with no permanent bodily damage.
82
Mars had an oxygen-rich atmosphere around 4 billion years ago
13
The 409 escalators in the London subway cover a distance every week which is approximately equivalent to several trips around the globe!
94