A lump of pure gold the size of a matchbox can be flattened into a sheet the size of a tennis court.
140
An unprotected human can survive up to 1.5 minutes in space with no permanent bodily damage.
82
Only about 2% of the world population has green eyes.
36
The University of Oxford (teaching since 1096) predates the Aztec empire (1428 - 1521).
14
In 2011, archaeologists discovered the skeletal remains of a Roman couple who have been holding hands for 1,500 years.
81
Lurch, a Watusi bull, had the largest horns in the world.
32
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
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