A lump of pure gold the size of a matchbox can be flattened into a sheet the size of a tennis court.
140
Your thumb is about the same size as your nose.
124
In the last 7 years, humanity has discovered 43 potentially habitable planets.
14
You forget 90% of your dreams.
256
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