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
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
Not only are there rogue planets floating through space completely alone, not orbiting any stars, but it’s possible that these pitch-black lonely planets support life.
14
The 409 escalators in the London subway cover a distance every week which is approximately equivalent to several trips around the globe!
94
Lurch, a Watusi bull, had the largest horns in the world.
32
Iceland has been so culturally isolated through history since the Vikings, that compared to other Scandinavian counties, people who speak Icelandic can still read the old Norsk sagas.
4