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 cow produces around 200,000 glasses of milk in her lifetime.
373
Your thumb is about the same size as your nose.
124
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
Your body is creating and killing about 2.4 million red blood cells per second.
17
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
In the last 7 years, humanity has discovered 43 potentially habitable planets.
14