Your body is creating and killing about 2.4 million red blood cells per second.
17
The oldest stone tools found are dated from 2.7 - 2.9 million years ago. The species that made these tools is unknown.
13
Your thumb is about the same size as your nose.
124
If you have 1 billion dollars and spend $1,000 every day, it would take you 2,740 years to go broke.
31
An unprotected human can survive up to 1.5 minutes in space with no permanent bodily damage.
82
A cow produces around 200,000 glasses of milk in her lifetime.
373
The oldest glowing lightbulb was first switched on in 1901 and lives in fire stations in Livermore, CA. It is known as the Centennial Light.
118
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