The oldest stone tools found are dated from 2.7 - 2.9 million years ago. The species that made these tools is unknown.
13
The University of Oxford (teaching since 1096) predates the Aztec empire (1428 - 1521).
14
Your thumb is about the same size as your nose.
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In the last 7 years, humanity has discovered 43 potentially habitable planets.
14
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
Scientists at the Zhejiang University in China have developed an ultra-light material known as carbon aerogel.
3
The Lion's Mane Jellyfish is the largest jellyfish in the world. They have been swimming in arctic waters since before the dinosaurs (over 650 million years ago).
12
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.
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