Scientists are now able to grow 'beating' heart tissue in a lab!
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Blue eyes are a genetic mutation. Before the mutation occured, all humans had brown eyes.
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One barrel of petroleum holds 42 gallons.
20
Stephen Hawking once tried to find potential time travellers by throwing a party and only sending out invitations after the party.
17
Oxygen, carbon, hydrogen and nitrogen make up 90% of the human body.
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Scientists are learning from the 1700-year-old Lycurgus Cup, which changes colour thanks to nano particles.
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Rafflesia Arnoldii is the largest flower in the world and can grow as big as an umbrella.
42
A single cup of gasoline, when ignited, has the same explosive power as five sticks of dynamite.
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