Stephen Hawking once tried to find potential time travellers by throwing a party and only sending out invitations after the party.
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One ragweed plant can release as many as one billion grains of pollen!
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Scientists have developed a microparticle filled with oxygen that can be injected into the blood stream, enabling us to live without breathing.
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0.3% of solar energy from the Sahara is enough to power the whole of Europe.
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The most expensive material on the planet is antimatter - worth $62.5 trillion per gram.
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There are more than 270 people cryogenically frozen in the hope that one day the technology will exist that can revive them and extend their lives.
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Brass doorknobs automatically disinfect themselves in about 8 hours.
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