In the 60s, a scientist gave LSD to dolphins in an attempt to teach them English.
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The gas that gives rotten eggs their distinctive foul smell may slow ageing and block damaging chemical reactions inside cells, according to scientists in China.
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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.
13
Sound travels about 4 times faster in water than in air.
408
One barrel of petroleum holds 42 gallons.
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The storage capacity of human brain exceeds 4 Terrabytes.
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If you are locked in a completely sealed room, you will die of carbon dioxide poisoning first before you will die of oxygen deprivation.
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During photosynthesis, plants emit light humans can’t see, but NASA can see that light from space - and they've even made maps of it!
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