The smell of freshly cut grass is actually a plant distress call.
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MIT has developed a camera that captures the speed of light at a trillion frames per second.
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When you walk down a steep hill, the pressure on your knees is equal to three times your body weight.
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A ball of glass will bounce higher than a ball made of rubber.
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Scientists are now able to grow 'beating' heart tissue in a lab!
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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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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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