The smell of freshly cut grass is actually a plant distress call.
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There are more atoms in one teaspoon of water than there are teaspoons of water in the Atlantic Ocean.
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One 75-watt bulb gives more light than three 25-watt bulbs.
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A cesium atom in an atomic clock beats over nine billion times a second.
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Scientists in Germany have developed a candy that doesn't cause cavities.
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Some toothpastes and deodorants contain the same chemicals found in antifreeze.
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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.
21
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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