Balsa wood is classified as a hard wood!
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Scientists have revived a flowering plant from a fruit stored away in permafrost by Arctic ground squirrel 32,000 years ago.
16
Sound at the right vibration can bore holes through a solid object.
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A cesium atom in an atomic clock beats over nine billion times a second.
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Diamonds can be shattered with a hammer.
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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
Scientists are now able to grow 'beating' heart tissue in a lab!
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The weight of a carat (200 milligrams), standard unit of measurement for gemstones, is based on the weight of the carob seed.
51