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Posted by on Sep 8, 2017 in TellMeWhy |

What Is a Vacuum?

What Is a Vacuum?

What Is a Vacuum? A vacuum, in theory, is a space entirely devoid of matter. But no method has been devised for producing one. In practice, therefore, a vacuum is an...

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Posted by on May 26, 2017 in TellMeWhy |

What Is a Meteorite?

What Is a Meteorite?

What Is a Meteorite? Meteorites begin as bodies of matter traveling at great speed through space. In the solar system there are numberless such bodies, usually chunks...

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Posted by on Jun 25, 2016 in TellMeWhy |

What Causes Sounds?

What Causes Sounds?

What Causes Sounds? All sounds are made by vibrations. Lightly place your fingers on your throat, and speak. The buzz you feel is your vocal cords vibrating. Stretch a...

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