| earth |
The reference point for zero electrical potential. An AC voltage swings positive and negative in relation to the earth (or ground) potential. Electricity generating stations literally have a robust connection into the ground to set this level. Early radios used an earth connection to a moistened metal stake in the garden or connection to metal water pipes. A Good Earth was essential in a radio to allow for the maximum potential difference to be built up in an aerial receiving radio waves.
출처: www.vintage-technology.info/pages/frontpages/gloss...
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| earth |
The. Arabic arz Muhammad taught his followers that hust as there are seven heavens [HEAVEN.] on above another, so there are seven earths one beneath another, the distance between each of these regions being five hundred years' journey. (Mishkat, book xxiv cI part 3)
출처: answering-islam.org.uk/Books/Hughes/e.htm
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| earth |
Third planet in the Terran system, homeworld to humans. ("Broken Bow" [ENT]).
출처: rain.prohosting.com/entcom/e.htm
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| earth |
(Terra - teh-rah) - one of the four creative elements, associated with the north and with the ritual pentacle
출처: www.fabrisia.com/glossary.htm
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| earth |
One of the four elements. Earth symbolizes security, the edifices and sytems of society which instill a sense of permanence or reality.
출처: www.astrologyguidance.com/reference/glossary1.shtm...
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