What is it this called?

Discussion in 'Physics & Math' started by alexb123, Jun 22, 2006.

  1. alexb123 The Amish web page is fast! Valued Senior Member

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    What is the name given for something that goes in and out of existence?
     
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  3. Oli Heute der Enteteich... Registered Senior Member

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    Noun or adjective? Evanescent?
     
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  5. CANGAS Registered Senior Member

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    virtual. As in virtual particle.
     
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