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Can something exist without us ever being able to detect it ?

  1. Oct 1, 2013 #1
    can something exist without us ever being able to detect it ??

    as the title states , can something exist without us knowing it does ?
    what if there are other types of particles , maybe even objects that exist , but we do not know they do due to our inability to interact with them ? were there any such particles that scientists found or predicted ??
    can we devise machines or tools to know their existence even though we cant interact with them at the mean time ?
     
    Last edited: Oct 1, 2013
  2. jcsd
  3. Oct 1, 2013 #2

    ZapperZ

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    Closed, pending moderation.

    Zz.
     
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