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Fluid as a medium to transfer electricity

  1. Jan 14, 2009 #1
    http://www.physlink.com/estore/cart/Hydro-Clock.cfm

    I think it just uses the fluid as a medium to transfer electricity from an internal battery, my friends aren't so sure. Any thoughts on this out there?
     
  2. jcsd
  3. Jan 14, 2009 #2

    mrjeffy321

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    Re: Hydro-Clock

    I am thinking it is something like a ‘lemon’ clock, except instead of a lemon one just provides some other electrolyte. There could be the makings of a battery exposed to the electrolyte tank which, when liquid is added, generates the current to run the clock.
     
  4. Jan 14, 2009 #3
  5. Jan 14, 2009 #4

    Gokul43201

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    Re: Hydro-Clock

    You are right. More accurately, the fluid serves as an electrolyte which transfers charge between two electrodes that make up the battery for the clock. The principle is the same as that of any regular galvanic cell.
     
  6. Jan 14, 2009 #5
  7. Jan 14, 2009 #6

    Gokul43201

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    Re: Hydro-Clock

    Only their explanation is wrong!
    Electrons are "extracted" from the anode, not from water.
     
  8. Jan 14, 2009 #7

    LowlyPion

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    Re: Hydro-Clock

    Put it right next to the bubbling sea chest in the aquarium.
     
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