Don Casey - Dragged Aboard Storm Tactics Handbook:
Modern Methods of Heaving-To for Survival in Extreme Conditions
by Lin Pardey and Larry Pardey


      

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lv-ab: Galvanic currents

From: Eric Thompson (no email)
Date: Mon Oct 01 2001 - 11:00:41 EDT

  • Next message: Arild Jensen: "Re: lv-ab: Galvanic current"

    Dick,
     I don't know for sure but I WOULD BET that the original
    atoms from your prop would be gone on the one half cycle and
    then replaced by whatever atoms were most mobile in the
    surrounding seawater during the other half cycle.
      Oh by the way, bronze is an alloy so there are bronze
    molecules not atoms. There are copper atoms and iron atoms
    and whatever the copper is mixed with to make it bronze, but
    no bronze atoms.
    Picky, picky,ain't I?

    Eric Thompson
    S/V Procrastinator
    South San Francisco

    Dick wrote,

    From the point of view of electroplating, or more to the
    point
    unplating, it would certainly seem like AC would not be as
    harmful as
    DC. On one half cycle some bronze atoms from your prop
    might become
    dissociated from the prop, but then on the other half cycle,
    wouldn't
    they just go right back where they came from?

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