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    Re: Status of Celestial Nav in 2015
    From: Samuel L
    Date: 2015 Mar 10, 14:27 -0700

    I had read of some folks using a pressure cooker for a Faraday cage while aboard. The only problem might be the seal providing an imperfect electrical connection betwen the lid and the pot. But, there are other metal parts that do come in contact with eachother such as the Magefesa "Star" style pressure cooker that has a bar across the lid which would be in contact with the pot.

    Sam L.




    Re: Status of Celestial Nav in 2015
    From: Don Seltzer
    Date: 2015 Mar 10, 16:07 -0400


    Ideally, the surrounding Faraday cage is a perfect conductor.  Thin
    aluminum foil might have sufficient electrical resistance to be an
    effective shield.  I believe it is also better if the Faraday cage is
    externally grounded.
    Don Seltzer
    On Tue, Mar 10, 2015 at 3:41 PM, Bob Goethe  wrote:
    >>>As to Faraday cages: I did an experiment with one of our cell phones. I
    >>> wrapped it up in heavy aluminum foil, folded all the edges, and placed it in
    >>> an all metal eyeglass case. My mate then dialed the phone and behold- it
    >>> rang. I figure if a mobile phone signal can transmit through that set up an
    >>> EMP would have no trouble at all. <<
    > Try this again, but this time put an electrical-insulator layer around the
    > cellphone so that the metal can't touch it at all.  I'll do the same thing
    > sometime in the next 24 hours.
    > We can both adopt the motto of the Royal Society:  Nullius in verba (Latin
    > for "on the word of no one" or "Take nobody's word for it").
    > I'll be disturbed if this whole Faraday cage thing doesn't work.
    > Bob

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