Re: PHYSICS: force fields

From: Eliezer S. Yudkowsky (sentience@pobox.com)
Date: Mon Jun 09 2003 - 21:10:24 MDT

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    Robert J. Bradbury wrote:
    > Now this is pretty cool. Physics News Update is reporting
    > that Brookhaven & Argonne labs have managed to develop an
    > actual "force field". (If you had asked me a few years
    > ago whether this was possible I would have looked at you
    > like you were crazy for even asking the question....
    > But hell its probably a simulation so all bets are off.)
    >
    > See:
    > "A Plasma Valve"
    > http://www.aip.org/enews/physnews/2003/split/640-2.html

    I liked this part:

    "Housed inside a hollow copper cylinder, the plasma reaches a temperature
    of 15,000 degrees Kelvin (about 50 times greater than room temperature)."

    This sentence, of course, makes *absolutely no sense* to anyone who does
    not already know exactly what the Kelvin scale is. So much for popular
    science.

    Editor: "Er, you say it's 15,000 Kelvin... what's that?"
    Scientist: "It's a temperature."
    Editor: "Ah."
    (Editor corrects the sentence to read "15,000 degrees Kelvin".)
    Editor: "And, um, about how hot is 15,000 degrees Kelvin, then?"
    Scientist: "Very hot. Room temperature is just 300 Kelvin, for example."
    Editor: "So it's about 50 times greater than room temperature, then?"
    Scientist: "Exactly! Why, you must have a very good understanding of
    heat to phrase it that way."
    (Proud of himself, editor inserts the phrase verbatim.)

    -- 
    Eliezer S. Yudkowsky                          http://singinst.org/
    Research Fellow, Singularity Institute for Artificial Intelligence
    


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