All physics buffs

  • Posted by a hidden member.
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    Sep 28, 2010 2:01 PM GMT
    What the hell is a rayl?

    I'm sitting here converting pressures to intensities and wondering why I'm using a measurement for the impedance of air in rayls. Why do we use this measurement?
  • Posted by a hidden member.
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    Sep 28, 2010 3:32 PM GMT
    I believe it was used more on the planet Krypton
  • geebus

    Posts: 216

    Sep 30, 2010 2:00 AM GMT
    Because physicists are idiots in that we're not happy with the way our equations look, so let's change the units so that it looks better.

    Nothing more annoying than remembering equations in an exam then realizing it's in CGS or natural units when it's specified to give answers in SI icon_mad.gif