Wind direction and diodes

Discussion in 'General Electronics Chat' started by KL7AJ, Jul 15, 2009.

  1. KL7AJ

    Thread Starter AAC Fanatic!

    Nov 4, 2008
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    Well, we all know why we draw diodes with the arrow going AGAINST the flow of electrons....but do you know why we specify WIND direction as the directon it comes from, instead of where it's blowing?

    Hint: It's super scientific! :D


    http://en.wikipedia.org/wiki/Anemoi
     
  2. beenthere

    Retired Moderator

    Apr 20, 2004
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    That is the way the wind vane points, so sailors can distinguish true and apparent wind directions. This is handy when sailing, determining offset for gunnery fire control. and doing aircraft operations.
     
  3. Dave

    Retired Moderator

    Nov 17, 2003
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    What's interesting about that article is the insignificance of the East wind comparative to the North, South and West winds:

    Now I wonder if there is a logical/practical reason for this?

    Dave
     
  4. KL7AJ

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    Nov 4, 2008
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    I suppose since the Greeks only had three seasons, they had to throw out one of the gods. :D

    Eric the Viking
     
  5. KL7AJ

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    By the way, in Fairbanks, we have four distinct seasons: Early winter, Mid-winter, Late winter, and Next winter. :D
     
  6. Wendy

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    Mar 24, 2008
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    Didn't you forget Winter Melt? Or is that Winter Slush?
     
  7. mik3

    Senior Member

    Feb 4, 2008
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    I think because the first wind vane pointed to the opposite direction due to its dynamic response.
     
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