Wind direction and diodes

Thread Starter

KL7AJ

Joined Nov 4, 2008
2,208
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
 

beenthere

Joined Apr 20, 2004
15,808
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.
 

Dave

Joined Nov 17, 2003
6,960
What's interesting about that article is the insignificance of the East wind comparative to the North, South and West winds:

Of the four chief Anemoi, Boreas was the north wind and bringer of cold winter air, Notus was the south wind and bringer of the storms of late summer and autumn, and Zephyrus was the west wind and bringer of light spring and early summer breezes; Eurus, the east wind, was not associated with any of the three Greek seasons, and is the only one of these four Anemoi not mentioned in Hesiod's Theogony or in the Orphic Hymns.
Now I wonder if there is a logical/practical reason for this?

Dave
 

Thread Starter

KL7AJ

Joined Nov 4, 2008
2,208
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

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

Eric the Viking
 

Thread Starter

KL7AJ

Joined Nov 4, 2008
2,208
I suppose since the Greeks only had three seasons, they had to throw out one of the gods. :D

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

mik3

Joined Feb 4, 2008
4,846
I think because the first wind vane pointed to the opposite direction due to its dynamic response.
 
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