28 Dec
2007
28 Dec
'07
7:39 p.m.
At 11:14 AM 12/29/2007, Dave Guimont wrote:
A vertical rod about 4' long (plumb it, or use a level) will have the shortest shadow at noon.
I should have said "near noon".....
You still need to know "when near noon" to within 5 minutes to get the required accuracy. :)
73 de VK3JED http://vkradio.com
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participants (3)
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Dave Guimont
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Franklin Antonio
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Tony Langdon