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
At 04:39 PM 12/28/2007, Tony Langdon wrote:
You still need to know "when near noon" to within 5 minutes to get the required accuracy. :)
Nope. You just note a few points where the tip of the shadow was at various times and draw a line. Don't need any time info at all.
At 01:23 PM 12/29/2007, Franklin Antonio wrote:
At 04:39 PM 12/28/2007, Tony Langdon wrote:
You still need to know "when near noon" to within 5 minutes to get the required accuracy. :)
Nope. You just note a few points where the tip of the shadow was at various times and draw a line. Don't need any time info at all.
Re-read the message carefully (a couple messages back) to see which method I was talking about... ;)
73 de VK3JED http://vkradio.com
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. :)
OK, but explain to me why it is different in your part of the world... UP here, it works!!
73, Dave, WB6LLO dguimon1@san.rr.com
Disagree: I learn....
Pulling for P3E...
participants (3)
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Dave Guimont -
Franklin Antonio -
Tony Langdon