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#51
February 22nd 05, 11:13 AM
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Weather Station Anemomenter (THIS IS NOT SPAM)
On Tue, 22 Feb 2005 08:55:36 GMT, Steve Loft wrote:
I think for this to work (apart from the other comments about the equation of time) ... Which are pretty much the same error as that from using a magnetic compass, which also varies depending on your location. B-) And without proper sighting and reasonable view it's all a bit hit 'n miss anyway. ... you *bisect* the angle between the sun and the hour hand to give south? In the northern hemisphere, of course. This is true, I like this page of explanation, pretty picture that illustrates the principle better than just words. http://www.time4watches.com/Watch%20...ch_as_a_compas s.htm http://makeashorterlink.com/?T2491288A -- Cheers Dave. pam is missing e-mail |
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#52
February 22nd 05, 11:13 AM
posted to uk.sci.weather
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Weather Station Anemomenter (THIS IS NOT SPAM)
On Tue, 22 Feb 2005 08:55:36 GMT, Steve Loft wrote:
I think for this to work (apart from the other comments about the equation of time) ... Which are pretty much the same error as that from using a magnetic compass, which also varies depending on your location. B-) And without proper sighting and reasonable view it's all a bit hit 'n miss anyway. ... you *bisect* the angle between the sun and the hour hand to give south? In the northern hemisphere, of course. This is true, I like this page of explanation, pretty picture that illustrates the principle better than just words. http://www.time4watches.com/Watch%20...ch_as_a_compas s.htm http://makeashorterlink.com/?T2491288A -- Cheers Dave. pam is missing e-mail |
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#53
February 22nd 05, 11:13 AM
posted to uk.sci.weather
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Weather Station Anemomenter (THIS IS NOT SPAM)
On Tue, 22 Feb 2005 08:55:36 GMT, Steve Loft wrote:
I think for this to work (apart from the other comments about the equation of time) ... Which are pretty much the same error as that from using a magnetic compass, which also varies depending on your location. B-) And without proper sighting and reasonable view it's all a bit hit 'n miss anyway. ... you *bisect* the angle between the sun and the hour hand to give south? In the northern hemisphere, of course. This is true, I like this page of explanation, pretty picture that illustrates the principle better than just words. http://www.time4watches.com/Watch%20...ch_as_a_compas s.htm http://makeashorterlink.com/?T2491288A -- Cheers Dave. pam is missing e-mail |
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#54
February 22nd 05, 12:27 PM
posted to uk.sci.weather
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Weather Station Anemomenter (THIS IS NOT SPAM)
Dave Liquorice wrote:
Which are pretty much the same error as that from using a magnetic compass, which also varies depending on your location. I have to admit I put mine up using a compass, without any thought to the fact that there was an error involved. I wonder how far out it is? -- Steve Loft, Wanlockhead, Dumfriesshire. 1417ft ASL http://www.wanlockhead.org.uk/weather/ Free weather softwa http://cumulus.nybbles.co.uk/ Experimental webcam: http://www.wanlockhead.org.uk/webcam.php |
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#55
February 22nd 05, 12:27 PM
posted to uk.sci.weather
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Weather Station Anemomenter (THIS IS NOT SPAM)
Dave Liquorice wrote:
Which are pretty much the same error as that from using a magnetic compass, which also varies depending on your location. I have to admit I put mine up using a compass, without any thought to the fact that there was an error involved. I wonder how far out it is? -- Steve Loft, Wanlockhead, Dumfriesshire. 1417ft ASL http://www.wanlockhead.org.uk/weather/ Free weather softwa http://cumulus.nybbles.co.uk/ Experimental webcam: http://www.wanlockhead.org.uk/webcam.php |
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#56
February 22nd 05, 12:27 PM
posted to uk.sci.weather
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Weather Station Anemomenter (THIS IS NOT SPAM)
Dave Liquorice wrote:
Which are pretty much the same error as that from using a magnetic compass, which also varies depending on your location. I have to admit I put mine up using a compass, without any thought to the fact that there was an error involved. I wonder how far out it is? -- Steve Loft, Wanlockhead, Dumfriesshire. 1417ft ASL http://www.wanlockhead.org.uk/weather/ Free weather softwa http://cumulus.nybbles.co.uk/ Experimental webcam: http://www.wanlockhead.org.uk/webcam.php |
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#57
February 22nd 05, 12:27 PM
posted to uk.sci.weather
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Weather Station Anemomenter (THIS IS NOT SPAM)
Dave Liquorice wrote:
Which are pretty much the same error as that from using a magnetic compass, which also varies depending on your location. I have to admit I put mine up using a compass, without any thought to the fact that there was an error involved. I wonder how far out it is? -- Steve Loft, Wanlockhead, Dumfriesshire. 1417ft ASL http://www.wanlockhead.org.uk/weather/ Free weather softwa http://cumulus.nybbles.co.uk/ Experimental webcam: http://www.wanlockhead.org.uk/webcam.php |
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#58
February 22nd 05, 12:31 PM
posted to uk.sci.weather
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Weather Station Anemomenter (THIS IS NOT SPAM)
On Tue, 22 Feb 2005 12:27:36 GMT, Steve Loft
wrote: I wonder how far out it is? Not much, about 4°. -- Alan White Twenty-eight miles NW of Glasgow, overlooking Loch Goil and Loch Long in Argyll, Scotland. Web cam, http://www.windycroft.gt-britain.co....her/kabcam.htm Web site, http://www.alan.lesley.ukgateway.net |
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#59
February 22nd 05, 12:31 PM
posted to uk.sci.weather
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Weather Station Anemomenter (THIS IS NOT SPAM)
On Tue, 22 Feb 2005 12:27:36 GMT, Steve Loft
wrote: I wonder how far out it is? Not much, about 4°. -- Alan White Twenty-eight miles NW of Glasgow, overlooking Loch Goil and Loch Long in Argyll, Scotland. Web cam, http://www.windycroft.gt-britain.co....her/kabcam.htm Web site, http://www.alan.lesley.ukgateway.net |
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#60
February 22nd 05, 12:31 PM
posted to uk.sci.weather
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Weather Station Anemomenter (THIS IS NOT SPAM)
On Tue, 22 Feb 2005 12:27:36 GMT, Steve Loft
wrote: I wonder how far out it is? Not much, about 4°. -- Alan White Twenty-eight miles NW of Glasgow, overlooking Loch Goil and Loch Long in Argyll, Scotland. Web cam, http://www.windycroft.gt-britain.co....her/kabcam.htm Web site, http://www.alan.lesley.ukgateway.net |
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