Editing Solar south

Use Solar south to orient your [[Solar Collectors]] and your [[Energy efficient home]]. Here's how to find Solar South: # Use your GPS or look in the paper for the sunrise and sunset times for today. # Calculate the time halfway in between. For instance, on 2007-04-25 (well, every April 25th :-) sunrise is at 06:15 and sunset is at 20:10, so solar noon is at 13:12. # Get a plumb-bob of some kind -- a rock on a string -- ready for 13:12. # The shadow cast from your plumb-bob is solar north-south; your string is at the south end.

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This change is a minor edit.

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