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danowall

Sundial

by danowall Sep 11, 2015
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https://www.amazon.com/gp/aw/s/ref=is_box_?k=3D+Cauldron

She is selling a ton of stuff on Amazon how do we report this

Finding true north (not magnetic!) is simple on a sunny day, although it takes a while. Put a stick in the ground so that it casts a shadow, and somehow mark the point of the shadow cast by the end of the stick (for instance, put a pebble there). Come back an hour or so later, and mark the point of the shadow now cast by the end of the stick. The line through the two points will be east-west. True north-south is 90 degrees from that. (You can use any of a number of instruments to find a right angle, from a protractor or a drafting triangle to a carpenter's square, or take a string and tie equally spaced knots in it, and use the 3-4-5 rule to get a right triangle.) A sundial is a bit more accurate if aligned to true north rather than magnetic north, and true doesn't require any "special" instruments, just a bit of knowledge. (Actually, if you have a sundial, you don't really need to find north-south if you have east-west. Just align it so that marks equidistant from noon (e.g., 9 and 3) are aligned east-west.