
Here's how to make a device to record the path of the sun by burning a track onto a piece of paper - Thanks Bf5man! Link.
HOW TO - Make a RunnerDuck Gizzie (Sun Tracker)
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Hey! This looks like a good application for the hollowed-out light bulb!
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Just a quick comment to say that the image on the paper looks like the "eye in the pyramid" on the back of the dollar bill.
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