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.

  • DanYHKim

    Hey! This looks like a good application for the hollowed-out light bulb!

  • cyenobite

    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.