How can scratch holograms be made more efficiently?
Summary
Scratch holograms scatter light in order to formed raise images. As noted by their name, scratch holograms are made by creating abrasions on the surface of a dark colored flat surface. These abrasions are a series of arcs. This project will focus on making these series of arcs using a laser cutter set on its engraving setting. The engraved surface will be used to make a mold. Then, dark chocolate will be poured on the mold so that the effects of scratch holograms can be seen on an edible surface.
