Some of you may remember this from physics class – but here’s a cool trick. Grab a light source (led and battery in this case), a tiny image, and a magnifying glass.
Line them up just right (the ratio of distances is equal to the magnification of the lens) and SHAZAM! You are a projector! 🙂 I have an idea in mind involving projections – I have to find some affordable super-bright LEDs.