Day 113: Reflection & Mirrors

How long does a plane mirror need to be so you can see your whole body? Where is your image located? We experimented with that today. I realize I should by more long plane mirrors so more people are willing to try it out.

We also looked, in detail, about how light would bounce off a curved mirror. There seemed to be a focal point, where the parallel rays of light would all converge. But what about objects that are not infinitely far away? It was off to lab to collect some data.

We got great data, but then finding a function to model the object distance and the image distance was difficult. I need to find a better way than just guess-and-check until I have to show them the quite-complicated fit.