I made another toy top on my lathe. This time I painted it with red, green, and blue to see what would happen when it was spun. Our standard school book learning that red and blue mix to make purple doesn’t quite hold when it comes to reflected light. So the color is different when I spin the top than when I mix the paint, which is fascinating. The coolest part is when I made a video of the spinning top. Because of frame rate, the colors shift and spin through a rainbow in the video. To the naked eye, the spinning top remains magenta, cyan, and gray until it topples. Very interesting phenomena.

It really is worthwhile to click on the video link, so I’ll give it to you again.