This machine was invented to draw ellipses, but other than that it’s kind of useless. Unless you find its movement satisfying-to-watch, then it’s the best thing in the world. It is called the trammel of Archimedes, however there is no evidence...

This machine was invented to draw ellipses, but other than that it’s kind of useless. Unless you find its movement satisfying-to-watch, then it’s the best thing in the world. It is...