Turn the handle on this paper automata and the cow
Sometimes mechanisms don’t do what you expect them to do.
Fun times with a weekend project! I decided to start
Having worked out a Flat Land version of a rowing
Here's a problem that comes up from time to time.
Turn the handle and the remorselessly hammers anything in its
This is a fun mechanism. I like some of the
The four bar linkage is a simple mechanism with a
Presented for your entertainment, an animated picture of a paper
The original steam engines used pistons that were powered in