DragStuff

I ran across this very interesting resource from Cornell
This is the Kinematic Models for Design Digital Library. If you're interesting in different types of mechanisms, gears, linkages, etc. this will something you'll find interesting...

http://kmoddl.library.cornell.edu/


For example, this slider crank mechanism is kinda cool - http://kmoddl.library.cornell.edu/resources.php?id=169

Or, have you ever seen a "Scotch Yoke" ?

http://kmoddl.library.cornell.edu/resources.php?id=1641

Rainy day entertainment ...