[KenWittlief]

yes, the blower is not directional - it works on centrifical force

it would be good for every team to take a burnt out motor, or one you are not using (like the fisherprice motors) and disassemble it and glue it to a piece of lexan or something

so that new students can see whats inside it, and get an intuitive sense of how it works, instead of it being a metal can with two wires coming out.

BTW - when you really cook a motor you will know - it has a lingering nasty smell, a little bit like varnish or shellac - and once you cook it the smell never goes away, it will always stink.