Stirling Engine from Junk
SciCast film goes here
If you're reading this text, try visiting http://scicast.org.uk/films/2011/06/stirling-engine-from-junk.html directly. If you're already there you probably need to update Flash
A simple heat engine made — mostly — from household rubbish.
The Stirling engine is a wonderful Victorian invention that simply uses the difference in temperature between two plates to expand and compress air, to run a piston. There are many shown on the web, but most have been made using a precision lathe. I wanted to see if I could build one from junk round the home.
I didn’t quite manage it, I bought a glass syringe and some model train bearings.
I am now working on a mk2, which will only be from rubbish.
This is a heck of a feat of engineering. I happen to have a precision-made Sterling engine which, when I’ve got it prepped well, just about runs on the heat difference provided by a really hot mug of tea. So this looks like it’s running even more smoothly, which given the construction materials involved is something the maker should take real pride in.
So I’d like to express my admiration for their handiwork, but also convey my apologies; this film was submitted months ago, somehow vanished into the system, and then got caught up in the move to the new film archive. I’m terribly sorry it’s so late, and I’m glad we can at last share it with the SciCast audience.