Animated engines

[HebdenHedgehog]

Apologies if this is a re-post (I can't check as the PH search function isn't working at the moment)

but this is fab!!

http://www.animatedengines.com/index.shtml

[Speed addicted]

That is really good, should be a sticky to shown the wankel.

[McSam]

I like it, the wankel one is definitely useful! Cheers

Also worth noting that the ones on HowStuffWorks are very good.