Relays?

["Sean Johnson" <sean_johnson@milacron.com>]

Thanks a lot! Just when I begin to understand the "smoke" concept, people 
start talking about relays!

Would some kind soul who understands electrons and their interaction with the 
"smoke" concept kindly draw out in ascii graphics a simple non-relay, and a 
simple relay circuit?

I'd also really appreciate a short discussion of the innards of a relay.

Thanks in advance,

Sean "electrically challenged" Johnson
'79 MGB
'75 Spitfire