[wally_bert]

A bit long but worth watching:

http://www.youtube.com/watch?v=y-bz7nYGxgo

http://www.youtube.com/watch?v=xa588EDwwiE

http://www.youtube.com/watch?v=oiaQdoC92Ls

http://www.youtube.com/watch?v=qRr2FltLwYI (Talks about early AC and refrigeration)

http://www.youtube.com/watch?v=zxkaD02iO1g

[Yardstick]

Thanks — I’ll check that out after work...