Silent PC Review Usability Mike Chin phoned me and we had a chat about usability on this website. This is further reflection on SPCR. :D :D GOOD :D :D :D I am finding lots of useful information on the site. :D Information is current, high quality and well written with a great mix of bits of theory w...

this is off topic but why doesn't usa use the heatpump method for the conventional air conditioning? it should save them huge electricity over the nh3 compression/decompression, i would think. if i remember correctly, doens't japan use heatpump for their a/c? Freon (and its non-CFC alternatives) an...