I was looking at documents that showed how to build a Linde (from Germany) air liquification machine which could be used instead of purchasing liquid nitrogen for serious overclocking of CPU's and other components.Apparently it does take some work but such an apparatus can be built fairly easily.Of course liquid air by itself could be a fire hazard.
One could distill out the LOX or use LOX for another hobby (amateur rocketry).
http://en.wikipedia.org/wiki/Liquid_air
http://www.linde.com/international/web/linde/like35lindecom.nsf/docbyalias/page_ch_chronicle_18911934details_1
One could distill out the LOX or use LOX for another hobby (amateur rocketry).
http://en.wikipedia.org/wiki/Liquid_air
http://www.linde.com/international/web/linde/like35lindecom.nsf/docbyalias/page_ch_chronicle_18911934details_1