Intel and SGI trial submerging servers in liquid to cool them
Intel and SGI have been trialing a new method of cooling servers and supercomputers that involves submerging them completely in liquid. This cooling solution doesn't rely on water though, as its properties would damage components, instead opting for a dielectric liquid from 3M called 'Novec'.
Fire suppression systems already harness Novec, but this is the first time it has been used as a cooling solution in data centers.
Certainly looks like it beats mineral oil for the purpose (although there are a lot of fluorines present -- I'm not a chemist but I'd be cautious about doing any obsessive experimenting with it.)