Re: the ultimate refrigerator

Anders Sandberg (
15 Dec 1997 18:54:33 +0100

John K Clark <> writes:

> I think Laser cooling would be much more practical, temperatures about that
> low have already been reached with it, it's how a Bose Einstein condensate
> was made a few years ago.

The problem is that the lasers themselves get hot. It is a very
energy-intensive form of cooling, and you cannot fool entropy with
it. So it will likely work well for small regions, but an even larger
region will get entropic.

Anders Sandberg                                      Towards Ascension!                  
GCS/M/S/O d++ -p+ c++++ !l u+ e++ m++ s+/+ n--- h+/* f+ g+ w++ t+ r+ !y