When the volume of a gas decreases at a maintained pressure, the temperature of the remaining gas falls. Such is the law the defines the concept behind the Jet Engine-powered Beer Cooler. Using a LPG cylinder and a jet engine to cool his favorite brew, the designer of the beer cooler is never without an icy cold one.
If you can get your hands on the beer pouring robot, you have the makings of a BBQ of epic proportions, and a side-note to the manliest of the bots. All we need now is a robot to properly later our ribs in sauce. — Andrew Dobrow