Instant Drink Cooler with No Ice
Have you ever noticed how aerosol cans get cold when you use them? The physics behind this effect is explained by the ideal gas law, which for this case means that reducing the pressure inside the can also reduces its temperature. The principle is the basis for all modern air conditioning, and was even used to create a propane-powered ice maker (the creator wanted to have cold beer for his entire week long canoeing trip).
Recently, this inventor used this phenomenon to make another novel way to cool down drinks. His creation uses CO2 cartridges to instantly cool any drink in 7 seconds, and each cartridge can cool down 24 of your favorite beverages. It costs around $50, and will hopefully be available here soon.
http://inventorspot.com/articles/warm_beer_ice_cold_beer_seconds_ _8276
