We have been talking a while ago about refrigerators that needed no electricity or that were powered by the Sun, through evaporation, helping poor countries with a cool place to keep their food. Now, venture capitalist Adam Grosser teamed up with some Stanford scientists to create refrigerator that really doesn’t need to be plugged in anything but the Sun.
They built a device having the size of a thermos containing a refrigerant that get triggered by heat. So, if you want to keep something cool, you have to heat it first, and then let it cool down. Interesting idea, especially if it will be sold for only $50, as Grosser says.
Imagine you could leave it in the Sun or put it on a camp fire to cool your things. More details would still have to be released for the world to fully believe this really happens (or maybe a live demo). It makes sense on the one hand, energy from heat is used to cool down a chamber. It’s nothing weird at a first glance, but it still leaves you open-mouthed.