Refrigeration is commonplace in the modern era. We use it to keep our food from spoiling, to cool our homes and workplaces, and to keep our car cabins from becoming saunas. There are even specific ...

The Stirling external combustion engine has fascinated gear heads since its inception, and while the technology has never enjoyed widespread commercialization, there’s a vibrant community of tinkerers ...

Have you ever imagined a bike powered not by gasoline or electricity, but by the simple act of heating and cooling air? It might sound like something out of a science fiction novel, but the concept is ...