Most refrigerators depend on an electric compressor to move heat around, but Greenhill Forge built a working cooler that gets its energy from a wood fire and a solution of common road salt instead. Water serves as the refrigerant. When water boils it soaks up heat from whatever is around it, and the same principle […]
Strasbourg, France — Canada and its Prime Minister Mark Carney have drawn regular scorn from President Trump as the two nations remain locked in an escalating trade war, but European leaders gave the visiting Canadian premier a standing ovation on Thursday. Carney embraced the prospect of his country becoming the European Union’s first associate member, shrugging […]