EnvironmentMillimetre-wave beams could give us access to deep geothermal energy Optimised for fusion research, millimetre-wave beam technology could be adapted to access the heat that lies several kilometres below Earth's surface, says Eugene LindenComment
TechnologySolar panels that work at night produce enough power to charge a phone Solar panels are cooler than the night air, creating a temperature difference that can be exploited to produce electricity 51¶¯Âþ