Researchers have created a device that generates mechanical power at night by harnessing the natural temperature difference between warm ground and the cold of outer space. Engineers at the, Davis, ha ...

Engineers at the University of California, Davis, have invented a device that can generate mechanical power at night by ...

Engineers are using the temperature difference between Earth and space to power a low-temperature Stirling engine that drives ...

Earlier this week, we wrote about setbacks at some Silicon Valley companies with new solar technology. They’re built on real science and work in the labs, but they’re grappling with the real-world ...