Energy & Green Tech

Why can't we get our drinking water from the ocean?

For centuries, people have been trying to divine freshwater from the ocean. Ships in the 16th century carried small distilleries that could be used in the event of an emergency to boil seawater. But trying to do this on a ...

Energy & Green Tech

Strong sunlight powers passive cooling device

A simple cooling system driven by the capture of passive solar energy could provide low-cost food refrigeration and living space cooling for impoverished communities with no access to the electricity grid. The system, which ...

Energy & Green Tech

Closer to a heat battery: Understanding the atomistic processes

Salts are cheap and sustainable materials that can be used to store energy (heat) over periods ranging from hours to years without loss. This works via so-called hydration-dehydration processes. Energy release (discharge) ...

Engineering

Researchers pave the way to salt-resistant concrete

Pavements could soon be saved from some of the ravages of the winter chill thanks to a new type of low-cost concrete that absorbs significantly less of the salt that gets spread on it annually.

page 1 from 2