15/06/2017

'Magic' alloy could spur next generation of solar cells

In what could be a major step forward for a new generation of solar cells called "concentrator photovoltaics," University of Michigan researchers have developed a new semiconductor alloy that can capture the near-infrared ...

Jerusalem tower younger than thought

Gihon Spring, just downhill from the ancient city of Jerusalem, was crucial to the survival of its inhabitants, and archaeologists had uncovered the remains of a massive stone tower built to guard this vital water supply. ...

Taking circular economy to the next level

In recent years a growing number of businesses, governments and environmental advocates have embraced the concept of a "circular economy," which aims to achieve greater sustainability by keeping more resources and materials ...

page 4 from 9