HELPFUL – Page 49 – Our Fragile Earth

ULTRAFAST SOLAR SPRAY

An easy one-step technique could speed up commercialization of perovskite solar cells made from inexpensive, abundant materials. It promises to[…]

A new portable solar-powered device harnesses the sun’s energy generating steam efficiently at high temperatures and pressures even in hazy[…]

Most of us know that replacing an old incandescent lightbulb with new LED lighting saves energy and money. To mitigate[…]

A new material works like a luminescent solar concentrator and can be applied to textile fibers. Thus jackets, T-shirts. etc.[…]

The US could double or even quadruple the installed wind power capacity with little change to system-wide efficiency, and the[…]

Image: UBC Media Relations via Flickr Buildings are currently the source of about one-third of global greenhouse gas emissions. Wooden[…]

Photo: Dennis Schroeder, NREL Transparent glass panes using special thermochromic materials coated on glass or sandwiched between glass panels can[…]

Steel production contributes 7-9% of the world’s direct emissions from fossil fuels. Demand is projected to increase with growing global[…]

Seawater air-conditioning [SWAC] involves pumping cold water from oceans at depths of below 700 meters and temperatures of 3 to[…]

Scientists have derived design rules for light-absorbing dyes able to help make organic solar cells more efficient, while tailoring their[…]