Stanford Engineers Invent High Tech Mirrors that Beam Light into Space

Illustration of reflective panel on building

A new ultrathin multilayered material can cool buildings without air conditioning by radiating warmth from inside the buildings into space while also reflecting sunlight to reduce incoming heat.

Fan Lab

Stanford engineers have invented a material designed to help cool buildings. The material reflects incoming sunlight, and it sends heat from inside the structure directly into space as infrared radiation (represented by reddish rays).
Stanford engineers have invented a revolutionary coating material that can help cool buildings, even on sunny days, by radiating heat away from the buildings and sending it directly into space.

Continue reading… “Stanford Engineers Invent High Tech Mirrors that Beam Light into Space”

Design flaw turns solar plant into a death trap for birds

bird

Super-concentrated sunbeams from BrightSource Energy Plant are deadly for birds flying overhead.

In February, the $2.2 billion BrightSource Energy Plant opened up in the Mojave Desert with good intentions: to harvest clean, sustainable solar power, by using 300 mirrors to reflect sunbeams onto a steam-producing water boiler. But a design flaw has turned the plant into a death trap for birds flying overhead.

 

 

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The Japan Aerospace Exploration Agency plans to build an orbiting solar farm

mirrors

Mirrors in orbit would reflect sunlight onto huge solar panels.

What if you could imagine looking at Tokyo Bay from high above and seeing a man-made island in the harbor, 3 kilometers long. There is a massive net stretched over the island and studded with 5 billion tiny rectifying antennas, which convert microwave energy into DC electricity. Also on the island is a substation that sends that electricity coursing through a submarine cable to Tokyo, to help keep the factories of the Keihin industrial zone humming and the neon lights of Shibuya shining bright.

 

 

Continue reading… “The Japan Aerospace Exploration Agency plans to build an orbiting solar farm”

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