The
solar mirrors that
BrightSource Energy is mounting on trackers in California’s Mojave
Desert run 7.2 meters by 10.5 meters. That’s hundreds of times larger
than a new kind of tiny solar mirror that energy tinkerer Saul Griffith
is working on, which stretches no bigger than 5 centimeters by 5
centimeters and is meant to sit on little tubular trackers that are no
taller than a toothpick.
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