Fakta
A graphite disk resting on carbon foam collects sunlight to heat water directly to steam with 85 percent efficiency. Cynthia Graber reports
Learn more about your ad choices. Visit megaphone.fm/adchoices
Release date
Lydbog: 4. august 2014
Fakta
A graphite disk resting on carbon foam collects sunlight to heat water directly to steam with 85 percent efficiency. Cynthia Graber reports
Learn more about your ad choices. Visit megaphone.fm/adchoices
Release date
Lydbog: 4. august 2014
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