liquid sunlight
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Liquid sunlight creates heat on demand
At the Chalmers University of Technology in the Swedish city of Gothenburg, scientists have created a specialized liquid that can absorb solar energy and store it for as long as 18 years as a thermal fuel. The fluid works like a rechargeable battery, but instead of electricity, sunlight goes in and heat comes out when it's needed.
00:59 - Source: CNN Business
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