Giant fresnel lens as a solar furnace
7 months ago
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13. Giant fresnel lens as a solar furnace
7 months ago
This video shows some quick demos of what you can do with a square meter or so of sunlight concentrated to 10,000 fold. The video shows a few simple things (melting a penny, burning wood) and then explains how you can cut a fine line in a piece of paper using the lens.
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