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If you want to start a fire using sunlight, which kind of mirror would be most efficient
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If you want to start a fire using sunlight, which kind of mirror would be most efficient
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Oct 25, 2018
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If you want to start a fire using sunlight, which kind of mirror would be most efficient
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A concave mirror because a concave mirror can focus light rays to a point
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Oct 30, 2018
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