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0:27
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Resonate369
593 reactions · 44 shares | This is a 4-inch parabolic mirror it...
Resonate369. Resonate369 · Original audio. This is a 4-inch parabolic mirror it doesn’t magnify light. It concentrates it. Under the mid-day sun, it gathers about 8 watts of solar power into a single, razor-sharp focal point around 5 to 6 watts of pure thermal energy, hot enough to ignite wood or paper in seconds. Compare that to a 4x4-inch ...
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