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Cake day: July 21st, 2023

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  • You could build a sun powered Dye laser. Dye lasers are capable of absorbing polychromatic light and emitting monochromatic light.

    You could split the sunlight up into its various wavelengths with a prism and then run each wavelength through a specific dye to get more of some specific wavelength of light that is optimal for your task. Mostly just because it’d look cool tho.