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  1. Cleomedes

    Posted in Refraction of Light.
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  2. Claudius Ptolemy

    Posted in Refraction of Light.
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  3. Willebrord Snell

    1580 – 1626

    Posted in -OPTICS, Lens, Refraction of Light.
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  4. Sir John Frederick William Herschel

    1792 – 1871

    Posted in - Innovation + Understanding, Astronomy, Botany, South Africa.
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  5. John Adams Whipple

    1822 – 1892

    Posted in Boston, Moon of Earth.
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  6. James Nasmyth

    1908 – 1890

    Posted in Fauxtography, Moon of Earth.
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