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  1. Math

    Art of the Grid

    The practice of laying a grid on top of a drawing, then painstakingly copying each line of the drawing to the corresponding cell of a blank grid seems old-fashioned in these days of pervasive photocopying and electronic image manipulation. Nonetheless, the underlying idea of transferring information from one grid to another has a long history […]

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  2. 19306

    Your article ends with the claim that “a color-blind person and a noncarrier have no chance of having a color-blind child.” Yet as I recall from basic biology class, color blindness is considered a prime example of a sex-linked trait, which makes the above statement untrue. Carried on the X chromosome, the trait would manifest […]

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  3. 19305

    This article is somewhat misleading.