Santiago Ramón y Cajal's ink and pencil drawing of injured Purkinje neurons, created in 1914. (Courtesy of Instituto Cajal) Are our brains beautiful? Not just figuratively, for what they can do, but ...
The lowly pencil is not an elite or showy artistic medium. It doesn't have oil paint's gravitas, or plaster's endearing gauche. Instead, the pencil is accessible, plebeian and utilitarian. If put in ...
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