In 1665, nearly a decade before Leeuwenhoek published his letter describing animalcules in water, Robert Hooke, an English scientist and polymath, had also seen cells—although not live ones, and nowhere as diverse as Leeuwenhoek’s animalcules. As a scientist, Hooke, perhaps, was quite the opposite of Leeuwenhoek. He had been educated at Wadham College in Oxford, and his intellect ranged widely, foraging through different worlds of science and consuming whole realms as he moved. Hooke was not just a physicist but also an architect, a mathematician, a telescopist, a scientific illustrator, and a
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