Word: convolutionsâ
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This curiosity about his own brain, and his grave sense of responsibility and hope for its products, would be understandable enough if only for its most recent series of convolutions???the experiments in which he planned, built and flew the world's first really workable helicopter,* and more recent work in which he has helped bring the device to its present state of windmilling efficiency. Today, at 64, he is not only an honored pioneer of the brave, oil-spattered world of pre-Sarajevo aviation but also the paramount prophet of a completely new era of flight...
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