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RT @jslbutler: @stevenstrogatz Prof Crane then wrote it up a few years later (1970) as a short paper which has now been cited a few thousan…
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@stevenstrogatz Prof Crane then wrote it up a few years later (1970) as a short paper which has now been cited a few thousand times and is still one of the few exact solutions. When he spoke to me about it he was very modest and laughed about he included