Page 323 - 89 history of astronomy_opt

Senior Wrangler at Cambridge, and was free
to undertake the research which as an un-
dergraduate he had set himself–to see whether
the disturbances of Uranus could be explained
by assuming a certain orbit, and position
in that orbit, of a hypothetical planet even
more distant than Uranus. Such an expla-
nation had been suggested, but until 1843
no one had the boldness to attack the prob-
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