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@astroHDE If you want to read more, you can check out Sullivan 1991 (https://t.co/jE4u02eB5R), Bolton & Slee 1953 (https://t.co/u9t0OcS0op), or Chapter 13 of "Joe Pawsey and the Founding of Australian Radio Astronomy" (https://t.co/Jfsp1wBZ0B).