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Radio Observations during the Total Solar Eclipse of Aug. 31

Nature volume 130, pages 385388 (10 September 1932) | Download Citation



THE radio observer of eclipse phenomena is subject to one important limitation which at once denies him the most spectacular successes and safeguards him from the most acute disappointments of the optical observer. He cannot make direct observations on the solar phenomena, but is restricted to a sort of indirect photometry of the ionosphere, a region already subject to such wide and ill-understood variations that no completely conclusive determinations are likely and no fully satisfactory control observations possible. At best, then, the agreement between the temporal sequence of radio phenomena and the sequence predicted from theories of the media will give strong support to one of the competing theories; at worst, a correlation of substantial magnitude will be submerged in random variations.


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