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1937 News Service Bull., School Ed. (Carnegie Inst. Washington) 24 Oct. 153/3 Bright flares of hydrogen light were visible on the Sun.

1937 News Service Bull., School Ed. (Carnegie Inst. Washington) 24 Oct. 153/3 It is believed that all of these fade-outs occur simultaneously with solar eruptions—absence of solar observations some times accounting for the failure of any astronomer to report observation of a flare.

1956 H. S. Jones in A. Pryce-Jones New Outl. Mod. Knowl. 121 A violent disturbance will not infrequently occur, in which a localized region of the Sun becomes intensely bright. Coincident with this eruption or flare, as it is termed, there is a sudden and complete fading on short-wave radio transmissions in channels passing over the sunlit face of the Earth.

1963 H. J. Smith & E. V. P. Smith Solar Flares p. xii Flares occur in the solar atmosphere and are closely associated with sunspots and other aspects of solar activity.

1938 Nature 17 Sept. 500/2 It would..scarcely be permissible to deduce from the single observation of Carrington..that the three phenomena, solar flare, radio fade-out and..magnetic disturbance, were associated.

1957 Pract. Wireless 33 722/1 Solar flares are shortlived, sudden increases in the intensity of the surface brightness in the neighbourhood of sunspots.

1979 C. Kilian Icequake vii. 120 Your plane's electronics go bonkers now and then when another solar flare hits.