IND-IIA-F015-I02
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Pièce
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1909
Fait partie de Photos, instruments, experimental results, brochure and sketches related to Evershed Effect.
This item was about the Sunspot spectra taken by John Evershed, where he discovered that there is a radial outflow of gases in a sunspot. This effect is now known as the "Evershed Effect".
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