![Evershed Effect](https://www.istampgallery.com/wp-content/uploads/2008/12/Evershed-Effect.jpg)
December 2, 2008
Evershed Effect
A commemorative postage stamp on Centenary of the Discovery of the Evershed Effect (Radial Flow of Gas across the Photospheric Surface of Sunspots) : Issued by India Issued on Dec 2, 2008 Issued for : India Post is proud to issue commemorative postage stamp on centenary of
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