About Meghnad Saha
Meghnad Saha was an Indian astrophysicist and politician who helped devise the theory of thermal ionisation. His Saha ionisation equation allowed astronomers to accurately relate the spectral classes of stars to their actual temperatures. Saha also invented an instrument to measure the weight and pressure of solar rays. The Saha Institute of Nuclear Physics, founded in 1943 in Kolkata, is named after him. He founded the journal Science and Culture and was the editor until his death.
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