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Best 21CM Line

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Rankings use category fit, feature coverage, pricing signals, public reception, and recency. Affiliate relationships do not affect scores.

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Best 1 Edward Mills Purcell

Edward Mills Purcell was an American physicist who spent his career at Harvard University. He is recognized for his independent discovery of nuclear magnetic resonance in liquids and solids, a breakthrough that earned him a shared Nobel Prize in Physics in 1952. In 1951, Purcell and his student Haro...

2 Harold Ewen

Harold Irving Ewen was an American physicist recognized for his contribution to early radio astronomy. While a graduate student at Harvard University in 1951, he partnered with his advisor, Edward Mills Purcell, to detect the 21-centimeter hydrogen line. Using a custom-built horn antenna, they obser...

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