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James Jeans
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<p>Sir James Hopwood Jeans <a href="/facts/Member_of_the_Order_of_Merit/D5JqjT5G">OM</a> <a href="/facts/Fellow_of_the_Royal_Society/cWs8TdC5">FRS</a> (11 September 1877 – 16 September 1946) was an English <a href="/facts/Physicist/cQcgvSIm">physicist</a>, <a href="/facts/Mathematician/eaFSR8Fx">mathematician</a> and an <a href="/facts/Astronomer/ronF8j4a">astronomer</a>. He served as a secretary of the <a href="/facts/Royal_Society/KI5yXCuV">Royal Society</a> from 1919 to 1929, and was the president of the <a href="/facts/Royal_Astronomical_Society/FY4DbvNW">Royal Astronomical Society</a> from 1925 to 1927, and won its <a href="/facts/Gold_Medal_of_the_Royal_Astronomical_Society/tqPkmYHb">Gold Medal</a>. </p>