George Biddell Airy

Edward Walter Maunder and the Sunspots

Edward Walter Maunder and the Sunspots

On April 12, 1851, British astronomer Edward Walter Maunder was born. Maunder was the first to take the British Civil Service Commission examination for the post of photographic and spectroscopic assistant at the Royal Observatory, Greenwich. He is best remembered for his study of sunspots and the solar magnetic cycle that led to his identification of the period from 1645 to 1715 that is now known as the Maunder Minimum. “If we…
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The Astronomical Achievements of Sir George Biddell Airy

The Astronomical Achievements of Sir George Biddell Airy

On July 27, 1801, English mathematician, astronomer, and Astronomer Royal George Biddell Airy was born. His many achievements include work on planetary orbits, measuring the mean density of the Earth, a method of solution of two-dimensional problems in solid mechanics and, in his role as Astronomer Royal, establishing Greenwich as the location of the prime meridian. George Biddell Airy showed talents in mathematics very early at school and it is believed that he studied for instance arithmetic, double-entry book keeping and how to…
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