Rheticus

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Rheticus

(Georg Joachim von Lauchen) (rā`tēko͝os, gā`ôrk yōä`khĭm fən lou`khən), 1514–76, German astronomer, mathematician, and first disciple of Copernicus. In 1540 he printed a summary of heliocentric ideas in the Narratio prima and in 1542 supervised publication of the trigonometric sections of Copernicus's masterpiece De revolutionibus. He subsequently persuaded Copernicus to publish (1543) the entire work. To mathematics he contributed Opus palatinum de triangulis, in which for the first time trigonometric functions were related to angles rather than to the arcs of circles.
References in periodicals archive ?
Georg Joachim Rheticus (1514-1574), a mathematician from Feldkirch in Vorarlberg, continues to enjoy modest, but enduring fame for his involvement in the great cosmological revolution that has made the mid-sixteenth century such a popular period for historians of astronomy.
Sobel describes the events preceding the publication of Copernicus' theory, and along the way the reader meets German mathematician Georg Joachim Rheticus, a Lutheran.
The first Copernican; Georg Joachim Rheticus and the rise of the Copernican Revolution.
When Nicolaus Copernicus found Georg Joachim Rheticus at his door the visit turned into three years of work on De revolutionibus, in which Copernicus proved the earth and planets rotated around the sun.
The copy inscribed and presented by Georg Joachim Rheticus (1514-74), Copernicus' first disciple, who initially oversaw the publication of his opus, noted that its original title had been modified and an anonymous foreword, affirming the immobility of the Earth, had been inserted.
It might have gone to the grave with him but for the intervention of Georg Joachim Rheticus, a young professor who tracked down the reclusive Copernicus at a time when the astronomer, a cleric, was in trouble.
THE FIRST COPERNICAN: Georg Joachim Rheticus and the Rise of the Copernican Revolution DENNIS DANIELSON