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Johann Heinrich von Mädler

astronomy
Johann Heinrich von Mädler and the First Accurate Map of the Moon

Johann Heinrich von Mädler and the First Accurate Map of the Moon

Tabea Tietz
On May 29, 1794, German astronomer Johann Heinrich von Mädler was born. He is best known for producing one of the first exact map of the Moon, the Mappa Selenographica. Johann Heinrich von Mädler – Early Years Mädler was born in Berlin, Germany, the son of a master tailor. At birth, however, he was so weak that it was feared that he could only survive for a few hours. Over the years his…
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astronomy
Ulugh Beg – the Mongolian Astronomer Prince

Ulugh Beg – the Mongolian Astronomer Prince

Tabea Tietz
On March 22, 1394, Mongolian astronomer, mathematician and sultan Mīrzā Muhammad Tāraghay bin Shāhrukh, better known as Ulugh Beg was (probably) born. Although the only important Mongol scientist, he was the greatest astronomer of his time. Pursuing this interest he built an observatory at Samarkand. In his observations he discovered a number of errors in the computations of the 2nd-century Alexandrian astronomer Ptolemy, whose figures were still being used. “Religions scatter like…
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