Död 1696.
Holländsk matematiker. För firman van Keulen (se denne) utarbetade han under 1690-talet ett sjökartverk. 'De nieuwe groote lichtende Zee-Fakkel' som senare kom i flera upplagor. På titelbladet kallar han sig 'Geometra en Leermester der Wiskunst'.
Bland arbeten.
De nieuwe groote lichtende Zee-Fakkel.
Phillips.
Frisius, Gemma. [Reinerszoon, Jemme.]
9 december 1508 - 25 maj 1555.
Gemma Frisius was a physician, mathematician, cartographer, philosopher, and instrument maker. He created important globes, improved the mathematical instruments of his day and applied mathematics in new ways to surveying and navigation.
Frisius was born in Dokkum, Friesland (present-day Netherlands) of poor parents, who died when he was young. He moved to Groningen and studied at the University in Leuven beginning in 1525. He received the degree of MD in 1536 and remained on the faculty of medicine in Leuven for the rest of his life. His oldest son, Cornelius Gemma, edited a posthumous volume of his work and continued to work with Ptolemaic astrological models.
While still a student, Frisius set up a workshop to produce globes and mathematical instruments. He became noted for the quality and accuracy of his instruments, which were praised by Tycho Brahe, among others. In 1533, he described for the first time the method of triangulation still used today in surveying. Twenty years later, he was the first...
Bland arbeten.
(Cosmographia (1529) von Petrus Apianus, annotated by Gemma Frisius)
De principiis astronomiae et cosmographiae (1530)
De usu globi (1530)
Libellus de locorum describendorum ratione (1533)
Arithmeticae practicae methodus facilis (1540)
De annuli astronomici usu (1540)
De radio astronomico et geometrico (1545)
De astrolabio catholico (1556)
1851-1914.
Norsk ingenjör. 1874 fick han anställning som ingenjör vid 'Vassdragsvesenet' där han sedan verkade. Han deltog mycket i mätningsarbeten över hela Norge och utförde ett grundläggande undersökningsarbete vid förberedelserna av Bandakkanalen. Förutom Norgekartor gav han även ut specialkartor över Bandak-Nordsjökanalen samt över sträckan Christiania-Bergen.
T U. 1914. - U.B.
Vägvisare för XI Olympiaden i Berlin - 1936
Hortus Eystettensis - Basil Besler 1613.
