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)
Se Dahlstierna.
1804-1837.
Storskifteslantmätare, verksam i Dalarna.
Bland arbeten.
Charta öfver Aspeboda socken uti Stora Kopparbergs län [Kartografiskt material] / afmätt åren 1806, 1807 & 1808 af dertill förordnade landtm:re ; transporterad och copierad år 1831 af A.G. Théel
Charta öfver Thorsångs socken i Stora Kopparbergs län [Kartografiskt material] / ifrån en af landtm. C.P. Nyrén uppgord charta transporterad... af A.G. Théel
Jerna socken uti Stora Kopparbergs län och Wäster Dahlarne [Kartografiskt material] / ifrån storskifteskartan transporterad af A.G. Théel
Leksands socken uti Nedan Siljans fögderi af Stora Kopparbergs län [Kartografiskt material] / ifrån storskiftes mätningarne transporterad af A.G. T[hée]l
Äppelbo socken uti Stora Kopparbergs län och Wäster Dahlarne [Kartografiskt material] / ifrån storskiftes chartan transporterad... af A.G. Théel
Amiral Häggs flaggkarta. - Stockholm 1888.
Dyborre, Stratiotes aloides - Lindman, C. A. M, Bilder ur Nordens Flora 1917-26.
