Archive for the 'Instrument/Pointer' Category

Thursday, March 3rd, 2011

Measuring

Monday, February 28th, 2011

Leonhard Zubler, goldsmith and instrument maker in Zurich (1563-1609) used the magnetic needle for geographic measuring. See: Albert Kloss, Geschichte des Magnetismus (Berlin: vde, 1994), S. 92, here presentation of a new instrument, Leonhart Zubler, Kurtzer und gruntlicher Bericht von dem neüwen geometrischen Instrument oder Triangel, auss einem Thurn alle Tieffe, Weytte und Höche zu messen: mit etlichen Kupfferstucken darbey / durch Leonhart Zubler, Burger und Goldschmid zu Zürych (Zürych: Rudolff Weyssenbach, 1603), Zentralbibliothek Zürich, Alte Drucke und Rara, 18.564,2, Title.

Saturday, February 26th, 2011

Saturday, February 26th, 2011

Barbara Ellmerer

Headfarm: A Discussion on Globes, Pointers, Stones

Friday, February 25th, 2011

Determing the circumference of the earth by measuring the different angles of a star appearing above Bale and Cologne. Sebastian Münster, Cosmographia (Basel: Henricus Petrus, 1544), Zentralbibliothek Zürich, Alte Drucke und Rara, Res 121, p. 5.

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Thursday, February 24th, 2011

Judith Albert

Thursday, February 24th, 2011

Barbara Ellmerer

Thursday, February 17th, 2011

Barbara Ellmerer

Sunday, February 6th, 2011

Judith Albert

Friday, January 14th, 2011