Archive for the 'Magnes' Category

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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Stone Stories

Monday, February 21st, 2011

Protocompass (swimming), Petrus Peregrinus (possibly around 1269), Epistula de magnete*, Fig. 1, Detail (p. 83).

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Dry Compass

Wednesday, February 16th, 2011

Georg Agricola (1494–1555), Vom Bergwerck (Basel: Jeronymus Froben und Niclausen Bischoff, 1557), Zentralbibliothek Zürich, Alte Drucke und Rara, ZB Res 321, p. 31.

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Instruments (Holding a Globe)

Wednesday, February 16th, 2011

Peter Apian, Instrumentum Primi Mobilis (Nürnberg: Johann Petreius, 1533), Zentralbibliothek Zürich, Alte Drucke und Rara, RX 49, title.

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Dry Compass

Wednesday, February 16th, 2011

Georg Agricola (1494–1555), Vom Bergwerck (Basel: Jeronymus Froben und Niclausen Bischoff, 1557), Zentralbibliothek Zürich, Alte Drucke und Rara, ZB Res 321, Title.

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Tuesday, February 15th, 2011

Barbara Ellmerer

The Hidden Dimension of Dürer

Monday, February 14th, 2011

Albrecht Dürer, Etliche Underricht zu Befestigung der Stett, Schloss und Flecken, in: Opera (Arnhem; Johann Jansen, 1604), Zentralbibliothek Zürich, Alte Drucke und Rara, ZB XXII, Title.

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Saturday, February 12th, 2011

Barbara Ellmerer

Perpetual Motion Machine

Saturday, February 12th, 2011

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Thursday, February 10th, 2011

Barbara Ellmerer