Preliminary Programme
Wednesday, August 21, 2019
14:00-14:15 Julia Ellinghaus/Volker Remmert (Bergische Universität Wuppertal): Welcome
14:15-15:00 Volker Remmert: Introduction
15:00-17:15 The Horologium Ahaz in Early Modern Science
Henrique Leitão (Universidade de Lisboa): A mathematical explanation of Horologium Ahas? Science and exegesis of the retrogradation of shadows
Brent Purkaple (University of Oklahoma): The Optics of Ahaz’s Sundial within the Optical Literature of the Jesuit Order
17:15-18:00 Josua Stopping the Sun
Evonne Levy (University of Toronto): Joshua Stopping the Sun in the Gesù of Rome
Thursday, August 22, 2019
09:00-11:50 Iconographic Contexts
Azucena Hernández (Universidad Complutense de Madrid): The sun reverses its course in front of an impossible solar eclipse: the frescoes on the Library of the Royal Site of El Escorial
Walter S. Melion (Emory University): The Prayer of Joshua and the Dial of Achaz: Paratactic Scriptural Illustration in the De Keyser, Vorsterman, and Van Liesveldt Bibles
11:00-11:50 Open session: Images of the Sun reversing its course in II Kings 20:8-11/Isaiah 38:8 (Horologium Ahas) and the Sun standing still in Joshua 10:12
11:50-16:10 Instruments
Andrew Morrall (Bard Graduate Center, New York): Christoph Schissler’s Horologium Ahaz Hydrographicum as Kunststück
Susanne Thürigen (Staatliche Kunstsammlungen Dresden): Pointing it out: Miracles of the Sun in Hans Gruber’s Astronomical table Clock of 1583
Denis Ribouillault (Université de Montreal): The Marvelous Staircases of Villa Pratolino “il celeste palazzo del sole”
16:10-16:30 Conclusions