First published as a special issue of the journal Medieval Encounters (vol. 23, 2017), this volume, edited by Josefina Rodriguez-Arribas, Charles Burnett, Silke Ackermann, and Ryan Szpiech, brings together fifteen studies on various aspects of the astrolabe in medieval cultures. The astrolabe, developed in antiquity and elaborated throughout the Middle Ages, was used for calculation, teaching, and observation, and also served astrological and medical purposes. It was the most popular and prestigious of the mathematical instruments, and was found equally among practitioners of various sciences and arts as among princes in royal courts. By considering sources and instruments from Muslim, Christian, and Jewish contexts, this volume provides state-of-the-art research on the history and use of the astrolabe throughout the Middle Ages. Contributors are Silke Ackermann, Emilia Calvo, John Davis, Laura Fernandez Fernandez, Miquel Forcada, Azucena Hernandez, David A. King, Taro Mimura, Gunther Oestmann, Josefina Rodriguez-Arribas, Sreeramula Rajeswara Sarma, Petra G. Schmidl, Giorgio Strano, Flora Vafea, and Johannes Thomann.

Historically, the idea that the stars and planets influence the Earth and its inhabitants has proved powerful in almost every culture, offering an important context for the use of mathematical and astronomical instruments. In the past, however, historians of astronomy have paid relatively little attention to astrology and other "non-scientific" topics, while historians of astrology have tended to concentrate on the analysis of texts rather than surviving artefacts, scientific instruments in particular. Heaven and Earth United is an attempt to redress the balance through an exploration of the astrological contexts in which instruments once found a place. Contributors are Silke Ackermann, Marisa Addomine, Jim Bennett, Marvin Bolt, Louise E. Devoy, Richard Dunn, Seb Falk, Stephen Johnston, Richard L. Kremer, Gunther Oestmann, Josefina Rodriguez-Arribas, Petra G. Schmidl, Giorgio Strano, and Sylvia Sumira.

During their active lives, scientific instruments generally inhabit the laboratory, observatory, classroom or the field. But instruments have also lived in a wider set of venues, as objects on display. As such, they acquire new levels of meaning; their cultural functions expand. This book offers selected studies of instruments on display in museums, national fairs, universal exhibitions, patent offices, book frontispieces, theatrical stages, movie sets, and on-line collections. The authors argue that these displays, as they have changed with time, reflect changing social attitudes towards the objects themselves and toward science and its heritage. By bringing display to the center of analysis, the collection offers a new and ambitious framework for the study of scientific instruments and the material culture of science. Contributors are: Amy Ackerberg-Hastings, Silke Ackermann, Marco Beretta, Laurence Bobis, Alison Boyle, Fausto Casi, Ileana Chinnici, Suzanne Debarbat, Richard Dunn, Inga Elmqvist-Soederlund, Ingrid Jendrzejewski, Peggy A. Kidwell, Richard Kremer, Mara Miniati, Richard A. Paselk, Donata Randazzo, Steven Turner.