Inventions & Devices of the Middle Ages

DaVinci Inventions
25 thumbnails of devices invented or improved upon by da Vinci in practice or theory are provided at the Stevens Institute of Technology, each accompanied by a concise explanation and linking to a larger image.

Epact
This online catalog of all the medieval and renaissance scientific instruments in four European museums includes at least one photo for each entry and fairly extensive information. Also includes a glossary, a bibliography, and explanatory articles. An absolutely marvelous resource, not to be missed.

The Geometry of War: Section Summaries
Links to hundreds of photos of and background information on weapons and technological devices used in sixteenth- and seventeenth-century warfare.

Matteo Ricci: The Art of Printing
Observations of the sixteenth-century scientist on the advanced technology of Chinese printing, provided by Paul Halsall.

A Revolution in Timekeeping
This segment of A Walk through Time by the National Institute of Standards and Technology follows the development of mechanical clocks in Europe from the early 14th century onwards.

A Treatise on the Astrolabe
Chaucer's unfinished work is the first "technical manual" in the English language. Presented at the Art-Bin site.