‎Understanding the Marvels of Medieval Technology - Apple TV

EPISODE 1

Technological Development in the Middle Ages

Visit Trim Castle, a 12th-century fortress in Ireland that has an ingenious fortified gateway called a barbican—a feature emblematic of the surprising sophistication of medieval technology. Starting with this intriguing structure, Professor Ressler introduces the wide range of technologies covered in this course. As background, he gives a virtual tour of the Middle Ages.

35m
EPISODE 2

Advances in Agricultural Technology

Explore four celebrated agricultural innovations of the Middle Ages: the heavy plow, the open-field system, three-field crop rotation, and the horse collar. Did they, in fact, lead to a surge in food production, as often argued, resulting in population growth, increased commerce, and general prosperity? Professor Ressler explains these technologies and critically examines their effectiveness.

33m
EPISODE 3

Textile Technology: From Twill to Tapestry

Textile manufacturing helped drive the commercial revolution of the High Middle Ages. Delve into the technologies that made this thriving industry possible. Most medieval techniques for spinning, weaving, and finishing were inherited from the ancient world and Asia, but incremental improvements increased their efficiency and produced high-quality fabrics on an unprecedented scale.

35m
EPISODE 4

Metallurgy and Ironmaking

The production of inexpensive, high-quality iron was essential to nearly every form of medieval technology. Discover how medieval artisans produced the three basic forms of iron: wrought iron, cast iron, and steel. Weigh the advantages and drawbacks of each and chart the evolution of processes for smelting iron ore at ever higher temperatures, culminating in the development of blast furnaces.

32m
EPISODE 5

Waterpower Systems

Arguably, the chief glory of the Middle Ages was waterpower, harnessed via waterwheels to grind grain, saw wood, hammer iron, pump water, and replace human labor in countless other ways. Study the physics of flowing water and its conversion to mechanical energy. Then examine three key waterwheel designs—horizontal, undershot, and overshot—each with distinctive strengths and limitations.

31m
EPISODE 6

Boat Mills, Tidal Mills, and Windmills

Learn how medieval engineers harnessed waterpower in challenging environments with boat mills and tidal mills. Then explore the windmill, a true medieval invention that masterfully merged nautical technology with milling machinery. Focus on two types of windmills: the post mill, called the medieval era’s most original contribution to power-production technology, and the sturdier tower mill.

31m

Stephen Ressler

Host