"The Aurora of 1192: Its Causes and Effects"
By Lynn Nelson, text file.

The Astrolabe
An instrument.

Astronomy/Astrology
General note.

Bibliography of Medieval Medicine
Bibliography of sources for medieval medicine.

Medica
Society For The Study Of Healing In The Middle Ages.

Medieval Science Page
Links to Internet resources worldwide which deal with aspects of medieval science.

Medieval Technology Pages
Referenced information on technological innovation and related subjects in western Europe.

SCETI
Collection of images.

A Walk Through Time
The evolution of time measurement.