Epact: Scientific Instruments of Medieval and Renaissance Europe
Epact is an electronic catalogue of medieval and renaissance scientific instruments from four European museums: the Museum of the History of Science, Oxford, the Istituto e Museo di Storia della Scienza, Florence, the British Museum, London, and the Museum Boerhaave, Leiden. Together, these museums house the finest collections of early scientific instruments in the world.
Thanks for Mirabilis.ca for the link
Medieval sea chart was in line with current thinking
“The 16th-century Carta Marina, complete with sea monsters, gives an accurate location for dangerous eddies.
Roger Highfield reports A satellite image of the north-east Atlantic has revealed that medieval cartographers knew much more about ocean currents than was thought…”