The buried wings of Bavaria

I was listening to  Dragons of the Air: An Account of Extinct Flying Reptiles by H. G. Seele and a vis source emerged. In Bavaria, near Solenhofen, there is a layer of white, lithographic limestone which is deep within the earth. It contains the bones of small wyverns, perhaps three feet across. Their wings contain…

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Two ways to defy maps

I was listening to Journeys to Baghdad by Charles S Brooks, and it reminded me of an idea I had for Ars Magica. In 1220 there are no modern, topographic maps. There are way-maps, which look, to me, a little like the route maps of subways, and there are portolans, which are sailing angles and…

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