Certainly the most common and versatile astronomical instrument of your period of time was the astrolabe, a two-dimensional representation on the night sky. The origins on the instrument are actually lost, but an anecdote from your medieval time period playfully implies that, when Driving with a donkey sooner or later, https://findmyphone30123.develop-blog.com/35111088/rumored-buzz-on-usb-weather-station