Zitat des Tages von Tom Wujec:
Why take notes? The obvious reason is to remember. Visual note-taking translates what we hear into pictures that give context, color, and meaning. By adding symbols, visual metaphors, likenesses of people, and room layouts, we add several dimensions.
An astrolabe is relatively unknown in today's world. But, at the time, in the 13th century, it was the gadget of the day. It was the world's first popular computer. And it was a device that, in fact, is a model of the sky.