«Ein yetlichs liecht reicht durch gerad linien so weyt sein streym lauffen. so aber ein undurchsichtiges ding fur das liecht wirt so stossen sich die streym daran ab, vnnd felt ein schatten so weyt die streym linien des liechtz verhalten werden.»
Every light radiates by means of straight lines, as far as its rays will reach. If an opaque surface is interposed, it will repel the rays of light and cast a shadow to the extent that the rays are held back.
Albrecht Dürer, Unterweisung der Messung.
Every light radiates by means of straight lines, as far as its rays will reach. If an opaque surface is interposed, it will repel the rays of light and cast a shadow to the extent that the rays are held back.
Albrecht Dürer, Unterweisung der Messung.
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