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Image: 1636 Daniel Schwenter - Deliciae Physico-Mathematicae (scioptic ball)

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1636_Daniel_Schwenter_-_Deliciae_Physico-Mathematicae_(scioptic_ball).jpg(400 × 361 pixels, file size: 35 KB, MIME type: image/jpeg)

Description: Illustration of a scioptic ball with a lens from Daniel Schwenter's Deliciae Physico-Mathematicae (1636)
Title: 1636 Daniel Schwenter - Deliciae Physico-Mathematicae (scioptic ball)
Credit: https://play.google.com/books/reader?id=EWM_AAAAcAAJ&printsec=frontcover&output=reader&hl=en_GB&pg=GBS.PA254
Author: Daniel Schwenter
Usage Terms: Public domain
License: Public domain
Attribution Required?: No

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