Eyes and lenses compared. This diagram is from the 1630 edition of the work 'Rosa Ursina',by the German Jesuit astronomer Christoph Scheiner. Scheiner was the co-discoverer of sunspots and published his work in 'Rosa Ursina',which became the standard treatise on the subject for more than a century. The work contained numerous observations and also a detailed account of his methods and apparatus. Here,he is comparing natural and artificial lenses | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Royal Astronomical Society |
Bildgröße: | 3887 px × 4387 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |