An optical experiment, by which a man and an angel demonstrate that the strength of a beam of light is not proportionate to the distance which it has travelled. Engraving by T. Galle, 1613, after P.P. Rubens.
- Rubens, Peter Paul, 1577-1640.
- Date:
- [1613]
- Reference:
- 578790i
Licence: Public Domain Mark
Credit: An optical experiment, by which a man and an angel demonstrate that the strength of a beam of light is not proportionate to the distance which it has travelled. Engraving by T. Galle, 1613, after P.P. Rubens. Wellcome Collection. Source: Wellcome Collection.