A Useful Scientific Invention !
This is in a very old autograph book that has been in our family for many years. Drawn by an unknown person, in 1904, I was fascinated to find out that in 1895, X-Rays were accidently discovered by a German physicist, Wilhelm Conrad Rontgen. He was working with a cathode ray tube and found that when a high voltage was applied, the tube produced a fluorescent glow. He concluded that a new type of ray was being emitted, which could pass through most substances but not bones or metal. He then made the first X-Ray of his wife's hand. So this sketch was drawn not long after, a talking point no doubt. I like the idea of the mouse checking up on the whereabouts of the cat !
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- Canon PowerShot SX240 HS
- 1/60
- f/3.5
- 5mm
- 640
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