Search results
24 wrz 2024 · Wilhelm Conrad Röntgen was a physicist who received the first Nobel Prize for Physics, in 1901, for his discovery of X-rays, which heralded the age of modern physics and revolutionized diagnostic medicine.
- Riccardo Giacconi
Ask the Chatbot a Question Ask the Chatbot a Question...
- Riccardo Giacconi
This was the first “röntgenogram” ever taken. In further experiments, Röntgen showed that the new rays are produced by the impact of cathode rays on a material object. Because their nature was then unknown, he gave them the name X-rays.
Wilhelm Conrad Röntgen (/ ˈ r ɛ n t ɡ ə n,-dʒ ə n, ˈ r ʌ n t-/; [4] German: [ˈvɪlhɛlm ˈʁœntɡən] ⓘ; 27 March 1845 – 10 February 1923) was a German mechanical engineer and physicist, [5] who, on 8 November 1895, produced and detected electromagnetic radiation in a wavelength range known as X-rays or Röntgen rays, an achievement that earned him the inaugural Nobel Prize in ...
In 1895, Wilhelm Röntgen studied cathode radiation, which occurs when an electrical charge is applied to two metal plates inside a glass tube filled with rarefied gas. Although the apparatus was screened off, he noticed a faint light on light-sensitive screens that happened to be close by.
First, almost all the laboratories had the cathode tubes to reproduce the experiment, and second, the excellent evidence that Röntgen had carefully collected, his “X-ray photographs”! By mid-January 1896, X-rays had taken the world by storm.
1 lis 2020 · In his studies of cathode rays Lenard came close to the detection of X-rays when he studied the properties of cathode rays. To determine the range in air he constructed a gas tube with a thin metal foil replacing the glass at the end of the tube (“ Lenard-window ”).
On November 8, 1895, Roentgen noticed that when he shielded the tube with heavy black cardboard, the green fluorescent light caused a platinobarium screen nine feet at away to glow — too far away to be reacting to the cathode rays as he understood them.
