--- title: "Wilhelm Röntgen spotted X-rays in a darkened German lab on November 8, 1895, thanks to a glowing screen" url: https://badiyaa.com/wilhelm-rontgen-x-rays-november-8-1895/ published: 2026-11-09T02:20:00+00:00 modified: 2026-11-09T02:20:00+00:00 section: History publisher: Badiyaa --- # Wilhelm Röntgen spotted X-rays in a darkened German lab on November 8, 1895, thanks to a glowing screen The Würzburg physicist named the rays after the unknown in algebra, published within 50 days, refused to patent them and won the first Nobel Prize in Physics in 1901. A faint shimmer on a bench in a darkened room in Würzburg, Germany, opened the way to seeing inside the living body. It was late on Friday, November 8, 1895, and [Wilhelm Röntgen](https://en.wikipedia.org/wiki/Wilhelm_R%C3%B6ntgen) had just wrapped a glass discharge tube in black cardboard so that no light could escape. Something escaped anyway. The 50-year-old physics professor had only meant to check that his cover was light-tight before the real experiment. Then he caught the glimmer, some distance from the tube. He fired the apparatus again, and the glow came back each time. A struck match showed the source: a small screen coated in barium platinocyanide, sitting where he had left it for the next step. Whatever was lighting the screen was getting through the cardboard. The screen would still fluoresce when it was as far as two meters, about six and a half feet, from the tube. ## Why he called it X Röntgen did not know what he had found, so he named it the way a mathematician names an unknown. He stayed with the problem for weeks, eating and sleeping in the lab. At one point he held a piece of lead in the beam to test how well it stopped the rays, and saw his own skeleton flicker on the screen. About six weeks after the first glow, he made a plate of his wife Anna Bertha’s hand, with the shadow of her ring on one finger. Her reported reaction has followed the picture ever since: “I have seen my death!” ## From bench to newspaper in 58 days The news moved fast by the standards of 1895. Counting forward from that Friday: - **Day 0, November 8:** the first glow on the screen. - **Day 50, December 28:** his paper, “On a New Kind of Rays,” is published. - **Day 58, January 5, 1896:** an Austrian newspaper reports the discovery. - **Six years on, 1901:** he receives the first Nobel Prize in Physics. The excitement spread through physics immediately. Henri Becquerel went looking for a link between the new rays and phosphorescence, and found radioactivity in 1896, which set Marie and Pierre Curie on their own course. ## The man who would not cash in Röntgen refused to patent anything connected with X-rays, wanting the public to benefit freely. Shy of speaking in public, he declined to give a Nobel lecture. His official Nobel biography describes a modest, reticent man who built much of his own equipment and preferred to work without an assistant. He also left a smaller paper trail than historians would like. Under the terms of his will, nearly all of his personal and scientific correspondence was destroyed after his death in 1923, leaving historians few of his own words about that November evening. His name stayed anyway. German and several Central and Eastern European languages still use a word built on his name for an X-ray. Element 111, roentgenium, was named for him in 2004. And November 8, the date of that shimmer, has been marked since 2012 as World Radiography Day. This week brought the 131st anniversary. ## Further reading - [Wikipedia: Wilhelm Röntgen](https://en.wikipedia.org/wiki/Wilhelm_R%C3%B6ntgen) *Image: Unknown photographer, Public domain via Wikimedia Commons* *This article was produced with AI assistance and reviewed by our Editorial Desk. [How we work](https://badiyaa.com/editorial-policy/).*