5 Accidental Discoveries That Changed The World

Published May 25, 2015
Updated November 7, 2023

Accidental Discoveries: X-Rays

X Ray Hands

Source: BG Fons

In 1895, German physicist Wilhelm Röntgen was doing some simple experiments with a cathode ray tube. At one point, he noticed that the tube was lighting a piece of fluorescent cardboard in the room even though there was a screen between them. Röntgen unsuccessfully tried to block the rays and eventually thought of sticking his hand in front of the tube, revealing the bones inside it. He had just discovered X-rays.

X Ray Rontgen

Wilhelm Röntgen won the first ever Nobel Prize in Physics in 1901 Source: Wikipedia

To be fair, others were aware of the effects of X-rays before Röntgen, but he was the one to study them systematically. He also gave them their name, even though they were referred to as Röntgen rays for decades following his discovery.

Accidental Discoveries X Ray

Anna Bertha Rontgen’s hand under x-ray Source: Nyam Center for History

Röntgen went to work on improving the imaging process by replacing the screen with a photographic plate so the images would be clearer. The first medical x-ray ever taken was of his wife’s hand, which Röntgen presented to the scientific community. Pretty soon x-ray technology became an international medicinal staple.

author
Savannah Cox
author
Savannah Cox holds a Master's in International Affairs from The New School as well as a PhD from the University of California, Berkeley, and now serves as an Assistant Professor at the University of Sheffield. Her work as a writer has also appeared on DNAinfo.
editor
John Kuroski
editor
John Kuroski is the editorial director of All That's Interesting. He graduated from New York University with a degree in history, earning a place in the Phi Alpha Theta honor society for history students. An editor at All That's Interesting since 2015, his areas of interest include modern history and true crime.
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Cox, Savannah. "5 Accidental Discoveries That Changed The World." AllThatsInteresting.com, May 25, 2015, https://allthatsinteresting.com/accidental-discoveries. Accessed April 26, 2024.