Wilhelm Conrad Röntgen (or Roentgen), the discoverer of X rays, on December 22, 1895, in Wurzburg, Germany. After making an X-ray radiograph of human anatomy, showing the bones of a woman’s hand. Sent the radiograph to Franz Exner a physicist in Vienna, Austria. It is traditionally assumed that Röntgen X-ray of his wifes hand, how ever Röntgen did not label it himself.
December 22, 1895
Wilhelm Conrad Röntgen
- X-ray – Wikipedia
X-rays make up X-radiation, a form of electromagnetic radiation. Most X-rays have a wavelength ranging from 0.01 to 10 nanometers, corresponding to frequencies in the range 30 petahertz to 30 exahertz (3×1016 Hz to 3×1019 Hz) and energies in the range 100 eV to 100 keV.
- Dream Anatomy: Gallery: The First X-ray – National Library of Medicine
The hand of Mrs. Wilhelm Roentgen: the first X-ray image, 1895. In Otto Glasser, Wilhelm Conrad Röntgen and the early history of the Roentgen rays. London, 1933. National Library of Medicine.
- History of X-ray Imaging – Sunnybrook Hospital
Dr. Willem Roentgen’s discovery of X-rays in late 1895, in Wurtzburg, Germany, serves as a classic example of an accidental invention.