The first Nobel Prize for physics was awarded in 1901 to the German physicist who discovered a short-wave ray called the x-ray. In Europe, they refer to x-rays by his name. Who was he?

The German physicist Wilhelm Conrad Roentgen made a monumental discovery in 1895 that revolutionized medicine and earned him the very first Nobel Prize in Physics in 1901. While experimenting with cathode-ray tubes in his laboratory at the University of Würzburg, Roentgen noticed a fluorescent screen glowing even when the tube was shielded by opaque paper. This led him to deduce the existence of a new, unknown type of radiation, which he aptly named "X-rays."

His subsequent investigations revealed that these mysterious rays could pass through many solid substances, including human flesh, but not denser materials like bone or metal. He famously produced the first X-ray image, a photograph of his wife Anna Bertha's hand, clearly showing her bones and wedding ring. This groundbreaking image immediately highlighted the immense potential of X-rays for medical diagnostics, allowing doctors to visualize internal structures without surgery.

Roentgen's discovery was a scientific sensation, quickly replicated and applied worldwide. In recognition of his extraordinary service to science, he was awarded the inaugural Nobel Prize in Physics. True to his generous spirit, he refused to patent his discovery, believing its benefits should be freely available to all humanity, and even donated his Nobel Prize money to his university. Today, in many European countries, X-rays are still commonly referred to as "Röntgenstrahlen," honoring the man who first saw the invisible.