Part 1 of 5 · freeIntroduction
On 8 November 1895, in Würzburg, Germany, the physicist Wilhelm Röntgen noticed a screen glowing even though no visible light was reaching it. Something invisible was crossing the room.
He called it X-rays, the “X” standing for “unknown.” Within weeks he had photographed the bones of his wife's hand. Radiology was born.
The rest is in the Sophia app.The remaining parts, the open-book quiz and the full glossary. Free to start; Premium unlocks everything.
- 2An accident in the laboratory
- 3Medicine seizes the new tool
- 4A danger ignored for decades
- 5The legacy
Open-book quiz8 questions whose answers are in the text.
Glossary12 terms explained in a tap.
30 languagesThe same course, from French to Japanese.
