Researched
Electrocardiogram
Willem Einthoven's string galvanometer recorded the heart's electrical signal from the skin in 1903, revealing rhythm disorders and heart attacks.
Open in the interactive tree →Einthoven won the 1924 Nobel Prize. The ECG is still one of the most common medical tests, and it guided the invention of the pacemaker.
Prerequisites
- Nerves run on electricity1791
- Electromagnetism1831-1865
Unlocks
- EEG1924Berger recorded brain waves with a galvanometer, the instrument Einthoven made sensitive for the ECG
- Cardiac pacemaker1958
- AI in medical diagnosis2018–2026AI reading of ECG traces is one of the widest-used medical AI tools