How the ECG Machine Let Us Listen to the Heart: A 1903 Breakthrough
In 1903, Dutch physiologist Willem Einthoven transformed medicine by inventing the electrocardiogram (ECG). Using a string galvanometer the size of…
The Machine That Gave Kidneys a Second Chance
In the 1940s, patients with kidney failure had no hope — until a Dutch doctor named Willem Kolff built the…
The Discovery of Insulin: The Breakthrough That Saved Millions
Before 1921, a diagnosis of diabetes was a death sentence. But that all changed when Dr. Frederick Banting and Charles…
The Accidental Discovery That Gave Us the Pacemaker
Did you know the life-saving pacemaker was discovered… by accident? In 1956, engineer Wilson Greatbatch was building a heart recording…