Willem Einthoven
Willem Einthoven (1860 – 1927) was a Dutch physician and physiologist. Invented the first practical electrocardiogram (ECG) in 1903
Willem Einthoven (1860 – 1927) was a Dutch physician and physiologist. Invented the first practical electrocardiogram (ECG) in 1903
Luigi Galvani (1737 - 1798) Italian obstetrician, surgeon and anatomist. Discovered the physiological action of electricity and demonstrated the existence of natural electric current in animal tissue - "the electrical forces in muscular movements" or the 'animal electricity'