In September 1816, Rene Laennec was on a walk where simply observing his environment caused him to make one of the greatest medical discoveries of his time

What he had seen were two boys playing with a long board. One of them had his ear to one end while the other boy scratched the other end with…

Continue ReadingIn September 1816, Rene Laennec was on a walk where simply observing his environment caused him to make one of the greatest medical discoveries of his time