Basil Mahon Quote

Most creative scientists, even the most prolific and versatile, produce one theory per subject. When that theory has run its course they move on to another topic, or stop inventing. Maxwell was unique in the way he could could return to a topic and imbue it with new life by taking an entirely fresh approach. To the end of his life there was not one subject in which his well of inventiveness showed signs of exhaustion. With each new insight he would strengthen the foundations of the subject and trim away any expendable superstructure. In his first paper on elctromagnetism he had used the analogy of fluid flow to describe static electric and magnetic effects. In the second he had invented a mechanical model of rotating cells and idle wheels to explain all known electromagnetic effects and to predict two new ones, displacement current and waves. Evem the most enlightened of his contemporaries thought that the next step should be to refine the model, to try to find the true mechanism. But perhaps he was already sensing that the ultimate mechanisms of nature may be beyond our powers of comprehension. He decided to put the model on one side and build the theory afresh, usingonly the principles of dynamics: the mathematical laws which govern matter and motion.