The most powerful formula in physics starts with a slender S, the symbol for a sort of sum known as an integral. Further along comes a second S, representing a quantity known as action. Together, ...
Classical physics suggests that objects move along a single, well-defined path. Quantum mechanics says something far stranger: particles explore every possible path simultaneously. According to ...
Irrespective of what he got right and what he got wrong in his famous 1959 lecture, Richard Feynman's vision and imagination have had an important role in the development of nanoscience and ...
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