I have been researching wave/particle duality, and I have trouble comprehending how electron microscopy actually exploits wave/particle duality to operate. From Wikipedia, " Wave–particle duality is exploited in electron microscopy, where the small wavelengths associated with the electron can be used to view objects much smaller than what is visible using visible light. Noted is the "small wavelengths associated with the electron" to achieve a much higher resolution than light, but why wavelength and not the very small size of the electron? What role does the wavelength (or just the concept of it acting as a wave) play in this? Is this implying that electron microscopy would not have existed if not for the discovery of wave/particle duality for matter (DeBroglie wavelengths, etc.)?