So, I'm told that electron microscopy provides greater resolution than traditional photo/optical (i.e. visible light) microscopy, due to the (ahem) "fact" that "electrons are physically smaller than photons".. Which I'm pretty sure is not necessarily true, (or static/constant). But by the same token, I am not a physicist..
The analogy that I'm presented with is that in this context, the size (and density) of photons and/or electrons are supposedly comparable to pixels (and ppi/dpi) of an LCD monitor, CCD image sensor, raster image, etc.
So, it sounds plausible, and it's a nice, relatable explanation for the common man. But is it factual? If not, what's really going on here?