I have a question about the entities in scientific theories and models. The status of some of these objects seems intuitive. Frictionless planes, for example, though they don't exist, seem helpful enough as an abstraction for understanding how actual planes function.
My question is about entities which we (non-scientists) know only through the prism of scientific theory--say, photons or electrons. I know what light and electricity are, on some immediate level, through my everyday experience of these phenomena. But I don't know what to make of the entities that physics tells me compose them. My inclination is to take them as "real", not just convenient notions of the purpose of theorizing and mathematical models. I can't help pictures these tiny, planet-like spheres whizzing around. I know there's something importantly wrong about that image, but I'm not sure what. Furthermore, scientists still talk about particles "spinning" and so forth, I am unable to see in what sense this is an analogy in the way...