The size of everything

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In this class we will go over the size of everything in the known universe from the insanely small to the bogglingly giganormous. But first let's start close to our own size so we've got an idea just how much it breaks our brains to think how small and big things can get.

plank length quanta, mesons, hadrons, photons, neutrons, electrons protons atoms molecules compounds cells, tissues organs systems being planet earth, spinning around its axis, revolving around the sun, revolving around center of the milky way galaxy in a supercluster of galaxies