Posts tagged with "Standard Model":

Three Quarks for Hadron Mark

All the matter that is around you is made up of atoms. That's a pretty well-known fact at this point, and, while it gets increasingly interesting and strange the more you think about it (the properties of each different element are just functions of how many protons it has, which is pretty wild), an atom is not the fundamental unit of matter, as its name, derived from the Greek atomos, which means indivisible, would suggest. No, the physicist John Dalton disabused us of that notion back in the 1800s, and since then we have learned that an atom consists of three constituent particle types: protons, neutrons, and electrons. Hans Geiger, Ernest Marsden, and Ernest Rutherford came up with the model of an atom with those pieces (as covered in the very first Fizzix Phriday blog post), and that most of the mass of an atom...

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