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Natural Science Forum / Physics / Particle Physics / February 2005Charge
One of the most fundamental concepts in science drives me insane: charge. What exactly is a charge? Has anyone been able to visually describe a charge? Why do different fundamental particles have different charges? Are they emitting some kind of force that interacts with another force in some way? It's frustrating. > One of the most fundamental concepts in science drives me insane: > charge. [quoted text clipped - 5 lines] > > It's frustrating. An interaction between two fermions (e.g. electrons or quarks) is the exchange of another particle, a boson (e.g. photons or gluons). The *strength* of that interaction is proportional to a quantity that lives on the fermion. That quantity is the charge. Every fermion has different charges corresponding to different interactions. E.g. quarks have electromagnetic charge, strong (color) charge, weak charge, and gravitational (mass) charge. The last may also be related to the Higgs charge. PD |
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