New answers tagged numerics
We have observed that the underlying level of nature is quantum mechanical. Quantum means "a definite quantity" of something so definite quantities can be counted and so integral numbers play a role : a) in the number of particles , in the number of energy levels characterized by quantum numbers ( i.e. integer numbers).b) There are the fields which are ...
Generally speaking, particles are quantized: you have $0,1,2,3,4\dots $ of them. Even in quantum mechanics, you may not know how many you have, but if you measure it you will get a natural number. Most other quantities are real numbers and can take any real value. It is very hard to say why-some would say that is the definition of a particle.
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