A slot car (sometimes, slotcar) is a powered miniature auto or other vehicle that is guided by a groove or slot in the track on which it runs.
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The muon is a fundamental particle that is part of the Standard Model of particle physics. It is a type of lepton particle, similar to the electron but with a heavier mass.The mass of a muon is about 105.7 MeV/ c 2, which is about 200 times the mass of an electron. It also possesses a negative charge and a spin of 1/2.t is a type of lepton particle, similar to the electron but with a heavier mass. The mass of a muon is about 105.7 MeV/ c 2, which is about 200 times the mass of an electron. It also possesses a negative charge and a spin of 1/2.