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[[Image:Wolf rayet2.jpg|thumb|right|Hubble Space Telescope image of nebula M1-67 around Wolf–Rayet star WR 124.]] ...cs/ask_astro/answers/980603a.html |title=Ask an astrophysicist: Wolf-Rayet Stars |last=Cannizzo J.K. 1998 |work=Nasa.gov }}</ref> ...

'''Quantum mechanics''' ('''QM''') is the part of [[physics]] that tells how the [[subatomic particle|things that make up ato ...f modern [[physics]] and [[chemistry]]. Quantum mechanics helps make sense of the smallest things in nature like [[proton]]s, [[neutron]]s and [[electron ...