Category Archives: Uncategorized

Quantum electrodynamics: second order processes

Quantum electrodynamics: second order processes Advertisements

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Quantum electrodynamics: no first-order processes are possible

Quantum electrodynamics: no first-order processes are possible

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Local gauge invariance leading to quantum electrodynamics

Local gauge invariance leading to quantum electrodynamics

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NGC 185

NGC 185 (Dwarf spheroidal galaxy in Cassiopeia)

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NGC 6934, 7006, 7015

NGC 6934 (Globular cluster in Delphinus) NGC 7006 (Globular cluster in Delphinus), PGC 65907 NGC 7015 (Spiral galaxy in Equuleus)

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NGC 6956, PGC 65281, PGC 65293 (galaxies)

NGC 6956 (Spiral galaxy in Delphinus)

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M15 & NGC6997

M15 (Globular cluster in Pegasus) NGC 6997 (Open cluster in Cygnus)

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