The Library of Congress classification for physics is QC. More specifically, QC is broken down as follows:
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QC1-999 Physics
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QC1-75 General
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QC81-114 Weights and measures
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QC120-168.85 Descriptive and experimental mechanics
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QC170-197 Atomic physics. Constitution and properties of matter Including molecular physics, relativity, quantum theory, and solid state physics
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QC221-246 Acoustics. Sound
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QC251-338.5 Heat
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QC310.15-319 Thermodynamics
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QC350-467 Optics. Light
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QC450-467 Spectroscopy
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QC474-496.9 Radiation physics (General)
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QC501-766 Electricity and magnetism
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QC501-(721) Electricity
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QC669-675.8 Electromagnetic theory
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QC676-678.6 Radio waves (Theory)
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QC701-715.4 Electric discharge
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QC717.6-718.8 Plasma physics. Ionized gases
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QC750-766 Magnetism
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QC770-798 Nuclear and particle physics. Atomic energy. Radioactivity
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QC793-793.5 Elementary particle physics
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QC794.95-798 Radioactivity and radioactive substances
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QC801-809 Geophysics. Cosmic physics
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QC811-849 Geomagnetism
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QC851-999 Meteorology. Climatology Including the earth's atmosphere
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QC974.5-976 Meteorological optics
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QC980-999 Climatology and weather
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QC994.95-999 Weather forecasting
Browsing in any of these areas may lead to the discovery of valuable material in addition to the specific items listed in this guide.
