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Modern physics is often encountered when dealing with extreme conditions. Quantum mechanical effects tend to appear when dealing with "lows" (low temperatures, small distances), while relativistic effects tend to appear when dealing with "highs" (high velocities, large distances), the "middles" being
315:, sizes are much greater than that of atoms, and energies are relatively small. Modern physics, however, is concerned with more extreme conditions, such as high velocities that are comparable to the
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Very often, it is possible to find – or "retrieve" – the classical behavior from the modern description by analyzing the modern description at low speeds and large distances (by taking a
43:, sizes are much greater than that of atoms, yet very small in astronomical terms. Modern physics, however, is concerned with high velocities, small distances, and very large energies.
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Modern physics is an effort to understand the underlying processes of the interactions of matter using the tools of science and engineering. In a literal sense, the term
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These are generally considered to be the topics regarded as the "core" of the foundation of modern physics:
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means up-to-date physics. In this sense, a significant portion of so-called
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classical behavior. For example, when analyzing the behavior of a gas at
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430:(1879–1955), founder of the
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364:: especially the advent of
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730:(5th ed.). New York:
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538:Geiger–Marsden experiment
515:and the evolution of the
211:List of unsolved problems
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1564:Golden age of cosmology
1496:On specific discoveries
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57:
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49:
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42:
38:
34:
30:
19:
1602:The Martians
1304:
1266:Spectroscopy
1208:Aerodynamics
1186:Field theory
1015:Astrophysics
934:
829:Experimental
727:
682:
659:
517:atomic model
506:
485:
482:Planck's law
456:
446:
378:
373:
355:
351:
349:
306:
305:
284:
283:
157:
123:Astrophysics
29:
1526:Higgs boson
918:Statistical
834:Theoretical
811:Engineering
732:McGraw-Hill
664:McGraw-Hill
394:Fermi–Dirac
329:human scale
1711:Categories
1547:By periods
1365:Geophysics
1337:Cosmology
1035:Geophysics
1025:Biophysics
869:Analytical
822:Approaches
652:References
566:in general
519:in general
436:Max Planck
370:relativity
148:Geophysics
133:Biophysics
1590:By groups
1574:Astronomy
1410:Molecules
1244:Mechanics
1159:Astronomy
985:Molecular
886:Acoustics
879:Continuum
874:Celestial
864:Newtonian
851:Classical
794:Divisions
493:Hallmarks
368:(QM) and
191:Physicist
153:Mechanics
118:Acoustics
1696:Category
1521:timeline
1508:Graphene
1470:timeline
1439:timeline
1427:timeline
1400:timeline
1341:timeline
1326:timeline
1316:timeline
1278:timeline
1249:timeline
1232:timeline
1220:timeline
1203:timeline
1176:timeline
1164:timeline
1142:timeline
740:55006862
592:See also
245:Category
185:Research
111:Branches
98:timeline
85:Glossary
1722:Physics
1531:Neutron
1388:Weapons
1373:Fission
1288:Entropy
1069:Related
953:General
948:Special
806:Applied
289:physics
94:History
80:Outline
56:Physics
1378:Fusion
1283:Energy
1261:Optics
980:Atomic
935:Modern
785:Major
738:
693:
670:
434:, and
299:, and
243:
168:Optics
1449:tests
1405:Atoms
1383:Power
1358:tests
705:Notes
449:limit
75:Index
906:Wave
801:Pure
736:LCCN
691:ISBN
668:ISBN
501:and
195:list
901:Ray
396:or
343:of
1713::
713:^
689:.
666:.
461:.
303:.
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1140:(
1130:e
1123:t
1116:v
778:e
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764:v
742:.
699:.
676:.
488:.
323:(
273:e
266:t
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197:)
193:(
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96:(
20:)
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