dipole model
71History of radar — The history of radar starts with experiments by Heinrich Hertz in the late 19th century that showed that radio waves were reflected by metallic objects. This possibility was suggested in James Clerk Maxwell s seminal work on electromagnetism.… …
72Stern–Gerlach experiment — In quantum mechanics, the Stern–Gerlach experiment [Walther Gerlach Otto Stern, Das magnetische Moment des Silberatoms , Zeitschrift für Physik 9, 353 355 (1922).] , named after Otto Stern and Walther Gerlach, is an important 1922 experiment on… …
73Geomagnetic reversal — Magnetic reversal redirects here. For switching of a magnet, see Magnetization reversal. Geomagnetic polarity during the late Cenozoic Era. Dark areas denote periods where the polarity matches today s polarity, light areas denote periods where… …
74Magnetotellurics — Magnetotelluric station Magnetotellurics (MT) is an electromagnetic geophysical method of imaging the earth s subsurface by measuring natural variations of electrical and magnetic fields at the Earth s surface. Investigation depth ranges from… …
75Photonic metamaterial — Electromagnetism Electricity · …
76El Niño-Southern Oscillation — El Niño redirects here. For other uses, see El Niño (disambiguation). ENSO redirects here. For other uses, see Enso (disambiguation). The 1997 El Niño observed by TOPEX/Poseidon. The white areas off the tropical coasts of South and North America… …
77Cosmic Background Explorer — (COBE) General information NSSDC ID 1989 089A Organization NASA …
78quantum mechanics — quantum mechanical, adj. Physics. a theory of the mechanics of atoms, molecules, and other physical systems that are subject to the uncertainty principle. Abbr.: QM Cf. nonrelativistic quantum mechanics, relativistic quantum mechanics. [1920 25]… …
79Magnetosphere of Saturn — Aurorae on the south pole of Saturn as viewed by Hubble Internal field[1 …
80List of radio propagation topics — This is a list of radio propagation terms. NOTOC A a index A index aa index active prominence active prominence region (APR) active region active surge region (ASR) active dark filament (ADF) AE index Air Force Geophysics Laboratory (AFGL) arch… …
