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Curated by: Dr. Jorge S. Diaz (58 videos)
Buy me a coffee and support the channel: https://ko-fi.com/jkzero In 1915, Einstein ran the only experiment of his career; the result he published was wrong but it triggered many new experiments that revealed a macroscopic effect caused by spin. This video follows the gyromagnetic anomaly from the original proposal of the so-called Einstein-de Haas effect (Richardson effect is a better name), the Einstein-de Haas experiment, and its link to the anomalous Zeeman effect and Landé's g-factor. [Related videos] ∘ Zero-point energy https://youtu.be/DgrOm5nsm98 ∘ Landé's g-factor https://youtu.be/A9OQRHhk8eA ∘ Playlist video series on Quantum Physics https://www.youtube.com/playlist?list=PL_UV-wQj1lvVxch-RPQIUOHX88eeNGzVH [References] [1] J. C. Maxwell, "A treatise on electricity and magnetism," Oxford : Clarendon Press (1881) [2] O. W. Richardson, "A Mechanical Effect Accompanying Magnetization," Phys. Rev. 26, 248 (1908) [3] S. J. Barnett, "On Magnetization by Angular Acceleration," Science 30: 769, 413 (1909) [4] S. J. Barnett, "Magnetization by Rotation," Phys. Rev. 6, 239 (1915) [5] S. J. Barnett, "The Magnetization of Iron, Nickel, and Cobalt by Rotation and the Nature of the Magnetic Molecule," Phys. Rev. 10, 7 (1917) [6] M. Trainer, "Albert Einstein’s expert opinions on the Sperry vs. Anschütz gyrocompass patent dispute," World Pat. Inf. 30:4, 320-325 (2008) [7] A. San Miguel and B. Pallandre, "Revisiting the Einstein-de Haas experiment: the Amp{è}re Museum's hidden treasure," Europhysics News, 55 (4) 28-31 (2024) [8] A. Einstein and W. J. de Haas, "Experimenteller Nachweis der Ampèreschen Molekularströme," Deut. Phys. Gesell. 17, 152–170 (1915) https://archive.org/details/verhandlungen00goog/page/n167/mode/2up [9] P. Galison, “How Experiments End: Three Case Studies of the Interaction of Experiment and Theory in Twentieth-Century Physics,” Ph.D. Thesis (1983) [10] A. Pais, "Subtle is the Lord: The science and the life of Albert Einstein," Clarendon Press/Oxford University Press (1982) [11] J.Q. Stewart, "The Moment of Momentum Accompanying Magnetic Moment in Iron and Nickel," Phys. Rev. 11, 100 (1918) [Feb] [12] E. Beck, "Zum experimentellen Nachweis der Ampereschen Molekularströme," Ann. Phys. 365, 109-148 (1919) [13] G. Arvidsson, Phys. Z 21, 88-91 (1920) [14] P. Curie, "Propriétés magnétiques des corps à diverses températures," Académie de Paris (1895) [15] P. Langevin, "Magnétisme et théorie des électrons," Ann. de Chimie et de Physique 5, 70–127 (1905) [16] A. Einstein, "Experimenteller Nachweis der Ampèreschen Molekularströme," Naturwissenschaften 3, 237-238 (1915) [17] A. Landé, "Über den anomalen Zeemaneffekt (II.Teil)," Z. Phys. 5:398-405 (1921) [Credits] The Zurich Notebook, Albert Einstein Archives Der Einstein-de-Haas-Effekt by Lehr Portal U. Göttingen https://lp.uni-goettingen.de/get/text/1681 Einstein De Haas Effect by U. of Michigan, Physics Demonstration Lab https://www.youtube.com/watch?v=qFkW0PHhXcY Einstein De Haas Effect, v2 by U. of Michigan, Physics Demonstration Lab https://www.youtube.com/watch?v=-z28_vCAsSs Einstein-de Haas effect by J. Olbrich under CC BY-SA 3.0 Hans Christian Ørsted, PD Versuch von Oersted - Realexperiment by cg-physics.org https://www.youtube.com/watch?v=Hk-tVxOKgV0 Magnet vs. solenoid by Rice University under CC BY 4.0 André-Marie Ampère, PD James C. Maxwell, PD Fifth Solvay Conference, colored by AIP Owen Richardson, PD Karl Compton, PD Ali Mosharafa, PD Clinton Davisson, PD Electron diffraction pattern of Si by Ldm1954 under CC BY-SA 4.0 Princeton University, 1909 by Haines Photo Co., PD Magnetic dipole moment current by Universaldenker under CC BY 4.0 Samuel J. Barnett by AIP NASA ScienceCasts: Earth's Magnetosphere https://www.youtube.com/watch?v=o4FSg-90XlA Earth's magnetic field lines, NASA/GSFC A. Einstein, PD Berlin, Mitte, PD Elmer Ambrose Sperry, PD Hermann Anschütz-Kaempfe by Anschütz GmbH First gyrocompass by N. Kjerstad under CC BY-SA 3.0 NO Kreiselkompass Schnitt Anschütz by Stahlkocher under CC BY-SA 3.0 German Imperial Navy U-26 U-boat, IWM, PD 1889 Gymnote Gyroscope by P. Krebs, PD Physikalisch-Technische Reichsanstalt, PD Madame Geertruida de Haas-Lorentz by G. Chevalier under CC BY 4.0 Geertruida de Haas-Lorentz with father Hendrik Lorentz, PD de-Haas-Lorentz-London penetration curve by Jcuhfehl under CC BY 4.0 EM lab, PD John Quincy Stewart by AIP Pierre Curie by Dujardin, PD Paul Langevin, PD PD: public domain AIP: American Institute of Physics, Emilio Segrè Visual Archives CC BY 2.5: https://creativecommons.org/licenses/by/2.5/deed.en CC BY 4.0: https://creativecommons.org/licenses/by/4.0/deed.en CC BY-SA 3.0: https://creativecommons.org/licenses/by-sa/3.0/deed.en CC BY-SA 4.0: https://creativecommons.org/licenses/by-sa/4.0/deed.en CC BY-SA 3.0 NO: https://creativecommons.org/licenses/by-sa/3.0/no/deed.en