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Paul Ehrenfest was born on 18 January 1880 in Vienna to Jewish parents, [3] who were originally from Loštice in Moravia (now part of the Czech Republic). His parents, Sigmund Ehrenfest and Johanna Jellinek, managed a grocery store. Although the family was not overly religious, Paul studied Hebrew and Jewish history. Later, he always emphasized ...
The Ehrenfest theorem is a special case of a more general relation between the expectation of any quantum mechanical operator and the expectation of the commutator of that operator with the Hamiltonian of the system [2] [3]
The types of shows described as television specials include: [2] One-time comedy shows; Extended episodes of TV shows. Adaptations of operas, Broadway plays, and other musicals; Celebrity profiles, interviews, or tribute specials; Seasonal programs or parades: Christmas television specials, Macy's Thanksgiving Day Parade, New Year's Eve
The Ehrenfest paradox concerns the rotation of a "rigid" disc in the theory of relativity. In its original 1909 formulation as presented by Paul Ehrenfest in relation to the concept of Born rigidity within special relativity , [ 1 ] it discusses an ideally rigid cylinder that is made to rotate about its axis of symmetry. [ 2 ]
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ABC's Wide World of Entertainment is a late night television block of programs created by the ABC television network. It premiered on January 8, 1973, and ended three years later. [ 1 ] The title was based on the long-running broadcast ABC's Wide World of Sports ; there was also an ABC's Wide World of Mystery broadcast from 1973 to 1978.
Celebrating America is a television special which aired as part of the post-inaugural events following the inauguration of Joe Biden on January 20, 2021. Hosted by actor Tom Hanks and produced by Ricky Kirshner, Glenn Weiss, and Stephanie Cutter, the special featured musical performances and speeches from various Americans, including those from President Joe Biden and Vice President Kamala Harris.