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Albert attended a Catholic elementary school in Munich from the age of five. When he was eight, he was transferred to the Luitpold-Gymnasium (now known as the Albert-Einstein-Gymnasium) where he received advanced primary and then secondary school education. [22] The main difference between the mechanical pencil lead hardness scale and the wooden pencil lead grade scale is that fewer grades are available due to the thinness of the lead compared to a wooden pencil lead core. In 1917, at the height of his work on relativity, Einstein published an article in Physikalische Zeitschrift that proposed the possibility of stimulated emission, the physical process that makes possible the maser and the laser. [278] They have continued to innovate, and their latest premium Pentel AIN STEIN lead is widely regarded as the world’s best mechanical pencil lead refills.a b "Result of WordNet Search for Einstein". 3.1. The Trustees of Princeton University. Archived from the original on 28 August 2015 . Retrieved 4 January 2015. Regarding which brand of mechanical pencil lead is the strongest, Pentel AIN STEIN is widely regarded as the most robust mechanical pencil lead compared to the other brands. 8. 8B Mechanical Pencil Lead

Pentel AIN STEIN is the best premium #2/HB mechanical pencil lead, and the best for #2 lead refills for everyday writing is Pentel Super High Polymer Lead. 8. The Best 0.7 mm Mechanical Pencil LeadThe best 0.7 mm pencil lead is made by Faber-Castell, Pilot, Pentel, Uni, and Staedtler. 9. The Best Mechanical Pencil Rotating Lead Albert Einstein, (born March 14, 1879, Ulm, Württemberg, Germany—died April 18, 1955, Princeton, New Jersey, U.S.), German-born physicist who developed the special and general theories of relativity and won the Nobel Prize for Physics in 1921 for his explanation of the photoelectric effect. Einstein is generally considered the most influential physicist of the 20th century.

In July 1912, he returned to his alma mater, the ETH Zurich, to take up a chair in theoretical physics. His teaching activities there centred on thermodynamics and analytical mechanics, and his research interests included the molecular theory of heat, continuum mechanics and the development of a relativistic theory of gravitation. In his work on the latter topic, he was assisted by his friend, Marcel Grossmann, whose knowledge of the kind of mathematics required was greater than his own. [87] a b c d Whittaker, E. (1 November 1955). "Albert Einstein. 1879–1955". Biographical Memoirs of Fellows of the Royal Society. 1: 37–67. doi: 10.1098/rsbm.1955.0005. JSTOR 769242.

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Einstein was not a nationalist and opposed the creation of an independent Jewish state. [179] He felt that the waves of arriving Jews of the Aliyah could live alongside existing Arabs in Palestine. The state of Israel was established without his help in 1948; Einstein was limited to a marginal role in the Zionist movement. [180] Upon the death of Israeli president Weizmann in November 1952, Prime Minister David Ben-Gurion offered Einstein the largely ceremonial position of President of Israel at the urging of Ezriel Carlebach. [181] [182] The offer was presented by Israel's ambassador in Washington, Abba Eban, who explained that the offer "embodies the deepest respect which the Jewish people can repose in any of its sons". [183] Einstein wrote that he was "deeply moved", but "at once saddened and ashamed" that he could not accept it. [183] Religious and philosophical views Opening of Einstein's speech (11 April 1943) for the United Jewish Appeal (recording by Radio Universidad Nacional de La Plata, Argentina)

The more graphite is in the lead, the softer, smoother, and darker it will be. Darker leads are “B” grades. Conversely, the more clay is in the lead, the harder, toothier, and lighter it becomes. “H” lead grades are hard. Lead grades handily distinguish which balances of these properties each lead has. Einstein, Albert; Podolsky, Boris; Rosen, Nathan (15 May 1935) [Received 25 March 1935]. "Can Quantum-Mechanical Description of Physical Reality Be Considered Complete?". Physical Review (Submitted manuscript). 47 (10): 777–780. Bibcode: 1935PhRv...47..777E. doi: 10.1103/PhysRev.47.777– via APS Journals. Einstein's affiliation with the Institute for Advanced Study would last until his death in 1955. [149] He was one of the four first selected (along with John von Neumann, Kurt Gödel, and Hermann Weyl [150]) at the new Institute. He soon developed a close friendship with Gödel; the two would take long walks together discussing their work. Bruria Kaufman, his assistant, later became a physicist. During this period, Einstein tried to develop a unified field theory and to refute the accepted interpretation of quantum physics, both unsuccessfully. He lived in Princeton at his home from 1935 onwards. The Albert Einstein House was made a National Historic Landmark in 1976. Einstein, A.; de Sitter, W. (1932). "On the relation between the expansion and the mean density of the universe". Proceedings of the National Academy of Sciences. 18 (3): 213–214. Bibcode: 1932PNAS...18..213E. doi: 10.1073/pnas.18.3.213. PMC 1076193. PMID 16587663. Einstein, Albert (1905d) [Manuscript received 30 June 1905]. Written at Berne, Switzerland. Paul Karl Ludwig Drude (ed.). "Zur Elektrodynamik bewegter Körper"[On the Electrodynamics of Moving Bodies]. Annalen der Physik (Submitted manuscript). Vierte Folge (in German). Leipzig, Germany: Verlag von Johann Ambrosius Barth (published 26 September 1905). 17 (all series: 322) (10): 891–921. Bibcode: 1905AnP...322..891E. doi: 10.1002/andp.19053221004. hdl: 10915/2786– via Wiley Online Library, Hoboken, New Jersey, US (10 March 2006).

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Einstein never fully accepted quantum mechanics. While he recognized that it made correct predictions, he believed a more fundamental description of nature must be possible. Over the years he presented multiple arguments to this effect, but the one he preferred most dated to a debate with Bohr in 1930. Einstein suggested a thought experiment in which two objects are allowed to interact and then moved apart a great distance from each other. The quantum-mechanical description of the two objects is a mathematical entity known as a wavefunction. If the wavefunction that describes the two objects before their interaction is given, then the Schrödinger equation provides the wavefunction that describes them after their interaction. But because of what would later be called quantum entanglement, measuring one object would lead to an instantaneous change of the wavefunction describing the other object, no matter how far away it is. Moreover, the choice of which measurement to perform upon the first object would affect what wavefunction could result for the second object. Einstein reasoned that no influence could propagate from the first object to the second instantaneously fast. Indeed, he argued, physics depends on being able to tell one thing apart from another, and such instantaneous influences would call that into question. Because the true "physical condition" of the second object could not be immediately altered by an action done to the first, Einstein concluded, the wavefunction could not be that true physical condition, only an incomplete description of it. [287] [288]