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Annus Mirabilis Papers
The ''annus mirabilis'' papers (from Latin '' annus mīrābilis'', "miracle year") are the four papers that Albert Einstein published in ''Annalen der Physik'' (''Annals of Physics''), a scientific journal, in 1905. These four papers were major contributions to the foundation of modern physics. They revolutionized science's understanding of the fundamental concepts of space, time, mass, and energy. Because Einstein published these remarkable papers in a single year, 1905 is called his ''annus mirabilis'' (''miracle year'' in English or ''Wunderjahr'' in German). The first paper explained the photoelectric effect, which was the only specific discovery mentioned in the citation awarding Einstein the Nobel Prize in Physics. The second paper explained Brownian motion, which led reluctant physicists to accept the existence of atoms. The third paper introduced Einstein's theory of special relativity. The fourth, a consequence of the theory of special relativity, developed the princip ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Einstein Patentoffice
Albert Einstein ( ; ; 14 March 1879 – 18 April 1955) was a German-born theoretical physicist, widely acknowledged to be one of the greatest and most influential physicists of all time. Einstein is best known for developing the theory of relativity, but he also made important contributions to the development of the theory of quantum mechanics. Relativity and quantum mechanics are the two pillars of modern physics. His mass–energy equivalence formula , which arises from relativity theory, has been dubbed "the world's most famous equation". His work is also known for its influence on the philosophy of science. He received the 1921 Nobel Prize in Physics "for his services to theoretical physics, and especially for his discovery of the law of the photoelectric effect", a pivotal step in the development of quantum theory. His intellectual achievements and originality resulted in "Einstein" becoming synonymous with "genius". In 1905, a year sometimes described as his '' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Atomic Energy
Atomic energy or energy of atoms is energy carried by atoms. The term originated in 1903 when Ernest Rutherford began to speak of the possibility of atomic energy.Isaac Asimov, ''Atom: Journey Across the Sub-Atomic Cosmos'', New York:1992 Plume, , Page 125 H. G. Wells popularized the phrase "splitting the atom", before discovery of the atomic nucleus. Atomic energy includes: * Nuclear binding energy, the energy required to split a nucleus of an atom. * Nuclear potential energy, the potential energy of the particles inside an atomic nucleus. *Nuclear reaction, a process in which nuclei or nuclear particles interact, resulting in products different from the initial ones; see also nuclear fission and nuclear fusion. * Radioactive decay, the set of various processes by which unstable atomic nuclei (nuclides) emit subatomic particles. * The energy of inter-atomic or chemical bond A chemical bond is a lasting attraction between atoms or ions that enables the formation of m ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Michelson–Morley Experiment
The Michelson–Morley experiment was an attempt to detect the existence of the luminiferous aether, a supposed medium permeating space that was thought to be the carrier of light waves. The experiment was performed between April and July 1887 by American physicists Albert A. Michelson and Edward W. Morley at what is now Case Western Reserve University in Cleveland, Ohio, and published in November of the same year. The experiment compared the speed of light in perpendicular directions in an attempt to detect the relative motion of matter through the stationary luminiferous aether ("aether wind"). The result was negative, in that Michelson and Morley found no significant difference between the speed of light in the direction of movement through the presumed aether, and the speed at right angles. This result is generally considered to be the first strong evidence against the then-prevalent aether theory, as well as initiating a line of research that eventually led to special r ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
William Thomson, 1st Baron Kelvin
William Thomson, 1st Baron Kelvin, (26 June 182417 December 1907) was a British mathematician, mathematical physicist and engineer born in Belfast. Professor of Natural Philosophy at the University of Glasgow for 53 years, he did important work in the mathematical analysis of electricity and formulation of the first and second laws of thermodynamics, and did much to unify the emerging discipline of physics in its contemporary form. He received the Royal Society's Copley Medal in 1883, was its president 1890–1895, and in 1892 was the first British scientist to be elevated to the House of Lords. Absolute temperatures are stated in units of kelvin in his honour. While the existence of a coldest possible temperature ( absolute zero) was known prior to his work, Kelvin is known for determining its correct value as approximately −273.15 degrees Celsius or −459.67 degrees Fahrenheit. The Joule–Thomson effect is also named in his honour. He worked closely with math ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mileva Marić
Mileva Marić ( sr-cyr, Милева Марић; 19 December 1875 – 4 August 1948), sometimes called Mileva Marić-Einstein ( sr-cyr, Милева Марић-Ајнштајн, Mileva Marić-Ajnštajn), was a Serbian physicist and mathematician and the first wife of Albert Einstein from 1903 to 1919. She was the only woman among Einstein's fellow students at Zürich Polytechnic and was the second woman to finish a full program of study at the Department of Mathematics and Physics. Marić and Einstein were collaborators and lovers and had a daughter Lieserl in 1902, whose fate is unknown. They later had two sons, Hans Albert and Eduard. They separated in 1914, with Marić taking the boys and returning to Zürich from Berlin. They divorced in 1919; that year Einstein married again. When he received the Nobel Prize in 1921, he transferred the money to Marić, chiefly to support their sons; she had access to the interest. In 1930, their second son Eduard had a breakdown at about a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Conrad Habicht
Conrad Habicht (December 28, 1876 in Schaffhausen – October 23, 1958 in Schaffhausen) was a Swiss mathematician and close personal friend of Albert Einstein. Association With Einstein Together with Maurice Solovine, the three founded the Olympia Academy, an informal circle of friends who met together in Bern from 1902 to 1904 to discuss physics and philosophy. Habicht and Solovine were the only two witnesses to Einstein's 1903 wedding to Mileva Marić. Habicht was the recipient of Einstein's 1905 letter in which Einstein described his Annus Mirabilis papers. Habich also received Einstein's letter about quanta. Einstein and Solovine lost contact with Habicht but regained contact in 1947. A book of letters between Einstein and Habicht in German Language was published in 2000. Early Life Habicht came from a middle class family in Schaffhausen and grew up there with four brothers and sisters. Son of Johann Conrad Habicht, merchant, and Susanna Elisabetha Oechslin, from ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Maurice Solovine
Maurice Solovine (21 May 1875 – 13 February 1958) was a Romanian philosopher and mathematician. He is best known for his association with Albert Einstein. Biography Solovine was born in Iași, a university city in eastern Romania Romania ( ; ro, România ) is a country located at the crossroads of Central, Eastern, and Southeastern Europe. It borders Bulgaria to the south, Ukraine to the north, Hungary to the west, Serbia to the southwest, Moldova to the east, a ..., near the border with Moldova. As a young student of philosophy in Bern, Solovine applied to study physics with Albert Einstein in response to an advertisement. The two men struck up a close relationship and Einstein was said to say to Solovine a few days after meeting him: "It is not necessary to give you lessons in physics. The discussion about the problems which we face in physics today is much more interesting; simply come to me when you wish. I am pleased to be able to talk to you." One day Solovi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Olympia Academy
The Olympia Academy (German: ''Akademie Olympia'') was a group of friends in Bern, Switzerland, who met – usually at Albert Einstein's apartment – to discuss philosophy and physics. Overview The group was founded in 1902 by Einstein, Conrad Habicht, and Maurice Solovine, and played a significant role in Einstein's intellectual development. Before his " miracle year" (1905), when Einstein was a patent clerk in Bern, the group of friends met to debate books in the fields of physics and philosophy. The group's origin lay in Einstein's need to offer private lessons in mathematics and physics in order to make a living (in 1901, before he took up his post at the patent office in Bern). Solovine, a Romanian philosophy student, answered Einstein's newspaper advertisement. In fact neither the tutorials nor any payment materialised; instead, the two began to meet regularly to discuss their shared interest in physics and philosophy. They were soon joined by the mathematician ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Michele Besso
Michele Angelo Besso ( Riesbach, 25 May 1873 – Geneva, 15 March 1955) was a Swiss-Italian engineer best known for working closely with Albert Einstein. Biography Besso was born in Riesbach from a family of Italian Jewish ( Sephardi) descent. He was a close friend of Albert Einstein during his years at the Federal Polytechnic Institute in Zurich, (today known as ETH Zurich) and then at the patent office in Bern, where Einstein helped him to get a job. Besso is credited with introducing Einstein to the works of Ernst Mach, the sceptical critic of physics who influenced Einstein's approach to the discipline. Einstein called Besso "the best sounding board in Europe" for scientific ideas. In Einstein's original paper on special relativity, he ended the paper stating, "In conclusion, let me note that my friend and colleague M. Besso steadfastly stood by me in my work on the problem here discussed, and that I am indebted to him for many a valuable suggestion." Besso died in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bern
Bern () or Berne; in other Swiss languages, gsw, Bärn ; frp, Bèrna ; it, Berna ; rm, Berna is the ''de facto'' capital of Switzerland, referred to as the " federal city" (in german: Bundesstadt, link=no, french: ville fédérale, link=no, it, città federale, link=no, and rm, citad federala, link=no). According to the Swiss constitution, the Swiss Confederation intentionally has no "capital", but Bern has governmental institutions such as the Federal Assembly and Federal Council. However, the Federal Supreme Court is in Lausanne, the Federal Criminal Court is in Bellinzona and the Federal Administrative Court and the Federal Patent Court are in St. Gallen, exemplifying the federal nature of the Confederation. With a population of about 133,000 (as of 2022), Bern is the fifth-most populous city in Switzerland, behind Zurich, Geneva, Basel and Lausanne. The Bern agglomeration, which includes 36 municipalities, had a population of 406,900 in 2014. The metropolitan ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Theory
A theory is a rational type of abstract thinking about a phenomenon, or the results of such thinking. The process of contemplative and rational thinking is often associated with such processes as observational study or research. Theories may be scientific, belong to a non-scientific discipline, or no discipline at all. Depending on the context, a theory's assertions might, for example, include generalized explanations of how nature works. The word has its roots in ancient Greek, but in modern use it has taken on several related meanings. In modern science, the term "theory" refers to scientific theories, a well-confirmed type of explanation of nature, made in a way consistent with the scientific method, and fulfilling the criteria required by modern science. Such theories are described in such a way that scientific tests should be able to provide empirical support for it, or empirical contradiction (" falsify") of it. Scientific theories are the most reliable, rigorous, an ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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