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The Smith–Purcell effect was the precursor of the free-electron laser (FEL). It was studied by Steve Smith, a graduate student under the guidance of Edward Purcell. In their experiment, they sent an energetic beam of electrons very closely parallel to the surface of a ruled optical diffraction grating, and thereby generated visible light.[1] Smith showed there was negligible effect on the trajectory of the inducing electrons. Essentially, this is a form of Cherenkov radiation where ...

Metropolitan area in Missouri, United States Metropolitan area in Missouri, United StatesColumbia, Missouri Metropolitan Area Columbia-Jefferson City-Moberly, MO CSAMetropolitan areaJesse Hall at the University of MissouriLocation in Missouri38°57′06″N 92°19′43″W / 38.951561°N 92.328638°W / 38.951561; -92.328638 (Columbia, Missouri Metropolitan Area)Country United StatesState MissouriLargest city Columbia, MissouriOther citi...

Canton de Bain-de-Bretagne Situation du canton de Bain-de-Bretagne dans le département d'Ille-et-Vilaine. Administration Pays France Région Bretagne Département Ille-et-Vilaine Arrondissement(s) Redon Bureau centralisateur Bain-de-Bretagne Conseillersdépartementaux Mandat Frédéric MartinLaurence Roux 2021-2028 Code canton 35 02 Histoire de la division Création 1790 Modification 22 mars 2015[1] Démographie Population 32 530 hab. (2021) Densité 70 hab./km2 Géographie C...

Sungai Ohio Bagian terlebar dari Sungai Ohio. Lebarnya mencapai 1,6 km Negara Amerika Serikat Provinsi Pennsylvania, Ohio, Virginia Barat, Kentucky, Indiana, Illinois Sungai Ohio adalah sungai utama di bagian timur sampai ke pusat Amerika Serikat.[1] Sungai ini dibentuk dari pertemuan antara Sungai Allegheny dan Sungai Monongahela di Pittsburgh.[1] Air di Sungai Ohio mengalir dari barat laut Pennsylvania ke barat daya untuk bergabung dengan Sungai Mississippi di Illinois.[...

Artikel ini membutuhkan rujukan tambahan agar kualitasnya dapat dipastikan. Mohon bantu kami mengembangkan artikel ini dengan cara menambahkan rujukan ke sumber tepercaya. Pernyataan tak bersumber bisa saja dipertentangkan dan dihapus.Cari sumber: Bank DKI – berita · surat kabar · buku · cendekiawan · JSTOR (September 2023) Bank DKIKantor pusat Bank DKIJenisPerserodaIndustriJasa keuanganDidirikan11 April 1961; 62 tahun lalu (1961-04-11)Kantorpusat...

Классическая механикаИстория… Фундаментальные понятия Пространство Время Масса Скорость Сила Механическая работа Энергия Импульс Формулировки Ньютоновская механика Лагранжева механика Гамильтонова механика Формализм Гамильтона — Якоби Уравнения Рауса Уравнения ...

Steven Robert Steve Guttenberg (lahir 24 Agustus 1958) merupakan seorang aktor berkebangsaan Amerika Serikat. Dia menjadi terkenal saat bermain di film utamanya seperti Cocoon, Three Men and a Baby, Police Academy, dan Short Circuit. Dia dilahirkan di Brooklyn, New York. Dia berkarier di dunia film sejak tahun 1977. Filmografi The Chicken Chronicles (1977) The Boys from Brazil (1978) Players (1979) Can't Stop the Music (1980) Miracle On Ice (1981) Diner (1982) The Man Who Wasn't There (1983) ...

У этого термина существуют и другие значения, см. Тур. Запрос «Bos taurus primigenius» перенаправляется сюда; см. также другие значения. † Тур Скелет тура Научная классификация Домен:ЭукариотыЦарство:ЖивотныеПодцарство:ЭуметазоиБез ранга:Двусторонне-симметричныеБез ранга:В...

本條目存在以下問題，請協助改善本條目或在討論頁針對議題發表看法。 此條目的语调或风格或許不合百科全書。 (2024年1月29日)請根據指南協助改善这篇条目，並在讨论页討論問題所在，加以改善。 此生者传记条目需要补充更多可供查證的来源。 (2024年1月29日)请协助補充可靠来源，无法查证的在世人物内容将被立即移除。   此条目页的主題是中华人民共和国现任国...

عليا الطرب بالتلاتةعليا الطرب بالتلاته (بالعربية) معلومات عامةتاريخ الصدور 23 أكتوبر 2006اللغة الأصلية العربيةالبلد  مصرالطاقمالمخرج أحمد البدريالكاتب أحمد عبد اللهالبطولة محمد عطيةريهام عبد الغفورديناريكوسعد الصغيرالموسيقى عصام كاريكاصناعة سينمائيةالمنتج أحمد السب...

Belgian aircraft identification Belgian owned and operated aircraft are identified by either registration letters or serial numbers for military aircraft.[1] Civil aircraft An aircraft registration is a unique alphanumeric string that identifies a civil aircraft, in similar fashion to a licence plate on an automobile. In accordance with the Convention on International Civil Aviation all aircraft must be registered with a national aviation authority and they must carry proof of this re...

Boat race on the River Thames The Women's Boat RaceThe Gemini Boat Race Contested by CUBC OUWBC First boat race 15 March 1927[1] First side-by-side race 1936[2] Annual event since 1964[3] Current champion Cambridge Course record Cambridge, 2022 (18 min 23 sec)[4] Current course The Championship CourseRiver Thames, London (2015 onwards, except 2021 on the River Great Ouse)[5][6] Course length 4.2 miles (6.8 km)[5] Sponsor Gemini (sin...

Commandant of the U.S. Coast Guard and Deputy Secretary of Homeland Security James LoyUnited States Secretary of Homeland SecurityActingIn officeFebruary 1, 2005 – February 15, 2005PresidentGeorge W. BushPreceded byTom RidgeSucceeded byMichael Chertoff2nd United States Deputy Secretary of Homeland SecurityIn officeNovember 4, 2003 – March 1, 2005PresidentGeorge W. BushPreceded byGordon R. EnglandSucceeded byMichael P. Jackson2nd Administrator of the Transportation Securi...

  الاتحاد البريدي العالمي الاتحاد البريدي العالمي‌ الاتحاد البريدي العالمي‌   الاختصار (بالإنجليزية: UPU)‏،  و(بالفرنسية: UPU)‏،  و(بالإسبانية: UPU)‏،  و(بالإسبرانتو: UPU)‏،  و(بالكتالونية: UPU)‏،  و(بالإيطالية: UPU)‏،  و(بالرومانية: UPU)‏،  و(بالبرتغالية: UPU)‏�...

1847 New Jersey gubernatorial election ← 1844 November 2, 1847 1850 →   Nominee Daniel Haines William Wright Party Democratic Whig Popular vote 34,765 32,251 Percentage 51.88% 48.12% Haines:      50–60%      60–70%      70–80% Wright:      50–60%      60–70% Governor before election Charles C. Stratton Whig Elected Governor Dan...

عبد الله العادل معلومات شخصية تاريخ الميلاد 1170 الوفاة أكتوبر 4, 1227مراكش  سبب الوفاة غرق  مواطنة الأندلس  الأب أبو يوسف يعقوب بن يوسف المنصور  إخوة وأخوات محمد الناصر،  وإدريس المأمون[1]  عائلة الدولة الموحدية  الحياة العملية المهنة سياسي  تعديل مصدر�...

Questa voce sull'argomento geografia è solo un abbozzo. Contribuisci a migliorarla secondo le convenzioni di Wikipedia. Segui i suggerimenti del progetto di riferimento. La punta (o lingua) è una sporgenza della costa che si protende nel mare. Voci correlate Punta Palascia, il punto più orientale d'Italia. Capo (geografia) Promontorio Capi e promontori italiani Geografia litorale Costa Golfo Istmo Oceano Mare Lago Portale Scienze della Terra: accedi alle voci di Wikipedia ch...

Legal privilege given to some members in monarchical and princely societies This article may contain unverified or indiscriminate information in embedded lists. Please help clean up the lists by removing items or incorporating them into the text of the article. (March 2023) Part of the Politics seriesMonarchy Central concepts MonarchMonarchismDivine right of kingsMandate of HeavenRoyal prerogative Types Abdication system Absolute Chinese Legalist Composite Constitutional Crowned republic Diar...

Der Titel dieses Artikels ist mehrdeutig. Weitere Bedeutungen sind unter Peter Lax (Begriffsklärung) aufgeführt. Peter Lax (1969) Peter David Lax (* 1. Mai 1926 in Budapest) ist ein ungarischer Mathematiker und Träger des Wolf-Preises für Mathematik von 1987 sowie des Abelpreises 2005. Er arbeitet am Courant Institute of Mathematical Sciences an der New York University. Inhaltsverzeichnis 1 Biographie 2 Ehrungen und Mitgliedschaften 3 Arbeitsgebiete 4 Schriften 5 Literatur 6 Weblinks 7 E...

Calendar year Millennium: 2nd millennium Centuries: 12th century 13th century 14th century Decades: 1260s 1270s 1280s 1290s 1300s Years: 1284 1285 1286 1287 1288 1289 1290 1287 by topic Leaders Political entities State leaders Religious leaders Birth and death categories Births – Deaths Establishments and disestablishments categories Establishments – Disestablishments Art and literature 1287 in poetry vte 1287 in various calendarsGregorian calendar1287MCCLXXXVIIAb urb...