Tesla Society Switzerland Mediathek Videos - Startseite Mediathek Videos Sie befinden sich hier: Mediathek Videos Videos - 21.04.2014 bis 23.04.2014 Teasercollage Video: Quarks & Co: Was wir über den Glauben wissen (45:49 Min.) , Sendung vom 22.04.2014 Quarks & Co: Was wir über den Glauben wissen Sendung vom 22.04.2014 [mehr] Quarks & Co: Was wir über den Glauben wissen: Sendung vom 22.04.2014 Seitenfunktionen globale Links Suche Navigation WDR Mediathek-Navigation WDR-Hauptnavigation Service-Navigation SPIEGEL ONLINE - Nachrichten Startseite War of Currents In the War of Currents era (sometimes, War of the Currents or Battle of Currents) in the late 1880s, George Westinghouse and Thomas Edison became adversaries due to Edison's promotion of direct current (DC) for electric power distribution over alternating current (AC). Thomas Edison, American inventor and businessman, known as "The Wizard of Menlo Park", pushed for the development of a DC power network. George Westinghouse, American entrepreneur and engineer, financially backed the development of a practical AC power network. Edison's direct-current system generated and distributed electric power at the same voltage as used by the customer's lamps and motors. Edison's company had invested heavily in DC technology and was vigorously defending its DC based patents. The "War of Currents" is often personified as Westinghouse vs. Electric power transmission DC To save on the cost of copper conductors, a three-wire distribution system was used. AC Transmission loss
Learn German by watching movies and TV series with German subtitles German language > Movies in German with German subtitles Add movie to this section On this page you will find a list of movies in German that you may use to learn and improve your German. You will not find links to download movies here, but instead there is some unique information that will help you a great deal in your studies of German language - it's our user reviews that will help you choose the best movies that suit your level. Such reviews are indicated by a little sign near the movie title. which level of German is necessary in order to understand the movie: intermediate or advanced, how fast the tempo of speech is, whether the movie contains some specific vocabulary (slang, medical terms, etc.). I invite YOU to write such review for your favorite German movie. If you see a little sign near the movie title, that means that this movie has a vocabulary list compiled by one of our users. Animated movies are indicated by a little penguin Titles marked with asterisk (*) are TV series.
DasErste.de Pages de grammaire allemande: index Grammaire allemande Quelques pages sur la nouvelle orthographe: généralités, règles et exemples Téléchargement Fiches de grammaire au format PDF à l'adresse Zertifikat Deutsch (ZD) Informations sur l'examen et le diplôme Certificats du CECRL Informations sur l'examen et le diplôme .Lexique grammatical .Alphabet et phonétique .Structure de la phrase .Noms & substantifs .La formation des mots .Le verbe, la conjugaison .L'infinitif complément .Les particules verbales .La voix passive .L'adjectif possessif .Les pronoms .Les pronoms personnels .Les pronoms définis .Les pronoms indéfinis ein - kein - welch .Les pronoms démonstratifs adverbiaux .Les pronoms relatifs 1 [der, die, das].Le pronom possessif 1 | 2 | 3 .man, jemand, niemand, irgendjemand, jedermann .Les prépositions .Les conjonctions .Les nombres Les nombres cardinaux . Les nombres ordinaux . Les nombres fractionnaires Dérivation des noms de nombres: mal et fach La date .Les adverbes .Adverbes de temps .La déclinaison
Nikola Tesla Nikola Tesla (Serbian Cyrillic: Никола Тесла; 10 July 1856 – 7 January 1943) was a Serbian-American inventor, electrical engineer, mechanical engineer, physicist, and futurist who is best known for his contributions to the design of the modern alternating current (AC) electricity supply system. Born and raised in the Austrian Empire, Tesla received an advanced education in engineering and physics in the 1870s and gained practical experience in the early 1880s working in telephony and at Continental Edison in the new electric power industry. He emigrated to the United States in 1884, where he would become a naturalized citizen. He worked for a short time at the Edison Machine Works in New York City before he struck out on his own. With the help of partners to finance and market his ideas, Tesla set up laboratories and companies in New York to develop a range of electrical and mechanical devices. Early years Tesla's baptismal record, 28 June 1856 Working at Edison A move to the US
University of Cambridge Language Centre Overview This is a web-application developed by the University of Cambridge Language Centre for basic level students of German. It focuses on listening and reading skill but it also includes many activities that help learners prepare for speaking and writing. The three sections invite you to acquire the functional language needed to go out and about in town, to travel and to organise your leisure time. The following reference materials are included in the German Basic Software in German Essentials, German Verbs and Basic German Grammar. German Essentials, German Verbs and Basic German Grammar If you do not require the whole German Basic application you can also download German Essentials, German Verbs and Basic German Grammar as stand alone applications. Screenshots Click on an image to view the full size version, and on 'Next' and 'Prev' buttons that appear near the top to view the other full-size images. What computer do I need to run the web-application? How do I start the applications?
Nikola Tesla: The Genius Who Lit the World This is the documentary film about Nikola Tesla, the scientist and inventor, one of the greatest men in history. Nikola Tesla was born on July 10,1856 in Smiljan, Lika in what later became Yugoslavia. His father, Milutin Tesla was a Serbian orthodox priest and his mother Djuka Mandic was an inventor in her own right of household appliances. Tesla studied at the Polytechnic Institute in Graz, Austria and the University of Prague. He began his career as an electrical engineer with a telephone company in Budapest in 1881. Before going to America, Tesla joined Continental Edison Company in Paris where he designed dynamos. Young Nikola Tesla came to the United States in 1884. Direct current flows continuously in one direction; alternating current changes direction 50 or 60 times per second, and can be stepped up to very high voltage levels, minimizing power loss across great distances. Tesla's A-C induction motor is widely used throughout the world in industry and household appliances.
Camerata Mediolanense Tesla coil A Tesla coil is an electrical resonant transformer circuit invented by Nikola Tesla around 1891. It is used to produce high-voltage, low-current, high frequency alternating-current electricity. Tesla coils can produce higher voltages than electrostatic machines, which are another source of artificial high-voltage discharges. Tesla experimented with a number of different configurations consisting of two, or sometimes three, coupled resonant electric circuits. Tesla used these coils to conduct innovative experiments in electrical lighting, phosphorescence, X-ray generation, high frequency alternating current phenomena, electrotherapy, and the transmission of electrical energy without wires. Tesla coil circuits were used commercially in sparkgap radio transmitters for wireless telegraphy until the 1920s, and in medical equipment such as electrotherapy and violet ray devices. Theory History 1902 design Tesla coil (discharge).