|
Robert G. Brown
Robert G. Brown Jr. (1857 - aft. 1940) was an American engineer who invented the first telephone handset, in 1878. The Gold and Stock Exchange in New York used a few of the handsets. They were not accepted by the Bell Company until nearly fifty years later, when they began being used in the United States. Robert G. Brown graduated from Brooklyn Collegiate and Polytechnic Institute (which became what's today known as NYU Tandon School of Engineering The New York University Tandon School of Engineering (commonly referred to as Tandon) is the engineering and applied sciences school of New York University. Tandon is the second oldest private engineering and technology school in the United Sta ...) in 1868. Europe connection Brown went to France with the hope that there would be more receptivity to his idea. In 1879, the Société Générale des Téléphones produced a telephone using Brown's handset design, which became popular in Europe. Notes {{DEFAULTSORT:Brown, Robert G. 1 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Handset
A handset is a component of a telephone that a user holds to the ear and mouth to receive audio through the receiver and speak to the remote party using the built-in transmitter. In earlier telephones, the transmitter was mounted directly on the telephone itself, which was attached to a wall at a convenient height or placed on a desk or table. Until the advent of the cordless telephone, the handset was usually wired to the base unit, typically by a flexible tinsel wire. The handset of a cordless telephone contains a radio transceiver which relays communication via a base station that is wired to the telephone line. A mobile phone does not require a base station and communicates directly with a cell site in designated frequency bands. Handset symbol A graphic symbol that designates a handset is used on cordless and mobile phones to specify placing or ending a telephone call. Usually a button with green upright (off-hook) handset icon is used for starting a call, and a r ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
NYSE Euronext
NYSE Euronext, Inc. was a transatlantic multinational financial services corporation that operated multiple securities exchanges, including the New York Stock Exchange, Euronext and NYSE Arca (formerly known as ArcaEx). NYSE merged with Archipelago Holdings on March 7, 2006, forming NYSE Group, Inc. On April 4, 2007, NYSE Group, Inc. merged with Euronext N.V. to form the first global equities exchange, with its headquarters in Lower Manhattan. The corporation was then acquired by Intercontinental Exchange, which subsequently spun off Euronext. Overview NYSE Euronext offers a broad and growing array of financial products and services in cash equities, futures, options, exchange-traded products (ETPs), bonds, market data, and commercial technology. Spanning multiple asset classes and six countries, the company's exchanges include the New York Stock Exchange, Liffe, Euronext and NYSE Arca. With more than 8,000 listed issues (which includes 90% of the Dow Jones Industrial Average ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bell Telephone Company
The Bell Telephone Company, a common law joint stock company, was organized in Boston, Massachusetts, on July 9, 1877, by Alexander Graham Bell's father-in-law Gardiner Greene Hubbard, who also helped organize a sister company – the New England Telephone and Telegraph Company. The Bell Telephone Company was started on the basis of holding "potentially valuable patents", principally Bell's master telephone patent #174465. Upon its inception, the Bell Telephone Company was organized with Hubbard as "trustee", although he was additionally its ''de facto'' president, since he also controlled his daughter's shares by power of attorney, and with Thomas Sanders, its principal financial backer, as treasurer. The two companies merged on February 17, 1879, to form two new entities, the National Bell Telephone Company of Boston, and the International Bell Telephone Company, soon after established by Hubbard and which became headquartered in Brussels, Belgium.Huurdeman, Anton A''The Worldw ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Polytechnic Institute Of New York University
The New York University Tandon School of Engineering (commonly referred to as Tandon) is the engineering and applied sciences school of New York University. Tandon is the second oldest private engineering and technology school in the United States. The school dates back to 1854 when its predecessor institutions, the University of the City of New York School of Civil Engineering and Architecture and the Brooklyn Collegiate and Polytechnic Institute, were founded. The school was renamed in 2015 in honor of NYU Trustees Chandrika and Ranjan Tandon following their donation of $100 million to the school. The school's main campus is in Brooklyn's MetroTech Center, an urban academic-industrial research park. It is one of several engineering schools that were founded based on a European polytechnic university model in the 1800s, in response to the increasing industrialization of the United States. It has been a key center of research in the development of microwave, wireless, radar, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1920 Deaths
Nineteen or 19 may refer to: * 19 (number), the natural number following 18 and preceding 20 * one of the years 19 BC, AD 19, 1919, 2019 Films * ''19'' (film), a 2001 Japanese film * ''Nineteen'' (film), a 1987 science fiction film Music * 19 (band), a Japanese pop music duo Albums * ''19'' (Adele album), 2008 * ''19'', a 2003 album by Alsou * ''19'', a 2006 album by Evan Yo * ''19'', a 2018 album by MHD * ''19'', one half of the double album ''63/19'' by Kool A.D. * ''Number Nineteen'', a 1971 album by American jazz pianist Mal Waldron * ''XIX'' (EP), a 2019 EP by 1the9 Songs * "19" (song), a 1985 song by British musician Paul Hardcastle. * "Nineteen", a song by Bad4Good from the 1992 album ''Refugee'' * "Nineteen", a song by Karma to Burn from the 2001 album ''Almost Heathen''. * "Nineteen" (song), a 2007 song by American singer Billy Ray Cyrus. * "Nineteen", a song by Tegan and Sara from the 2007 album '' The Con''. * "XIX" (song), a 2014 song by Slipkno ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Telephony
Telephony ( ) is the field of technology involving the development, application, and deployment of telecommunication services for the purpose of electronic transmission of voice, fax, or data, between distant parties. The history of telephony is intimately linked to the invention and development of the telephone. Telephony is commonly referred to as the construction or operation of telephones and telephonic systems and as a system of telecommunications in which telephonic equipment is employed in the transmission of speech or other sound between points, with or without the use of wires. The term is also used frequently to refer to computer hardware, software, and computer network systems, that perform functions traditionally performed by telephone equipment. In this context the technology is specifically referred to as Internet telephony, or voice over Internet Protocol (VoIP). Overview The first telephones were connected directly in pairs. Each user had a separate telephone wired ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
19th-century American Inventors
The 19th (nineteenth) century began on 1 January 1801 ( MDCCCI), and ended on 31 December 1900 ( MCM). The 19th century was the ninth century of the 2nd millennium. The 19th century was characterized by vast social upheaval. Slavery was abolished in much of Europe and the Americas. The First Industrial Revolution, though it began in the late 18th century, expanding beyond its British homeland for the first time during this century, particularly remaking the economies and societies of the Low Countries, the Rhineland, Northern Italy, and the Northeastern United States. A few decades later, the Second Industrial Revolution led to ever more massive urbanization and much higher levels of productivity, profit, and prosperity, a pattern that continued into the 20th century. The Islamic gunpowder empires fell into decline and European imperialism brought much of South Asia, Southeast Asia, and almost all of Africa under colonial rule. It was also marked by the collapse of the large S ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Year Of Birth Uncertain
A year or annus is the orbital period of a planetary body, for example, the Earth, moving in Earth's orbit, its orbit around the Sun. Due to the Earth's axial tilt, the course of a year sees the passing of the seasons, marked by change in weather, the hours of daylight, and, consequently, vegetation and soil fertility. In temperate and subpolar climate, subpolar regions around the planet, four seasons are generally recognized: spring (season), spring, summer, autumn and winter. In tropics, tropical and subtropics, subtropical regions, several geographical sectors do not present defined seasons; but in the tropics#Seasons and climate, seasonal tropics, the annual wet season, wet and dry seasons are recognized and tracked. A calendar year is an approximation of the number of days of the Earth's orbital period, as counted in a given calendar. The Gregorian calendar, or modern calendar, presents its calendar year to be either a common year of 365 days or a leap year of 366 days, a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
