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Warren Marrison
Warren A. Marrison (21 May 1896 – 27 March 1980) was a Canadian engineer and inventor. Marrison was the co-inventor of the first Quartz clock in 1927.type(he made a clock) Early life and education Marrison was born in Inverary, Frontenac county, Ontario. He studied at Queen's University in Kingston, Ontario, where he was part of a new program in engineering physics. He graduated in 1920 with a bachelor's degree in physics engineering; his studies were interrupted by World War I when he served in the Royal Flying Corps as a radio technician. Beginning in 1921, he studied at Harvard University, ultimately receiving a master's degree. He worked at first for Western Electric in New York City, but moved to Bell Laboratories in New York beginning in 1925. Quartz clock At Bell Labs in New York, Marrison was working on frequency standards using quartz as a reference. It was in 1927 that he developed the first quartz clock while working with J.W. Horton. The clock used a block of crys ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Inverary, Ontario
Inverary is a Compact Rural Community and unincorporated place in South Frontenac, Frontenac County in eastern Ontario, Canada. The community was originally called Storrington post office in 1845, for (the now) geographic Storrington Township in which the community lies. It was renamed to Inverary in 1856 by landowner James Campbell after Inveraray, his ancestral home in Scotland, before being officially incorporated in 1860. Education The Limestone District School Board operates two elementary school A primary school (in Ireland, India, the United Kingdom, Australia, New Zealand, Trinidad and Tobago, Jamaica, South Africa, and Singapore), elementary school, or grade school (in North America and the Philippines) is a school for primary ...s in the area: Perth Road Public School and Storrington Public School. Postal services A post office at 4048 Perth Road in Inverary has two rural routes, as well as general delivery and post office box service. The postal code for ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Clockmakers Company
The Worshipful Company of Clockmakers was established under a Royal Charter granted by King Charles I in 1631. It ranks sixty-first among the livery companies of the City of London, and comes under the jurisdiction of the Privy Council. The company established a library and its museum in 1813, which is the oldest specific collection of clocks and watches worldwide. This is administered by the company's affiliated charity, the Clockmakers' Charity, and is presently housed on the second floor of London's Science Museum. The modern aims of the company and its museum are charitable and educational, in particular to promote and preserve clockmaking and watchmaking, which as of 2019 were added to the HCA Red List of Endangered Crafts. The Clockmakers' Museum, comprising a collection of clocks, watches, portraits and ephemera is housed in a new gallery provided by the Science Museum, officially opened by Princess Anne on 22 October 2015. The museum was first established in 1813, a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Queen's University At Kingston Alumni
Queens is a borough of New York City. Queens or Queen's may also refer to: Arts and entertainment * Queens (group), a Polish musical group * "Queens" (song), a 2018 song by Saara Aalto * ''Queens'' (novel), by Stephen Pickles, 1984 * "Queens", a song by Caravan Palace from '' Panic'', 2012 * ''The Queens'', the third novel in a planned trilogy in the Ender's Game series * ''Queens'' (film), 2005 Spanish film * ''The Queens'' (2015 film), a Chinese romance film based on the novel of the same name * The Queens (2019 film), Canadian documentary film * ''Queens'' (American TV series), an American musical drama television series 2021–2022 * ''Queen's'' (TV series), 2007 * ''The Queens'' (TV series), a 2008 Chinese historical drama * '' Queens: The Virgin and the Martyr'', a Spanish and British historical drama television series * Queens (''Bluey''), an episode of the 2018 television series ''Bluey'' * Queen's Theatre (other) Places * Queens, West Virginia, U.S. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
People From Frontenac County
The term "the people" refers to the public or common mass of people of a polity. As such it is a concept of human rights law, international law as well as constitutional law, particularly used for claims of popular sovereignty. In contrast, a people is any plurality of persons considered as a whole. Used in politics and law, the term "a people" refers to the collective or community of an ethnic group or nation. Concepts Legal Chapter One, Article One of the Charter of the United Nations states that "peoples" have the right to self-determination. Though the mere status as peoples and the right to self-determination, as for example in the case of Indigenous peoples (''peoples'', as in all groups of indigenous people, not merely all indigenous persons as in ''indigenous people''), does not automatically provide for independent sovereignty and therefore secession. Indeed, judge Ivor Jennings identified the inherent problems in the right of "peoples" to self-determination, as i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Canadian Inventors
Canadians () are people identified with the country of Canada. This connection may be residential, legal, historical or cultural. For most Canadians, many (or all) of these connections exist and are collectively the source of their being ''Canadian''. Canada is a multilingual and multicultural society home to people of groups of many different ethnic, religious, and national origins, with the majority of the population made up of Old World immigrants and their descendants. Following the initial period of French and then the much larger British colonization, different waves (or peaks) of immigration and settlement of non-indigenous peoples took place over the course of nearly two centuries and continue today. Elements of Indigenous, French, British, and more recent immigrant customs, languages, and religions have combined to form the culture of Canada, and thus a Canadian identity and Canadian values. Canada has also been strongly influenced by its linguistic, geographic, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1980 Deaths
Events January * January 4 – U.S. President Jimmy Carter proclaims a grain embargo against the USSR with the support of the European Commission. * January 6 – Global Positioning System time epoch begins at 00:00 UTC. * January 9 – In Saudi Arabia, 63 Islamist insurgents are beheaded for their part in the siege of the Great Mosque in Mecca in November 1979. * January 14 – Congress (I) party leader, Indira Gandhi returns to power as the Prime Minister of India. * January 20 – At least 200 people are killed when the Corralejas Bullring collapses at Sincelejo, Colombia. * January 21 – The London Gold Fixing hits its highest price ever of $843 per troy ounce ($2,249.50 in 2020 when adjusted for inflation). * January 22 – Andrei Sakharov, Soviet scientist and human rights activist, is arrested in Moscow. * January 26 – Israel and Egypt establish diplomatic relations. * January 27 – Canadian Caper: Six United States diplomats, posing as Canadians, mana ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1896 Births
Events January * January 2 – The Jameson Raid comes to an end as Jameson surrenders to the Boers. * January 4 – Utah is admitted as the 45th U.S. state. * January 5 – An Austrian newspaper reports Wilhelm Röntgen's discovery, last November, of a type of electromagnetic radiation, later known as X-rays. * January 6 – Cecil Rhodes is forced to resign as Prime Minister of the Cape Colony, Cape of Good Hope for his involvement in the Jameson Raid. * January 7 – American culinary expert Fannie Farmer publishes her first cookbook. * January 12 – H. L. Smith takes the first X-ray photograph. * January 16 – Devonport High School for Boys is founded in Plymouth (England). * January 17 – Anglo-Ashanti wars#Fourth Anglo-Ashanti War (1895–1896), Fourth Anglo-Ashanti War: British British Army, redcoats enter the Ashanti people, Ashanti capital, Kumasi, and Asantehene Agyeman Prempeh I is deposed. * January 28 – Walter Arnold, of E ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Inventors Hall Of Fame
The National Inventors Hall of Fame (NIHF) is an American not-for-profit organization, founded in 1973, which recognizes individual engineers and inventors who hold a US patent of significant technology. Besides the Hall of Fame, it also operates a museum in Alexandria, Virginia, sponsors educational programs, and a collegiate competition. As of 2025, 652 inventors have been inducted, mostly constituting historic persons from the past three centuries, but also including living inductees. Nominees must hold a US patent of significant contribution to the US welfare, and which advances science and useful arts. History The National Inventors Hall of Fame was founded in 1973 on the initiative of H. Hume Mathews, then the chairman of the National Council of Patent Law Associations (now the National Council of Intellectual Property Law Associations). It was launched by Ed Sobey, who was also the first director. In 1974, it gained a major sponsor in the U.S. Patent and Trademark O ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Synchronous Motor
A synchronous electric motor is an AC electric motor in which, at steady state, the rotation of the shaft is synchronized with the frequency of the supply current; the rotation period is exactly equal to an integer number of AC cycles. Synchronous motors use electromagnets as the stator of the motor which create a magnetic field that rotates in time with the oscillations of the current. The rotor with permanent magnets or electromagnets turns in step with the stator field at the same rate and as a result, provides the second synchronized rotating magnet field. Doubly fed synchronous motors use independently-excited multiphase AC electromagnets for both rotor and stator. Synchronous and induction motors are the most widely used AC motors. Synchronous motors rotate at a rate locked to the line frequency since they do not rely on induction to produce the rotor's magnetic field. Induction motors require '' slip'': the rotor must rotate at a frequency slightly slower than th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Horology
Chronometry or horology () is the science studying the measurement of time and timekeeping. Chronometry enables the establishment of standard measurements of time, which have applications in a broad range of social and scientific areas. ''Horology'' usually refers specifically to the study of mechanical timekeeping devices, while ''chronometry'' is broader in scope, also including biological behaviours with respect to time (biochronometry), as well as the dating of geological material (geochronometry). Horology is commonly used specifically with reference to the mechanical instruments created to keep time: clocks, watches, clockwork, sundials, hourglasses, Water clock, clepsydras, timers, time recorders, marine chronometers, and atomic clocks are all examples of Measuring instrument, instruments used to measure time. People interested in horology are called ''horologists''. That term is used both by people who deal professionally with timekeeping apparatuses, as well as enthus ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
New York State
New York, also called New York State, is a state in the northeastern United States. Bordered by New England to the east, Canada to the north, and Pennsylvania and New Jersey to the south, its territory extends into both the Atlantic Ocean and the Great Lakes. New York is the fourth-most populous state in the United States, with nearly 20 million residents, and the 27th-largest state by area, with a total area of . New York has a varied geography. The southeastern part of the state, known as Downstate, encompasses New York City, the most populous city in the United States; Long Island, with approximately 40% of the state's population, the nation's most populous island; and the cities, suburbs, and wealthy enclaves of the lower Hudson Valley. These areas are the center of the expansive New York metropolitan area and account for approximately two-thirds of the state's population. The larger Upstate area spreads from the Great Lakes to Lake Champlain and includes the Adiro ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Royal Flying Corps Canada
The Royal Flying Corps Canada (RFC Canada) was a training organization of the British Royal Flying Corps located in Canada during the First World War. It began operating in 1917. Background As the war progressed, Great Britain found that it needed more trained aircrew and more training facilities. Training was provided both by the ''Curtiss Aviation School'' at Long Branch near Toronto (land plane training) and Hanlan's Point on Toronto Island (for flying boat training), and in the United States. The British realized that thousands of Canadians and Americans had joined British flying operations and more wanted to join, so it made sense to open British air training stations in Canada. Canada also had space for such facilities. After much negotiation with the Canadian government, the RFC, commanded in Canada by Lieutenant-Colonel (later Brigadier-General) Cuthbert Hoare, began operating several training stations in southern Ontario. Training Stations were opened at Camp Bor ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
