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Almon Brown Strowger
Almon Brown Strowger (February 11, 1839 – May 26, 1902) was an American inventor who gave his name to the Strowger switch, an electromechanical telephone exchange technology that his invention and patent inspired. Early years Strowger was born in Penfield, New York, near Rochester, the grandson of the second settler and first miller in Penfield. Little is known about his early life. It is said that if his mother gave her children a task, Strowger and his brothers would often try to devise a machine to do the task for them. He taught school in Penfield for a time, and served in the 8th New York Volunteer Cavalry during the American Civil War. It is believed that he fought in the Second Battle of Bull Run near Manassas, Virginia. After the Civil War, it appears he first became a country school teacher before he became an undertaker. He is variously attributed as living in El Dorado, Kansas, or Topeka, Kansas, and finally Kansas City, Missouri. It is not clear where his idea of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Penfield, New York
Penfield is a town in Monroe County, New York, United States. The population was 36,242 at the 2010 census. The town was incorporated in 1810 by the proprietor Daniel Penfield, who purchased the town lands in 1795 and moved to the area in 1809. His house still stands at 1784 Penfield Road. Penfield is a suburb of Rochester. The town's motto is "A Town of Planned Progress". Geography According to the United States Census Bureau, the town has a total area of , of which is land and (1.11%) is water. Penfield is surrounded in all four directions by neighboring towns. To the north is Webster, to the south is Perinton, to the east is Walworth (Wayne County), and to the west are Irondequoit and Brighton. Geographically, Penfield includes a number of parks with a variety of terrain, water features, lodges and shelters, open spaces, and athletic facilities. * Athletic Fields * Abraham Lincoln Park * Channing H Philbrick Park (formerly Linear Park) * Ellison Park * Greenwood Park * ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
La Porte, Indiana
La Porte (French for "The Door") is a city in LaPorte County, Indiana, United States, of which it is the county seat. Its population was estimated to be 21,341 in 2022. It is one of the two principal cities of the Michigan City-La Porte, Indiana Metropolitan Statistical Area, which is included in the Chicago–Naperville–Michigan City, Illinois–Indiana–Wisconsin Combined Statistical Area. La Porte is located in northwest Indiana, east of Gary, and west of South Bend. It was first settled by European Americans in 1832. The city is twinned with Grangemouth in Scotland. History The settlement of La Porte was established in July 1832. Abraham P. Andrew, one of the purchasers of the site, constructed the first sawmill in that year. The first settler arrived in October, building a permanent cabin just north of what would become the courthouse square. After the US extinguished land claims by the Potowatomi and other historic tribes of the area by treaty and removal to India ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Telephone Exchange
A telephone exchange, telephone switch, or central office is a telecommunications system used in the public switched telephone network (PSTN) or in large enterprises. It interconnects telephone subscriber lines or virtual circuits of digital systems to establish telephone calls between subscribers. In historical perspective, telecommunication terms have been used with different semantics over time. The term ''telephone exchange'' is often used synonymously with ''central office'', a Bell System term. Often, a ''central office'' is defined as a building used to house the inside plant equipment of potentially several telephone exchanges, each serving a certain geographical area. Such an area has also been referred to as the exchange or exchange area. In North America, a central office location may also be identified as a ''wire center'', designating a facility to which a telephone is connected and obtains dial tone. For business and billing purposes, telecommunication carriers defi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Strowger (other)
{{disambiguation ...
Strowger may refer to: * Strowger switch, automatic telephone exchange equipment * Strowger Automatic Telephone Exchange Company, the company that manufactured Strowger switches * Almon Brown Strowger (1839–1902), who invented the principle of the Strowger switch in 1888 See also * Stroger (other) The following things all have the name Stroger: People * Bob Stroger, American blues singer and bassist * John Stroger, first African-American president of the Cook County Board of Commissioners * Todd Stroger, Cook County board president, son of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rotary Dial
A rotary dial is a component of a telephone or a telephone switchboard that implements a signaling technology in telecommunications known as pulse dialing. It is used when initiating a telephone call to transmit the destination telephone number to a telephone exchange. On the rotary dial, the digits are arranged in a circular layout, with one finger hole in the finger wheel for each digit. For dialing a digit, the wheel is rotated against spring tension with one finger positioned in the corresponding hole, pulling the wheel with the finger to a stop position given by a mechanical barrier, the finger stop. When released at the finger stop, the wheel returns to its home position driven by the spring at a speed regulated by a governor device. During this return rotation, an electrical switch interrupts the direct current (DC) of the telephone line (local loop) the specific number of times associated with each digit and thereby generates electrical pulses which the telephone exchang ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Locomotive
A locomotive or engine is a rail transport vehicle that provides the Power (physics), motive power for a train. If a locomotive is capable of carrying a payload, it is usually rather referred to as a multiple unit, Motor coach (rail), motor coach, railcar or power car; the use of these self-propelled vehicles is increasingly common for passenger trains, but rare for freight (see CargoSprinter). Traditionally, locomotives pulled trains from the front. However, Push-pull train, push-pull operation has become common, where the train may have a locomotive (or locomotives) at the front, at the rear, or at each end. Most recently railroads have begun adopting DPU or distributed power. The front may have one or two locomotives followed by a mid-train locomotive that is controlled remotely from the lead unit. __TOC__ Etymology The word ''locomotive'' originates from the Latin language, Latin 'from a place', Ablative case, ablative of 'place', and the Medieval Latin 'causing mot ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
United States Telecom Association
The United States Telecom Association (USTelecom) is an organization that represents telecommunications-related businesses based in the United States. As a trade association, it represent the converged interests of the country's telecommunications industry. Member companies represent a diverse set of communications-related businesses, including those that provide wireless, Internet, cable television, long distance, local exchange, and voice services. Members include large publicly traded communications carriers as well as small telephone cooperatives that serve only a few hundred customers in urban and rural areas. The organization was founded as the Independent Telephone Association of America in 1897, and represented the telecommunication industry of North America that was not affiliated with the Bell System led by the American Telephone and Telegraph Company (AT&T). History The United States Telecom Association (USTelecom) was founded in Chicago, Illinois, on May 17, 1897, when ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tampa, Florida
Tampa () is a city on the Gulf Coast of the United States, Gulf Coast of the U.S. state of Florida. The city's borders include the north shore of Tampa Bay and the east shore of Old Tampa Bay. Tampa is the largest city in the Tampa Bay area and the County seat, seat of Hillsborough County, Florida, Hillsborough County. With a population of 384,959 according to the 2020 census, Tampa is the third-most populated city in Florida after Jacksonville, Florida, Jacksonville and Miami and is the List of United States cities by population, 52nd most populated city in the United States. Tampa functioned as a military center during the 19th century with the establishment of Fort Brooke. The cigar industry was also brought to the city by Vicente Martinez Ybor, Vincente Martinez Ybor, after whom Ybor City is named. Tampa was formally reincorporated as a city in 1887, following the American Civil War, Civil War. Today, Tampa's economy is driven by tourism, health care, finance, insurance, tec ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Headstone
A headstone, tombstone, or gravestone is a stele or marker, usually stone, that is placed over a grave. It is traditional for burials in the Christian, Jewish, and Muslim religions, among others. In most cases, it has the deceased's name, date of birth, and date of death inscribed on it, along with a personal message, or prayer, but may contain pieces of funerary art, especially details in stone relief. In many parts of Europe, insetting a photograph of the deceased in a frame is very common. Use The stele (plural stelae), as it is called in an archaeological context, is one of the oldest forms of funerary art. Originally, a tombstone was the stone lid of a stone coffin, or the coffin itself, and a gravestone was the stone slab that was laid over a grave. Now, all three terms are also used for markers placed at the head of the grave. Some graves in the 18th century also contained footstones to demarcate the foot end of the grave. This sometimes developed into full kerb ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pinellas County, Florida
Pinellas County (, ) is a county located on the west central coast of the U.S. state of Florida. As of the 2020 census, the population was 959,107. The county is part of the Tampa– St. Petersburg– Clearwater, Florida Metropolitan Statistical Area. Clearwater is the county seat. St. Petersburg is the largest city as well as the largest city in Florida that is not a county seat. History Pre-European settlement When Europeans first reached the Pinellas peninsula, the Tampa Bay area was inhabited by people of the Safety Harbor culture. The Safety Harbor culture area was divided into chiefdoms. One documented chiefdom in what is now Pinellas County was that of the Tocobaga, who occupied a town and large temple mound, the Safety Harbor site, overlooking the bay in what is now Safety Harbor. The modern site is protected and can be visited as part of the County's Philippe Park. Spanish and British Florida During the early 16th century Spanish explorers discovered and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Anemia
Anemia or anaemia (British English) is a blood disorder in which the blood has a reduced ability to carry oxygen due to a lower than normal number of red blood cells, or a reduction in the amount of hemoglobin. When anemia comes on slowly, the symptoms are often vague, such as tiredness, weakness, shortness of breath, headaches, and a reduced ability to exercise. When anemia is acute, symptoms may include confusion, feeling like one is going to pass out, loss of consciousness, and increased thirst. Anemia must be significant before a person becomes noticeably pale. Symptoms of anemia depend on how quickly hemoglobin decreases. Additional symptoms may occur depending on the underlying cause. Preoperative anemia can increase the risk of needing a blood transfusion following surgery. Anemia can be temporary or long term and can range from mild to severe. Anemia can be caused by blood loss, decreased red blood cell production, and increased red blood cell breakdown. Causes o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aneurysm
An aneurysm is an outward bulging, likened to a bubble or balloon, caused by a localized, abnormal, weak spot on a blood vessel wall. Aneurysms may be a result of a hereditary condition or an acquired disease. Aneurysms can also be a nidus (starting point) for clot formation (thrombosis) and embolization. As an aneurysm increases in size, the risk of rupture, which leads to uncontrolled bleeding, increases. Although they may occur in any blood vessel, particularly lethal examples include aneurysms of the Circle of Willis in the brain, aortic aneurysms affecting the thoracic aorta, and abdominal aortic aneurysms. Aneurysms can arise in the heart itself following a heart attack, including both ventricular and atrial septal aneurysms. There are congenital atrial septal aneurysms, a rare heart defect. Etymology The word is from Greek: ἀνεύρυσμα, aneurysma, "dilation", from ἀνευρύνειν, aneurynein, "to dilate". Classification Aneurysms are classified by type, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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