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Sellers Family Of Scientists
The Sellers family of Philadelphia and Delaware County, Pennsylvania, are a family of scientists and engineers. More members of the Sellers family and the closely related Peale family have belonged to the American Philosophical Society than any other family in the history of the United States, and the same is true of the Academy of Natural Sciences, the Franklin Institute, and the Pennsylvania Academy of the Fine Arts. Notable members Among the best-known members of the Sellers family are: John Sellers (1728–1804) observer of the transit of Venus; William Sellers (1824–1905) designer of the standard screw thread; George Eschol Sellers (1808–1899) designer of the Panama Railway, Coleman Sellers (1827–1907) inventor of the cinema and developer of hydroelectric technology; Horace Wells Sellers (1857–1933) restorer of Independence Hall; and Peter Hoadley Sellers (1930–2014) deviser of the mathematical algorithms used to decode DNA. The landscape painter Anna Sellers (182 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Philadelphia
Philadelphia, often called Philly, is the largest city in the Commonwealth of Pennsylvania, the sixth-largest city in the U.S., the second-largest city in both the Northeast megalopolis and Mid-Atlantic regions after New York City. Since 1854, the city has been coextensive with Philadelphia County, the most populous county in Pennsylvania and the urban core of the Delaware Valley, the nation's seventh-largest and one of world's largest metropolitan regions, with 6.245 million residents . The city's population at the 2020 census was 1,603,797, and over 56 million people live within of Philadelphia. Philadelphia was founded in 1682 by William Penn, an English Quaker. The city served as capital of the Pennsylvania Colony during the British colonial era and went on to play a historic and vital role as the central meeting place for the nation's founding fathers whose plans and actions in Philadelphia ultimately inspired the American Revolution and the nation's inde ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Belper
Belper is a town and civil parish in the local government district of Amber Valley in Derbyshire, England, located about north of Derby on the River Derwent. As well as Belper itself, the parish also includes the village of Milford and the hamlets of Bargate, Blackbrook and Makeney. As of the 2011 Census, the parish had a population of 21,823. Originally a centre for the nail-making industry since Medieval times, Belper expanded during the early Industrial Revolution to become one of the first mill towns with the establishment of several textile mills; as such, it forms part of the Derwent Valley Mills World Heritage Site. History At the time of the Norman occupation, Belper was part of the land centred on Duffield held by the family of Henry de Ferrers. The Domesday Book of 1086 records a manor of "Bradley" which is thought to have stood in an area of town now known as the Coppice. At that time it was probably within the Forest of East Derbyshire which covered the whole of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kinematoscope
The Kinematoscope (a.k.a. Motoscope) was patented in 1861 (United States Patent 31357), a protean development in the history of cinema. The invention aimed to present the illusion of motion. The patent was filed by Coleman Sellers of Philadelphia, Pennsylvania as an "improvement in exhibiting stereoscopic Stereoscopy (also called stereoscopics, or stereo imaging) is a technique for creating or enhancing the depth perception, illusion of depth in an image by means of stereopsis for binocular vision. The word ''stereoscopy'' derives . Any stere ... pictures". Coleman applied stereoscopy to the existing principle of toy phantasmascopes using rotating discs. A series of still stereographic images with successive stages of action were mounted on blades of a spinning paddle and viewed through slits. The slits passed under a stereoscopic viewer. The pictures were visible within a cabinet, and were not projected onto a screen. References Audiovisual introductions in 1861 H ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
American Society Of Mechanical Engineers
The American Society of Mechanical Engineers (ASME) is an American professional association that, in its own words, "promotes the art, science, and practice of multidisciplinary engineering and allied sciences around the globe" via "continuing education, training and professional development, codes and standards, research, conferences and publications, government relations, and other forms of outreach." ASME is thus an engineering society, a standards organization, a research and development organization, an advocacy organization, a provider of training and education, and a nonprofit organization. Founded as an engineering society focused on mechanical engineering in North America, ASME is today multidisciplinary and global. ASME has over 85,000 members in more than 135 countries worldwide. ASME was founded in 1880 by Alexander Lyman Holley, Henry Rossiter Worthington, John Edison Sweet and Matthias N. Forney in response to numerous steam boiler pressure vessel failures. Kno ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Frederick Winslow Taylor
Frederick Winslow Taylor (March 20, 1856 – March 21, 1915) was an American mechanical engineer. He was widely known for his methods to improve industrial efficiency. He was one of the first management consultants. In 1909, Taylor summed up his efficiency techniques in his book ''The Principles of Scientific Management'' which, in 2001, Fellows of the Academy of Management voted the most influential management book of the twentieth century. His pioneering work in applying engineering principles to the work done on the factory floor was instrumental in the creation and development of the branch of engineering that is now known as industrial engineering. Taylor made his name, and was most proud of his work, in scientific management; however, he made his fortune patenting steel-process improvements. As a result, scientific management is sometimes referred to as ''Taylorism''. Biography Taylor was born in 1856 to a Quaker family in Germantown, Philadelphia, Pennsylvania. Taylor's f ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pennsylvania Constitution
The Constitution of Pennsylvania is the supreme law within the Commonwealth of Pennsylvania. All acts of the General Assembly, the governor, and each governmental agency are subordinate to it. Since 1776, Pennsylvania's Constitution has undergone five versions. The current Constitution entered into force in 1968, and has been amended numerous times. The Constitution may only be amended if a proposed modification receives a majority vote of two consecutive sessions of the General Assembly and then is approved by the electorate. Emergency amendments are permitted by a vote of two-thirds of the General Assembly and an affirmative vote by the electorate within one month. In such emergency situations, commonwealth election officials are required to publish notice of the referendum on a proposed amendment in a minimum of two newspapers in every county. In an event that more than one emergency amendment is proposed, each additional amendment is to be voted on separately. The Constitut ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
David Rittenhouse
David Rittenhouse (April 8, 1732 – June 26, 1796) was an American astronomer, inventor, clockmaker, mathematician, surveyor, scientific instrument craftsman, and public official. Rittenhouse was a member of the American Philosophical Society and the first director of the United States Mint. Biography David Rittenhouse was born on April 8, 1732, in Roxborough Township, Philadelphia County, near a small village within Philadelphia called Rittenhousetown. This village is located near Germantown, along the stream Paper Mill Run, which is a tiny tributary of the Wissahickon Creek. When his uncle, William Rittenhouse, died, David inherited his uncle's carpentry tools and instructional books. At a young age, David showed a high level of intelligence by creating a working scale model of his great-grandfather William Rittenhouse's paper mill. He built other scale models in his youth, like a working waterwheel. David never attended elementary school—he was self-taught from his f ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Quakers
Quakers are people who belong to a historically Protestant Christian set of denominations known formally as the Religious Society of Friends. Members of these movements ("theFriends") are generally united by a belief in each human's ability to experience the light within or see "that of God in every one". Some profess a priesthood of all believers inspired by the First Epistle of Peter. They include those with evangelical, holiness, liberal, and traditional Quaker understandings of Christianity. There are also Nontheist Quakers, whose spiritual practice does not rely on the existence of God. To differing extents, the Friends avoid creeds and hierarchical structures. In 2017, there were an estimated 377,557 adult Quakers, 49% of them in Africa. Some 89% of Quakers worldwide belong to ''evangelical'' and ''programmed'' branches that hold services with singing and a prepared Bible message coordinated by a pastor. Some 11% practice ''waiting worship'' or ''unprogramme ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Worsted
Worsted ( or ) is a high-quality type of wool yarn, the fabric made from this yarn, and a yarn weight category. The name derives from Worstead, a village in the English county of Norfolk. That village, together with North Walsham and Aylsham, formed a manufacturing centre for yarn and cloth in the 12th century, when pasture enclosure and liming rendered the East Anglian soil too rich for the older agrarian sheep breeds. In the same period, many weavers from the County of Flanders moved to Norfolk. "Worsted" yarns/fabrics are distinct from woollens (though both are made from sheep's wool): the former is considered stronger, finer, smoother, and harder than the latter. Worsted was made from the long-staple pasture wool from sheep breeds such as Teeswaters, Old Leicester Longwool and Romney Marsh. Pasture wool was not carded; instead it was washed, gilled and combed (using heated long-tooth metal combs), oiled and finally spun. When woven, worsteds were scoured but not fulled. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sellers Hall
Sellers Hall, completed in 1684, is one of the oldest buildings in Pennsylvania and is the ancestral home of the Sellers Family of Scientists, Sellers family of scientists and engineers. Samuel Sellers (1655-1732) arrived in Philadelphia in 1682, the first year of Penn's colony. A young man, he was eager to marry, which explains the very early date of the house. He married Anna Gibbons (1655-1743) on August 13, 1684, and moved into Sellers Hall. The Sellers' declaration of intention to marry is the first entry in the minutes of Darby meeting. Samuel Sellers brought with him from Derbyshire in England the technology for making and weaving wire. This technology, and his mills on Cobbs Creek in Upper Darby, became the basis for a series of inventions and mechanical innovations that would lead to the creation of the early Pennsylvania textile industry at Cardington, the North American paper-making industry, and the fire-hose, fire-engine, and locomotive-making industries in Pennsylva ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Millbourne, Pennsylvania
Millbourne is a borough in Delaware County, Pennsylvania, United States. As of the 2020 Census, the population is 1,212. Millbourne borders Philadelphia along Cobbs Creek. The borough was the former site of the Sellers Family's Millbourne Mills. The name of Millbourne Mills comes from the word Mill and "bourne" meaning creek. Millbourne students attend Upper Darby School District schools. Magisterial courts with presiding jurisdiction for Millbourne are also located in Upper Darby. Millbourne, at over 17,000 people per square mile, is the most densely populated incorporated place in Pennsylvania, and 24th in the entire United States. History Millbourne Mills Millbourne Borough was first occupied by Samuel Sellers. The land was used for living and farming for over half a century. His grandson, John Sellers, purchased plots of land in the borough. Before Sellers' death in 1804, he devised his estates to his sons, Nathan, David, John, and George. Sellers devised a plan ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Darby Towship, Pennsylvania
Darby may refer to: Places United States * Darby, Idaho, an unincorporated community * Darby, Montana, a town * Darby, North Carolina, an unincorporated community * Darby Township, Madison County, Ohio * Darby Township, Pickaway County, Ohio * Darby Township, Union County, Ohio * Lake Darby, Ohio * Darby, Pennsylvania, a borough ** Darby station * Darby Township, Delaware County, Pennsylvania * Darby Creek (Pennsylvania), a tributary of the Delaware River Other places * Darby River, Victoria, Australia * Darby Green, Yateley, North East Hampshire, England * Camp Darby, U.S. military camp in Italy * Darby Generating Station, a peaker plant in Pickaway County, Ohio Other uses * Darby (name), a given name and surname, including a list of people with the name, as well as those named D'Arby * Hurricane Darby (other) * USS ''Darby'' (DE-218), US Navy destroyer escort * Darby, New Hampshire, a fictional town in a series of novels by Ernest Hebert * Darby Bible, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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