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Swivel Seat
A swivel, spinny, or revolving chair is a chair with a single central leg that allows the seat to rotate 360 degrees to the left or right. A concept of a rotating chair with swivel castors was illustrated by the Nuremberg patrician Martin Löffelholz von Kolberg in his 1505 technological illuminated manuscript, the so-called Codex Löffelholz, on folio 10r. It is purported that Thomas Jefferson drafted the United States Declaration of Independence in 1776 while sitting on a swivel chair of his own design. Types and examples Swivel chairs may have wheels on the base allowing the user to move the chair around their work area without getting up. This type is common in modern offices and are often also referred to as office chairs. Office swivel chairs, like computer chairs, usually incorporate a gas lift to adjust the height of the seat, but not usually large (e.g. recliner) swiveling armchairs. A draughtsman's chair is a swivel chair without wheels that is usually taller than ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Desk Chair
An office chair, or desk chair, is a type of chair that is designed for use at a desk in an office. It is usually a swivel chair, with a set of wheels for mobility and adjustable height. Modern office chairs typically use a single, distinctive load bearing leg (often called a gas lift), which is positioned underneath the chair seat. Near the floor this leg spreads out into several smaller feet, which are often wheeled and called casters. Office chairs were developed around the mid-19th century as more workers spent their shifts sitting at a desk, leading to the adoption of several features not found on other chairs. Many office activities such as writing or typing involve a forward seat position in front of a work station, emphasizing free use of the arms and hands for reaching and for dexterous activities. Other tasks, such as talking on the telephone, permit a recumbent posture. Static posture, sitting in a single position for long periods of time, places strain on the body an ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bucket Seat
A bucket seat is a car seat contoured to hold one person, distinct from a flat bench seat designed to fit multiple people. In its simplest form it is a rounded seat for one person with high sides, but may have curved sides that partially enclose and support the body in high-performance automobiles. Before the World War II, the term ''Kübelsitzwagen'' (meaning ''bucket-seat car'') became popular in Germany, for light open-topped, cross-country and military vehicles without doors, because these were typically equipped with bucket seats, to help keep occupants on board, in an era before the adoption of seat belts. This body style had first been developed by in 1923. They are typically standard in front in fast cars to keep drivers and other passengers in place when turning at speed. Rear "bucket seats" are typically hybrids of bench and true bucket seats, being contoured generally like the latter but fixed in place, even when divided by a center console, and thus lacking a free-s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bárány Chair
The Barany chair or Bárány chair is a device used for aerospace physiology training, particularly for student pilots. Test The subject is placed in the chair, blindfolded, then spun about the vertical axis while keeping their head upright or tilted forward or to the side. The subject is then asked to perform tasks such as determine their direction of rotation while blindfolded, or rapidly change the orientation of their head, or attempt to point at a stationary object without blindfold after the chair is stopped. The chair is used to demonstrate spatial disorientation effects, proving that the vestibular system is not to be trusted in flight. Pilots are taught that they should instead rely on their flight instruments. Uses The device is also used in motion sickness therapy. Nobel Prize The chair was named for Hungarian physiologist Robert Bárány, who used this device in his research into the role of the inner ear in the sense of balance. This won him the 1914 Nobel pr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Armrest
An armrest is a part of a chair, where a person can rest their arms on. Armrests are built into a large variety of chairs such as automotive chairs, armchairs, sofas, and more. Adjustable armrests are commonly found in ergonomic office chairs. Armrests should support the forearm, which reduces neck and head pain. Office chairs Armrests in office chairs are meant to be adjustable to account for the user's height. This is due to the long hours spent sitting in an office, increasing risks of an ergonomic hazard. Since the introduction of the computer into the workspace, armrests have been more important. Like office chairs, gaming chairs feature an armrest to support the user's arm during gaming sessions. Armchair An armchair is a chair with prominent armrests. Restraints Restraint chairs are chairs with restraints, which allow an individual to be restrained, thereby preventing them from leaving the chair. Such chairs often feature an armrest, which is used to restrain the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
American Philosophical Society
The American Philosophical Society (APS), founded in 1743 in Philadelphia, is a scholarly organization that promotes knowledge in the sciences and humanities through research, professional meetings, publications, library resources, and community outreach. Considered the first learned society in the United States, it has about 1,000 elected members, and by April 2020 had had only 5,710 members since its creation. Through research grants, published journals, the American Philosophical Society Museum, an extensive library, and regular meetings, the society supports a variety of disciplines in the humanities and the sciences. Philosophical Hall, now a museum, is just east of Independence Hall in Independence National Historical Park; it was designated a National Historic Landmark in 1965. History The Philosophical Society, as it was originally called, was founded in 1743 by Benjamin Franklin, James Alexander, Francis Hopkinson, John Bartram, Philip Syng, Jr. and others as ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Monticello
Monticello ( ) was the primary plantation of Founding Father Thomas Jefferson, the third president of the United States, who began designing Monticello after inheriting land from his father at age 26. Located just outside Charlottesville, Virginia, in the Piedmont region, the plantation was originally , with Jefferson using the labor of enslaved Africans for extensive cultivation of tobacco and mixed crops, later shifting from tobacco cultivation to wheat in response to changing markets. Due to its architectural and historic significance, the property has been designated a National Historic Landmark. In 1987, Monticello and the nearby University of Virginia, also designed by Jefferson, were together designated a UNESCO World Heritage Site. The current nickel, a United States coin, features a depiction of Monticello on its reverse side. Jefferson designed the main house using neoclassical design principles described by Italian Renaissance architect Andrea Palladio and rew ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Virginia
Virginia, officially the Commonwealth of Virginia, is a state in the Mid-Atlantic and Southeastern regions of the United States, between the Atlantic Coast and the Appalachian Mountains. The geography and climate of the Commonwealth are shaped by the Blue Ridge Mountains and the Chesapeake Bay, which provide habitat for much of its flora and fauna. The capital of the Commonwealth is Richmond; Virginia Beach is the most-populous city, and Fairfax County is the most-populous political subdivision. The Commonwealth's population was over 8.65million, with 36% of them living in the Baltimore–Washington metropolitan area. The area's history begins with several indigenous groups, including the Powhatan. In 1607, the London Company established the Colony of Virginia as the first permanent English colony in the New World. Virginia's state nickname, the Old Dominion, is a reference to this status. Slave labor and land acquired from displaced native tribes fueled the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Philadelphia
Philadelphia, often called Philly, is the List of municipalities in Pennsylvania#Municipalities, largest city in the Commonwealth (U.S. state), Commonwealth of Pennsylvania, the List of United States cities by population, sixth-largest city in the U.S., the second-largest city in both the Northeast megalopolis and Mid-Atlantic (United States), Mid-Atlantic regions after New York City. Act of Consolidation, 1854, Since 1854, the city has been coextensive with Philadelphia County, Pennsylvania, Philadelphia County, the List of counties in Pennsylvania, most populous county in Pennsylvania and the urban core of the Delaware Valley, the Metropolitan statistical area, nation's seventh-largest and one of List of largest cities, world's largest metropolitan regions, with 6.245 million residents . The city's population at the 2020 United States census, 2020 census was 1,603,797, and over 56 million people live within of Philadelphia. Philadelphia was founded in 1682 by William Penn, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Second Continental Congress
The Second Continental Congress was a late-18th-century meeting of delegates from the Thirteen Colonies that united in support of the American Revolutionary War. The Congress was creating a new country it first named "United Colonies" and in 1776 renamed "United States of America." It convened in Philadelphia on May 10, 1775, with representatives from 12 of the colonies. This came shortly after the Battles of Lexington and Concord and was in succession to the First Continental Congress which met from September 5 to October 26, 1774. The Second Congress functioned as a ''de facto'' national government at the outset of the Revolutionary War by raising armies, directing strategy, appointing diplomats, and writing petitions such as the Declaration of the Causes and Necessity of Taking Up Arms and the Olive Branch Petition. All thirteen colonies were represented by the time the Congress adopted the Lee Resolution which declared independence from Britain on July 2, 1776, and the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sash Window
A sash window or hung sash window is made of one or more movable panels, or "sashes". The individual sashes are traditionally paned windows, but can now contain an individual sheet (or sheets, in the case of double glazing) of glass. History The oldest surviving examples of sash windows were installed in England in the 1670s, for example at Ham House.Louw, HJ, ''Architectural History'', Vol. 26, 1983 (1983), pp. 49–72, 144–15JSTOR The invention of the sash window is sometimes credited, without conclusive evidence, to Robert Hooke. Others see the sash window as a Dutch invention. H.J. Louw believed that the sash window was developed in England, but concluded that it was impossible to determine the exact inventor. The sash window is often found in Georgian and Victorian houses, and the classic arrangement has three panes across by two up on each of two sash, giving a ''six over six'' panel window, although this is by no means a fixed rule. Innumerable late Victorian and E ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Benjamin Randolph (cabinetmaker)
Benjamin Randolph (17211791) was an 18th-century American cabinetmaker who made furniture in the Queen Anne and Philadelphia Chippendale styles. He made the lap desk on which Thomas Jefferson drafted the Declaration of Independence. Biography He was born in Monmouth County, New Jersey. His family, originally named Fitz-Randolph, were Quakers who fled religious persecution in New England and settled in New Jersey and Pennsylvania. He may have apprenticed under the cabinet-joiner John Jones, from whom he rented lodgings. He married Anna Bromwich on February 18, 1762 at St. Paul's Church, Philadelphia, and they had two daughters, Mary and Anna. An inheritance of his wife's enabled them to buy property, and an investment in a French and Indian War privateer may have provided the capital for him to set up his own cabinetry shop in 1764.''Philadelphia: Three Centuries''. His business of supplying lumber and making windows and architectural carvings expanded in 1767, when he bought a sh ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Francis Trumble
Francis Trumble was an 18th-century chair and cabinetmaker in Philadelphia, Pennsylvania. Trumble produced a variety of "fine furniture" in the Queen Anne style furniture, Queen Anne, Thomas Chippendale, Chippendale and Federal (style), Federal styles.John KassaThe book of American Windsor furniture styles and technologies page 30 He also manufactured Windsor chairs that are believed to be the ones used at Independence Hall by the Second Continental Congress, and depicted in paintings of the signing of the United States Declaration of Independence, Declaration of Independence.Digging in the City of Brotherly Love stories from Philadelphia archaeology By Rebecca Yamin page 145 He made them in seven styles and is credited as one of the craftsme ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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