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Hoberman Mechanism
A Hoberman mechanism, or Hoberman linkage, is a deployable mechanism that turns linear motion into radial motion. The Hoberman mechanism is made of two angulated ridged bars connected at a central point by a revolute joint, making it move much like a scissor mechanism. Multiple of these linkages can be joined together at the ends of the angulated bars by more revolute joints, expanding radially to make circle shaped mechanisms. The mechanism is a GAE (generalize angulated element) where the coupler curve is a radial straight line. This allows the Hoberman mechanism to act with a single degree of freedom, meaning that it is an over-constrained mechanism because the mobility formula predicts that it would have a smaller degree of freedom than it does, as the mechanism has more degrees of freedom than the mobility formula predicts. The kinematic theory behind the Hoberman mechanism has been used to help further the understanding of mobility and foldability of deployable mechanisms. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hoberman Mechanism
A Hoberman mechanism, or Hoberman linkage, is a deployable mechanism that turns linear motion into radial motion. The Hoberman mechanism is made of two angulated ridged bars connected at a central point by a revolute joint, making it move much like a scissor mechanism. Multiple of these linkages can be joined together at the ends of the angulated bars by more revolute joints, expanding radially to make circle shaped mechanisms. The mechanism is a GAE (generalize angulated element) where the coupler curve is a radial straight line. This allows the Hoberman mechanism to act with a single degree of freedom, meaning that it is an over-constrained mechanism because the mobility formula predicts that it would have a smaller degree of freedom than it does, as the mechanism has more degrees of freedom than the mobility formula predicts. The kinematic theory behind the Hoberman mechanism has been used to help further the understanding of mobility and foldability of deployable mechanisms. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hoberman 6
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Hoberman is a surname. Notable people with the surname include: *Ben Hoberman (1922–2014), American radio executive *Brent Hoberman, founder of Lastminute.com *Chuck Hoberman, American designer and architect *David Hoberman (born 1952), American film producer * Haggai Hoberman, Israeli journalist and author *J. Hoberman, American film critic *John Hoberman, Professor of Germanic languages at the University of Texas at Austin * John Milton Hoberman, American author * Mary Ann Hoberman (born 1930), American writer *Nicky Hoberman (born 1967), South African artist *Perry Hoberman, American artist See also *Hoberman Arch *Hoberman sphere A Hoberman sphere is an isokinetic structure patented by Chuck Hoberman that resembles a geodesic dome, but is capable of folding down to a fraction of its normal size by the scissor-like action of its joints. Colorful plastic versions have beco ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Olympic Games
The modern Olympic Games or Olympics (french: link=no, Jeux olympiques) are the leading international sporting events featuring summer and winter sports competitions in which thousands of athletes from around the world participate in a variety of competitions. The Olympic Games are considered the world's foremost sports competition with more than 200 teams, representing sovereign states and territories, participating. The Olympic Games are normally held every four years, and since 1994, have alternated between the Summer and Winter Olympics every two years during the four-year period. Their creation was inspired by the ancient Olympic Games (), held in Olympia, Greece from the 8th century BC to the 4th century AD. Baron Pierre de Coubertin founded the International Olympic Committee (IOC) in 1894, leading to the first modern Games in Athens in 1896. The IOC is the governing body of the Olympic Movement (which encompasses all entities and individuals involved in the Oly ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hoberman Arch
The Hoberman Arch was the centerpiece of the Olympic Medals Plaza in downtown Salt Lake City during the 2002 Winter Olympics. Following the Olympics the arch was moved to the Salt Lake 2002 Olympic Cauldron Park where, along with the Olympic cauldron, it was one of the main highlights and an important part of Salt Lake's Olympic legacy. In August 2014, the arch was removed from the park and a new public display location has not yet been found. Design and history The arch was designed by Chuck Hoberman to be used as a mechanical curtain for the Olympic Medal Plaza's stage. It is a semi-circular aluminum structure, which opened like the iris of a human eye. The arch design was inspired by Utah's natural stone arches, such as Delicate Arch. At the time of its construction the arch was the largest unfolding structure in the world. It took Hoberman four months to design the arch (with support from Buro Happold). Specialized knuckle assemblies, which allowed the arch to expand and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hoberman Sphere
A Hoberman sphere is an isokinetic structure patented by Chuck Hoberman that resembles a geodesic dome, but is capable of folding down to a fraction of its normal size by the scissor-like action of its joints. Colorful plastic versions have become popular as children's toys: several toy sizes exist, with the original design capable of expanding from in diameter to . Description A Hoberman sphere typically consists of six great circles corresponding to the edges of an icosidodecahedron. The Hoberman sphere can be unfolded by allowing certain members to spread apart. The operation of each joint is linked to all the others in a scissors mechanism like those used to mount pantograph mirrors, or how a folding chair operates. In larger models, this can be accomplished by feeding out a string or cable instead. The largest existing Hoberman sphere is in the AHHAA Science Center in Tartu, Estonia. Fully expanded, it is in diameter. The motorized sphere weighs , is constructed of air ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
France
France (), officially the French Republic ( ), is a country primarily located in Western Europe. It also comprises of Overseas France, overseas regions and territories in the Americas and the Atlantic Ocean, Atlantic, Pacific Ocean, Pacific and Indian Oceans. Its Metropolitan France, metropolitan area extends from the Rhine to the Atlantic Ocean and from the Mediterranean Sea to the English Channel and the North Sea; overseas territories include French Guiana in South America, Saint Pierre and Miquelon in the North Atlantic, the French West Indies, and many islands in Oceania and the Indian Ocean. Due to its several coastal territories, France has the largest exclusive economic zone in the world. France borders Belgium, Luxembourg, Germany, Switzerland, Monaco, Italy, Andorra, and Spain in continental Europe, as well as the Kingdom of the Netherlands, Netherlands, Suriname, and Brazil in the Americas via its overseas territories in French Guiana and Saint Martin (island), ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
New York City
New York, often called New York City or NYC, is the List of United States cities by population, most populous city in the United States. With a 2020 population of 8,804,190 distributed over , New York City is also the List of United States cities by population density, most densely populated major city in the United States, and is more than twice as populous as second-place Los Angeles. New York City lies at the southern tip of New York (state), New York State, and constitutes the geographical and demographic center of both the Northeast megalopolis and the New York metropolitan area, the largest metropolitan area in the world by urban area, urban landmass. With over 20.1 million people in its metropolitan statistical area and 23.5 million in its combined statistical area as of 2020, New York is one of the world's most populous Megacity, megacities, and over 58 million people live within of the city. New York City is a global city, global Culture of New ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Museum Of Modern Art
The Museum of Modern Art (MoMA) is an art museum located in Midtown Manhattan, New York City, on 53rd Street between Fifth and Sixth Avenues. It plays a major role in developing and collecting modern art, and is often identified as one of the largest and most influential museums of modern art in the world. MoMA's collection offers an overview of modern and contemporary art, including works of architecture and design, drawing, painting, sculpture, photography, prints, illustrated and artist's books, film, and electronic media. The MoMA Library includes about 300,000 books and exhibition catalogs, more than 1,000 periodical titles, and more than 40,000 files of ephemera about individual artists and groups. The archives hold primary source material related to the history of modern and contemporary art. It attracted 1,160,686 visitors in 2021, an increase of 64% from 2020. It ranked 15th on the list of most visited art museums in the world in 2021.'' The Art Newspaper'' an ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hoberman Sphere
A Hoberman sphere is an isokinetic structure patented by Chuck Hoberman that resembles a geodesic dome, but is capable of folding down to a fraction of its normal size by the scissor-like action of its joints. Colorful plastic versions have become popular as children's toys: several toy sizes exist, with the original design capable of expanding from in diameter to . Description A Hoberman sphere typically consists of six great circles corresponding to the edges of an icosidodecahedron. The Hoberman sphere can be unfolded by allowing certain members to spread apart. The operation of each joint is linked to all the others in a scissors mechanism like those used to mount pantograph mirrors, or how a folding chair operates. In larger models, this can be accomplished by feeding out a string or cable instead. The largest existing Hoberman sphere is in the AHHAA Science Center in Tartu, Estonia. Fully expanded, it is in diameter. The motorized sphere weighs , is constructed of air ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Elaine Dannheisser
Elaine Dannheisser (Brooklyn 1923 - 2001 Manhattan) was an avid contemporary art collector and driving force behind the Werner and Elaine Dannheisser Art Collection. She was a onetime trustee of the Guggenheim Museum. Following an exhibition of her collection in 1997-98, she donated the largest ever cache of contemporary art to the Museum of Modern Art. Early activity Early in her life, Elaine Dannheisser studied art at Art Students League of New York. Werner Dannheisser (1909–1992) and Elaine married and initially collected French painting such as Pablo Picasso, Jean Dubuffet, Maurice Utrillo and Fernand Léger. In the 1980s the Dannheissers sold their French painting collection and began to purchase contemporary art from Soho and East Village galleries. Elaine became a passionate bridge player, frequently spending six hours a day at the Beverly Bridge Club, at Lexington Avenue and 57th Street. Dannheisser Foundation In 1982, the couple established the Dannheisser Foundation, w ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hoberman Sphere Maintenance
{{surname ...
Hoberman is a surname. Notable people with the surname include: *Ben Hoberman (1922–2014), American radio executive *Brent Hoberman, founder of Lastminute.com * Chuck Hoberman, American designer and architect *David Hoberman (born 1952), American film producer * Haggai Hoberman, Israeli journalist and author *J. Hoberman, American film critic * John Hoberman, Professor of Germanic languages at the University of Texas at Austin * John Milton Hoberman, American author * Mary Ann Hoberman (born 1930), American writer *Nicky Hoberman (born 1967), South African artist * Perry Hoberman, American artist See also * Hoberman Arch *Hoberman sphere A Hoberman sphere is an isokinetic structure patented by Chuck Hoberman that resembles a geodesic dome, but is capable of folding down to a fraction of its normal size by the scissor-like action of its joints. Colorful plastic versions have becom ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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