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San Francisco Maritime National Historical Park
The San Francisco Maritime National Historical Park is located in San Francisco, California, United States. The park includes a fleet of historic vessels, a visitor center, a maritime museum, and a library/research facility. The park used to be referred to as the San Francisco Maritime Museum, however the former 1951 name changed in 1978 when the collections were acquired by the National Park Service. Today's San Francisco Maritime National Historical Park was authorized in 1988; the maritime museum is among the park's many cultural resources. The park also incorporates the Aquatic Park Historic District, bounded by Van Ness Avenue, Polk Street, and Hyde Street. Historic vessel fleet The historic fleet of the San Francisco Maritime National Historical Park is moored at the park's Hyde Street Pier. The fleet consists of the following major vessels: *'' Balclutha'', an 1886 built square rigged sailing ship. *'' C.A. Thayer'', an 1895 built schooner. *''Eureka'', an 1890 built steam ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hyde Street Pier
The Hyde Street Pier, at 2905 Hyde Street, is a historic ferry pier located on the northern waterfront of San Francisco, California. Background Prior to the opening of the Golden Gate Bridge and the San Francisco–Oakland Bay Bridge, it was the principal automobile ferry terminal connecting San Francisco with Marin County by way of Sausalito to the north, and the East Bay by way of Berkeley. It was designated part of U.S. Route 101 and U.S. Route 40. The ferries began operation by the Golden Gate Ferry Company. In early-1929, the Golden Gate Ferry Company merged with the competing auto ferry system of the Southern Pacific railroad, with ferry service to the Hyde Street Pier taken over by the new "Southern Pacific-Golden Gate Ferries, Ltd." starting on May 1, 1929.''Red Trains in the East Bay'', by Robert Ford, pp.174-79, Interurbans Publications, 1977 Today, the pier is part of the San Francisco Maritime National Historical Park. Various historical ships are moored to the pie ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Paddlewheel
A paddle wheel is a form of waterwheel or impeller in which a number of paddles are set around the periphery of the wheel. It has several uses, of which some are: * Very low-lift water pumping, such as flooding paddy fields at no more than about height above the water source. * To move and mix algae culture in the raceway ponds used for algaculture. * Propulsion of watercraft (as a paddlewheel) * Low head hydro power (as a waterwheel) * Flow sensors * Aerators The paddle wheel is an ancient invention but is still used today in a wide range of industrial and agriculture applications. Ship propulsion Paddle wheels would enable ships to travel without needing wind or oars. They were made obsolete by propellers, which had greater propulsion with lower weight and fuel usage. This was demonstrated by an 1845 tug-of-war competition between and with the screw-driven ''Rattler'' pulling the paddle steamer ''Alecto'' backward at . [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hilaire Hiler
Hilaire Harzberg Hiler (July 16, 1898 – January 19, 1966) was an American artist, psychologist, and color theoretician who worked in Europe and United States during the mid-20th century. At home and abroad, Hiler worked as a muralist, jazz musician, costume and set designer, teacher, and author. He was best known for combining his artistic and psychoanalytical training to formulate an original perspective on color. Biography Hilaire Hiler was born in St. Paul, Minnesota in 1898, and he grew up in Providence, Rhode Island. Possessing both great height and a flamboyant personality, as well as a stammer and large ears, Hiler was a distinctive and charming character who felt at home anywhere. Hiler attended a number of schools as a young man, including Rhode Island School of Design classes for children, and a brief attendance at Wharton School of Finance and Commerce to appease his father. Although he was told by multiple instructors to give up art based on his struggles with d ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Color Theory
In the visual arts, color theory is the body of practical guidance for color mixing and the visual effects of a specific color combination. Color terminology based on the color wheel and its geometry separates colors into primary color, secondary color, and tertiary color. The understanding of color theory dates to antiquity. Aristotle (d. 322 BCE) and Claudius Ptolemy (d. 168 CE) already discussed which and how colors can be produced by mixing other colors. The influence of light on color was investigated and revealed further by al-Kindi (d. 873) and Ibn al-Haytham (d.1039). Ibn Sina (d. 1037), Nasir al-Din al-Tusi (d. 1274), and Robert Grosseteste (d. 1253) discovered that contrary to the teachings of Aristotle, there are multiple color paths to get from black to white. More modern approaches to color theory principles can be found in the writings of Leone Battista Alberti (c. 1435) and the notebooks of Leonardo da Vinci (c. 1490). A formalization of "color theory" began in t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mural
A mural is any piece of graphic artwork that is painted or applied directly to a wall, ceiling or other permanent substrate. Mural techniques include fresco, mosaic, graffiti and marouflage. Word mural in art The word ''mural'' is a Spanish adjective that is used to refer to what is attached to a wall. The term ''mural'' later became a noun. In art, the word mural began to be used at the beginning of the 20th century. In 1906, Dr. Atl issued a manifesto calling for the development of a monumental public art movement in Mexico; he named it in Spanish ''pintura mural'' (English: ''wall painting''). In ancient Roman times, a mural crown was given to the fighter who was first to scale the wall of a besieged town. "Mural" comes from the Latin ''muralis'', meaning "wall painting". History Antique art Murals of sorts date to Upper Paleolithic times such as the cave paintings in the Lubang Jeriji Saléh cave in Borneo (40,000-52,000 BP), Chauvet Cave in Ardèche departmen ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Public Bathing
Public baths originated when most people in population centers did not have access to private bathing facilities. Though termed "public", they have often been restricted according to gender, religious affiliation, personal membership, and other criteria. In addition to their hygienic function, public baths have also been social meeting places. They have included saunas, massages, and other relaxation therapies, as are found in modern day spas. As the percentage of dwellings containing private bathrooms has increased in some societies, the need for public baths has diminished, and they are now almost exclusively used recreationally. History Public facilities for bathing were constructed, as excavations have provided evidence for, in the 3rd millennium BC, as with the Great Bath, Mohenjo-daro. Ancient Greece In Greece by the sixth century BC men and women washed in basins near places of physical and intellectual exercise. Later gymnasia had indoor basins set overhead, the open ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Works Progress Administration
The Works Progress Administration (WPA; renamed in 1939 as the Work Projects Administration) was an American New Deal agency that employed millions of jobseekers (mostly men who were not formally educated) to carry out public works projects, including the construction of public buildings and roads. It was set up on May 6, 1935, by presidential order, as a key part of the Second New Deal. The WPA's first appropriation in 1935 was $4.9 billion (about $15 per person in the U.S., around 6.7 percent of the 1935 GDP). Headed by Harry Hopkins, the WPA supplied paid jobs to the unemployed during the Great Depression in the United States, while building up the public infrastructure of the US, such as parks, schools, and roads. Most of the jobs were in construction, building more than 620,000 miles (1,000,000 km) of streets and over 10,000 bridges, in addition to many airports and much housing. The largest single project of the WPA was the Tennessee Valley Authority. At its peak ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
National Historic Landmark
A National Historic Landmark (NHL) is a building, district, object, site, or structure that is officially recognized by the United States government for its outstanding historical significance. Only some 2,500 (~3%) of over 90,000 places listed on the country's National Register of Historic Places are recognized as National Historic Landmarks. A National Historic Landmark District may include contributing properties that are buildings, structures, sites or objects, and it may include non-contributing properties. Contributing properties may or may not also be separately listed. Creation of the program Prior to 1935, efforts to preserve cultural heritage of national importance were made by piecemeal efforts of the United States Congress. In 1935, Congress passed the Historic Sites Act, which authorized the Interior Secretary authority to formally record and organize historic properties, and to designate properties as having "national historical significance", and gave the Nation ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Art Deco
Art Deco, short for the French ''Arts Décoratifs'', and sometimes just called Deco, is a style of visual arts, architecture, and product design, that first appeared in France in the 1910s (just before World War I), and flourished in the United States and Europe during the 1920s and 1930s. Through styling and design of the exterior and interior of anything from large structures to small objects, including how people look (clothing, fashion and jewelry), Art Deco has influenced bridges, buildings (from skyscrapers to cinemas), ships, ocean liners, trains, cars, trucks, buses, furniture, and everyday objects like radios and vacuum cleaners. It got its name after the 1925 Exposition internationale des arts décoratifs et industriels modernes (International Exhibition of Modern Decorative and Industrial Arts) held in Paris. Art Deco combined modern styles with fine craftsmanship and rich materials. During its heyday, it represented luxury, glamour, exuberance, and faith in socia ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Streamline Moderne
Streamline Moderne is an international style of Art Deco architecture and design that emerged in the 1930s. Inspired by aerodynamic design, it emphasized curving forms, long horizontal lines, and sometimes nautical elements. In industrial design, it was used in railroad locomotives, telephones, toasters, buses, appliances, and other devices to give the impression of sleekness and modernity. In France, it was called the ''style paquebot'', or "ocean liner style", and was influenced by the design of the luxury ocean liner SS ''Normandie'', launched in 1932. Influences and origins As the Great Depression of the 1930s progressed, Americans saw a new aspect of Art Deco, ''i.e.'', streamlining, a concept first conceived by industrial designers who stripped Art Deco design of its ornament in favor of the aerodynamic pure-line concept of motion and speed developed from scientific thinking. The cylindrical forms and long horizontal windowing in architecture may also have been influenc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
ENTRANCE - Aquatic Park Bathhouse, Beach Street, West Of Polk Street, San Francisco, San Francisco County, CA HABS CAL,38-SANFRA,157-3
Entrance generally refers to the place of entering like a gate, door, or road or the permission to do so. Entrance may also refer to: * ''Entrance'' (album), a 1970 album by Edgar Winter * Entrance (display manager), a login manager for the X window manager * Entrance (liturgical), a kind of liturgical procession in the Eastern Orthodox tradition * Entrance (musician), born Guy Blakeslee * ''Entrance'' (film), a 2011 film * The Entrance, New South Wales, a suburb in Central Coast, New South Wales, Australia * "Entrance" (Dimmu Borgir song), from the 1997 album ''Enthrone Darkness Triumphant'' * Entry (cards), a card that wins a trick to which another player made the lead, as in the card game contract bridge * N-Trance, a British electronic music group formed in 1990 * University and college admissions * Entrance Hall * Entryway See also *Enter (other) *Entry (other) Entry may refer to: *Entry, West Virginia, an unincorporated community in the United States * ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fresnel Lens
A Fresnel lens ( ; ; or ) is a type of composite compact lens developed by the French physicist Augustin-Jean Fresnel (1788–1827) for use in lighthouses. It has been called "the invention that saved a million ships." The design allows the construction of lenses of large aperture and short focal length without the mass and volume of material that would be required by a lens of conventional design. A Fresnel lens can be made much thinner than a comparable conventional lens, in some cases taking the form of a flat sheet. The simpler dioptric (purely refractive) form of the lens was first proposed by Count Buffon and independently reinvented by Fresnel. The ''catadioptric'' form of the lens, entirely invented by Fresnel, has outer elements that use total internal reflection as well as refraction; it can capture more oblique light from a light source and add it to the beam of a lighthouse, making the light visible from greater distances. Description The Fresnel lens redu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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