|
Del Rey Lagoon Park
Del Rey Lagoon Park is a Los Angeles municipal park in the Playa Del Rey neighborhood with a lagoon that is part of the greater Ballona Creek watershed. The park features lighted baseball fields, lighted basketball courts and a children’s playground. There is a dedicated parking lot just off Pacific Avenue. Del Rey Lagoon (sometimes called “the duck pond”) covers six acres (24,000 m2 and is long and approximately wide. The depth of the lagoon circa 1959 was four to six feet (1.2-1.8 m). The lagoon is a place where “wild ducks swim beside the domestic varieties that are cast-off Easter presents for city-dwellers’ children.” Among the wild waterfowl is a “large population of bufflehead ducks, great blue herons and coots.” History Del Rey and Ballona Lagoons were originally part of the same Ballona Creek estuary channel system. The lagoon played host to crew races in the first decade of the 20th century. The lagoon played host to the Los Angeles Motordrom ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
City Of Los Angeles Department Of Recreation And Parks
The City of Los Angeles Department of Recreation and Parks operates and maintains Los Angeles City parks, playgrounds, swimming pools, golf courses, skateparks, and recreation centers; as well as, providing recreational programming. History In 1904, Los Angeles founded the first city-run Playground and Recreation Department in the United States, with the first playground opening the following year. In 1947, the Los Angeles city government combined the Department of Parks and the Department of Playgrounds and Recreation into the Department of Recreation and Parks, combining the two organizations. Griffith Observatory Since opening in 1935, Griffith Observatory has been owned and operated by the City of Los Angeles Department of Recreation and Parks. List of parks in Los Angeles References {{LosAngeles-stub Government of Los Angeles Environment of Greater Los Angeles ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sailboat
A sailboat or sailing boat is a boat propelled partly or entirely by sails and is smaller than a sailing ship. Distinctions in what constitutes a sailing boat and ship vary by region and maritime culture. Types Although sailboat terminology has varied across history, many terms have specific meanings in the context of modern yachting. A great number of sailboat-types may be distinguished by size, hull configuration, keel type, purpose, number and configuration of masts, and sail plan. Popular monohull designs include: Cutter The cutter is similar to a sloop with a single mast and mainsail, but generally carries the mast further aft to allow for a jib and staysail to be attached to the head stay and inner forestay, respectively. Once a common racing configuration, today it gives versatility to cruising boats, especially in allowing a small staysail to be flown from the inner stay in high winds. Catboat A catboat has a single mast mounted far forward and does not carr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Playa Del Rey, Los Angeles
Playa del Rey (Spanish for "Beach of the King") is a seaside community in the Santa Monica Bay and the Westside region of Los Angeles, California. It has a ZIP code of 90293 and area codes of 310 and 424. As of 2018, the community had a population of 16,230 people. History Lower Playa del Rey was originally wetlands and sand dune soil, but natural flooding was halted by levees made of earthen soil, boulders and reinforced concrete with a soft-bottom submerged soil that promotes both tidal flow in good weather and facilitated the flow of freshwater into the ocean in rainy weather, resulting in a dynamic estuarine river known as Ballona Creek. In the 1870s, Playa Del Rey was the location of the first attempt at a dredged harbor in Santa Monica Bay. Under contract with the Atchison, Topeka & Santa Fe Railroad, Moye Wicks' syndicate spent $300,000 to dredge Port Ballona Harbor, for shipping to the Orient. Within three years, winter waves brought flooding, but what remained of ma ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Parks In Los Angeles County, California
A park is an area of natural, semi-natural or planted space set aside for human enjoyment and recreation or for the protection of wildlife or natural habitats. Urban parks are green spaces set aside for recreation inside towns and cities. National parks and country parks are green spaces used for recreation in the countryside. State parks and provincial parks are administered by sub-national government states and agencies. Parks may consist of grassy areas, rocks, soil and trees, but may also contain buildings and other artifacts such as monuments, fountains or playground structures. Many parks have fields for playing sports such as baseball and football, and paved areas for games such as basketball. Many parks have trails for walking, biking and other activities. Some parks are built adjacent to bodies of water or watercourses and may comprise a beach or boat dock area. Urban parks often have benches for sitting and may contain picnic tables and barbecue grills. The larg ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Oxford Basin
Oxford Basin (also known as Oxford Lagoon or Marina Sanctuary) is a constructed wetland and wildlife conservation area in the northwest corner of Marina Del Rey, California, located between Washington Boulevard and Admiralty Way.Moran, Julio. "Turn Flood Basin Into Wetland, Environmental Group Asks" ''Los Angeles Times,'' Apr 30, 1989, pp. 2''.'' The basin is a remnant of the historic Ballona Valley ecosystem and one of the last remaining intertidal mud flat habitats in Los Angeles County. Oxford Basin collects urban runoff from a watershed and remediates it in part through the use of bioswales, low-flow storm drain diversions, native landscaping and a circulation berm. Other inputs to the lagoon are groundwater and tidal inflows from Marina del Rey Harbor. Oxford Basin is ringed by a nature walk loop that runs parallel to the Coastal Bike Trail on the Oxford Avenue side. Observation decks offer opportunities for wildlife viewing; the lagoon is host to between 50 and 100 s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Del Rey Lagoon Low Ebb
Del, or nabla, is an operator used in mathematics (particularly in vector calculus) as a vector differential operator, usually represented by the nabla symbol ∇. When applied to a function defined on a one-dimensional domain, it denotes the standard derivative of the function as defined in calculus. When applied to a ''field'' (a function defined on a multi-dimensional domain), it may denote any one of three operators depending on the way it is applied: the gradient or (locally) steepest slope of a scalar field (or sometimes of a vector field, as in the Navier–Stokes equations); the divergence of a vector field; or the curl (rotation) of a vector field. Strictly speaking, del is not a specific operator, but rather a convenient mathematical notation for those three operators that makes many equations easier to write and remember. The del symbol (or nabla) can be interpreted as a vector of partial derivative operators; and its three possible meanings—gradient, divergenc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sabot (dinghy)
The Sabot is a sailing dinghy that is sailed and raced singlehandedly usually by young sailors in various parts of the world. The boat is suitable for amateur production. Early models were usually made from plywood. More recent models have been made from fiberglass. Variations on the design include the daggerboard-equipped El Toro from the Richmond Yacht Club in San Francisco Bay Area, the US Sabot, the " Naples Sabot" from Naples community of Long Beach, California, as well as Australian varieties, such as the Holdfast Trainer. See also Related development * El Toro (dinghy) *Holdfast Trainer The Holdfast Trainer is a South Australian sailing dinghy designed in 1948 for junior sailors under the required age of 16. Based on the Sabot, the class features a hard-chine wooden or fiberglass hull with a flat (or "pram") bow and a daggerbo ... * Naples Sabot * US Sabot References External linksAustralian National Sabot Council [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Paddle Wheel
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] |
Outrigger Boat
Outrigger boats are various watercraft featuring one or more lateral support floats known as outriggers, which are fastened to one or both sides of the main hull. They can range from small dugout canoes to large plank-built vessels. Outrigger boats can also vary in their configuration, from the ancestral double-hull configuration (catamarans), to single-outrigger vessels prevalent in the Pacific Islands and Madagascar, to the double-outrigger vessels (trimarans) prevalent in Island Southeast Asia. They are traditionally fitted with Austronesian sails, like the crab claw sails and tanja sails, but in modern times are often fitted with petrol engines. Unlike a single-hulled vessel, an outrigger or double-hull vessel generates stability as a result of the distance between its hulls rather than due to the shape of each individual hull. As such, the hulls of outrigger or double-hull boats are typically longer, narrower and more hydrodynamically efficient than those of single-hul ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kayak
A kayak is a small, narrow watercraft which is typically propelled by means of a double-bladed paddle. The word kayak originates from the Greenlandic word ''qajaq'' (). The traditional kayak has a covered deck and one or more cockpits, each seating one paddler. The cockpit is sometimes covered by a spray deck that prevents the entry of water from waves or spray, differentiating the craft from a canoe. The spray deck makes it possible for suitably skilled kayakers to roll the kayak: that is, to capsize and right it without it filling with water or ejecting the paddler. ] Some modern boats vary considerably from a traditional design but still claim the title "kayak", for instance in eliminating the cockpit by seating the paddler on top of the boat ("sit-on-top" kayaks); having inflated air chambers surrounding the boat; replacing the single hull with twin hulls; and replacing paddles with other human-powered propulsion methods, such as foot-powered rotational propellers and "fli ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rowing
Rowing is the act of propelling a human-powered watercraft using the sweeping motions of oars to displace water and generate reactional propulsion. Rowing is functionally similar to paddling, but rowing requires oars to be mechanically attached to the boat, and the rower drives the oar like a lever, exerting force in the ''same'' direction as the boat's travel; while paddles are completely hand-held and have no attachment to the boat, and are driven like a cantilever, exerting force ''opposite'' to the intended direction of the boat. In some strict terminologies, using oars for propulsion may be termed either "pulling" or "rowing", with different definitions for each. Where these strict terminologies are used, the definitions are reversed depending on the context. On saltwater a "pulling boat" has each person working one oar on one side, alternating port and starboard along the length of the boat; whilst "rowing" means each person operates two oars, one on each side of the b ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Canoes
A canoe is a lightweight narrow water vessel, typically pointed at both ends and open on top, propelled by one or more seated or kneeling paddlers facing the direction of travel and using a single-bladed paddle. In British English, the term ''canoe'' can also refer to a kayak, while canoes are called Canadian or open canoes to distinguish them from kayaks. Canoes were developed by cultures all over the world, including some designed for use with sails or outriggers. Until the mid-19th century, the canoe was an important means of transport for exploration and trade, and in some places is still used as such, sometimes with the addition of an outboard motor. Where the canoe played a key role in history, such as the Northern United States, Canada, and New Zealand, it remains an important theme in popular culture. Canoes are now widely used for competition and pleasure, such as racing, whitewater, touring and camping, freestyle and general recreation. Canoeing has been part ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
