1.
Redwood City, California
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Redwood City is a city on the San Francisco Peninsula in Northern Californias Bay Area, approximately 27 miles south of San Francisco, and 24 miles northwest of San Jose. Redwood Citys history spans its earliest inhabitation by the Ohlone people to being a port for lumber and other goods, the county seat of San Mateo County, it is the home of several technology companies such as Box, Oracle, Evernote, Wealthfront, and Electronic Arts. At the 2010 census, the city had a population of 76,815, the Port of Redwood City is the only deepwater port on San Francisco Bay south of San Francisco. Redwood City is the location of the San Mateo County Jail, the Malibu Grand Prix long time landmark was recently demolished along with the citys only Mini Golf, Go-Kart, Video Game Arcade, and Batting Cages. Malibu Grand Prixs previous location is currently the site of a new additional Jail. The Hetch Hetchy water pipeline runs through Redwood City and supplies a vast majority of the area with low grain rated water. According to the United States Census Bureau, the city has an area of 34.7 square miles, a major watercourse draining much of Redwood City is Redwood Creek, to which several significant river deltas connect, the largest of which is Westpoint Slough. Palomar Park, just north of Emerald Hills and east of San Carlos Crestview area, is another Redwood City neighborhood that is part of unincorporated San Mateo County. Although Redwood City has a middle class, the south eastern section of Redwood City highly resembles working class North Fair Oaks in demographic make-up. El Camino Real, a northwest/southeast arterial street and Woodside Road and it is a very diverse cosmopolitan city in the Bay Area, a newly popular destination in the peninsula and the Bay as a whole. Redwood City, along with most of the Bay Area, enjoys a mild Mediterranean climate, with warm, dry summers and cool, relatively wet winters. The National Weather Service, which both a forecast center and a cooperative office in Redwood City, reports that December is the coolest month. The record highest temperature of 110 °F and was recorded on July 14 and 15,1972, the record lowest temperature of 16 °F was recorded on January 11,1949. Annually, there are an average of 21.6 days with highs of 90 °F or higher and 2.8 days with highs of 100 °F or higher, the normal annual precipitation is 20.56 inches. The most rainfall in one month was 12.42 inches in February 1998, the record 24-hour rainfall of 4.88 inches was on October 13,1962. There are an average of 62.1 days with measurable precipitation, snow flurries have been observed on rare occasions, there was some minor snow accumulation in May 1935, January 1962, and February 1976. The 2010 United States Census reported that Redwood City had a population of 76,815, the population density was 3,955.5 people per square mile. The racial makeup of Redwood City was 46,255 White,1,881 African American,511 Native American,8,216 Asian,795 Pacific Islander,14,967 from other races, hispanic or Latino of any race were 29,810 persons
2.
Geographic coordinate system
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A geographic coordinate system is a coordinate system used in geography that enables every location on Earth to be specified by a set of numbers, letters or symbols. The coordinates are chosen such that one of the numbers represents a vertical position. A common choice of coordinates is latitude, longitude and elevation, to specify a location on a two-dimensional map requires a map projection. The invention of a coordinate system is generally credited to Eratosthenes of Cyrene. Ptolemy credited him with the adoption of longitude and latitude. Ptolemys 2nd-century Geography used the prime meridian but measured latitude from the equator instead. Mathematical cartography resumed in Europe following Maximus Planudes recovery of Ptolemys text a little before 1300, in 1884, the United States hosted the International Meridian Conference, attended by representatives from twenty-five nations. Twenty-two of them agreed to adopt the longitude of the Royal Observatory in Greenwich, the Dominican Republic voted against the motion, while France and Brazil abstained. France adopted Greenwich Mean Time in place of local determinations by the Paris Observatory in 1911, the latitude of a point on Earths surface is the angle between the equatorial plane and the straight line that passes through that point and through the center of the Earth. Lines joining points of the same latitude trace circles on the surface of Earth called parallels, as they are parallel to the equator, the north pole is 90° N, the south pole is 90° S. The 0° parallel of latitude is designated the equator, the plane of all geographic coordinate systems. The equator divides the globe into Northern and Southern Hemispheres, the longitude of a point on Earths surface is the angle east or west of a reference meridian to another meridian that passes through that point. All meridians are halves of great ellipses, which converge at the north and south poles, the prime meridian determines the proper Eastern and Western Hemispheres, although maps often divide these hemispheres further west in order to keep the Old World on a single side. The antipodal meridian of Greenwich is both 180°W and 180°E, the combination of these two components specifies the position of any location on the surface of Earth, without consideration of altitude or depth. The grid formed by lines of latitude and longitude is known as a graticule, the origin/zero point of this system is located in the Gulf of Guinea about 625 km south of Tema, Ghana. To completely specify a location of a feature on, in, or above Earth. Earth is not a sphere, but a shape approximating a biaxial ellipsoid. It is nearly spherical, but has an equatorial bulge making the radius at the equator about 0. 3% larger than the radius measured through the poles, the shorter axis approximately coincides with the axis of rotation
3.
Draft (hull)
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Draft determines the minimum depth of water a ship or boat can safely navigate. The draft can also be used to determine the weight of the cargo on board by calculating the displacement of water. A table made by the shows the water displacement for each draft. The density of the water and the content of the bunkers has to be taken into account. The closely related term trim is defined as the difference between the forward and aft drafts, the draft aft is measured in the perpendicular of the stern. The draft forward is measured in the perpendicular of the bow, the scale may use traditional English units or metric units. If the English system is used, the bottom of each marking is the draft in feet, in metric marking schemes, the bottom of each draft mark is the draft in decimeters and each mark is one decimeter high. Larger ships try to maintain a water draft when they are light, in order to make a better sea crossing. In order to achieve this they use sailing ballasts to stabilize the ship, the water draft of a large ship has little direct link with its stability because stability depends solely on the respective positions of the metacenter of the hull and the center of gravity. It is also however, that a light ship has quite high stability which can lead to implying too much rolling of the ship. A fully laden ship can have either a strong or weak stability, the draft of ships can be increased when the ship is in motion in shallow water, a phenomenon known as squat. Draft is a significant factor limiting navigable waterways, especially for large vessels, of course this includes many shallow coastal waters and reefs, but also some major shipping lanes. Panamax class ships—the largest ships able to transit the Panama Canal—do have a limit but are usually limited by beam, or sometimes length overall. However, in the much wider Suez Canal, the factor for Suezmax ships is draft. Some supertankers are able to transit the Suez Canal when unladen or partially laden, canals are not the only draft-limited shipping lanes. A Malaccamax ship has the deepest draft able to transit the very busy, there are only a few ships of this size. A small draft allows pleasure boats to navigate through shallower water and this makes it possible for these boats to access smaller ports, to travel along rivers and even to beach the boat. A large draft ensures a level of stability in strong wind
4.
United States dollar
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The United States dollar is the official currency of the United States and its insular territories per the United States Constitution. It is divided into 100 smaller cent units, the circulating paper money consists of Federal Reserve Notes that are denominated in United States dollars. The U. S. dollar was originally commodity money of silver as enacted by the Coinage Act of 1792 which determined the dollar to be 371 4/16 grain pure or 416 grain standard silver, the currency most used in international transactions, it is the worlds primary reserve currency. Several countries use it as their currency, and in many others it is the de facto currency. Besides the United States, it is used as the sole currency in two British Overseas Territories in the Caribbean, the British Virgin Islands and Turks and Caicos Islands. A few countries use the Federal Reserve Notes for paper money, while the country mints its own coins, or also accepts U. S. coins that can be used as payment in U. S. dollars. After Nixon shock of 1971, USD became fiat currency, Article I, Section 8 of the U. S. Constitution provides that the Congress has the power To coin money, laws implementing this power are currently codified at 31 U. S. C. Section 5112 prescribes the forms in which the United States dollars should be issued and these coins are both designated in Section 5112 as legal tender in payment of debts. The Sacagawea dollar is one example of the copper alloy dollar, the pure silver dollar is known as the American Silver Eagle. Section 5112 also provides for the minting and issuance of other coins and these other coins are more fully described in Coins of the United States dollar. The Constitution provides that a regular Statement and Account of the Receipts and that provision of the Constitution is made specific by Section 331 of Title 31 of the United States Code. The sums of money reported in the Statements are currently being expressed in U. S. dollars, the U. S. dollar may therefore be described as the unit of account of the United States. The word dollar is one of the words in the first paragraph of Section 9 of Article I of the Constitution, there, dollars is a reference to the Spanish milled dollar, a coin that had a monetary value of 8 Spanish units of currency, or reales. In 1792 the U. S. Congress passed a Coinage Act, Section 20 of the act provided, That the money of account of the United States shall be expressed in dollars, or units. And that all accounts in the offices and all proceedings in the courts of the United States shall be kept and had in conformity to this regulation. In other words, this act designated the United States dollar as the unit of currency of the United States, unlike the Spanish milled dollar the U. S. dollar is based upon a decimal system of values. Both one-dollar coins and notes are produced today, although the form is significantly more common
5.
San Francisco Bay
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San Francisco Bay is a shallow estuary in the U. S. state of California. It is surrounded by a region known as the San Francisco Bay Area, dominated by the large cities San Francisco, Oakland. San Francisco Bay drains water from approximately 40 percent of California and it then connects to the Pacific Ocean via the Golden Gate strait. However, this group of interconnected bays is often called the San Francisco Bay. The bay was designated a Ramsar Wetland of International Importance on February 2,2013, the bay covers somewhere between 400 and 1,600 square miles, depending on which sub-bays, estuaries, wetlands, and so on are included in the measurement. The main part of the bay measures 3 to 12 miles wide east-to-west and it is the largest Pacific estuary in the Americas. Later, wetlands and inlets were filled in, reducing the Bays size since the mid-19th century by as much as one third. Recently, large areas of wetlands have been restored, further confusing the issue of the Bays size, despite its value as a waterway and harbor, many thousands of acres of marshy wetlands at the edges of the bay were, for many years, considered wasted space. As a result, soil excavated for building projects or dredged from channels was often dumped onto the wetlands, from the mid-19th century through the late 20th century, more than a third of the original bay was filled and often built on. The idea was, and remains, controversial, there are five large islands in San Francisco Bay. Alameda, the largest island, was created when a shipping lane was cut in 1901 and it is now predominantly a bedroom community. Angel Island was known as Ellis Island West because it served as the point for immigrants from East Asia. It is now a park accessible by ferry. Mountainous Yerba Buena Island is pierced by a tunnel linking the east and west spans of the San Francisco–Oakland Bay Bridge, attached to the north is the artificial and flat Treasure Island, site of the 1939 Golden Gate International Exposition. From the Second World War until the 1990s, both served as military bases and are now being redeveloped. Isolated in the center of the Bay is Alcatraz, the site of the federal penitentiary. The federal prison on Alcatraz Island no longer functions, but the complex is a popular tourist site, despite its name, Mare Island in the northern part of the bay is a peninsula rather than an island. During the last ice age, the now filled by the bay was a large linear valley with small hills
6.
West Coast of the United States
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The West Coast or Pacific Coast is the coastline along which the contiguous Western United States meets the North Pacific Ocean. As a region, this term most often refers to the states of California. More specifically, it refers to an area defined on the east by the Cascade Range, Sierra Nevada and Mojave Desert, the U. S. Census groups the five states of California, Oregon, Washington, Alaska, and Hawaii together as the Pacific States division. As of the 2010 Census, the population of the Census Bureaus Pacific Region was approximately 47.8 million – about 15. 3% of US population. The largest city on the west coast of the United States is Los Angeles, small isolated groups of hunter-gatherers migrated alongside herds of large herbivores far into Alaska. Between 16,500 BCE and 13,500 BCE, ice-free corridors developed along the Pacific coast and valleys of North America, Alaska Natives, indigenous peoples of the Pacific Northwest Coast, and California indigenous peoples eventually descended from the Paleo-Indians. They developed various languages and established trade routes, later, Spanish, British, French, Russian, and American explorers and settlers began colonizing the area. The West Coast of the United States has a climate in its Northern edge towards the Canada–US border. The coastline sees significantly mild temperatures when compared to the areas during summer. In far Northern California there is a difference of 17 °C between Eurekas and Willow Creek in spite of only 25 miles separating the locations and Willow Creek being located at a 500 metres elevation, coastal fog is also prevalent in keeping shoreline temperatures cool. Since the West Coast has been populated by more recently than the East Coast. Additionally, its demographic composition underlies its cultural difference from the rest of the United States. Californias history first as a major Spanish colony, and later Mexican territory, has given the lower West Coast a distinctive Hispanic tone, which it also shares with the rest of the Southwest. Similarly, two of the three cities in which Asian Americans have concentrated, San Francisco and Los Angeles, are located on the West Coast, San Franciscos Chinatown, the oldest in North America, is a vibrant cultural center. The West Coast also has a large share of green cities within the United States. Other writers, like Jean Baudrillard, Mike Davis, and Umberto Eco, have made related statements on Californian culture, in the Northwest, Portland and Seattle are both considered among the coffee capitals of the world. While Starbucks originated in Seattle, both towns are known for coffee roasters and independent coffeeshops. In the Pacific Northwest at large, which includes the Canadian west coast, the culture has significantly shaped by the environment, especially by its forests, mountains
7.
Port
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A port is a location on a coast or shore containing one or more harbors where ships can dock and transfer people or cargo to or from land. Port locations are selected to optimize access to land and navigable water, for commercial demand, Ports with deeper water are rarer, but can handle larger ships. Since ports throughout history handled every kind of traffic, support and storage facilities vary widely, may extend for miles, some ports have an important military role. One of the worlds oldest known artificial harbors is at Wadi al-Jarf on the Red Sea, along with the finding of harbor structures, ancient anchors have also been found. Guangzhou was an important port during the ancient times as far back as the Qin Dynasty, canopus was the principal port in Egypt for Greek trade before the foundation of Alexandria. Athens port of Piraeus was the base for the Athenian fleet, lothal is one of the most prominent cities of the ancient Indus valley civilisation, located in the Bhāl region of the modern state of Gujarāt and dating from 3700 BCE. Ostia Antica was the port of ancient Rome with Portus established by Claudius, Ports often have cargo-handling equipment, such as cranes and forklifts for use in loading ships, which may be provided by private interests or public bodies. Often, canneries or other processing facilities will be located nearby, some ports feature canals, which allow ships further movement inland. Access to intermodal transportation, such as railroads and highways, is critical to a port, so that passengers, Ports with international traffic have customs facilities. Harbor pilots and tugboats may maneuver large ships in tight quarters when near docks, the terms port and seaport are used for different types of port facilities that handle ocean-going vessels, and river port is used for river traffic, such as barges and other shallow-draft vessels. An inland port is a port on a lake, river, or canal with access to a sea or ocean. An example of this is the St. Lawrence Seaway which allows ships to travel from the Atlantic Ocean several thousand kilometers inland to Great Lakes ports like Duluth-Superior, a fishing port is a port or harbor for landing and distributing fish. It may be a facility, but it is usually commercial. A fishing port is the port that depends on an ocean product. In recent decades, regulations to save fishing stock may limit the use of a fishing port, a dry port is an inland intermodal terminal directly connected by road or rail to a seaport and operating as a centre for the transshipment of sea cargo to inland destinations. A warm-water port is one where the water does not freeze in wintertime, because they are available year-round, warm-water ports can be of great geopolitical or economic interest. A seaport is further categorized as a port or a cargo port. Additionally, cruise ports are known as a home port or a port of call
8.
River delta
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A river delta is a landform that forms from deposition of sediment carried by a river as the flow leaves its mouth and enters slower-moving or standing water. This occurs where a river enters an ocean, sea, estuary, lake, reservoir, River deltas are ecologically important as they provide coastline defense, are home to many species, and can impact drinking water supply. The tidal currents also cannot be too strong, as sediment would wash out into the body faster than the river deposits it. Of course, the river must carry enough sediment to layer into deltas over time, the rivers velocity decreases rapidly, causing it to deposit the majority, if not all, of its load. This alluvium builds up to form the river delta, when the flow enters the standing water, it is no longer confined to its channel and expands in width. This flow expansion results in a decrease in the flow velocity, as a result, sediment drops out of the flow and deposits. Over time, this single channel builds a deltaic lobe, pushing its mouth into the standing water, as the deltaic lobe advances, the gradient of the river channel becomes lower because the river channel is longer but has the same change in elevation. As the slope of the channel decreases, it becomes unstable for two reasons. First, gravity makes the flow in the most direct course down slope. If the river breaches its natural levees, it out onto a new course with a shorter route to the ocean. Second, as its slope gets lower, the amount of stress on the bed decreases, which results in deposition of sediment within the channel. This makes it easier for the river to breach its levees, often when the channel does this, some of its flow remains in the abandoned channel. When these channel-switching events occur, a mature delta develops a distributary network, another way these distributary networks form is from deposition of mouth bars. When this mid-channel bar is deposited at the mouth of a river and this results in additional deposition on the upstream end of the mouth-bar, which splits the river into two distributary channels. A good example of the result of this process is the Wax Lake Delta, in both of these cases, depositional processes force redistribution of deposition from areas of high deposition to areas of low deposition. This results in the smoothing of the shape of the delta as the channels move across its surface. Because the sediment is laid down in fashion, the shape of these deltas approximates a fan. The more often the flow changes course, the shape develops as closer to an ideal fan, the Mississippi and Ural River deltas, with their birds-feet, are examples of rivers that do not avulse often enough to form a symmetrical fan shape
9.
Redwood Creek (San Mateo County)
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Redwood Creek is a 9. 5-mile-long perennial stream located in San Mateo County, California, United States which discharges into South San Francisco Bay. The Port of Redwood City, the largest deepwater port in South San Francisco Bay, is situated on the east bank of Redwood Creek near its mouth, where the creek becomes a natural deepwater channel. The creek and city name, the latter first known as Red Woods City, was named because of the nearby Coast Redwood forest, in 1851, a deep-water channel that ran inland to what is now Redwood City was discovered off of San Francisco Bay. Named Redwood Creek, this channel was used by the companies to ship wood. A shipbuilding industry emerged, the first schooner was built in 1851 by G. M. Burnham, wooden shipbuilding remained an active industry until the last wooden ship built in Redwood City, called the Perseverance, was launched in 1883. The shipbuilding industry experienced a revival in the 1918s with the building of the first concrete ship in America, Redwood Creek begins in the Woodside Glens neighborhood of Woodside, California just south of Interstate 280, below the terminus of Farm Hill Boulevard. It descends below Interstate 280 on the west side of Woodside Road, at Alameda de las Pulgas it becomes an engineered concrete channel to El Camino Real, where it is briefly daylighted before entering underground culverts in downtown Redwood City. The primary tributary to Redwood Creek is a stream named Arroyo Ojo de Agua which meets it underground at approximately Broadway Street in Redwood City, as it crosses below US Highway 101 it becomes a tidal channel. Extensive mudflats and marsh areas are found along Redwood Creek near its mouth, several side channel sloughs connect to Redwood Creek, the largest of which is Westpoint Slough. Redwood Creek and Arroyo Ojo de Agua were fish sampled for Steelhead trout in 1981, the historical status of trout in the creek is unknown. At Stulsaft Park on the Arroyo de Ojo Agua tributary, a population of endangered Fountain Thistle was discovered in 2007, in Stulsaft Park it is found in an opening in a coffeeberry/bay laurel woodland. The plants may grow 6 feet tall and it is found in a handful of locations in San Mateo County. List of watercourses in the San Francisco Bay Area Dredging Seaport Centre Wetland Redwood Creek Watershed Map, Guide to San Francisco Bay Area Creeks, Oakland Museum
10.
Shipbuilding
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Shipbuilding is the construction of ships and other floating vessels. It normally takes place in a facility known as a shipyard. Shipbuilders, also called shipwrights, follow a specialized occupation that traces its roots to before recorded history, Shipbuilding and ship repairs, both commercial and military, are referred to as naval engineering. The construction of boats is an activity called boat building. The dismantling of ships is called ship breaking, the ancestors of Australian Aborigines and New Guineans also went across the Lombok Strait to Sahul by boat over 50,000 years ago. Evidence from Ancient Egypt shows that the early Egyptians knew how to assemble planks of wood into a ship hull as early as 3000 BC, the Archaeological Institute of America reports that some of the oldest ships yet unearthed are known as the Abydos boats. These are a group of 14 ships discovered in Abydos that were constructed of wooden planks which were sewn together, the ship dating to 3000 BC was about 25 m,75 feet long and is now thought to perhaps have belonged to an earlier pharaoh. According to professor OConnor, the 5, 000-year-old ship may have belonged to Pharaoh Aha. Early Egyptians also knew how to assemble planks of wood with treenails to fasten them together, early Egyptians also knew how to fasten the planks of this ship together with mortise and tenon joints. The oldest known tidal dock in the world was built around 2500 BC during the Harappan civilisation at Lothal near the present day Mangrol harbour on the Gujarat coast in India, other ports were probably at Balakot and Dwarka. However, it is probable that many small-scale ports, and not massive ports, were used for the Harappan maritime trade, ships from the harbour at these ancient port cities established trade with Mesopotamia. Shipbuilding and boatmaking may have been prosperous industries in ancient India, native labourers may have manufactured the flotilla of boats used by Alexander the Great to navigate across the Hydaspes and even the Indus, under Nearchos. The Indians also exported teak for shipbuilding to ancient Persia, other references to Indian timber used for shipbuilding is noted in the works of Ibn Jubayr. The ships of Ancient Egypts Eighteenth Dynasty were typically about 25 meters in length and they mounted a single square sail on a yard, with an additional spar along the bottom of the sail. These ships could also be oar propelled, the ocean and sea going ships of Ancient Egypt were constructed with cedar wood, most likely hailing from Lebanon. The ships of Phoenicia seem to have been of a similar design, the naval history of China stems back to the Spring and Autumn period of the ancient Chinese Zhou Dynasty. The Chinese built large rectangular barges known as ships, which were essentially floating fortresses complete with multiple decks with guarded ramparts. There is considerable knowledge regarding shipbuilding and seafaring in the ancient Mediterranean and this was dually met with the introduction of the Han Dynasty junk ship design in the same century
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