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Alcatraz Island Lighthouse
Alcatraz Island Lighthouse is a lighthouse—the first one built on the U.S. West Coast—located on Alcatraz Island in California's San Francisco Bay. It is located at the southern end of the island near the entrance to the prison. The first light house on the island was completed in 1854, and served the bay during its time as a Citadel and military prison. It was replaced by a taller ( above mean sea level) concrete tower built in 1909 to the south of the original one which was demolished after it was damaged due to earthquake in 1906. The automation of the lighthouse with a modern beacon took place in 1963, the year Alcatraz closed as the Alcatraz Federal Penitentiary. It is the oldest light station on the island with a modern beacon and is part of the museum on the island. Although when viewed from afar it easily looks the tallest structure on Alcatraz, it is actually shorter than the Alcatraz Water Tower, but as it lies on higher ground it looks much taller. History Even ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Alcatraz Island
Alcatraz Island () is a small island in San Francisco Bay, offshore from San Francisco, California, United States. The island was developed in the mid-19th century with facilities for a lighthouse, a military fortification, and a military prison. In 1934, the island was converted into a federal prison, Alcatraz Federal Penitentiary. The strong currents around the island and cold water temperatures made escape nearly impossible, and the prison became one of the most notorious in American history. The prison closed in 1963, and the island is now a major tourist attraction. Beginning in November 1969, the island was occupied for more than 19 months by a group of Native Americans, initially primarily from San Francisco, who were later joined by AIM and other urban Indians from other parts of the country, who were part of a wave of Native American activists organizing public protests across the US through the 1970s. In 1972, Alcatraz was transferred to the Department of Interior ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Juan De Ayala
Juan Manuel de Ayala y Aranza (28 December 1745 – 30 December 1797) was a Spanish naval officer who played a significant role in the European exploration of California, since he and the crew of his ship the ''San Carlos'' are the first Europeans known to have entered the San Francisco Bay. Having sailed from the Port of San Blas Nayarit Mexico. Biography Ayala was born in Osuna, Andalucía, Spain. He entered the Spanish navy on the 19 September 1760, and rose to achieve the rank of captain by 1782. He retired (on full pay on account of his achievements in California) on March 14, 1785. In the early 1770s, the Spanish royal authorities ordered an exploration of the north coast of California, "to Ascertain if there were any Russian Settlements on the Coast of California, and to Examine the Port of San Francisco". Don Fernando Rivera y Moncada had already marked the point for a mission in what is now San Francisco, and a land expedition to establish Spanish rule over the area, un ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cape St
A cape is a clothing accessory or a sleeveless outer garment which drapes the wearer's back, arms, and chest, and connects at the neck. History Capes were common in medieval Europe, especially when combined with a hood in the chaperon. They have had periodic returns to fashion - for example, in nineteenth-century Europe. Roman Catholic clergy wear a type of cape known as a ferraiolo, which is worn for formal events outside a ritualistic context. The cope is a liturgical vestment in the form of a cape. Capes are often highly decorated with elaborate embroidery. Capes remain in regular use as rainwear in various military units and police forces, in France for example. A gas cape was a voluminous military garment designed to give rain protection to someone wearing the bulky gas masks used in twentieth-century wars. Rich noblemen and elite warriors of the Aztec Empire would wear a tilmàtli; a Mesoamerican cloak/cape used as a symbol of their upper status. Cloth and clothing ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
South America
South America is a continent entirely in the Western Hemisphere and mostly in the Southern Hemisphere, with a relatively small portion in the Northern Hemisphere at the northern tip of the continent. It can also be described as the southern subregion of a single continent called America. South America is bordered on the west by the Pacific Ocean and on the north and east by the Atlantic Ocean; North America and the Caribbean Sea lie to the northwest. The continent generally includes twelve sovereign states: Argentina, Bolivia, Brazil, Chile, Colombia, Ecuador, Guyana, Paraguay, Peru, Suriname, Uruguay, and Venezuela; two dependent territories: the Falkland Islands and South Georgia and the South Sandwich Islands; and one internal territory: French Guiana. In addition, the ABC islands of the Kingdom of the Netherlands, Ascension Island (dependency of Saint Helena, Ascension and Tristan da Cunha, a British Overseas Territory), Bouvet Island ( dependency of Norway), Pa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fifth Auditor Of The Treasury
Fifth is the ordinal form of the number five. Fifth or The Fifth may refer to: * Fifth Amendment to the United States Constitution, as in the expression "pleading the Fifth" * Fifth column, a political term * Fifth disease, a contagious rash that spreads in school-aged children * Fifth force, a proposed force of nature in addition to the four known fundamental forces * Fifth (Stargate), a robotic character in the television series ''Stargate SG-1'' * Fifth (unit), a unit of volume used for distilled beverages in the U.S. * Fifth-generation programming language * The fifth in a series, or four after the first: see ordinal numbers * 1st Battalion, 5th Marines * The Fraction 1/5 * The royal fifth (Spanish and Portuguese), an old royal tax of 20% Music * A musical interval (music); specifically, a ** perfect fifth ** diminished fifth ** augmented fifth * Quintal harmony, in which chords concatenate fifth intervals (rather than the third intervals of tertian harmony) * Fifth (c ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Augustin Fresnel
Augustin-Jean Fresnel (10 May 1788 – 14 July 1827) was a French civil engineer and physicist whose research in optics led to the almost unanimous acceptance of the wave theory of light, excluding any remnant of Newton's corpuscular theory, from the late 1830s until the end of the 19th century. He is perhaps better known for inventing the catadioptric (reflective/refractive) Fresnel lens and for pioneering the use of "stepped" lenses to extend the visibility of lighthouses, saving countless lives at sea. The simpler dioptric (purely refractive) stepped lens, first proposed by Count Buffon and independently reinvented by Fresnel, is used in screen magnifiers and in condenser lenses for overhead projectors. By expressing Huygens's principle of secondary waves and Young's principle of interference in quantitative terms, and supposing that simple colors consist of sinusoidal waves, Fresnel gave the first satisfactory explanation of diffraction by straight edges, including t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Alcatraz Island At Sunset
Alcatraz Island () is a small island in San Francisco Bay, offshore from San Francisco, California, United States. The island was developed in the mid-19th century with facilities for a lighthouse, a military fortification, and a military prison. In 1934, the island was converted into a federal prison, Alcatraz Federal Penitentiary. The strong currents around the island and cold water temperatures made escape nearly impossible, and the prison became one of the most notorious in American history. The prison closed in 1963, and the island is now a major tourist attraction. Beginning in November 1969, the island was occupied for more than 19 months by a group of Native Americans, initially primarily from San Francisco, who were later joined by AIM and other urban Indians from other parts of the country, who were part of a wave of Native American activists organizing public protests across the US through the 1970s. In 1972, Alcatraz was transferred to the Department of Interio ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Washington (state)
Washington (), officially the State of Washington, is a state in the Pacific Northwest region of the Western United States. Named for George Washington—the first U.S. president—the state was formed from the western part of the Washington Territory, which was ceded by the British Empire in 1846, by the Oregon Treaty in the settlement of the Oregon boundary dispute. The state is bordered on the west by the Pacific Ocean, Oregon to the south, Idaho to the east, and the Canadian province of British Columbia to the north. It was admitted to the Union as the 42nd state in 1889. Olympia is the state capital; the state's largest city is Seattle. Washington is often referred to as Washington state to distinguish it from the nation's capital, Washington, D.C. Washington is the 18th-largest state, with an area of , and the 13th-most populous state, with more than 7.7 million people. The majority of Washington's residents live in the Seattle metropolitan area, the center of trans ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cape Disappointment Lighthouse
The Cape Disappointment Light is a lighthouse on Cape Disappointment near the mouth of the Columbia River in the U.S. state of Washington. History In 1848, a lighthouse was recommended to be located at Cape Disappointment in what was then the Oregon Territory. An appropriation of $53,000 was made in 1852. After the lighthouse was designed, a first-order Fresnel lens was ordered. When the lens arrived it was found to be too large for the tower. Rebuilding the tower took an additional two years. The first lighthouse in the Pacific Northwest was finally lit on October 15, 1856. In addition to the light, the station was equipped with a bell powered by a striking mechanism. The keeper's residence was about a quarter-mile away. The lighthouse had several shortcomings. The fog bell was sometimes inaudible due to the roar of ocean waves. It was discontinued in 1881 and moved to West Point Light in Seattle, and eventually to Warrior Rock Light near Portland. Also, the light was ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Humboldt Harbor Light
The Humboldt Harbor Light was an early lighthouse marking the entrance to Humboldt Bay. Plagued by fog, earthquakes, and flooding, it was eventually abandoned and left to deteriorate in favor of a new light at Table Bluff. History Humboldt Bay is reached through a narrow gap between two long sand spits, and the founding of Eureka, California in 1850 on the shores of the bay led to the provision of a lighthouse for the bay in the first set of eight west coast lights. The design was essentially that of the original Point Loma Light: a central tower with a 1½ story house erected around it. A fourth order Fresnel lens was provided and the light was first exhibited in December 1856. The protracted construction made this the last of the original eight lights to be completed, and in fact some lights in the next set were lit first. The light was situated in a sandy area towards the tip of the northern spit; the intent was for the light to serve both as a marker for the entrance and as ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Farallon Island Light
Farallon Island Light is a lighthouse on Farallon Islands, Southeast Farallon Island, California. One of the highest lights in California, it was constructed in 1855 to warn ships approaching San Francisco from the west away from the rocky islands. In later years it was shorn of its lantern, but it remains in use. History Farallon Island Light was constructed on Southeast Farallon Island. After the tower was complete, it proved too small to house a first-order Fresnel lens, and the tower had to be torn down and rebuilt. The lighthouse was lit for the first time in December 1855. In 1939, the United States Coast Guard took over the lighthouse when the United States Lighthouse Service merged with it. The Coast Guard maintained a presence until 1972. By that time, the lantern room and the Fresnel lens had been removed, and an automated aero beacon was placed on the tower. The lens is on display in the San Francisco Maritime National Historic Park visitor center on Hyde Street, whil ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
