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Spectra (installation)
''Spectra'' is the name of a series of art installations by Ryoji Ikeda which use intense white light as a sculptural material. The most recent presentation of ''spectra'' was in Hobart, Tasmania, Australia for four days ending 24 June, 2018 to mark the winter solstice, and as an installation piece at the Dark Mofo festival held by MONA. ''spectra msterdam' was the first presentation of the work in 2008 its current form; an array of xenon lamps pointed skywards lit from dusk till dawn accompanied by a mathematically derived score audible from each of the lamp bases. The work was first commissioned and produced by Forma Arts. History Ryoji Ikeda has produced ''spectra'' installations in a number of locations, all in several different configurations. The first was a tunnel of light and sound at JFK Airport at Eero Saarinen's abandoned TWA Terminal in New York in 2004. Four site-specific light and sound installations were created across Amsterdam in 2008 for the city's ''Dream ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Spectra Above Chimney Tops
Spectra may refer to: * The plural of spectrum, conditions or values that vary over a continuum, especially the colours of visible light * ''Spectra'' (journal), of the Museum Computer Network (MCN) * The plural of spectrum (topology), an object representing a generalized cohomology theory in algebraic topology * Spectra (mathematical association), an association of LGBT mathematicians * Spectra (Latreille 1802), an order of stick-insects, or Phasmatodea Companies and products * Kia Spectra, a car developed by Kia Motors from 2000 to the present. * Motorola Spectra and Astro Spectra, models of two-way radio. * Optare Spectra, a bus body built by Optare. * Polaroid Spectra, a type of instant camera and instant film formerly produced by the Polaroid Corporation. * RCA Spectra 70, the name for a series of mainframe computers made by RCA, and which were sold to Univac to become the Univac 90/60 series computer. * Spectra, a brand of ultra-high-molecular-weight polyethylene fiber. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Boris Johnson
Alexander Boris de Pfeffel Johnson (; born 19 June 1964) is a British politician, writer and journalist who served as Prime Minister of the United Kingdom and Leader of the Conservative Party from 2019 to 2022. He previously served as Foreign Secretary from 2016 to 2018 and as Mayor of London from 2008 to 2016. Johnson has been Member of Parliament (MP) for Uxbridge and South Ruislip since 2015, having previously been MP for Henley from 2001 to 2008. Johnson attended Eton College, and studied Classics at Balliol College, Oxford. He was elected president of the Oxford Union in 1986. In 1989, he became the Brussels correspondent — and later political columnist — for ''The Daily Telegraph'', and from 1999 to 2005 was the editor of '' The Spectator''. Following his election to parliament in 2001 he was a shadow minister under Conservative leaders Michael Howard and David Cameron. In 2008, Johnson was elected mayor of London and resigned from the House of Common ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Luxor Hotel
Luxor Las Vegas is a 30-story casino hotel situated on the southern end of the Las Vegas Strip in Paradise, Nevada. The hotel is owned by Vici Properties and operated by MGM Resorts International and has a casino with over 2,000 slot machines and 87 table games. The casino opened in 1993 and was renovated and expanded several times. Later renovation work modernized the design of the property and raised the hotel's capacity to 4,407 rooms, including 442 suites. The hotel's rooms line the interior walls of the main tower, which has a pyramid shape, and the 22-story twin ziggurat towers. The hotel is named for the city of Luxor (ancient Thebes) in Egypt. History Construction and opening The resort was announced by Circus Circus Enterprises on November 14, 1991. Known temporarily as "Project X", the pyramid-shaped resort would cost $290 million, and would be built on the Las Vegas Strip, on land located south of the company's Excalibur Hotel and Casino. Groundbreaking took place ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Victoria Tower Gardens
Victoria Tower Gardens is a public park along the north bank of the River Thames in London, adjacent to the Victoria Tower, at the south-western corner of the Palace of Westminster. The park, extends southwards from the Palace to Lambeth Bridge, between Millbank and the river. It forms part of the Thames Embankment. Victoria Tower Gardens is a Grade II* listed park created in two stages in 1879–81 and 1913–14. It is in a conservation area, is partly within the UNESCO World Heritage Site of Westminster, and is designated a zone of Monument Saturation. History The northern part of the gardens was acquired by the Government under the Houses of Parliament Act 1867 in order to reduce the fire risk to the Palace of Westminster from the wharves there. There was disagreement about whether at least some of the land should be built on, but eventually the newspaper retailer William Henry Smith donated £1000 towards laying it out as an open space and Parliament paid the remaining £14 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sine Wave
A sine wave, sinusoidal wave, or just sinusoid is a curve, mathematical curve defined in terms of the ''sine'' trigonometric function, of which it is the graph of a function, graph. It is a type of continuous wave and also a Smoothness, smooth periodic function. It occurs often in mathematics, as well as in physics, engineering, signal processing and many other fields. Formulation Its most basic form as a function of time (''t'') is: y(t) = A\sin(2 \pi f t + \varphi) = A\sin(\omega t + \varphi) where: * ''A'', ''amplitude'', the peak deviation of the function from zero. * ''f'', ''frequency, ordinary frequency'', the ''Real number, number'' of oscillations (cycles) that occur each second of time. * ''ω'' = 2''f'', ''angular frequency'', the rate of change of the function argument in units of radians per second. * \varphi, ''phase (waves), phase'', specifies (in radians) where in its cycle the oscillation is at ''t'' = 0. When \varphi is non-zero, the entire waveform appears to ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Biodiesel
Biodiesel is a form of diesel fuel derived from plants or animals and consisting of long-chain fatty acid esters. It is typically made by chemically reacting lipids such as animal fat (tallow), soybean oil, or some other vegetable oil with an alcohol, producing a methyl, ethyl or propyl ester by the process of transesterification. Unlike the vegetable and waste oils used to fuel converted diesel engines, biodiesel is a drop-in biofuel, meaning it is compatible with existing diesel engines and distribution infrastructure. However, it is usually blended with petrodiesel (typically to less than 10%) since most engines cannot run on pure Biodiesel without modification. Biodiesel blends can also be used as heating oil. The US National Biodiesel Board defines "biodiesel" as a mono-alkyl ester. Blends Blends of biodiesel and conventional hydrocarbon-based diesel are most commonly distributed for use in the retail diesel fuel marketplace. Much of the world uses a system know ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Diesel Generator
A diesel generator (DG) (also known as a diesel Genset) is the combination of a diesel engine with an electric generator (often an alternator) to generate electrical energy. This is a specific case of engine generator. A diesel compression-ignition engine is usually designed to run on diesel fuel, but some types are adapted for other liquid fuels or natural gas. Diesel generating sets are used in places without connection to a power grid, or as an emergency power supply if the grid fails, as well as for more complex applications such as peak-lopping, grid support, and export to the power grid. Diesel generator size is crucial to minimize low load or power shortages. Sizing is complicated by the characteristics of modern electronics, specifically non-linear loads. In size ranges around 50 MW and above, an open cycle gas turbine is more efficient at full load than an array of diesel engines, and far more compact, with comparable capital costs; but for regular part-loading, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Xenon Arc Lamp
A xenon arc lamp is a highly specialized type of gas discharge lamp, an electric light that produces light by passing electricity through ionized xenon gas at high pressure. It produces a bright white light to simulate sunlight, with applications in movie projectors in theaters, in searchlights, and for specialized uses in industry and research. For instance, Xenon arc lamps with mercury lamps are the two most common lamps used in wide-field fluorescence microscopes. Types Xenon arc lamps can be roughly divided into three categories: continuous-output xenon short-arc lamps, continuous-output xenon long-arc lamps, and xenon flash lamps (which are usually considered separately). Each consists of a fused quartz or other heat resistant glass arc tube, with a tungsten metal electrode at each end. The glass tube is first evacuated and then re-filled with xenon gas. For xenon flashtubes, a third "trigger" electrode usually surrounds the exterior of the arc tube. The lifetime of a x ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
The Lamps Are Going Out
"The lamps are going out all over Europe, we shall not see them lit again in our life-time", British Foreign Secretary Sir Edward Grey remarked to a friend on the eve of the United Kingdom's entry into the First World War. First published in Grey's memoirs in 1925, the statement earned wide attention as an accurate perception of the First World War and its geopolitical and cultural consequences. Original sources Grey's memoirs ''Twenty-Five Years 1892–1916'' mention the remark as being made on 3 August 1914: In 1927, John Alfred Spender, editor of the ''Westminster Gazette'' until 1922, identified himself as the friend to whom Grey had spoken: Later allusions Grey's quotation has been used as a summation of the war in numerous historical works. The German author Ludwig Reiners (1896–1957) published an account of World War I entitled ''The lamps went out in Europe''. Therein Grey's comment is followed by the assertion attributed to Otto von Bismarck: "The mistakes tha ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Edward Grey, 1st Viscount Grey Of Fallodon
Edward Grey, 1st Viscount Grey of Fallodon, (25 April 1862 – 7 September 1933), better known as Sir Edward Grey, was a British Liberal statesman and the main force behind British foreign policy in the era of the First World War. An adherent of the " New Liberalism", he served as foreign secretary from 1905 to 1916, the longest continuous tenure of any holder of that office. He renewed the 1902 alliance with Japan in 1911. The centrepiece of his policy was the defence of France against German aggression, while avoiding a binding alliance with Paris. He supported France in the Moroccan crises of 1905 and 1911. Another major achievement was the Anglo-Russian entente of 1907. He resolved an outstanding conflict with Germany over the Baghdad railway in 1913. His most important action came in the July Crisis in 1914, when he led Britain into World War I against Germany. He convinced the Liberal cabinet that Britain had an obligation and was honour-bound to defend France, and pre ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Heritage Lottery Fund
The National Lottery Heritage Fund, formerly the Heritage Lottery Fund (HLF), distributes a share of National Lottery funding, supporting a wide range of heritage projects across the United Kingdom. History The fund's predecessor bodies were the National Land Fund, established in 1946, and the National Heritage Memorial Fund, established in 1980. The current body was established as the "Heritage Lottery Fund" in 1994. It was re-branded as the National Lottery Heritage Fund in January 2019. Activities The fund's income comes from the National Lottery which is managed by Camelot Group. Its objectives are "to conserve the UK's diverse heritage, to encourage people to be involved in heritage and to widen access and learning". As of 2019, it had awarded £7.9 billion to 43,000 projects. In 2006, the National Lottery Heritage Fund launched the Parks for People program with the aim to revitalize historic parks and cemeteries. From 2006 to 2021, the Fund had granted £254million ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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