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W40AN-D
W4 may refer to: * Form W-4, an American tax form * Heart Nebula or Westerhout 4, an interstellar cloud in Cassiopeia * London W4, a postcode district in west London, England * W4 (nuclear warhead), a planned variant of the 1949–1953 Mark 4 nuclear bomb * W4, complete oxidation of metal, a degree of meteorite weathering * WLLZ (FM), a radio station in Detroit, USA, known as W4 from 1966 to 2000 * WWWW-FM or W4 Country, a country music radio station in Ann Arbor, USA * LC Perú LC Perú S.A.C. was a Peruvian airline based in Lima, Peru. It operated scheduled domestic flights. Its main base was Jorge Chávez International Airport.. History The company was founded in 1993, they started operations as a cargo agent. In 199 ..., a Peruvian airline (IATA airline designator W4) * Warwick W-4 Hot Canary, a racing biplane * W4 tram, a class of electric trams built by the Melbourne & Metropolitan Tramways Board. See also * 4W (other) {{Letter-Number Combination Dis ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Form W-4
Form W-4 (otherwise known as the "Employee's Withholding Allowance Certificate") is an Internal Revenue Service (IRS) tax form completed by an employee in the United States to indicate his or her tax situation ( exemptions, status, etc.) to the employer. The W-4 form tells the employer the correct amount of federal tax to withhold from an employee's paycheck. Motivation The W-4 is based on the idea of "allowances"; the more allowances claimed, the less money the employer withholds for tax purposes. The W-4 Form is usually not sent to the IRS; rather, the employer uses the form in order to calculate how much of an employee's salary is withheld. An employee may claim allowances for oneself, one's spouse, and any dependents, along with other miscellaneous reasons, such as being single with only one job. In the latter case, this creates an oddity in that the employee will have one more exemption on the W-4 than on the 1040 tax return. This is not a tax deduction in itself, but a proc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Heart Nebula
The Heart Nebula (also known as the Running dog nebula, IC 1805, Sharpless 2-190) is an emission nebula, 7500 light years away from Earth and located in the Perseus Arm of the Galaxy in the constellation Cassiopeia. It was discovered by William Herschel on 3 November 1787. It displays glowing ionized hydrogen gas and darker dust lanes. The brightest part of the nebula (a knot at its western edge) is separately classified as NGC 896, because it was the first part of the nebula to be discovered. The nebula's intense red output and its morphology are driven by the radiation emanating from a small group of stars near the nebula's center. This open cluster An open cluster is a type of star cluster made of up to a few thousand stars that were formed from the same giant molecular cloud and have roughly the same age. More than 1,100 open clusters have been discovered within the Milky Way galaxy, an ... of stars, known as Collinder 26 or Melotte 15, contains a few bright stars ne ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
London W4
The W (Western and Paddington) postcode area, also known as the London W postcode area is a group of postcode districts covering part of central and part of West London, England. The area originates from the Western (W1) and Paddington (W2-14) districts of the London postal district. This area covers 35 postcode districts and around 18,554 live postcodes. Postal administration The Western district consists of the single original W1 postal district. The area that it covers is high-density and so has been subdivided into a number of smaller postcode districts. When districts are used for purposes other than the sorting of mail, such as use as a geographic reference and on street signs, the W1 subdivisions continue to be classed as one 'district'. In June 2000, there was a recoding of the area, with the W1M, W1N, W1P, W1R, W1V, W1X and W1Y districts being replaced. The mail centre for W1 is London Central, and that for W2-14 is Greenford. Deliveries for W1 (and for WC1 and WC2) ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
W4 (nuclear Warhead)
The Mark 4 nuclear bomb was an American implosion-type nuclear bomb based on the earlier Mark 3 Fat Man design, used in the Trinity test and the bombing of Nagasaki. With the Mark 3 needing each individual component to be hand-assembled by only highly trained technicians under closely controlled conditions, the purpose of the Mark 4 was to produce an atomic weapon as a practical piece of ordnance. The Mark 4 Mod 0 entered the stockpile starting March 19, 1949 and was in use until 1953. With over 500 units procured, the Mark 4 was the first mass-produced nuclear weapon. Design The Mark 4 utilized a near-identical nuclear explosive package to the 1561 assembly of the Mark 3 Fat Man, but the newly-formed Z Division of Los Alamos focused on re-engineering the electronics and conventional explosives packages to be more modular for easier assembly in the field. The priority objectives of the Mark 4 bomb program were to have the ability to monitor the weapon battery and electrical sy ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Meteorite Weathering
Meteorite weathering is the terrestrial alteration of a meteorite. Most meteorites date from the oldest times in the Solar System and are by far the oldest material available on our planet. Despite their age, they are vulnerable to the terrestrial environment. Water, chlorine and oxygen attack meteorites as soon as they reach the ground. Weathering scales In order to quantify the degree of alteration that a meteorite experienced, several qualitative weathering indices have been applied to antarctic and desert samples.P. A. Bland, M. E. Zolensky, G. K. Benedix, M. A. Sephton. 'Weathering of Chondritic Meteorites'' The most known weathering scale is based upon the effects seen in polished thin sections of chondritic meteorites and it ranges from W0 (pristine) to W6 (heavy alteration). It was proposed by Jull A. J. T. et al. (1991) and updated by Wlotzka(1993) and Al-Kathiri et al.(2005). * W0: no visible oxidation of metal or troilite, but may be noticeable in transmitted light a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
WLLZ (FM)
WLLZ (106.7 MHz, ''Detroit's Wheels'') is a commercial FM radio station licensed to Detroit, Michigan. It is owned by iHeartMedia and it broadcasts a classic rock radio format, focusing mostly on active rock titles from the 1980s and 1990s. Its studios are in the Detroit suburb of Farmington Hills on Halsted Road. WLLZ has an effective radiated power (ERP) of 61,000 watts. It is one of several Detroit FM stations that are grandfathered at a higher power than the maximum 50,000 watts that would be permitted today. The transmitter is atop the Cadillac Tower on Cadillac Square at Bates Avenue in Downtown Detroit. History Classical and jazz (1960-1966) The station began operations on October 16, 1960, as WDTM, airing classical music and jazz. It was owned by Taliesin Stations and was an affiliate of the WQXR Network, based at the leading New York City classical station. Beautiful music (1966-1970) In 1966, Gordon McLendon purchased the station, changed the call sign to ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
