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PENREN
The Pentagon Renovation Program (PENREN) was a long-term project by the United States Department of Defense to perform a complete slab-to-slab renovation of the Pentagon in Arlington County, Virginia, Arlington, Virginia. The program began in the 1990s, and was completed in June 2011. The full-scale renovation became necessary because by the mid-1990s, the Pentagon had never undergone a major renovation and building systems had deteriorated beyond repair, requiring complete replacement. Asbestos throughout the building made almost any building work complex and disruptive. The Defense Authorization Act of 1991 transferred control of the Pentagon Reservation from the General Services Administration to the Department of Defense, and established the Pentagon Reservation Maintenance Revolving Fund, designed to fund Pentagon renovations. This move enabled the Secretary of Defense to determine rental rates for Pentagon tenants to help fund the renovation. Projects Information techno ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
PENREN
The Pentagon Renovation Program (PENREN) was a long-term project by the United States Department of Defense to perform a complete slab-to-slab renovation of the Pentagon in Arlington County, Virginia, Arlington, Virginia. The program began in the 1990s, and was completed in June 2011. The full-scale renovation became necessary because by the mid-1990s, the Pentagon had never undergone a major renovation and building systems had deteriorated beyond repair, requiring complete replacement. Asbestos throughout the building made almost any building work complex and disruptive. The Defense Authorization Act of 1991 transferred control of the Pentagon Reservation from the General Services Administration to the Department of Defense, and established the Pentagon Reservation Maintenance Revolving Fund, designed to fund Pentagon renovations. This move enabled the Secretary of Defense to determine rental rates for Pentagon tenants to help fund the renovation. Projects Information techno ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
United States Air Force Memorial
The United States Air Force Memorial honors the service of the personnel of the United States Air Force and its heritage organizations. The Memorial is located in Arlington County, Virginia, on the former grounds of the Navy Annex near The Pentagon and Arlington National Cemetery. The Memorial is southwest of the intersection of Columbia Pike and South Joyce Street and is accessible from the north side of Columbia Pike. It was the last project of American architect James Ingo Freed (known for the design of the United States Holocaust Memorial Museum) with the firm Pei Cobb Freed & Partners. History In January 1992, the Air Force Memorial Foundation was incorporated to pursue the development of a memorial that would honor the people in the United States Air Force. In December 1993, President Clinton signed authorizing the Air Force Memorial. In 1994, the National Capital Memorial Advisory Commission approved a site next to Marshall Drive and State Route 110, down the hill fr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Skylight (window)
A skylight (sometimes called a rooflight) is a light-permitting structure or window, usually made of transparent or translucent glass, that forms all or part of the roof space of a building for daylighting and ventilation purposes. History Open skylights were used in Ancient Roman architecture, such as the oculus of the Pantheon. Glazed 'closed' skylights have been in use since the Industrial Revolution made advances in glass production manufacturing. Mass production units since the mid-20th century have brought skylights to many uses and contexts. Energy conservation has brought new motivation, design innovation, transmission options, and efficiency rating systems for skylights. Prior to the Industrial Revolution, it was Spain and France that probably had the leading technology in architectural glass. One of the earliest forms of glass skylight can be seen at the Burgos Cathedral in the Chapel of the Constable. Other early form of glass skylight can be seen at the Palace of V ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Escalator
An escalator is a moving staircase which carries people between floors of a building or structure. It consists of a motor-driven chain of individually linked steps on a track which cycle on a pair of tracks which keep the step tread horizontal. Escalators are often used around the world in places where lifts would be impractical, or they can be used in conjunction with them. Principal areas of usage include department stores, shopping malls, airports, transit systems (railway/railroad stations), convention centers, hotels, arenas, stadiums and public buildings. Escalators have the capacity to move large numbers of people. They have no waiting interval (except during very heavy traffic). They can be used to guide people toward main exits or special exhibits and may be weatherproofed for outdoor use. A non-functional escalator can function as a normal staircase, whereas many other methods of transport become useless when they break down or lose power. Design, components ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
United Airlines Flight 93
United Airlines Flight 93 was a domestic scheduled passenger flight that was hijacked by four al-Qaeda attackers aboard the plane on the morning of September 11, 2001, as part of the September 11 attacks. The plane eventually crashed in Somerset County, Pennsylvania following an attempt by the passengers and crew to regain control of the plane from the hijackers. All 44 people on board were killed, including the hijackers. The aircraft, a Boeing 757-222, was flying United Airlines' daily scheduled morning flight from Newark International Airport in New Jersey to San Francisco International Airport in California. The hijackers stormed the aircraft's cockpit 46 minutes after takeoff. The captain and first officer struggled with the hijackers, which was transmitted to air traffic control. Ziad Jarrah, who had trained as a pilot, took control of the aircraft and diverted it back toward the east coast, in the direction of Washington, D.C., the U.S. capital. Khalid Sheikh Mohamme ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Todd Beamer
Todd Morgan Beamer (November 24, 1968 – September 11, 2001) was an American passenger aboard United Airlines Flight 93, which was aircraft hijacking, hijacked and crashed as part of the September 11 attacks in 2001. He was one of the passengers who attempted to regain control of the aircraft from the hijackers. During the struggle, the Boeing 757 lost control and crashed into a field in Stonycreek Township, Somerset County, Pennsylvania, Stonycreek Township near Shanksville, Pennsylvania, killing everyone on board, but saving United Airlines Flight 93#Possible targets, the hijackers' intended target and additional victims. Biography Todd Beamer was born on November 24, 1968, in Flint, Michigan, to David Beamer, an IBM sales representative, and Peggy Jackson Beamer, a muralist,Evensen, Bruce J. (2009)"Beamer, Todd Morgan" ''American National Biography''. Retrieved May 14, 2014. the middle child of three and only son. Beamer and his two sisters, Melissa and Michele, were raised " ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
American Airlines Flight 77
American Airlines Flight 77 was a scheduled American Airlines domestic transcontinental passenger flight from Washington Dulles International Airport in Dulles, Virginia, to Los Angeles International Airport in Los Angeles, California. The Boeing 757-223 aircraft serving the flight was hijacked by five al-Qaeda terrorists on the morning of September 11, 2001, as part of the September 11 attacks. The hijackers deliberately crashed the plane into the Pentagon in Arlington County, Virginia, near Washington, D.C., killing all 64 aboard and another 125 in the building. 31 minutes after takeoff, the hijackers stormed the cockpit and forced the passengers, crew, and pilots to the rear of the aircraft. Hani Hanjour, one of the hijackers who was trained as a pilot, assumed control of the flight. Unknown to the terrorists, two people aboard made phone calls to family members and relayed information on the hijacking. Hanjour crashed the aircraft into the western side of the Pentagon at 0 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Project Pheonix April 2002
A project is any undertaking, carried out individually or collaboratively and possibly involving research or design, that is carefully planned to achieve a particular goal. An alternative view sees a project managerially as a sequence of events: a "set of interrelated tasks to be executed over a fixed period and within certain cost and other limitations". A project may be a temporary (rather than a permanent) social system (work system), possibly staffed by teams (within or across organizations) to accomplish particular tasks under time constraints. A project may form a part of wider programme management or function as an ''ad hoc'' system. Note that open-source software "projects" or artists' musical "projects" (for example) may lack defined team-membership, precise planning and/or time-limited durations. Overview The word ''project'' comes from the Latin word ''projectum'' from the Latin verb ''proicere'', "before an action," which in turn comes from ''pro-'', which de ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Project Phoenix Repair Prep Oct2001
A project is any undertaking, carried out individually or collaboratively and possibly involving research or design, that is carefully planned to achieve a particular goal. An alternative view sees a project managerially as a sequence of events: a "set of interrelated tasks to be executed over a fixed period and within certain cost and other limitations". A project may be a temporary (rather than a permanent) social system (work system), possibly staffed by teams (within or across organizations) to accomplish particular tasks under time constraints. A project may form a part of wider programme management or function as an ''ad hoc'' system. Note that open-source software "projects" or artists' musical "projects" (for example) may lack defined team-membership, precise planning and/or time-limited durations. Overview The word ''project'' comes from the Latin word ''projectum'' from the Latin verb ''proicere'', "before an action," which in turn comes from ''pro-'', which de ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Project Pheonix Lets Roll
A project is any undertaking, carried out individually or collaboratively and possibly involving research or design, that is carefully planned to achieve a particular goal. An alternative view sees a project managerially as a sequence of events: a "set of interrelated tasks to be executed over a fixed period and within certain cost and other limitations". A project may be a temporary (rather than a permanent) social system (work system), possibly staffed by teams (within or across organizations) to accomplish particular tasks under time constraints. A project may form a part of wider programme management or function as an ''ad hoc'' system. Note that open-source software "projects" or artists' musical "projects" (for example) may lack defined team-membership, precise planning and/or time-limited durations. Overview The word ''project'' comes from the Latin word ''projectum'' from the Latin verb ''proicere'', "before an action," which in turn comes from ''pro-'', which de ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pentagon Phoenix Project Construction
In geometry, a pentagon (from the Greek πέντε ''pente'' meaning ''five'' and γωνία ''gonia'' meaning ''angle'') is any five-sided polygon or 5-gon. The sum of the internal angles in a simple pentagon is 540°. A pentagon may be simple or self-intersecting. A self-intersecting ''regular pentagon'' (or ''star pentagon'') is called a pentagram. Regular pentagons A '' regular pentagon'' has Schläfli symbol and interior angles of 108°. A '' regular pentagon'' has five lines of reflectional symmetry, and rotational symmetry of order 5 (through 72°, 144°, 216° and 288°). The diagonals of a convex regular pentagon are in the golden ratio to its sides. Given its side length t, its height H (distance from one side to the opposite vertex), width W (distance between two farthest separated points, which equals the diagonal length D) and circumradius R are given by: :\begin H &= \frac~t \approx 1.539~t, \\ W= D &= \frac~t\approx 1.618~t, \\ W &= \sqrt ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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