|
Global Positioning System
The Global Positioning System (GPS), originally Navstar GPS, is a Radionavigation-satellite service, satellite-based radio navigation system owned by the United States government and operated by the United States Space Force. It is one of the satellite navigation, global navigation satellite systems (GNSS) that provide geolocation and Time transfer, time information to a Satellite navigation device, GPS receiver anywhere on or near the Earth where there is an unobstructed line of sight to four or more GPS satellites. It does not require the user to transmit any data, and operates independently of any telephone or Internet reception, though these technologies can enhance the usefulness of the GPS positioning information. It provides critical positioning capabilities to military, civil, and commercial users around the world. Although the United States government created, controls and maintains the GPS system, it is freely accessible to anyone with a GPS receiver. Overview Th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
United States Space Force
The United States Space Force (USSF) is the space service branch of the U.S. Armed Forces, one of the eight U.S. uniformed services, and the world's only independent space force. Along with its sister branch, the U.S. Air Force, the Space Force is part of the Department of the Air Force, one of the three civilian-led military departments within the Department of Defense. The Space Force, through the Department of the Air Force, is overseen by the secretary of the Air Force, a civilian political appointee who reports to the secretary of defense, and is appointed by the president with Senate confirmation. The military head of the Space Force is the chief of space operations who is typically the most senior Space Force officer. The chief of space operations exercises supervision over the Space Force's units and serves as one of the Joint Chiefs of Staff. The Space Force is the smallest U.S. armed service, consisting of 8,400 military personnel. The Space Force operates 77 sp ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
September 16
Events Pre-1600 * 681 – Pope Honorius I is posthumously excommunicated by the Sixth Ecumenical Council. *1400 – Owain Glyndŵr is declared Prince of Wales by his followers. 1601–1900 * 1620 – A determined band of 35 religious dissenters – Pilgrims set sail for Virginia from Plymouth, England in the ''Mayflower'', jubilant at the prospect of practicing their unorthodox brand of worship in the New World. * 1701 – James Francis Edward Stuart, sometimes called the "Old Pretender", becomes the Jacobite claimant to the thrones of England and Scotland. *1732 – In Campo Maior, Portugal, a storm hits the Armory and a violent explosion ensues, killing two-thirds of its inhabitants. *1776 – American Revolutionary War: The Battle of Harlem Heights is fought. * 1779 – American Revolutionary War: The Franco-American Siege of Savannah begins. *1810 – With the ''Grito de Dolores,'' Father Miguel Hidalgo begins Mexico's fight for independ ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
United States Congress
The United States Congress is the legislature of the federal government of the United States. It is bicameral, composed of a lower body, the House of Representatives, and an upper body, the Senate. It meets in the U.S. Capitol in Washington, D.C. Senators and representatives are chosen through direct election, though vacancies in the Senate may be filled by a governor's appointment. Congress has 535 voting members: 100 senators and 435 representatives. The U.S. vice president has a vote in the Senate only when senators are evenly divided. The House of Representatives has six non-voting members. The sitting of a Congress is for a two-year term, at present, beginning every other January. Elections are held every even-numbered year on Election Day. The members of the House of Representatives are elected for the two-year term of a Congress. The Reapportionment Act of 1929 establishes that there be 435 representatives and the Uniform Congressional Redistricting Act requires ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
GPS Block III
GPS Block III (previously Block IIIA) consists of the first ten GPS satellite blocks, GPS III satellites, which will be used to keep the Navstar Global Positioning System operational. Lockheed Martin designed, developed and manufactured the GPS III Non-Flight Satellite Testbed (GNST) and all ten Block III satellites. The first satellite in the series was launched in December 2018. The tenth and final GPS Block III launch is projected in 2023. History The United States' Global Positioning System (GPS) reached Full Operational Capability on 17 July 1995, completing its original design goals. Advances in technology and new demands on the existing system led to the effort to modernize the GPS system. In 2000, the U.S. Congress authorized the effort, referred to as GPS III. The project involves new ground stations and new satellites, with additional navigation signals for both civilian and military users, and aims to improve the accuracy and availability for all users. Raytheo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
2007
File:2007 Events Collage.png, From top left, clockwise: Steve Jobs unveils Apple's first iPhone; TAM Airlines Flight 3054 overruns a runway and crashes into a gas station, killing almost 200 people; Former Pakistani Prime Minister of Pakistan, Prime Minister Benazir Bhutto is Assassination of Benazir Bhutto, assassinated; 2007 marked the beginning of the Subprime mortgage crisis in the United States; A Iraq War troop surge of 2007, surge of troops is sent to fight in the Iraq War; a gunman Virginia Tech shooting, kills 32 people at Virginia Tech; Google Street View is unveiled to the world; The Treaty of Lisbon is signed by member states of the European Union, 300x300px, thumb rect 0 0 200 200 iPhone (1st generation) rect 200 0 400 200 TAM Airlines Flight 3054 rect 400 0 600 200 Assassination of Benazir Bhutto rect 0 200 300 400 Treaty of Lisbon rect 300 200 600 400 Subprime mortgage crisis rect 0 400 200 600 Google Street View rect 200 400 400 600 Virginia Tech shooting rect 400 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
2000
File:2000 Events Collage.png, From left, clockwise: Protests against Bush v. Gore after the 2000 United States presidential election; Heads of state meet for the Millennium Summit; The International Space Station in its infant form as seen from STS-97; The 2000 Summer Olympics are held in Sydney; A U.S. Air Force MH-53 flies over the 2000 Mozambique flood; An Air France Concorde similar to the one that crashed after takeoff from Charles de Gaulle Airport; The USS Cole is bombed by Al-Qaeda; Times Square after the ball drop that heralded the New Millennium., 300x300px, thumb rect 0 0 200 200 Bush v. Gore rect 200 0 400 200 Millennium Summit rect 400 0 600 200 Expedition 1 rect 0 200 300 400 Millennium celebrations rect 300 200 600 400 2000 Summer Olympics rect 0 400 200 600 USS Cole bombing rect 200 400 400 600 Air France Flight 4590 rect 400 400 600 600 2000 Mozambique flood 2000 was designated as the International Year for the Culture of Peace and the World Mathema ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
May 1
Events Pre-1600 * 305 – Diocletian and Maximian retire from the office of Roman emperor. * 880 – The Nea Ekklesia is inaugurated in Constantinople, setting the model for all later cross-in-square Orthodox churches. * 1169 – Norman mercenaries land at Bannow Bay in Leinster, marking the beginning of the Norman invasion of Ireland. *1328 – Wars of Scottish Independence end: By the Treaty of Edinburgh–Northampton, England recognises Scotland as an independent state. * 1486 – Christopher Columbus presents his plans discovering a western route to the Indies to the Spanish Queen Isabella I of Castile. 1601–1900 * 1707 – The Act of Union joining England and Scotland to form the Kingdom of Great Britain takes effect. * 1753 – Publication of ''Species Plantarum'' by Linnaeus, and the formal start date of plant taxonomy adopted by the International Code of Botanical Nomenclature. *1807 – The Slave Trade Act 1807 takes effect, abo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bill Clinton
William Jefferson Clinton ( né Blythe III; born August 19, 1946) is an American politician who served as the 42nd president of the United States from 1993 to 2001. He previously served as governor of Arkansas from 1979 to 1981 and again from 1983 to 1992, and as attorney general of Arkansas from 1977 to 1979. A member of the Democratic Party, Clinton became known as a New Democrat, as many of his policies reflected a centrist "Third Way" political philosophy. He is the husband of Hillary Clinton, who was a senator from New York from 2001 to 2009, secretary of state from 2009 to 2013 and the Democratic nominee for president in the 2016 presidential election. Clinton was born and raised in Arkansas and attended Georgetown University. He received a Rhodes Scholarship to study at University College, Oxford and later graduated from Yale Law School. He met Hillary Rodham at Yale; they married in 1975. After graduating from law school, Clinton returned to Arkansas ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Federal Aviation Administration
The Federal Aviation Administration (FAA) is the largest transportation agency of the U.S. government and regulates all aspects of civil aviation in the country as well as over surrounding international waters. Its powers include air traffic management, certification of personnel and aircraft, setting standards for airports, and protection of U.S. assets during the launch or re-entry of commercial space vehicles. Powers over neighboring international waters were delegated to the FAA by authority of the International Civil Aviation Organization. Created in , the FAA replaced the former Civil Aeronautics Administration (CAA) and later became an agency within the U.S. Department of Transportation. Major functions The FAA's roles include: *Regulating U.S. commercial space transportation *Regulating air navigation facilities' geometric and flight inspection standards *Encouraging and developing civil aeronautics, including new aviation technology *Issuing, suspending, or revoking ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
US Coast Guard
The United States Coast Guard (USCG) is the maritime security, search and rescue, and law enforcement service branch of the United States Armed Forces and one of the country's eight uniformed services. The service is a maritime, military, multi-mission service unique among the United States military branches for having a maritime law enforcement mission with jurisdiction in both domestic and international waters and a federal regulatory agency mission as part of its duties. It is the largest and most powerful coast guard in the world, rivaling the capabilities and size of most navies. The U.S. Coast Guard is a humanitarian and security service. It protects the United States' borders and economic and security interests abroad; and defends its sovereignty by safeguarding sea lines of communication and commerce across vast territorial waters spanning 95,000 miles of coastline and its Exclusive Economic Zone. With national and economic security depending upon open global trade and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Differential GPS
Differential Global Positioning Systems (DGPSs) supplement and enhance the positional data available from global navigation satellite systems (GNSSs). A DGPS for GPS can increase accuracy by about a thousandfold, from approximately to . DGPSs consist of networks of fixed position, ground-based reference stations. Each reference station calculates the difference between its highly accurate known position and its less accurate satellite-derived position. The stations broadcast this data locally—typically using ground-based transmitters of shorter range. Non-fixed (mobile) receivers use it to correct their position by the same amount, thereby improving their accuracy. The United States Coast Guard (USCG) and the Canadian Coast Guard (CCG) each run DGPSs in the United States and Canada on longwave radio frequencies between and near major waterways and harbors. The USCG's DGPS was named NDGPS (Nationwide DGPS) and was jointly administered by the Coast Guard and the U.S. Departmen ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
.png "Click for more on -> Bill Clinton")
