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Project West Ford
Project West Ford (also known as Westford Needles and Project Needles) was a test carried out by Massachusetts Institute of Technology's Lincoln Laboratory on behalf of the United States military in 1961 and 1963 to create an artificial ionosphere above the Earth. This was done to solve a major weakness that had been identified in military communications. History At the height of the Cold War, all international communications were either sent through submarine communications cables or bounced off the natural ionosphere. The United States military were concerned that the Soviets might cut those cables, forcing the unpredictable ionosphere to be the only means of communication with overseas forces. To mitigate the potential threat, Walter E. Morrow started Project Needles at the MIT Lincoln Laboratory in 1958. The goal of the project was to place a ring of 480,000,000 (Abstract) copper dipole antennas in orbit to facilitate global radio communication. The dipoles collectively pr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
West Ford Needles And Stamp
West or Occident is one of the four cardinal directions or points of the compass. It is the opposite direction from east and is the direction in which the Sun sets on the Earth. Etymology The word "west" is a Germanic word passed into some Romance languages (''ouest'' in French, ''oest'' in Catalan, ''ovest'' in Italian, ''oeste'' in Spanish and Portuguese). As in other languages, the word formation stems from the fact that west is the direction of the setting sun in the evening: 'west' derives from the Indo-European root ''*wes'' reduced from ''*wes-pero'' 'evening, night', cognate with Ancient Greek ἕσπερος hesperos 'evening; evening star; western' and Latin vesper 'evening; west'. Examples of the same formation in other languages include Latin occidens 'west' from occidō 'to go down, to set' and Hebrew מַעֲרָב maarav 'west' from עֶרֶב erev 'evening'. Navigation To go west using a compass for navigation (in a place where magnetic north is the same dire ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Wavelength
In physics, the wavelength is the spatial period of a periodic wave—the distance over which the wave's shape repeats. It is the distance between consecutive corresponding points of the same phase on the wave, such as two adjacent crests, troughs, or zero crossings, and is a characteristic of both traveling waves and standing waves, as well as other spatial wave patterns. The inverse of the wavelength is called the spatial frequency. Wavelength is commonly designated by the Greek letter ''lambda'' (λ). The term ''wavelength'' is also sometimes applied to modulated waves, and to the sinusoidal envelopes of modulated waves or waves formed by interference of several sinusoids. Assuming a sinusoidal wave moving at a fixed wave speed, wavelength is inversely proportional to frequency of the wave: waves with higher frequencies have shorter wavelengths, and lower frequencies have longer wavelengths. Wavelength depends on the medium (for example, vacuum, air, or water) that a wav ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
The New York Times
''The New York Times'' (''the Times'', ''NYT'', or the Gray Lady) is a daily newspaper based in New York City with a worldwide readership reported in 2020 to comprise a declining 840,000 paid print subscribers, and a growing 6 million paid digital subscribers. It also is a producer of popular podcasts such as '' The Daily''. Founded in 1851 by Henry Jarvis Raymond and George Jones, it was initially published by Raymond, Jones & Company. The ''Times'' has won 132 Pulitzer Prizes, the most of any newspaper, and has long been regarded as a national " newspaper of record". For print it is ranked 18th in the world by circulation and 3rd in the U.S. The paper is owned by the New York Times Company, which is publicly traded. It has been governed by the Sulzberger family since 1896, through a dual-class share structure after its shares became publicly traded. A. G. Sulzberger, the paper's publisher and the company's chairman, is the fifth generation of the family to head the pa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Adlai Stevenson II
Adlai Ewing Stevenson II (; February 5, 1900 – July 14, 1965) was an American politician and diplomat who was twice the Democratic nominee for President of the United States. He was the grandson of Adlai Stevenson I, the 23rd vice president of the United States. Raised in Bloomington, Illinois, Stevenson was a member of the Democratic Party. He served in numerous positions in the federal government during the 1930s and 1940s, including the Agricultural Adjustment Administration, Federal Alcohol Administration, Department of the Navy, and the State Department. In 1945, he served on the committee that created the United Nations, and he was a member of the initial U.S. delegations to the UN. In 1948, he was elected governor of Illinois, defeating incumbent governor Dwight H. Green in an upset. As governor, he reformed the state police, cracked down on illegal gambling, improved the state highways, and attempted to cleanse the state government of corruption. Stevenson also sou ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
United Nations
The United Nations (UN) is an intergovernmental organization whose stated purposes are to maintain international peace and international security, security, develop friendly relations among nations, achieve international cooperation, and be a centre for harmonizing the actions of nations. It is the world's largest and most familiar international organization. The UN is headquarters of the United Nations, headquartered on extraterritoriality, international territory in New York City, and has other main offices in United Nations Office at Geneva, Geneva, United Nations Office at Nairobi, Nairobi, United Nations Office at Vienna, Vienna, and Peace Palace, The Hague (home to the International Court of Justice). The UN was established after World War II with Dumbarton Oaks Conference, the aim of preventing future world wars, succeeding the League of Nations, which was characterized as ineffective. On 25 April 1945, 50 governments met in San Francisco for United Nations Conference ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Space Debris
Space debris (also known as space junk, space pollution, space waste, space trash, or space garbage) are defunct human-made objects in space—principally in Earth orbit—which no longer serve a useful function. These include derelict spacecraft—nonfunctional spacecraft and abandoned launch vehicle stages—mission-related debris, and particularly numerous in Earth orbit, fragmentation debris from the breakup of derelict rocket bodies and spacecraft. In addition to derelict human-made objects left in orbit, other examples of space debris include fragments from their disintegration, erosion and collisions or even paint flecks, solidified liquids expelled from spacecraft, and unburned particles from solid rocket motors. Space debris represents a risk to spacecraft. Space debris is typically a negative externality—it creates an external cost on others from the initial action to launch or use a spacecraft in near-Earth orbit—a cost that is typically not taken into account n ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
International Academy Of Astronautics
The International Academy of Astronautics (IAA) is an independent non-governmental organization established in Stockholm ( Sweden) on August 16, 1960, by Dr. Theodore von Kármán, and recognized by the United Nations in 1996. The IAA has elected members from all over the world. Since 1960, the IAA has brought together the world’s foremost experts in the disciplines of astronautics on a regular basis: * to recognize the accomplishments of their peers, * to explore and discuss cutting-edge issues in space research and technology, and * to provide direction and guidance in the non-military uses of space and the ongoing exploration of the solar system. The IAA is involved in numerous scientific activities. For example, the Academy: * Encourages international scientific cooperation through conferences, symposia and meetings in the area of: space sciences, space life sciences, space technology & system development, space systems operations & utilization, space policy, law & econo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pravda
''Pravda'' ( rus, Правда, p=ˈpravdə, a=Ru-правда.ogg, "Truth") is a Russian broadsheet newspaper, and was the official newspaper of the Communist Party of the Soviet Union, when it was one of the most influential papers in the country with a newspaper circulation, circulation of 11 million. The newspaper began publication on 5 May 1912 in the Russian Empire, but was already extant abroad in January 1911. It emerged as a leading newspaper of the Soviet Union after the October Revolution. The newspaper was an organ of the Central Committee of the Communist Party of the Soviet Union, Central Committee of the CPSU between 1912 and 1991. After the dissolution of the Soviet Union ''Pravda'' was sold off by President of Russia, Russian President Boris Yeltsin to a Greek business family in 1996, and the paper came under the control of their private company Pravda International. In 1996, there was an internal dispute between the owners of Pravda International and some of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Maxwell Air Force Base
Maxwell Air Force Base , officially known as Maxwell-Gunter Air Force Base, is a United States Air Force (USAF) installation under the Air Education and Training Command (AETC). The installation is located in Montgomery, Alabama, United States. Occupying the site of the first Wright Flying School, it was named in honor of Second Lieutenant William C. Maxwell, a native of Atmore, Alabama. The base is the headquarters of Air University (AU), a major component of Air Education and Training Command (AETC), and is the U.S. Air Force's center for Joint Professional Military Education (PME). The host wing for Maxwell-Gunter is the 42d Air Base Wing (42 ABW). The Air Force Reserve Command's 908th Airlift Wing (908 AW) is a tenant unit and the only operational flying unit at Maxwell. The 908 AW and its subordinate 357th Airlift Squadron (357 AS) operates eight C-130H Hercules aircraft for theater airlift in support of combatant commanders worldwide. As an AFRC airlift unit, the 908th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Air Force History And Museums Program
The atmosphere of Earth is the layer of gases, known collectively as air, retained by Earth's gravity that surrounds the planet and forms its planetary atmosphere. The atmosphere of Earth protects life on Earth by creating pressure allowing for liquid water to exist on the Earth's surface, absorbing ultraviolet solar radiation, warming the surface through heat retention (greenhouse effect), and reducing temperature extremes between day and night (the diurnal temperature variation). By mole fraction (i.e., by number of molecules), dry air contains 78.08% nitrogen, 20.95% oxygen, 0.93% argon, 0.04% carbon dioxide, and small amounts of other gases. Air also contains a variable amount of water vapor, on average around 1% at sea level, and 0.4% over the entire atmosphere. Air composition, temperature, and atmospheric pressure vary with altitude. Within the atmosphere, air suitable for use in photosynthesis by terrestrial plants and breathing of terrestrial animals is found only in E ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Royal Astronomical Society
(Whatever shines should be observed) , predecessor = , successor = , formation = , founder = , extinction = , merger = , merged = , type = NGO, learned society , status = Registered charity , purpose = To promote the sciences of astronomy & geophysics , professional_title = Fellow of the Royal Astronomical Society (FRAS) , headquarters = Burlington House , location = Piccadilly, London , coords = , region_served = , services = , membership = , language = , general = , leader_title = Patron , leader_name = King Charles III , leader_title2 = President , leader_name2 = Mike Edmunds , leader_title3 = Executive Director , leader_name3 = Philip Diamond , leader_title4 = , leader_name4 = , key_peop ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Damn Interesting
''Damn Interesting'' is an independent website founded by Alan Bellows in 2005. The website presents true stories from science, history, and psychology, primarily as long-form articles, often illustrated with original artwork. Works are written by various authors, and published at irregular intervals. The website openly rejects advertising, relying on reader and listener donations to cover operating costs. As of October 2012, each article is also published as a podcast under the same name. In November 2019, a second podcast was launched under the title ''Damn Interesting Week'', featuring unscripted commentary on an assortment of news articles featured on the website's "Curated Links" section that week. In mid-2020, a third podcast called ''Damn Interesting Curio Cabinet'' began highlighting the website's periodic short-form articles in the same radioplay format as the original podcast. In July 2009, Damn Interesting published the print book ''Alien Hand Syndrome'' through Workma ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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