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English Wikipedia references for Navy.mil 1-50 of 14255
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| International Atomic Time International Atomic Time ( TAI, from the French name Temps Atomique International) is a high-precision atomic coordinate time standard based on the notional passage of proper time on Earth's geoid. It is the principal realisation of Terrestrial Time, and the basis for Coordinated Universal Time (UTC) which is used for civil timekeeping all over the Earth's surface. , TAI was exactly 34 seconds ahead of UTCleap seconds in UTC since 1972 (the last leap second was added on December 31, 2008). International_Atomic_Time | |
| Asteroid Asteroids, sometimes called minor planets or planetoids, are small Solar System bodies in orbit around the Sun, especially in the inner Solar System; they are smaller than planets but larger than meteoroids. The term "asteroid" has historically been applied primarily to bodies in the inner Solar System since the outer Solar System was poorly known when it came into common usage. The distinction between asteroids and comets is made on visual appearancecoma while asteroids do not. Asteroid | |
| Astrometry Astrometry is the branch of astronomy that relates to precise measurements and explanations of the positions and movements of stars and other celestial bodies. Although once thought of as an esoteric field with little useful application for the future, the information obtained by astrometric measurements is now very important in contemporary research into the kinematics and physical origin of our Solar System and our Galaxy, the Milky Way. Astrometry | |
| Astronomical unit An astronomical unit (abbreviated as AU, au, a.u., or sometimes ua) is a unit of length roughly equal to the mean distance between the Earth and the Sun. It is approximately 150 million kilometres (93 million miles). The symbol ua is recommended by the International Bureau of Weights and Measures, but au is more common in Anglosphere countries. Astronomical_unit | |
| Algol Algol | |
| Anti-ballistic missile anti-ballistic missile (ABM) is a missile designed to counter ballistic missiles (a missile for missile defense). A ballistic missile is used to deliver nuclear, chemical, biological or conventional warheads in a ballistic flight trajectory. The term "anti-ballistic missile" describes any antimissile system designed to counter ballistic missiles. However the term is more commonly used for ABM systems designed to counter long range, nuclear-armed Intercontinental ballistic missiles (ICBMs). Anti-ballistic_missile | |
| Alpha Centauri Alpha_Centauri | |
| Aircraft carrier An aircraft carrier is a warship designed with a primary mission of deploying and recovering aircraft, acting as a seagoing airbase. Aircraft carriers thus allow a naval force to project air power great distances without having to depend on local bases for staging aircraft operations. They have evolved from wooden vessels, used to deploy balloons, into nuclear powered warships that carry dozens of fixed and rotary wing aircraft. Aircraft_carrier | |
| Atomic clock atomic clock is a type of clock that uses an atomic resonance frequency standard as its timekeeping element. They are the most accurate time and frequency standards known, and are used as primary standards for international time distribution services, and to control the frequency of television broadcasts and GPS satellite signals. Atomic_clock | |
| Abdul Rashid Dostum Abdul Rashid Dostum (also known as Heavy D, D-Diddy) (born 1954) is a former pro-Soviet fighter during the Soviet war in Afghanistan and is considered by many to be the leader of Afghanistan's Uzbek community. He joined the Afghan military in 1978, fighting with the Soviets and against the mujahideen throughout the 1980s before switching sides and joining the mujahideen. Abdul_Rashid_Dostum | |
| Altair Altair | |
| AIM-54 Phoenix The AIM-54 Phoenix is a radar-guided, long-range air-to-air missile, carried in clusters of up to six missiles — formerly on the U.S. Navy's and currently on the Islamic Republic of Iran Air Force's F-14 Tomcat interceptors/multi-role fightersThe AIM-54 was originally developed in the early 1960s for the canceled F-111B naval variant, and based on the Eagle project for the canceled F6D Missileer. AIM-54_Phoenix | |
| Battleship A battleship is a large, heavily armored warship with a main battery consisting of the largest calibre of guns. Battleships were larger, better armed, and better armored than cruisers and destroyers. Battleship | |
| Bioterrorism Bioterrorism is terrorism by intentional release or dissemination of biological agents (bacteria, viruses, or toxins); these may be in a naturally-occurring or in a human-modified form. Bioterrorism | |
| Blue Blue is a colour, the perception of which is evoked by light having a spectrum dominated by energy with a wavelength of roughly 440–490 nm. It is considered one of the additive primary colours. On the HSV Colour Wheel, the complement of blue is yellow; that is, a colour corresponding to an equal mixture of red and green light. Blue | |
| Bermuda Triangle The Bermuda Triangle, also known as the Devil's Triangle, is a region in the western part of the North Atlantic Ocean in which a number of aircraft and surface vessels are alleged to have disappeared in mysterious circumstances which fall beyond the boundaries of human error, piracy, equipment failure, or natural disasters. Popular culture has attributed some of these disappearances to the paranormal, a suspension of the laws of physics, or activity by extraterrestrial beings. Bermuda_Triangle | |
| Blue Angels For the 1960 syndicated television series, see The Blue Angels (TV series)The United States Navy's Navy Flight Demonstration Squadron, popularly known as the Blue Angels, first performed in 1946 and is currently the oldest flying aerobatic team. The squadron's six demonstration pilots fly the Boeing F/A-18 Hornet in more than 70 shows at 34 locations throughout the United States each year, where they still employ many of the same practices and techniques used in their aerial displays in 1946. Blue_Angels | |
| Bathyscaphe Trieste Bathyscaphe_Trieste | |
| Conversion of units Conversion of units refers to conversion factors between different units of measurement for the same quantity. Conversion_of_units | |
| CSS Virginia CSS_Virginia | |
| Crystal crystal or crystalline solid is a solid material whose constituent atoms, molecules, or ions are arranged in an orderly repeating pattern extending in all three spatial dimensions. The scientific study of crystals and crystal formation is crystallography. The process of crystal formation via mechanisms of crystal growth is called crystallization or solidification.The word crystal is derived from the ancient Greek word κρύσταλλος (krustallos), which had the same meaning, but according to the ancient understanding of crystal. Crystal | |
| Common Era Common Era, abbreviated as CE, is a designation for the calendar system most commonly used world-wide for numbering the year part of the date. The numbering of years using Common Era notation is identical to the numbering used with Anno Domini (BC/AD) notation, being the current year in both notations and neither using a year zero. Common_Era | |
| Columbia University Columbia_University | |
| Congressional Medal of Honor Talk:Congressional_Medal_of_Honor | |
| Cruise missile cruise missile is a guided missile that carries an explosive payload and uses a lifting wing and a propulsion system, usually a jet engine, to allow sustained flight; it is essentially a flying bomb. Cruise missiles are generally designed to carry a large conventional or nuclear warhead many hundreds of miles with high accuracy. Cruise_missile | |
| Cuban Missile Crisis Cuban Missile Crisis was a confrontation between the United States, the Soviet Union, and Cuba in October 1962, during the Cold War. In Russia, it is termed the "Caribbean Crisis" (, Karibskiy krizis), while in Cuba it is called the "October Crisis." The Cuban and Soviet governments decided in September 1962 to place nuclear missiles on Cuba in order to protect it from United States harassment. Cuban_Missile_Crisis | |
| Cruiser cruiser is a large type of warship, which had its prime period from the late 19th century to the end of the Cold War. The first cruisers were intended for individual raiding and protection missions on the seas. Over the years, the nature and role of the cruiser has changed considerably, and today the cruiser has largely been replaced by destroyers in its roles.Historically a cruiser was not a type of ship but a warship role. Cruiser | |
| Cannon A cannon is any tubular piece of artillery that uses gunpowder or other usually explosive-based propellants to launch a projectile over a distance. Cannon vary in caliber, range, mobility, rate of fire, angle of fire, and firepower; different forms of cannon combine and balance these attributes in varying degrees, depending on their intended use on the battlefield. Cannon | |
| Color temperature Color temperature is a characteristic of visible light that has important applications in lighting, photography, videography, publishing, and other fields. The color temperature of a light source is determined by comparing its chromaticity with that of an ideal black-body radiator. Color_temperature | |
| Colonialism See colony and colonization for examples of colonialism which do not refer to Western colonialism. Also see Colonization (disambiguation) Colonialism | |
| Foreign policy of the United States The foreign policy of the United States is the policy by which the United States interacts with foreign nations. United States foreign policy is highly influential on the world stage, as it is the only remaining superpower. The global reach of the United States is backed by a 13 trillion dollar economy, the largest in the world of all countries formally recognized by the United States for which data is available is here; the military expenditures for said countries is available here; and the political details are available on the main United States page here here. Foreign_policy_of_the_United_States | |
| C-130 Hercules C-130_Hercules | |
| Carrier battle group carrier battle group (CVBG) consists of an aircraft carrier (CV) and its escorts. Carrier_battle_group | |
| CH-46 Sea Knight CH-46_Sea_Knight | |
| Chief of Naval Operations The Chief of Naval Operations (CNO) is the highest ranking officer in the United States Navy and is a member of the Joint Chiefs of Staff. The CNO reports directly to the Secretary of the Navy for the command, utilization of resources and operating efficiency of the operating forces of the Navy and of the Navy shore activities assigned by the Secretary. Chief_of_Naval_Operations | |
| Challenger Deep Challenger Deep is the deepest surveyed point in the oceans, with a depth of approximately . The error of measurement is less than a hundred metres. It is located in the Mariana Islands group at the southern end of the Mariana Trench. The closest land is Fais Island (one of the outer islands of Yap), southwest, and Guam, to the northeast. The point is named after the British Royal Navy survey ship HMS Challenger of 1872–76. Challenger_Deep | |
| Crystallography Crystallography is the experimental science of determining the arrangement of atoms in solids. In older usage, it is the scientific study of crystals. The word "crystallography" is derived from the Greek words crystallon = cold drop / frozen drop, with its meaning extending to all solids with some degree of transparency, and graphein = write.Before the development of X-ray diffraction crystallography (see below), the study of crystals was based on the geometry of the crystals. Crystallography | |
| Cavitation Cavitation is the formation of vapour bubbles of a flowing liquid in a region where the pressure of the liquid falls below its vapor pressure. Cavitation is usually divided into two classes of behaviorshock wave. Such cavitation often occurs in pumps, propellers, impellers, and in the vascular tissues of plants. Noninertial cavitation is the process in which a bubble in a fluid is forced to oscillate in size or shape due to some fo Cavitation | |
| Day A day (symbol d) is a unit of time equivalent to approximately 24 hours. It is not an SI unit but it is accepted for use with SI. The SI unit of time is the second. Day | |
| Dartmouth College Dartmouth_College | |
| Diego Garcia Diego Garcia is an island considered the largest atoll, in terms of land area, of the Chagos Archipelago, and is part of the British Indian Ocean Territories. The island is located in the Indian Ocean, about 1,600India. Other countries in the vicinity of Diego Garcia include Sri Lanka and Maldives.In the 1960s, the Chagos archipelago was secretly leased to the United Kingdom and detached from Mauritius with the intention of expelling its entire population and establishing a military base. Diego_Garcia | |
| ΔT ΔT, Delta T, delta-T, deltaT, or DT is the time difference obtained by subtracting Universal Time from Terrestrial Time.Universal Time (UT) is a time scale based on the Earth's rotation, which is somewhat irregular over short periods (days up to a century), thus any time based on it cannot have an accuracy better than 1 8. ΔT | |
| Earth Earth | |
| Ecliptic The ecliptic is the apparent path that the Sun traces out in the sky during the year. As it appears to move in the sky in relation to the stars, the apparent path aligns with the planets throughout the course of the year. More accurately, it is the intersection of a spherical surface, the celestial sphere, with the ecliptic plane, which is Ecliptic | |
| Easter Easter (, Pascha) is the most important annual religious feast in the Christian liturgical year. According to Christian scripture, Jesus was resurrected from the dead on the third day from his crucifixion. Christians celebrate this resurrection on Easter Day or Easter Sunday (also Resurrection Day or Resurrection Sunday), two days after Good Friday and three days after Maundy Thursday. Easter | |
| Equinox An equinox occurs twice a year, when the tilt of the Earth's axis is inclined neither away from nor towards the Sun, the Sun being vertically above a point on the Equator. The term equinox can also be used in a broader sense, meaning the date when such a passage happens. aequus (equal) and nox (night), because around the equinox, the night and day are approximately equally long. It may be better understood to mean that latitudes +L and -L north and south of the equator experience nights of equal length. Equinox | |
| Euphonium The euphonium is a conical-bore, tenor-voiced brass instrument. It derives its name from the Greek word euphonos, meaning "well-sounding" or "sweet-voiced" (eu means "well" or "good" and phonium means "voice"). The euphonium is a valved instrument; nearly all current models are piston valved, though rotary valved models do exist. Euphonium | |
| Northrop F-5 Northrop_F-5 | |
| Field-effect transistor The field-effect transistor (FET) is a type of transistor that relies on an electric field to control the shape and hence the conductivity of a channel of one type of charge carrier in a semiconductor material. FETs are sometimes called unipolar transistors to contrast their single-carrier-type operation with the dual-carrier-type operation of bipolar (junction) transistors (BJT). Field-effect_transistor | |
| French Republican Calendar Talk:French_Republican_Calendar |
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