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John A. Eddy
John Allen "Jack" Eddy (March 25, 1931 – June 10, 2009) was an American astronomer. He studied historical sunspot records, and popularised the name '' Maunder Minimum'' for the sunspot minimum which occurred in the late 17th century. Childhood and education John Eddy was born and raised in Pawnee City, Nebraska. His brother Robert was two years his senior and his sister Lucille was two years his younger. His father managed a cooperative farm store where John worked until he started high school. John's mother had attained college for one year and was a county schoolteacher until she married his father. The Eddy family were of limited economic means and were concerned that they could not afford a college education for John. As it turned out, he was the only member of the family to graduate from college. In 1948, he attended Doane College in Crete, Nebraska for one year, a distance of some from his home. In 1949 he was appointed by Senator Kenneth Wherry of Nebraska, who also re ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pawnee City
Pawnee City is a city and county seat of Pawnee County, Nebraska, United States. The population was 878 at the 2010 census. History Pawnee City was incorporated in 1858, and is named after the Pawnee Native Americans. By the 1880s, Pawnee City was a railroad town at the junction of two railroad lines. Geography Pawnee City is located at (40.110603, −96.153553). According to the United States Census Bureau, the city has a total area of , all land. Demographics 2010 census At the 2010 census there were 878 people, 425 households, and 210 families living in the city. The population density was . There were 518 housing units at an average density of . The racial makeup of the city was 96.9% White, 0.2% African American, 0.3% Native American, 0.2% Asian, 0.3% from other races, and 1.9% from two or more races. Hispanic or Latino of any race were 2.1%. Of the 425 households 19.1% had children under the age of 18 living with them, 39.3% were married couples living together, 7 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Persian Gulf
The Persian Gulf ( fa, خلیج فارس, translit=xalij-e fârs, lit=Gulf of Fars, ), sometimes called the ( ar, اَلْخَلِيْجُ ٱلْعَرَبِيُّ, Al-Khalīj al-ˁArabī), is a mediterranean sea in Western Asia. The body of water is an extension of the Indian Ocean located between Iran and the Arabian Peninsula.United Nations Group of Experts on Geographical NameWorking Paper No. 61, 23rd Session, Vienna, 28 March – 4 April 2006. accessed October 9, 2010 It is connected to the Gulf of Oman in the east by the Strait of Hormuz. The Shatt al-Arab river delta forms the northwest shoreline. The Persian Gulf has many fishing grounds, extensive reefs (mostly rocky, but also coral), and abundant pearl oysters, however its ecology has been damaged by industrialization and oil spills. The Persian Gulf is in the Persian Gulf Basin, which is of Cenozoic origin and related to the subduction of the Arabian Plate under the Zagros Mountains. The current floo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Korean War
{{Infobox military conflict , conflict = Korean War , partof = the Cold War and the Korean conflict , image = Korean War Montage 2.png , image_size = 300px , caption = Clockwise from top:{{Flatlist, * A column of the U.S. 1st Marine Division's infantry and armor moves through Chinese lines during their breakout from the Chosin Reservoir * UN landing at Incheon harbor, starting point of the Battle of Incheon * Korean refugees in front of a U.S. M46 Patton tank * U.S. Marines, led by First Lieutenant Baldomero Lopez, landing at Incheon * F-86 Sabre fighter aircraft , date = {{Ubl, 25 June 1950 – 27 July 1953 (''de facto'')({{Age in years, months, weeks and days, month1=6, day1=25, year1=1950, month2=7, day2=27, year2=1953), 25 June 1950 – present (''de jure'')({{Age in years, months, weeks and days, month1=6, day1=25, year1=1950) , place = Korean Peninsula, Yellow Sea, Sea of Japan, K ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aircraft Carrier
An aircraft carrier is a warship that serves as a seagoing airbase, equipped with a full-length flight deck and facilities for carrying, arming, deploying, and recovering aircraft. Typically, it is the capital ship of a fleet, as it allows a naval force to project air power worldwide without depending on local bases for staging aircraft operations. Carriers have evolved since their inception in the early twentieth century from wooden vessels used to deploy balloons to nuclear-powered warships that carry numerous fighters, strike aircraft, helicopters, and other types of aircraft. While heavier aircraft such as fixed-wing gunships and bombers have been launched from aircraft carriers, these aircraft have not successfully landed on a carrier. By its diplomatic and tactical power, its mobility, its autonomy and the variety of its means, the aircraft carrier is often the centerpiece of modern combat fleets. Tactically or even strategically, it replaced the battleship in th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Line Officer
In the United States Armed Forces, a line officer or officer of the line is a U.S. Navy or U.S. Marine Corps commissioned officer or warrant officer who exercises general command authority and is eligible for operational command positions, as opposed to officers who normally exercise command authority only within a Navy Staff Corps. The term ''line officer'' is also used by the U.S. Air Force and U.S. Coast Guard to indicate that an officer is eligible for command of operational, viz., tactical or combat units. The term is not generally used by officers of the U.S. Army – the roughly corresponding Army terms are basic branch (e.g, Infantry) and special branch (e.g., Medical Corps) qualified officers, although the concepts are not entirely synonymous, as some Army special branch officers (e.g., Judge Advocate General's Corps) are eligible to hold command outside their branch specialty. Officers who are not line officers are those whose primary duties are generally in non- ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
United States Naval Academy
The United States Naval Academy (US Naval Academy, USNA, or Navy) is a United States Service academies, federal service academy in Annapolis, Maryland. It was established on 10 October 1845 during the tenure of George Bancroft as Secretary of the Navy. The Naval Academy is the second oldest of the five United States service academies, U.S. service academies and it educates midshipmen for service in the officer corps of the United States Navy and United States Marine Corps. The campus is located on the former grounds of Fort Severn at the confluence of the Severn River (Maryland), Severn River and Chesapeake Bay in Anne Arundel County, Maryland, Anne Arundel County, east of Washington, D.C., and southeast of Baltimore. The entire campus, known colloquially as the Yard, is a National Historic Landmark and home to many historic sites, buildings, and monuments. It replaced Philadelphia Naval Asylum, in Philadelphia, that had served as the first United States Naval Academy from 1 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Draco (constellation)
Draco is a constellation in the far northern sky. Its name is Latin for dragon. It was one of the 48 constellations listed by the 2nd century astronomer Ptolemy, and remains one of the 88 modern constellations today. The north pole of the ecliptic is in Draco. Draco is circumpolar from northern latitudes. There it is never setting and therefore can be seen all year. Features Stars Thuban (α Draconis) was the northern pole star from 3942 BC, when it moved farther north than Theta Boötis, until 1793 BC. The Egyptian Pyramids were designed to have one side facing north, with an entrance passage geometrically aligned so that Thuban would be visible at night. Due to the effects of precession, it would again be the pole star around the year AD 21000. It is a blue-white giant star of magnitude 3.7, 309 light-years from Earth. The traditional name of Alpha Draconis, Thuban, means "head of the serpent". There are three stars under magnitude 3 in Draco. The brighter of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bancroft Hall
Bancroft Hall, at the United States Naval Academy in Annapolis, Maryland, is said to be the largest contiguous set of academic dormitories in the U.S. Bancroft Hall, named after former U.S. Secretary of the Navy, and famous historian/author George Bancroft, is home for the entire brigade of 4,000 midshipmen, and contains some 1,700 rooms, of corridors, and of floor space. All the basic facilities that midshipmen need for daily living are found in the hall. It is referred to as "Mother B" or "The Hall" by Midshipmen. History Bancroft Hall was designed in the Beaux-Arts style with its mansard roof and dormer windows by architect Ernest Flagg and its central rotunda and first two wings were built in 1901–06. Over the intervening years it has been expanded to encompass eight wings of five stories ("decks") each numbered 0–4. The original two wings (1906) are now the 3rd and 4th wings; the next pair, added in 1917, are now the 1st and 2nd wings; a pair added in 1939 became t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Taps (bugle Call)
"Taps" is a bugle call that is sounded as a signal for “lights out” at the end of a military day, and during patriotic memorial ceremonies and military funerals conducted by the United States Armed Forces. The official military version is played by a single bugle or trumpet, although other versions of the tune may be played in other contexts (e.g., the U.S. Marine Corps Ceremonial Music site has recordings of two bugle versions and one band version). It is also performed often at Girl Guide, Girl Scout, and Boy Scout meetings and camps. The tune is also sometimes known as "Butterfields Lullaby", or by the first line of the lyric, "Day Is Done". The duration may vary to some extent. Etymology "Taps" is derived from the same source as "Tattoo". "Taps" is sometimes said to originate from the Dutch '' taptoe'', meaning "close the (beer) taps (and send the troops back to camp)". An alternative explanation, however, is that it carried over from a term already in use before ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Celestial Navigation
Celestial navigation, also known as astronavigation, is the practice of position fixing using stars and other celestial bodies that enables a navigator to accurately determine their actual current physical position in space (or on the surface of the Earth) without having to rely solely on estimated positional calculations, commonly known as " dead reckoning", made in the absence of satellite navigation or other similar modern electronic or digital positioning means. Celestial navigation uses "sights", or timed angular measurements, taken typically between a celestial body (e.g. the Sun, the Moon, a planet, or a star) and the visible horizon. Celestial navigation can also take advantage of measurements between celestial bodies without reference to the Earth horizon, such as when the Moon and other selected bodies are used in the practice called "lunars" or lunar distance method, used for determining precise time when time is unknown. Celestial navigation by taking sights ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Annapolis
Annapolis ( ) is the capital city of the U.S. state of Maryland and the county seat of, and only incorporated city in, Anne Arundel County. Situated on the Chesapeake Bay at the mouth of the Severn River, south of Baltimore and about east of Washington, D.C., Annapolis forms part of the Baltimore–Washington metropolitan area. The 2020 census recorded its population as 40,812, an increase of 6.3% since 2010. This city served as the seat of the Confederation Congress, formerly the Second Continental Congress, and temporary national capital of the United States in 1783–1784. At that time, General George Washington came before the body convened in the new Maryland State House and resigned his commission as commander of the Continental Army. A month later, the Congress ratified the Treaty of Paris of 1783, ending the American Revolutionary War, with Great Britain recognizing the independence of the United States. The city and state capitol was also the site of the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
