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Horace Parnell Tuttle
Horace Parnell Tuttle (March 17, 1837 – August 16, 1923) was an American astronomer, an American Civil War veteran and brother of astronomer Charles Wesley Tuttle (November 1, 1829 – July 17, 1881). Biography Early life H. P. Tuttle was born at Newfield, Maine. His parents were Moses Tuttle and Mary Merrow. In 1845 Mary Merrow died, and four years later Moses Tuttle remarried and moved to Cambridge, Massachusetts. Charles Wesley Tuttle was an amateur astronomer who constructed his own telescope, and on a visit to the Harvard Observatory so impressed William Cranch Bond that by 1850 he was hired as an assistant observer. At Harvard Charles Wesley first proposed the existence of the interior "dusky ring" of Saturn. In 1853 he discovered a comet (C/1853 E1 Secchi), with independent discovery credited to Father Secchi, Rome. The following year Charles Wesley was forced to give up his astronomical career because of failing eyesight. He entered Harvard Law School and became U. S ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Astronomer
An astronomer is a scientist in the field of astronomy who focuses on a specific question or field outside the scope of Earth. Astronomers observe astronomical objects, such as stars, planets, natural satellite, moons, comets and galaxy, galaxies – in either observational astronomy, observational (by analyzing the data) or theoretical astronomy. Examples of topics or fields astronomers study include planetary science, Sun, solar astronomy, the Star formation, origin or stellar evolution, evolution of stars, or the galaxy formation and evolution, formation of galaxies. A related but distinct subject is physical cosmology, which studies the Universe as a whole. Types Astronomers typically fall under either of two main types: observational astronomy, observational and theoretical astronomy, theoretical. Observational astronomers make direct observations of Astronomical object, celestial objects and analyze the data. In contrast, theoretical astronomers create and investigate Con ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Meteor Shower
A meteor shower is a celestial event in which a number of meteors are observed to radiate, or originate, from one point in the night sky. These meteors are caused by streams of cosmic debris called meteoroids entering Earth's atmosphere at extremely high speeds on parallel trajectories. Most meteors are smaller than a grain of sand, so almost all of them disintegrate and never hit the Earth's surface. Very intense or unusual meteor showers are known as meteor outbursts and meteor storms, which produce at least 1,000 meteors an hour, most notably from the Leonids. The Meteor Data Centre lists over 900 suspected meteor showers of which about 100 are well established. Several organizations point to viewing opportunities on the Internet. NASA maintains a daily map of active meteor showers. Historical developments A meteor shower in August 1583 was recorded in the Timbuktu manuscripts.Abraham, Curtis"Stars of the Sahara" ''New Scientist'', issue 2617,15 August 2007, page 39–41 I ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
George Dewey
George Dewey (December 26, 1837January 16, 1917) was Admiral of the Navy, the only person in United States history to have attained that rank. He is best known for his victory at the Battle of Manila Bay during the Spanish–American War, with the loss of only a single crewman on the American side. Dewey was born in Montpelier, Vermont. At age 15, Dewey's father enrolled him at Norwich University in Northfield, Vermont. Two years later Norwich expelled him for drunkenness and herding sheep into the barracks. Summarily, he entered the United States Naval Academy in 1854. He graduated from the academy in 1858 and was assigned as the executive lieutenant of at the beginning of the American Civil War, Civil War. He participated in the capture of New Orleans and the Siege of Port Hudson, helping the Union (American Civil War), Union take control of the Mississippi River. By the end of the war, Dewey reached the rank of Lieutenant commander (United States), lieutenant commander. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Edward Everett
Edward Everett (April 11, 1794 – January 15, 1865) was an American politician, Unitarian pastor, educator, diplomat, and orator from Massachusetts. Everett, as a Whig, served as U.S. representative, U.S. senator, the 15th governor of Massachusetts, minister to Great Britain, and United States secretary of state. He also taught at Harvard University and served as its president. Everett was one of the great American orators of the antebellum and Civil War eras. He was the featured orator at the dedication ceremony of the Gettysburg National Cemetery in 1863, where he spoke for over two hoursimmediately before President Abraham Lincoln delivered his famous two-minute Gettysburg Address. The son of a pastor, Everett was educated at Harvard, and briefly ministered at Boston's Brattle Street Church before taking a teaching job at Harvard. The position included preparatory studies in Europe, so Everett spent two years in studies at the University of Göttingen, and another ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
44th Massachusetts Volunteer Infantry Regiment
The 44th Regiment Massachusetts Volunteer Infantry was a regiment of infantry that served in the Union Army during the American Civil War. Its nucleus was the 4th Battalion Massachusetts Volunteer Militia, known as the "New England Guards". An old state militia unit dating back to the Revolution, the 4th Battalion was called upon to serve garrison duty at Fort Independence shortly after the beginning of the Civil War. After President Abraham Lincoln's August 1862 call for 300,000 men to serve for nine months the 4th Battalion was given permission to recruit to a full regiment and to muster into federal service. The regiment trained at Camp Meigs in Readville, Massachusetts just outside of Boston. They departed Massachusetts on October 24, assigned to Maj. Gen. John G. Foster's Department of North Carolina, later designated as the XVIII Corps. The regiment was stationed in New Bern, North Carolina. They saw their first combat during the Battle of Rawl's Mills, North Carolina in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Morse Code
Morse code is a telecommunications method which Character encoding, encodes Written language, text characters as standardized sequences of two different signal durations, called ''dots'' and ''dashes'', or ''dits'' and ''dahs''. Morse code is named after Samuel Morse, one of the early developers of the system adopted for electrical telegraphy. International Morse code encodes the 26 ISO basic Latin alphabet, basic Latin letters to , one Diacritic, accented Latin letter (), the Arabic numerals, and a small set of punctuation and procedural signals (Prosigns for Morse code, prosigns). There is no distinction between upper and lower case letters. Each Morse code symbol is formed by a sequence of ''dits'' and ''dahs''. The ''dit'' duration can vary for signal clarity and operator skill, but for any one message, once the rhythm is established, a beat (music), half-beat is the basic unit of time measurement in Morse code. The duration of a ''dah'' is three times the duration ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
NGC 2655
NGC 2655 is a lenticular galaxy in the constellation Camelopardalis. It is at a distance of 60 million light years from Earth. NGC 2655 is a Seyfert galaxy. The galaxy has asymmetric dust lanes in the centre of the galaxy, tidal arms and extended neutral hydrogen gas and may have recently experienced a merger. The complex dynamics of the HI and optical tails suggest the galaxy may have undergone more mergers in the past. A weak bar has been detected in infrared H band. The diameter of the disk of the galaxy is estimated to be 60 Kpc (195,000 ly). William Herschel discovered NGC 2655 in September 26, 1802 and described it as very bright and considerably large. The galaxy can be glimpsed with a 4-inch telescope under dark skies nearly 10° from the north celestial pole. One supernova has been observed in NGC 2655, SN 2011B, a type Ia with peak magnitude 12.8. NGC 2655 is the brightest member of the NGC 2655 group, which also contains the Sc galaxy NGC 2715, NGC 2591, and NGC 2748. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
