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1. Infrared astronomy
   Infrared astronomy Infrared astronomy is the branch of astronomy and astrophysics which deals with objects visible in infrared (IR) radiation. Visible radiation ranges from 400nm (blue) to 700nm (red). Longer wavelengths than 700nm but still shorter than microwaves are called infrared. Discovery After the use of prisms by Isaac Newton to split
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2. History of astronomy
   History of astronomy Astronomy is probably the eldest natural science, dating back to antiquity. Early astronomy involved observing (and predicting...see scientific method) the motions of visible celestial objects (mostly stars and planets). An example of this early astronomy might involve a study of the relationships between the "apparent height" of the noon
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3. High-energy astronomy
   High-energy astronomy High energy astronomy is the study of astronomical objects at wavelengths associated with high energies. It includes X-ray astronomy, gamma-ray astronomy, and extreme UV astronomy, as well as studies of neutrinos and cosmic rays. Astronomical objects commonly studied at high energies may include black holes, neutron stars, active galactic nuclei, supernova
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4. Galactic astronomy
   Galactic astronomy Galactic astronomy is the study of galaxies, their development, structure, components, dynamics, interactions, and the range of forms they take. Our own local Milky Way galaxy is in some ways the best studied, although important parts of it are obscured from view in visible wavelengths by regions of galactic dust.
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5. Gamma-ray astronomy
   Gamma-ray astronomy Gamma-ray astronomy is the astronomical study of gamma rays. Long before experiments could detect gamma rays emitted by cosmic sources, scientists had known that the universe should be producing these photons. Work by Feenberg and Primakoff in 1948, Hayakawa and Hutchinson in 1952, and, especially, Morrison in 1958 had led scientists
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6. Guinness book of Astronomy
   Guinness book of Astronomy The Guinness book of Astronomy is a book by Patrick Moore, a British astronomer. The first part of the book is written like a Guinness Book of Records, with paragraphs like "the most luminous star", "the farthest star", and so on. Solar system objects are explained in detail. The
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7. Far infrared astronomy
   Far infrared astronomy Far infrared astronomy is the branch of astronomy and astrophysics which deals with objects visible in far-infrared radiation (approximatively from 30μm to 300μm). In the far-infrared, no star can be seen, but we can see very cold matter (140 Kelvin or less). Huge, cold clouds of gas and dust in
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8. Epoch (astronomy)
   Epoch (astronomy) In astronomy, an epoch is a moment in time for which celestial coordinates or orbital elements are specified. In the case of celestial coordinates, the position at other times can be computed by taking into account precession and proper motion. In the case of orbital elements, it is necessary to
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9. Extragalactic astronomy
   Extragalactic astronomy Extragalactic Astronomy is the branch of astronomy concerned with objects outside of our own Milky Way Galaxy. As instrumentation has improved, mo 2000 re distant objects can now be examined in detail. It is therefore often useful to sub-divide this branch into Near-Extragalactic Astronomy and Far-Extragalactic Astronomy. The former deals with objects,
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10. Karl Schwarzschild
    a post at the Astrophysical Observatory in Potsdam in 1909. At the outbreak of war in 1914 he joined the German army serving on both the western and eastern fronts, rising to the rank of lieutenant in the artillery. While serving in Russia in 1915, he wrote two main papers, one on relativity theory and one on quantum theory. His work on relativity produced the first exact solutions to the general gravitational equations - one for non-rotating spherically symmetric bodies and one for static isotropic empty space surrounding any massive body. From the second he undertook some pioneering work on classical
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11. Karl Guthe Jansky
    Karl Guthe Jansky Karl Guthe Jansky (October 22 1905 - February 14 1950), was the American physicist and radio engineer who in 1932 discovered that the Milky Way galaxy emanates radio waves; he did not follow up his discovery, but it marked the birth of radio astronomy. Jansky was born in Norman, Oklahoma, and studied at the University of Wisconsin where he received his Bachelor of Science degree in Physics in 1927. In 1928 he joined the Bell Telephone Laboratories in Holmdel, New Jersey. Bell Labs
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12. Vedas
    showTocToggle("show","hide") 1 Origins of the Vedas 2 External Links 3 References Origins of the Vedas Many Hindus believe that the Vedas were transmitted, via an oral tradition, for perhaps 8000 years (Fisher) . Some Western commentators see this as an exaggeration. Hymns which were particularly chanted during religious and social functions of the community were compiled by Vaishampayana under the title Yajus mantra Samhita. (Yajurveda). Jaimini is said to have collected hymns that were set to music and melody — 'Saman'. (Samaveda). The fourth collection of hymns and chants known as Atharva Samhita (Atharvaveda) is ascribed to Sumantu. The Vedas are
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13. Kepler's laws of planetary motion
    Kepler's laws of planetary motion Johannes Kepler's primary contribution to astronomy/astrophysics were the three laws of planetary motion. Kepler derived these laws, in part, by studying the observations of Brahe. Isaac Newton would later verify these laws with his laws of motion and universal gravity. The generic term for an orbiting object is "satellite". Table of contents showTocToggle("show","hide") 1
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14. Kitt Peak National Observatory
    Kitt Peak National Observatory Kitt Peak National Observatory, usually referred to as KPNO, is an astronomical observatory on a 6,875 ft peak of the Quinlan Mountains in the Arizona-Sonoran Desert on the Tohono O'odham Nation, 55 miles southwest of Tucson, Arizona. It is part of the National Optical Astronomy Observatory (NOAO). Kitt Peak was selected in 1958 as the site for a national observatory under contract with the National Science Foundation (NSF) and was administered by the Association of Universities for Research in
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15. Vernal equinox
    Vernal equinox In astronomy, the vernal equinox (spring equinox, march equinox, or northward equinox) is the equinox at the beginning of spring in the northern hemisphere: the moment when the sun appears to cross the celestial equator, heading northward. The equinox occurs around March 20-22, varying slightly each year according to the 400
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16. J. Eric S. Thompson
    last generation of "generalist" archeologists in the field, engaging in activities from finding and mapping new sites, excavation, study of Maya ceramics, art and iconography, hieroglyphics, some ethnology on the side, and writing books for both technical and lay audiences. Thompson conducted a number of excavations at sites in British Honduras. He was one of the first in the field to investigate and excavate smaller sites and areas away from the elite ceremonial centers, to learn more about the lives of common Maya people. Expanding on the earlier work of John T. Goodman and Juan H. Martinez-Hernandez, (largely neglected by other
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17. January 8
    of the universe is increasing. 2000 - The 4th and final day of the 2000 Al Qaeda Summit 2004 - Queen Elizabeth names the Queen Mary II cruise liner. Births 1786 - Nicholas Biddle, President of the Second Bank of the United States († 1844) 1821 - James Longstreet, Confederate General († 1904) 1823 - Alfred Russel Wallace, naturalist and biologist († 1913) 1824 - Wilkie Collins, novelist († 1889) 1867 - Emily Greene Balch, winner of the Nobel Peace Prize 1946 († 1961) 1870 - Miguel Primo de Rivera, dictator of Spain († 1930) 1891 - Walther Bothe, physicist, winner
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18. James Clerk Maxwell
    his degree, he read to the Cambridge Philosophical Society a novel memoir, “On the Transformation of Surfaces by Bending.” This is one of the few purely mathematical papers he published, and it exhibited at once to experts the full genius of its author. About the same time appeared his elaborate memoir, “On Faraday’s Lines of Force,” in which he gave the first indication of some of those extraordinary electrical investigations which culminated in the greatest work of his life. From 1855 to 1872, he published at intervals a series of valuable investigations connected with the “Perception of Colour” and “Colour-Blindness,” for
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19. James Nasmyth
    a heavy blow while a large object, which required a much heavier blow, received only a light one, sketched out his idea for the first steam hammer. At the last minute the ship constructors decided to abandon the paddles in favour of the new screw-propulsion and so, for a time, there was no need for the new steam-hammer. In April 1840, Nasmyth visited France with a view to supplying the French arsenals and dockyards with tools and while he was there took the opportunity to visit the Creuzot Works. On going round the works, he found his own steam-hammer at work.
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20. James Bradley
    1711, and took degrees of B.A. and M.A. in 1714 and 1717 respectively. His early observations were made at the rectory of Wanstead in Essex, under the tutelage of his uncle, the Rev. James Pound (himself a skilled astronomer) and was elected a fellow of the Royal Society on November 6 1718. He took orders on becoming vicar of Bridstow in the following year, and a small sinecure living in Wales was also procured for him by his friend Samuel Molyneux. He resigned his ecclesiastical preferments in 1721, when appointed to the Savilian chair of astronomy at Oxford, while as reader
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