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[View \| Download]	THE PLEIADES - Astronomy By Pirataraul Las Pléyades (que significa "palomas" en griego), también conocidas como Objeto Messier 45, Messier 45, M45, Las Siete Hermanas o Cabrillas, es un objeto visible a simple vista en el cielo nocturno con un prominente lugar en la mitología antigua, situado a un costado de la constelación Tauro. Las Pléyades son un puñado de estrellas muy jóvenes las cuales se sitúan a una distancia aproximada de 450 años luz de la Tierra y están contenidas en un espacio de treinta años luz. Se formaron aproximadamente hace apenas unos 100 millones de años, durante la era Mesozoica en la Tierra, a partir del colapso de una nube de gas interestelar. Las estrellas más grandes y brillantes del cúmulo son de color blanco-azulado y cerca de cinco veces más grandes que el Sol. La distancia al cúmulo ha sido estimada por muchos métodos, pues es un paso importante en la calibración de las distancias en el universo. El conocimiento exacto de la distancia de las Pléyades le permite a los astrónomos trazar un diagrama de Hertzsprung-Russell, para estimar la distancia a otros cúmulos desconocidos. Otros métodos pueden entonces extender la escala de distancia, de cúmulos abiertos a galaxias y posteriormente a cúmulos de galaxias, permitiendo construir una escala cósmica de distancias. Los resultados anteriores al lanzamiento del satélite Hipparcos encontraron que las Pléyades estaban aproximadamente a unos 135 parsec (440 años luz) de la Tierra. Hipparcos causó consternación entre los astrónomos al encontrar una distancia de solamente 118 parsec (384,7 años luz) midiendo el paralaje de algunas estrellas del cúmulo, una técnica que debe de indicar los resultados más directos y exactos. Trabajos más recientes han encontrado que la distancia calculada por Hipparcos era errónea, si bien se desconoce la causa de este error. La distancia específica de las Pléyades todavía se desconoce, pero actualmente se piensa que la verdadera distancia es mayor que 135 parsec. El cúmulo tiene unos 12 años luz de diámetro y contiene un total aproximadamente 500 estrellas. Está dominada por estrellas azules jóvenes, de las cuales 8 pueden ser observadas a simple vista dependiendo de las condiciones atmosféricas (cielos muy limpios y ausencia de Luna): Taygeta, Pleione, Merope, Maia, Electra, Celaeno, Atlas y Alcyone El orden de sus estrellas más brillantes es parecido al de la Osa Mayor y Osa Menor, con una masa total estimada en unas 800 masas solares. El cúmulo está compuesto en una buena parte por enanas marrones —objetos con menos del 8% de la masa solar, los cuales son demasiado livianos para ser estrellas. Puede que estos objetos constituyan aproximadamente el 25% de la población total del cúmulo, a pesar de que sólo contribuyan al 2% su masa total. También, presentes en el cúmulo están las enanas blancas, las cuales contradicen la posible edad del cúmulo. Debido a la corta edad del cúmulos, no se espera que las estrellas normales puedan haber evolucionado para convertirse en enanas blancas. Se cree que en vez de ser estrellas individuales de poca o mediana masa, los progenitores de estas estrellas eran masivas y orbitaban en sistemas binarios. Durante su rápida evolución, la transferencia de masa de la estrella más masiva a su acompañante, pudo haber acelerado su evolución hacia una enana blanca. Tags: astronomia, astronomy, m45, messier, pleiades, pleyades 1 Downloads - Last from: http://downthisvideo.com/ (Your Blog here!)
[View \| Download]	Rising Milky Way and Lighting, Australia By theamazingsky A time-lapse of the Milky Way rising, with lightning in the distance over the Gold Coast of Queensland, Australia. Taken JUne 24, 2006. © 2006 Alan Dyer Tags: astronomy, motion, night, sky 1 Downloads - Last from: http://downthisvideo.com/ (Your Blog here!)
[View \| Download]	Re-aluminizing the Palomar 200" mirror By palomarskyguy Time-lapse movie of re-aluminizing the 14.5 ton 200-inch mirror at Palomar Observatory. Tags: astronomy, observatory, palomar, space 1 Downloads - Last from: http://downthisvideo.com/ (Your Blog here!)
[View \| Download]	Foucault test movie By jeromevleggaar Foucault test movie of a 255mm (10 inch) f/3.8 parabolic mirror with knife edge steps (and moving light source) of 0.2mm over a range of approx 4 mm. Tags: astronomy, atm, foucault, grinding, images, making, mirror, parabolic, polishing, test, webcam 1 Downloads - Last from: http://downthisvideo.com/ (Your Blog here!)
[View \| Download]	Sirius Stargazing: The Pleiades (M45) By SiriusStargazing In this episode, we look at the Pleiades Open Cluster in Taurus, one of the closest clusters and certainly the clearest in the night sky. I would like to thank Dr. Phil Plait, the Bad Astronomer, for his appearance in this episode. You can and should be reading his excellent blog at: • http://blogs.discovermagazine.com/bad... Please subscribe to be notified about new episodes. You can also follow me on twitter at: • http://www.twitter.com/SiriusStargazer If you're sirius about stargazing, please check out the following organisations. Royal Astronomical Society: • http://www.ras.org.uk/ British Astronomical Association: • http://britastro.org/baa Campaign for Dark Skies: • http://www.britastro.org/dark-skies/ Clear skies! Tags: ..., 10x50, 45, astronomy, binoculars, cluster, m45, messier, night, open, planisphere, pleiades, ras, seven, sirius, siriusstargazing, sisters, sky, stargazing 1 Downloads - Last from: http://downthisvideo.com/ (Your Blog here!)
[View \| Download]	Telescopio de Galileo casero By carlosz22 Como hacer un telescopio como el de Galileo a partir de tubos de PVC y lentes fáciles de encontrar. Las lentes que hemos utilizado en el vídeo son lentes dedicadas para telescopios pero pueden usarse una combinación de lentes de gafas para miopes e hipermétropes. Si necesitáis más información podéis contactar conmigo por Youtube o en mi web. http://web.mac.com/carlosz22 Tags: asaaf, astro, astrohenares, astronomia, astronomy, astronomía, año, galilean, galilei, galileo, henares, i..., internacional, telescope, telescopio, telescopios 1 Downloads - Last from: http://downthisvideo.com/ (Your Blog here!)
[View \| Download]	2000 BBC Horizon Planet Hunters part 3 of 5 By HMMcHarp This differs from the 1996 episode of the same name. pulsar planets, Tau Bootes, Gliese and Pegasi 51 playlist link http://www.youtube.com/view... Tags: astro..., astronomy, astrophysics, bbc, bootes, butler, exploration, gliese, horizon, marcy, pegasi, red, shift, space, spectroscopy, star, steller, tau, wobble 1 Downloads - Last from: http://downthisvideo.com/ (Your Blog here!)
[View \| Download]	Apocalypse - 2012 (By Shadowz3n) By Shadowz3n The video is able to speak that is going to fall a meteor in the Earth but is not that that I am speaking.. read before \/ \/ \/ \/ \/ \/ \/ \/ \/ \/ \/ \/ \/ \/ \/ \/ \/. 1 - Evanescence - Farther Away 2 - Evanescence - Taking Over Me To each 26,000 years the Sun passes in the center of our galaxia.. and that already happened before.. but in the center of each galaxia has a black hole.. i dont know but already it was verified the 2 things.. the black hole.. and the Sun... And the meteor wrong Earth.. Tags: 2012, apocalypse, astronomy, away, choque, comet, cometa, crash, end, evanescence, farther, l..., me, meteor, meteoro, nostradamus, of, over, taking, the, world 1 Downloads - Last from: http://downthisvideo.com/ (Your Blog here!)
[View \| Download]	Infrared: More Than Your Eyes Can See By SpitzerJim Dr. Michelle Thaller explains infrared light in this older video, produced by NASA's Spitzer Space Telescope (then known as the Space Infrared Telescope Facility) before it launched. Tags: animals, astronomy, electromagnetism, em, infrared, light, nasa, physical, science, space, spectrum, zoo 1 Downloads - Last from: http://downthisvideo.com/ (Your Blog here!)
[View \| Download]	Biggest Full Moon HD Video: Canon 5D Mark 2 II HD Dec 2008 By MikeTheTeacher Canon 5D Mark 2 II attached to a tripod mounted Celestron C6-A telescope. WATCH IN HD, or else it's compressed and blurred. Taken on 12 December 2008 by Mike Black. Tags: art, astronomy, biggest, canon, canon5d, canon5dmarkii, def, defintion, full, high, ii, luna, lunar, mark, moon, night, science, space, techno..., travel, video 1 Downloads - Last from: http://downthisvideo.com/ (Your Blog here!)
[View \| Download]	Origins - Earth Is Born - Part 3 By arey051012 PBS's NOVA series presents "Origins - Fourteen Billion Years of Cosmic Evolution." Hosted by author Neil deGrasse Tyson. Earth Is Born - Introduction: http://www.youtube.com/watch?v=Up56ls... Earth Is Born - Part 1: http://www.youtube.com/watch?v=8brEo1... Earth Is Born - Part 2: http://www.youtube.com/watch?v=l-wJDJ... Earth Is Born - Part 3: http://www.youtube.com/watch?v=nzVmCC... Earth Is Born - Part 4: http://www.youtube.com/watch?v=XfTEFc... Earth Is Born - Part 5: http://www.youtube.com/watch?v=e6-oWg... How Life Began - Introduction: http://www.youtube.com/watch?v=Wooi1D... How Life Began - Part 1: http://www.youtube.com/watch?v=KBrv3F... How Life Began - Part 2: http://www.youtube.com/watch?v=qzZkgR... How Life Began - Part 3: http://www.youtube.com/watch?v=b1EIuh... How Life Began - Part 4: http://www.youtube.com/watch?v=vMgeqA... How Life Began - Part 5: http://www.youtube.com/watch?v=IEitPj... Where Are The Aliens? - Introduction: http://www.youtube.com/watch?v=eizOJO... Where Are The Aliens? - Part 1: http://www.youtube.com/watch?v=2N7EtL... Where Are The Aliens? - Part 2: http://www.youtube.com/watch?v=VN5IZG... Where Are The Aliens? - Part 3: http://www.youtube.com/watch?v=WEZ39B... Where Are The Aliens? - Part 4: http://www.youtube.com/watch?v=_d-3LR... Where Are The Aliens? - Part 5: http://www.youtube.com/watch?v=jxRAkf... Back To The Beginning - Introduction: http://www.youtube.com/watch?v=QkMRVU... Back To The Beginning - Part 1: http://www.youtube.com/watch?v=U_shoh... Back To The Beginning - Part 2: http://www.youtube.com/watch?v=WiBwhx... Back To The Beginning - Part 3: http://www.youtube.com/watch?v=mDwZ6M... Back To The Beginning - Part 4: http://www.youtube.com/watch?v=wZNQd9... Product of WGBH Educational Foundation. From the "Earth Is Born" disc. To purchase the DVD set, click here: http://www.amazon.com/NOVA-Origins-Ne... Tags: astronomy, bang, big, carl, cosmology, cosmos, degrasse, dvd, earth, neil, nova, origins, pbs, physics, sagan, science, tyson, universe 1 Downloads - Last from: http://downthisvideo.com/ (Your Blog here!)
[View \| Download]	Origins - Earth Is Born - Part 2 By arey051012 PBS's NOVA series presents "Origins - Fourteen Billion Years of Cosmic Evolution." Hosted by author Neil deGrasse Tyson. Earth Is Born - Introduction: http://www.youtube.com/watch?v=Up56ls... Earth Is Born - Part 1: http://www.youtube.com/watch?v=8brEo1... Earth Is Born - Part 2: http://www.youtube.com/watch?v=l-wJDJ... Earth Is Born - Part 3: http://www.youtube.com/watch?v=nzVmCC... Earth Is Born - Part 4: http://www.youtube.com/watch?v=XfTEFc... Earth Is Born - Part 5: http://www.youtube.com/watch?v=e6-oWg... How Life Began - Introduction: http://www.youtube.com/watch?v=Wooi1D... How Life Began - Part 1: http://www.youtube.com/watch?v=KBrv3F... How Life Began - Part 2: http://www.youtube.com/watch?v=qzZkgR... How Life Began - Part 3: http://www.youtube.com/watch?v=b1EIuh... How Life Began - Part 4: http://www.youtube.com/watch?v=vMgeqA... How Life Began - Part 5: http://www.youtube.com/watch?v=IEitPj... Where Are The Aliens? - Introduction: http://www.youtube.com/watch?v=eizOJO... Where Are The Aliens? - Part 1: http://www.youtube.com/watch?v=2N7EtL... Where Are The Aliens? - Part 2: http://www.youtube.com/watch?v=VN5IZG... Where Are The Aliens? - Part 3: http://www.youtube.com/watch?v=WEZ39B... Where Are The Aliens? - Part 4: http://www.youtube.com/watch?v=_d-3LR... Where Are The Aliens? - Part 5: http://www.youtube.com/watch?v=jxRAkf... Back To The Beginning - Introduction: http://www.youtube.com/watch?v=QkMRVU... Back To The Beginning - Part 1: http://www.youtube.com/watch?v=U_shoh... Back To The Beginning - Part 2: http://www.youtube.com/watch?v=WiBwhx... Back To The Beginning - Part 3: http://www.youtube.com/watch?v=mDwZ6M... Back To The Beginning - Part 4: http://www.youtube.com/watch?v=wZNQd9... Product of WGBH Educational Foundation. From the "Earth Is Born" disc. To purchase the DVD set, click here: http://www.amazon.com/NOVA-Origins-Ne... Tags: astronomy, bang, big, carl, cosmology, cosmos, degrasse, dvd, earth, neil, nova, origins, pbs, physics, sagan, science, tyson, universe 1 Downloads - Last from: http://downthisvideo.com/ (Your Blog here!)
[View \| Download]	Origins - Earth Is Born - Part 1 By arey051012 PBS's NOVA series presents "Origins - Fourteen Billion Years of Cosmic Evolution." Hosted by author Neil deGrasse Tyson. Earth Is Born - Introduction: http://www.youtube.com/watch?v=Up56ls... Earth Is Born - Part 1: http://www.youtube.com/watch?v=8brEo1... Earth Is Born - Part 2: http://www.youtube.com/watch?v=l-wJDJ... Earth Is Born - Part 3: http://www.youtube.com/watch?v=nzVmCC... Earth Is Born - Part 4: http://www.youtube.com/watch?v=XfTEFc... Earth Is Born - Part 5: http://www.youtube.com/watch?v=e6-oWg... How Life Began - Introduction: http://www.youtube.com/watch?v=Wooi1D... How Life Began - Part 1: http://www.youtube.com/watch?v=KBrv3F... How Life Began - Part 2: http://www.youtube.com/watch?v=qzZkgR... How Life Began - Part 3: http://www.youtube.com/watch?v=b1EIuh... How Life Began - Part 4: http://www.youtube.com/watch?v=vMgeqA... How Life Began - Part 5: http://www.youtube.com/watch?v=IEitPj... Where Are The Aliens? - Introduction: http://www.youtube.com/watch?v=eizOJO... Where Are The Aliens? - Part 1: http://www.youtube.com/watch?v=2N7EtL... Where Are The Aliens? - Part 2: http://www.youtube.com/watch?v=VN5IZG... Where Are The Aliens? - Part 3: http://www.youtube.com/watch?v=WEZ39B... Where Are The Aliens? - Part 4: http://www.youtube.com/watch?v=_d-3LR... Where Are The Aliens? - Part 5: http://www.youtube.com/watch?v=jxRAkf... Back To The Beginning - Introduction: http://www.youtube.com/watch?v=QkMRVU... Back To The Beginning - Part 1: http://www.youtube.com/watch?v=U_shoh... Back To The Beginning - Part 2: http://www.youtube.com/watch?v=WiBwhx... Back To The Beginning - Part 3: http://www.youtube.com/watch?v=mDwZ6M... Back To The Beginning - Part 4: http://www.youtube.com/watch?v=wZNQd9... Product of WGBH Educational Foundation. From the "Earth Is Born" disc. To purchase the DVD set, click here: http://www.amazon.com/NOVA-Origins-Ne... Tags: astronomy, bang, big, carl, cosmology, cosmos, degrasse, dvd, earth, neil, nova, origins, pbs, physics, sagan, science, tyson, universe 1 Downloads - Last from: http://downthisvideo.com/ (Your Blog here!)
[View \| Download]	M theory: what does it stand for? - Parallel Universes - BBC Science By BBCWorldwide Does M Theory explain everything in the universe? What does it stand for and what does it mean? And how does the eleventh dimension play a part in the new theory? Find out more about the surreal scientific theories that question our existence in the universe in this video from BBC science show 'Parallel Universes'. Tags: astronomy, awesome, bbc, education, einstein, formulas, free, parallel, physics, science, space, universe, video, weird, wow 2 Downloads - Last from: http://downthisvideo.com/ (Your Blog here!)
[View \| Download]	Beyond the Light: Dark Matter By hellgas0 The cosmic ocean twinkles and transforms with the birth of stars and their explosive demise into supernovas. Brilliantly bright and wrought with destructive power, supernovas and their gaseous remnants are a frequent target of NASA's Chandra X-ray Observatory because of the clues they give us about their earlier lives as stars. Equipped with X-ray detectors to cut through the clutter and glare that blind optical telescopes, Chandra's revealed details about supernovas that help to shown them for the stars that they once were. http://www.nasa.gov/multimedia/podcas... Tags: astronomy, chandra, dark, galexy, hellgas0, higgs, matter, nasa, nova, observatory, ray, space, stars, super, universe 1 Downloads - Last from: http://downthisvideo.com/ (Your Blog here!)
[View \| Download]	What's Wrong with the Big Bang Theory? By ForaTv Complete video at: http://fora.tv/2009/05/23/Marcus_Chow... Marcus Chown argues that as more and more ideas are "tacked on" to the original big bang theory, it's becoming apparent that there is "a really, really big idea missing." He predicts "someone in the next...10-15 years is going to come up with the missing idea." ----- The two towering achievements of modern physics are quantum theory and Einsteins general theory of relativity. Together, they explain virtually everything about the world in which we live. But almost a century after their advent, most people havent the slightest clue what either is about. Radio astronomer, award-winning writer and broadcaster Marcus Chown talks to fellow stargazer Fred Watson about his book Quantum Theory Cannot Hurt You. - Australian Broadcasting Corporation Marcus Chown is an award-winning writer and broadcaster. Formerly a radio astronomer at the California Institute of Technology, he is now cosmology consultant of the weekly science magazine New Scientist. The Magic Furnace, Marcus' second book, was chosen in Japan as one of the Books of the Year by Asahi Shimbun. In the UK, the Daily Mail called it "a dizzy page-turner with all the narrative devices you'd expect to find in Harry Potter". His latest book is called Quantum Theory Cannot Hurt You. Tags: astronomy, bang, beginning, big, cosmos, created, creation, dark, e..., energy, matter, origin, physics, planet, quantum, science, space, star, theory, universe 1 Downloads - Last from: http://downthisvideo.com/ (Your Blog here!)
[View \| Download]	Universe is contracting - Big Bang theory is wrong By initialphysics Universe which astronomy can observe is a very tiny portion of real universe which has shape of a disc and this universal disc contains Milky Way, galaxies orbit spirally in this universal disc acceleratingly from the egde to the center of this universal disc as analogue as star systems orbit spirally and acceleratingly in a galaxy. Because the galaxies orbit spirally with the increasing of velocity Therefore, on the spiral trajector of galaxy in this universal disc, Milky Way moves slower than galaxy A which has front position of Milky Way, Milky Way moves faster than galaxy B which has backward position of Milky Way. On the direction from galaxies to the center of this universal disc, Milky Way decreases the distance to the center of this universal disc slower than galaxy D which has outside position of Milky Way , Milky Way increases the distance to the center of this universal disc faster than galaxy faster than galaxy C which has inside position , after intervals of time, Galaxies A, B, C, D increase the distance from them to Milky Way acceleratingly, and the same with the increasing of distances from broadside galaxies of Milky Way to Milky Way. The shape of universe is flat disc with the center has commune black hole which galaxies orbit spirally this commune black hole and this commune black hole is called the Mother Black Hole of Mother's disc system of galaxies. Consequently, the universe which contains Miky Way is contracting and the Big Bang theory is wrong because: -Big Bang theory is not compatible with the gravitational force which exists in the universe. -Gravitational force governs the motion of galaxies in the universal disc such as gravitational force governs the motion of star systems in a galaxy, and this rule is repeated from small scale to larger scale. -The fundamental particle or matter must birth from simple material and simple mechanics with the universal establishing which shares the rule as analogue as rule of hurricanes movement. - Big Bang theory and current physics did not question whether the universe starts from a place where we are unable to observe from the Earth currently. Big Bang theory repeats the mistake human made in pre-Copernicus era, the Geocentric model views that the Earth is at the center of the universe and other heavenly bodies orbit about it, and humankind is at the center of the universe. It is the conclusion about the nature of a systems motion made directly from the observation at only one position. It means that Big Bang establisher and believer are consciously or unconsciously think that we are at the center of the universe. In this manner, the universe was given birth in the area where we can observe only, and brought about the conclusion that the universes size is only 13.7 billion light years and its age is just as young as 13.7 billion light years old- a very tinny number to compare with the real number of the real universal disc. And on the upper scale, there are many other universal discs like universal disc which contains Milky Way are grouping a upper scale disc and these universal disc are orbiting spirally and acceleratingly around a upper commune black hole which is called grand mother of these universal discs. Tags: astronomy, bang, big, bl..., contracting, expanding, galaxy, gravitation, gravity, light, milky, nasa, shrinking, solar, speed, supernova, system, universe, way 1 Downloads - Last from: http://downthisvideo.com/ (Your Blog here!)
[View \| Download]	1of5_The Universe-Alien Galaxies By Zuke696 This is part 1 of a 5 part episode. To watch the full show go to my channel (Zuke696) then go to my Playlist, find the show then click Play All - Our sun is one of billions of stars in the Milky Way Galaxy, and our galaxy is one of hundreds of billions, maybe a trillion in the known universe. From the Hubble Space Telescope comes a view of the universe that was. A magnificent trip through the mists of history and back nearly all the way to the Big Bang. Each smudge, each clump, each blob of light, a billion stars here, a trillion stars there. If you want to know our place in the universe, take a look up and far, far away to the realm of alien galaxies. Tags: astronomy, bang, big, cosmology, cosmos, dark, energy, galaxies, hubble, matter, planets, seti, stars, sun, universe 1 Downloads - Last from: http://downthisvideo.com/ (Your Blog here!)
[View \| Download]	Vangelis -conquest of the paradise - the universe By discoverngc astronomy space cosmology hubble telescopes universe hubble pictures of our universe ,stars,nebulas,galaxies... Tags: astronomy, conquest, of, paradise, space, universe, vangelis 1 Downloads - Last from: http://downthisvideo.com/tag/pasion (Your Blog here!)
[View \| Download]	Earth Rotation By KurdstanPlanetarium rotation of planet Earth Tags: astronomy, earth, kurd, kurdistan, nasa, planet, rotation, solar, space, system 1 Downloads - Last from: http://downthisvideo.com/ (Your Blog here!)