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Black Holes:     more books (99)

Black Hole by Charles Burns, 2008-01-08 The Black Hole War: My Battle with Stephen Hawking to Make the World Safe for Quantum Mechanics by Leonard Susskind, 2009-07-22 Homes and Other Black Holes by Dave Barry, 1995-05-01 Black Hole Sun by David Macinnis Gill, 2010-09-01 Black Holes and Time Warps: Einstein's Outrageous Legacy (Commonwealth Fund Book Program) by Kip S. Thorne, 1995-01-17 Death by Black Hole: And Other Cosmic Quandaries by Neil deGrasse Tyson, 2007-11-17 Flying from the Black Hole: The B-52 Navigator-bombardiers of Vietnam by Robert O. Harder, 2009-05-04 Black Holes and Baby Universes and Other Essays by Stephen W. Hawking, 1994-09-01 Black Holes: And Other Bizarre Space Objects (Science Frontiers) by David Jefferis, 2006-04-30 A User's Guide to the Universe: Surviving the Perils of Black Holes, Time Paradoxes, and Quantum Uncertainty by Dave Goldberg, Jeff Blomquist, 2010-02-22 Mysterious Universe: Supernovae, Dark Energy, and Black Holes (Scientists in the Field Series) by Ellen Jackson, 2008-05-05 An Introduction To Black Holes, Information And The String Theory Revolution: The Holographic Universe by Leonard Susskind, James Lindesay, 2004-12-23 Exploring Black Holes: Introduction to General Relativity by Edwin F. Taylor, John Archibald Wheeler, 2000-07-22 Gravity's Fatal Attraction: Black Holes in the Universe by Mitchell Begelman, Martin Rees, 2009-12-28

lists with details

1. HubbleSite: Black Holes: Gravity's Relentless Pull
   Black Holes Gravity s Relentless Pull. Information, virtual journeys, and simulations about black holes from the Space Telescope Science Institute.  
   http://hubblesite.org/explore_astronomy/black_holes/

2. RHIC Speculative Disaster Scenarios
   Black holes at RHIC? A statement from RHIC theoretical nuclear physicist Dmitri Kharzeev. Horatiu Nastase, a member of the highenergy physics theory group  
   http://www.bnl.gov/rhic/black_holes.htm
   
   Extractions: Horatiu Nastase, a member of the high-energy physics theory group at Brown University, has written a paper, posted on the preprint website arxiv.org, in which he claims that collisions at Brookhaven’s Relativistic Heavy Ion Collider (RHIC) produce the analog of a black hole. Horatiu is referring to a mathematical similarity between the physics of the real world, which govern RHIC collisions, and the physics that scientists use to describe a theoretical, “imaginary” black hole in a hypothetical world with a different number of space-time dimensions (more than the four dimensions — three space directions and time — that exist in our world). That is, the two situations require similar mathematical wrangling to analyze. This imaginary, mathematical black hole that Horatiu compares to the RHIC fireball is completely different from a black hole in the real universe; in particular, it cannot grow by gobbling up matter. In other words, and because the amount of matter created at RHIC is so tiny, RHIC does not, and cannot possibly, produce a true, star-swallowing black hole. This does not mean, however, that RHIC cannot study some of the phenomena that happen in the vicinity of black holes, as explained in a paper we wrote with Kirill Tuchin, also of Brookhaven's theoretical nuclear physics group. The explanation for this begins with Einstein’s “Equivalence Principle,” which states that gravity and acceleration (or deceleration) are actually equivalent forces. The principle explains why a person going up in an elevator feels slightly heavier, just as they would if gravity on Earth were stronger.

3. APOD Index - Stars: Black Holes
   From NASA s Astronomy Picture of the Day archive, the three most educational images (editor s choice) related to black holes.  
   http://apod.nasa.gov/apod/black_holes.html
   
   Extractions: Explanation: What does a black hole look like? If alone, a black hole would indeed appear quite black, but many black hole candidates are part of binary star systems . So how does a black hole binary system look different from a neutron star binary system ? The above drawings indicate it is difficult to tell! Recent theoretical work , however, has provided a new way to tell them apart: advective accretion flows (ADAFs) . A black hole system so equipped would appear much darker than a similar neutron star system. The difference is caused by the hot gas from the ADAF disk falling through the event horizon of the black hole and disappearing - gas that would have emitted much light were the central object only a neutron star. Recent observations of the soft X-ray transient V404 Cyg has yielded a spectrum much like an ADAF onto a black hole - and perhaps brighter than allowable from an ADAF onto a neutron star.

4. Ask An Astrophysicist: Black Holes
   Commonlyasked questions, and a way to ask an astronomer a question about black holes.  
   http://imagine.gsfc.nasa.gov/docs/ask_astro/black_holes.html
   
   Extractions: Library of Past Questions First time visitors: Please be sure to read our main page How many black holes are currently known? Where is, and how far is the nearest known Black Hole? Is it true that time stops at the Event Horizon? If light has no mass, how can it get trapped in a Black Hole? ... Can black holes/worm holes transport you to other worlds? Who was the first person to discover a black hole and what was the date?

5. Black Holes
   Basic ideas of black hole physics, plus some more advanced material about astrophysical and quantumgravity aspects; based on lectures given as part of a  
   http://theory.uwinnipeg.ca/users/gabor/black_holes/

6. Profile: Black_Holes - Rate Your Music
   Rate Your Music is an online community of people who love music. Catalog, rate, tag, and review your music. List and review the concerts you ve attended,  
   http://rateyourmusic.com/~Black_Holes

7. The European Homepage For The NASA/ESA Hubble Space Telescope - Hubble Science
   The existence of black holes has been theorised for more than 200 years. It is impossible to observe them directly, so astronomers had no way to test their  
   http://www.spacetelescope.org/science/black_holes.html
   
   Extractions: Spyglasses into the Universe – Gravitational lenses 300 million solar-mass black hole in galaxy NGC 7052. The existence of black holes has been theorised for more than 200 years. It is impossible to observe them directly, so astronomers had no way to test their theories until Hubble arrived. The high resolution of Hubble made it possible to see the effects of the gravitational attraction of some of these objects on their surroundings. Hubble has also proved that black holes are most likely present at the centres of all galaxies . This has important implications for the theories of galaxy formation and evolution. Before Hubble, quasars were considered to be isolated star-like objects of a mysterious nature. Hubble has observed several quasars and found that they all reside at galactic centres. Today most scientists believe that black holes at the galactic centres are the "engines" that power the quasars. In the 1950s and 1960s astronomers had found objects, such as quasars and radio sources, whose energy output was so immense that it could not be explained by traditional sources of energy such as that produced by normal stars. It was suggested that their vast energy output could best be explained if massive black holes were at the centres of these objects. A jet of electrons streaming out from the centre of the galaxy M87 Prior to the launch of Hubble a handful of black hole candidates had been studied but the limitations of ground based astronomy were such that irrefutable evidence for their existence could not be obtained. Black holes themselves, by definition, cannot be observed, since no light can escape from them.

8. What Is A Black Hole, Really?
   What is a black hole, really? In 1916, when general relativity was new, Karl Schwarzschild worked out a useful solution to the Einstein equation describing  
   http://www2.corepower.com:8080/~relfaq/black_holes.html
   
   Extractions: original by Matt McIrvin In 1916, when general relativity was new, Karl Schwarzschild worked out a useful solution to the Einstein equation describing the evolution of spacetime geometry. This solution, a possible shape of spacetime, would describe the effects of gravity outside a spherically symmetric, uncharged, nonrotating object (and would serve approximately to describe even slowly rotating objects like the Earth or Sun). It worked in much the same way that you can treat the Earth as a point mass for purposes of Newtonian gravity if all you want to do is describe gravity outside the Earth's surface. What such a solution really looks like is a "metric," which is a kind of generalization of the Pythagorean formula that gives the length of a line segment in the plane. The metric is a formula that may be used to obtain the "length" of a curve in spacetime. In the case of a curve corresponding to the motion of an object as time passes (a "timelike worldline,") the "length" computed by the metric is actually the elapsed time experienced by an object with that motion. The actual formula depends on the coordinates chosen in which to express things, but it may be transformed into various coordinate systems without affecting anything physical, like the spacetime curvature. Schwarzschild expressed his metric in terms of coordinates which, at large distances from the object, resembled spherical coordinates with an extra coordinate t for time. Another coordinate, called r, functioned as a radial coordinate at large distances; out there it just gave the distance to the massive object.

9. MySpace.com - Emile - 18 - Male - Glasgow, UK - Www.myspace.com/black_holes
   http//www.myspace.com/black_holes. Hello, you either have JavaScript turned off or an old version of Macromedia s Flash Player.  
   http://profile.myspace.com/black_holes
   
   Extractions: siteURL = "http://www.myspace.com/" Emile's Interests General What makes my cynical self happy! Warwick bass guitars ( orgasmic ), being laid back - watching the world go by, looking up at the clear sky at night - just thinking of what is out there in those stars, watching Scrubs, Doctor Who and Torchwood ( John Barrowman; what a hunk! ), having the occasional rant at people, Heineken beer and many other types, expensive port, good simple rustic food and then realizing I'll need to burn it off. The band i play in! temporary called ,'Cybermen'. About few years ago. Me and my brother had wanted to start up a band; Antoine was always writing some good stuff and i must admit he surprised me when i first listened to some of the songs he recorded. So i just made myself the bass player. We now have in the band, our cousin Andrew on the guitar and our friend Graeme on the drums. highlightInterests("ProfileGeneral");

10. Index Of /journeys/black_holes
    . Parent Directory Default.html 19-Oct-2005 1911 2.8K greek_chars/ 14-May-2005 1813Index of /journeys/black_holes. Name Last modified Size  
    http://perry.sonoma.edu/journeys/black_holes/

11. Help.com
    Are you tagged black_holes? Join Consumating! People who are tagged black_holes are also frequently tagged. music rock  
    http://www.consumating.com/tags/black_holes

12. Black Holes - Crystalinks
    A black hole is a star that has collapsed into a tiny point known as a singularity. It is so dense that it sucks in everything near it, including light.  
    http://www.crystalinks.com/black_holes.html
    
    Extractions: A black hole is a star that has collapsed into a tiny point known as a singularity. It is so dense that it sucks in everything near it, including light. Black holes can be seen via the death throes of the matter being sucked in. Although it becomes invisible past a certain point, an accretion disk, which is visible, develops as the matter swirls toward the black hole. The collapsed star is so dense that nothing can escape its gravitational pull, not even light. A black hole is a concentration of mass great enough that the force of gravity prevents anything from escaping from it except through quantum tunneling behavior. The gravitational field is so strong that the escape velocity near it exceeds the speed of light. This implies that nothing, not even light, can escape its gravity, hence the word "black." The term "black hole" is widespread, even though it does not refer to a hole in the usual sense, but rather a region of space from which nothing can return. Theoretically, black holes can have any size, from microscopic to near the size of the observable universe. Black holes are predicted by general relativity. According to classical general relativity, neither matter nor information can flow from the interior of a black hole to an outside observer. For example, one cannot bring out any of its mass, or receive a reflection back by shining a light source such as a flashlight, or retrieve any information about the material that has entered the black hole. Quantum mechanical effects may allow matter and energy to radiate from black holes; however, it is thought that the nature of the radiation does not depend on what has fallen into the black hole in the past.

13. Black_holes
    black_holes. The Truth, Black holes are like the Universe s Giant Dust Busters. They are there to regulate balance and ensure a productive creation.  
    http://blather.newdream.net/b/black_holes.html

14. Black Holes
    COLLAPSED STARS. Stars are balanced by its own gravity which pushes inward on the star and pressure that comes from its burning of nuclear fuel which  
    http://www.physlib.com/black_holes.html
    
    Extractions: Stars are balanced by its' own gravity which pushes inward on the star and pressure that comes from its burning of nuclear fuel which pushes outwards on the star. When the star has burned all its' nuclear fuel the gravity takes over and squeezes the star. Then there are three things that can happen to the star depending on how massive it is. First it will blow of a lot of unstable matter from it, but the rest of it will have one of three faiths. When a star is more massive then 2 solar masses, when it starts to collapse the electrons degeneracy pressure will not be enough. The electrons will move more and more furiously until the power produced by their motion will overwhelm the electromagnetic force, which is the force the keeps the electrons around the atom. Now when the electrons are no longer attached to the nucleus of the atom and moves around freely they will collide with protons since positive attracts negative charges. Then the electrons negative charge and the protons positive charge takes each other out and creates a neutral charge, a neutron. Now the star starts too fill up with neutrons and since the neutrons are more numerous then the electrons where(the neutrons that were already there and the newly created out of the electrons and protons), the neutron degeneracy pressure will be enough to stop the collapse of stars heavier then 2 solar masses.

15. Black Holes Videos - Watch Video About Black Holes On Mefeedia
    also in space nasa quasar black_holes black_hole infrared_astronomy also in nova science pbs space physics galaxy astrophysics black_holes blackholes  
    http://www.mefeedia.com/tags/black_holes/

16. Science, Physics, Relativity, Black Holes - Findtarget.com
    Findtarget.com delivers comprehensive Science, Physics, Relativity, Black Holes content to satisfy your Science, Physics, Relativity, Black Holes needs.  
    http://findtarget.com/FT/Science/Physics/Relativity/Black_Holes
    
    Extractions: Sites in Black Holes About Astronomy and Space - Black Holes Find articles, information, and web sites about these theoretical cellestial objects, formed when a massive star collapses from its own gravity. http://space.about.com/cs/blackholes/index.htm Black Hole Recipe: Slow Light, Swirl Atoms Physicists may soon create artificial analogs of black holes in the laboratory. http://sciencenews.org/20000205/fob4.asp Black Holes We review the observational evidence for black holes, and briefly discuss some of their properties. We also describe some recent developments involving cosmic censorship and the statistical origin of black hole entropy http://xxx.lanl.gov/abs/gr-qc/9808035

17. Zecg's Bookmarks About Black_holes
    by zecg 200610-20 0424 black_holes · physics · space. http//www.thestate.com/mld/thestate/news/nation/14489240.htm - cached - mail it - history  
    http://www.simpy.com/user/zecg/tag/black_holes
    
    Extractions: @import url(/css/terra-cota.css); links people groups tags links tags groups watchlists notes login sign up now! help blog simpy google_kw_ignore=" black_holes physics determinism einstein hawking history interesting lecture quantum_physics space universe"; Home people zecg links ... zecg , member since Fri Oct 20 04:13:55 EDT 2006 1471 Visible Links (1471 total), Public Groups 20+ Top Tags Search Everyone: Top experts: teardown joskirps briceone harriet Show all 1 - 3 of 3 Watch zecg Does God Play Dice? - Professor Stephen Hawking "Many scientists are like Einstein, in that they have a deep emotional attachment to determinism. Unlike Einstein, they have accepted the reduction in our ability to predict, that quantum theory brought about." by zecg lecture hawking interesting ... einstein http://www.hawking.org.uk/lectures/dice2.html cached mail it history "Will calculated the equal and opposite reaction the merged holes experience as they cast off that momentum. The recoil speed - about 200 kilometers per second - is fast enough to eject the merged black hole from small galaxies."

18. Steam Community :: ID :: Black_holes
    SteamID. black_holes. Profile _. No information given. Groups _. Answer my question. UK Family. 12 Members. 0 Chatting, 1 InGame, 2 Online  
    http://steamcommunity.com/id/THERE
    
    Extractions: var avatar_base_url = "http://media.steampowered.com/steamcommunity/public/images/avatars/"; Select your preferred language. - choose language - Danish Dutch English Finnish French German Italian Japanese Korean Norwegian Polish Portuguese Russian Simplified Chinese Traditional Chinese Spanish Swedish Thai Login Home What is Steam Community News Forums Support Stats Last Online: 2 hrs, 54 mins ago Actions Add to your friends list Gameplay Stats Member since: November 10, 2007 Steam Rating: 10 - EAGLES SCREAM! Playing time: 51 hrs past 2 weeks 1. Half-Life 2: Deathmatch

19. Discover From Your Favorite Topic Or Web Page: Hubblesite.org/explore_astronomy/
    About Us Megite Discover is a crowdsourcing service for web browsing provided by , a leading social news aggregator.  
    http://www.megite.com/discover/:hubblesite.org/explore_astronomy/black_holes/

20. Directory Listing Of /texts/science_and_technology/physics
    black_holes.txt, 4KB, Feb 02 2007 105416 PM. black_holes_FAQ.txt, 36KB, Feb 02 2007 105416 PM. Black_Hole_Interior.txt, 5KB, Feb 02 2007 105416 PM  
    http://www.preterhuman.net/texts/science_and_technology/physics/black_holes/

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