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1. What is a black hole?; 2. How is a stellar black hole created?; 3. How can light be trapped by the gravitational pull of a black hole if light has no mass?; 4. How does a black hole appear?; 5. Is a black hole a giant cosmic vacuum cleaner?; 6. Do all stars become black holes?; 7. How many kinds of black holes are...
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amazing-space.stsci.edu/resources/explorations/blackhol...
amazing-space.stsci.edu/resources/explorations/blackholes/teacher/sciencebackground.html
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A common type of black hole is produced by certain dying stars. A star with a mass greater than about 20 times the mass of our Sun may produce a black hole at the end of its life.
http://hubblesite.org/reference_desk/faq/answer.php.id=...
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Black hole - Wikipedia, the free encyclopedia
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In general relativity, a black hole is a region of space in which the gravitational field is so powerful that nothing, not even light, can escape. The black hole has a one-way surface, called an eve...
en.wikipedia.org/wiki/Black_hole
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Black Hole Created at Saint Andrews University ... The experimenters have created one variety of an event horizon. They have not created a black hole. Once again I am disappointed at that which I hold so dear has seen fit to reduce its standards of journalism to those more suited to the pages of a daily tabloid.
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physicsworld.com/cws/article/news/33256
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Now Qiang and Tie have created a metamaterial that distorts space so severely that light entering it (in this case microwaves) cannot escape. ... Their black hole consists of 60 layers of printed circuit board arranged in concentric circles (see picture below). The printed circuit boards are coated in a thin layer of...
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www.technologyreview.com/blog/arxiv/24234/
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From MIT. Information on Emerging Technologies & impact on business & society ... Today, Oren Lahav and his mates at the Israel Institute of Technology, in Haifa, say that they've created the sonic equivalent of a black hole in a BEC.
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www.technologyreview.com/blog/arxiv/23625/
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Even if Nastase turns out to be right, the black holes created pose no danger. At this scale gravity is not the dominant force in a black hole and they quickly evaporate away - this one lasted a mere 10-23 seconds, that is 10 million, billion, billionths of a second.
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en.wikinews.org/wiki/Possible_black_hole_created_in_US
en.wikinews.org/wiki/Possible_black_hole_created_in_US
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If (and that remains a big "if") the LHC creates a black hole it will be extremely tiny, much smaller than a single atom, said Wilzcek. Its mass will be the same as the two protons that created it. Its range will be small -- only a few times the diameter of the two protons.
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dsc.discovery.com/news/2008/09/10/black-hole-cern.html
dsc.discovery.com/news/2008/09/10/black-hole-cern.html
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