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Published online 6 March 2008 | Nature | doi:10.1038/news.2008.651
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'Black hole' made from light
Pulses in an optical fibre can mimic the space-bending physics of collapsed stars.
A black hole has been made in the laboratory. It’s not, needless to say, a collapsed star with super-strong gravity, like the black holes thought to exist in deep space.
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The first paragraph that purports to explain the concept of "white hole" equates the flow of a river with wave-motion. The analogy is inappropriate, the phenomena being distinct.