A Step Farther Out
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In our eReader you can find the full English version of the book. Read A Step Farther Out Online - link to read the book on full screen. Our eReader also allows you to upload and read Pdf, Txt, ePub and fb2 books. In the Mini eReder on the page below you can quickly view all pages of the book - Read Book A Step Farther Out
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Because they're fuzzy, they're not really black.If that seems confusing, read on: it doesn't get a lot clearer, but don't worry about it; not many people in all this world understand, and those that do have to believe three impossible things before breakfast.In the previous chapter I told you that if a chunk of matter gets squeezed small enough it becomes a black hole. That's about 3 kilometers radius for our Sun. We also gave the equation for the radius for those who know how to punch the butto...ns on a good scientific calculator.Actually we don't know the radius of a black hole. What we calculate is the radius of the "Schwarzschild region": that more-or-less sphere within which the surface gravity is so large that light cannot get out, and from which no signals can ever escape. In fact, nothing can escape from within the Schwarzschild radius. Also, down in there somewhere lurks a singularity that does strange things to time and causality.* * *If you watched a star collapse you'd never see it get quite so small as that.
What to read after A Step Farther Out?
You can find similar books in the "Read Also" column, or choose other free books by Jerry Pournelle to read onlineMoreLess
To quickly assess the difficulty of the text, read a short excerpt:
Because they're fuzzy, they're not really black.If that seems confusing, read on: it doesn't get a lot clearer, but don't worry about it; not many people in all this world understand, and those that do have to believe three impossible things before breakfast.In the previous chapter I told you that if a chunk of matter gets squeezed small enough it becomes a black hole. That's about 3 kilometers radius for our Sun. We also gave the equation for the radius for those who know how to punch the butto...ns on a good scientific calculator.Actually we don't know the radius of a black hole. What we calculate is the radius of the "Schwarzschild region": that more-or-less sphere within which the surface gravity is so large that light cannot get out, and from which no signals can ever escape. In fact, nothing can escape from within the Schwarzschild radius. Also, down in there somewhere lurks a singularity that does strange things to time and causality.* * *If you watched a star collapse you'd never see it get quite so small as that.
What to read after A Step Farther Out?
You can find similar books in the "Read Also" column, or choose other free books by Jerry Pournelle to read onlineMoreLess
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