09-22-2018
Neo's Recommended Audio Books
Just finished this Audible audio book. It's simply great.
Highly recommended:
This book was so well done that I did not want to miss a single word; so ended up listening to half of the book twice when I got distracted. This is a great audio book.
Publisher's Summary
Quote:
For more than half a century, physicists and astronomers engaged in heated dispute over the possibility of black holes in the universe. The weirdly alien notion of a space-time abyss from which nothing escapes - not even light - seemed to confound all logic. This engrossing audiobook tells the story of the fierce black-hole debates and the contributions of Einstein, Hawking, and other leading thinkers who completely altered our view of the universe. Renowned science writer Marcia Bartusiak shows how the black hole helped revive Einstein's greatest achievement, the general theory of relativity, after decades during which it had been pushed into the shadows. Not until astronomers discovered such surprising new phenomena as neutron stars and black holes did the once-sedate universe transform into an Einsteinian cosmos, filled with sources of titanic energy that can be understood only in the light of relativity.
Celebrating the 100th anniversary of general relativity, Black Hole uncovers how the black hole really got its name and recounts the scientists' frustrating, exhilarating, and at times humorous battles over the acceptance of one of history's most dazzling ideas
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LEARN ABOUT MINIX
pbmclean
pbmclean(1) General Commands Manual pbmclean(1)
NAME
pbmclean - flip isolated pixels in portable bitmap
SYNOPSIS
pbmclean [-minneighbors=N] [-black|-white] [pbmfile]
You can use the minimum unique abbreviation of the options. You can use two hyphens instead of one. You can separate an option name from
its value with white space instead of an equals sign.
Before December 2001, pbmclean accepted -N instead of -minneighbors.
DESCRIPTION
pbmclean cleans up a PBM image of random specs. It reads a PBM image as input and outputs a PBM that is the same as the input except with
every pixel which has less than N identical neighbours inverted.
The default for N is 1 - only completely isolated pixels are flipped.
(A value of N greater than 8 generates a completely inverted image (but use pnminvert to do that) -- or a completely white or completely
black image with the -black or -white option).
pbmclean considers the area beyond the edges of the image to be white. (This matters when you consider pixels right on the edge of the
image).
You can use pbmclean to clean up "snow" on bitmap images.
OPTIONS
-black
-white Flip pixels of the specified color. By default, if you specify neither -black nor -white, pbmclean flips both black and white pix-
els which do not have sufficient identical neighbors. If you specify -black, pbmclean leaves the white pixels alone and just erases
isolated black pixels. Vice versa for -white. You may specify both -black and -white to get the same as the default behavior.
SEE ALSO
pbm(5)
AUTHOR
Copyright (C) 1990 by Angus Duggan Copyright (C) 1989 by Jef Poskanzer. Copyright (C) 2001 by Michael Sternberg.
Permission to use, copy, modify, and distribute this software and its documentation for any purpose and without fee is hereby granted, pro-
vided that the above copyright notice appear in all copies and that both that copyright notice and this permission notice appear in sup-
porting documentation. This software is provided "as is" without express or implied warranty.
18 Oct 2001 pbmclean(1)