title: The Sky Is Not the Limit: Adventures of an Urban Astrophysicist
author:  Neil de Grasse Tyson 
description: Cool, classy, articulate, and brilliant--rarely do all of those adjectives apply at once to an astrophysicist. But Neil de Grasse Tyson is no ordinary scientist; as the director of New York City's Hayden planetarium, his job is to inspire the public with the beauty and grandeur of the universe, just as he was inspired there in his youth. <i>The Sky Is Not the Limit</i> is his memoir of the events leading from his birth to his acceptance of his dream job and beyond, and is a marvelously entertaining look at one man's pursuit of his life's calling. Tyson emphasizes the nurturing roles played by his parents, friends, and teachers, in contrast to the sometimes well-meaning but always disappointing discouragement he experienced from all sides in his quest for his Ph.D.
zlib_text: 
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  FROM ROUND CITIES
  
  
  TO SPACE RINGS
  
  
  
  
  
  Antonio Pinto Renedo
  
  
  
  
  
  © Author, layout and cover design:
  
  
  Antonio Pinto Renedo
  
  
  
  
  
  Published in July 2011
  
  
  Revised in 2019
  
  
  
  
  
  
  
  
  
  
  
  INDEX
  
  
  
  
  
  CHAPTER 1 - PROGRESS OF CITIES
  
  
  The first cities
  
  
  Classical city
  
  
  The cities dome
  
  
  Compact cities
  
  
  
  
  
  CHAPTER 2 - CRAFT
  
  
  Craft VDV
  
  
  Craft depot majority
  
  
  Floating craft
  
  
  Launchpads
  
  
  Laser craft
  
  
  
  
  
  CHAPTER 3 - SPACE CITIES
  
  
  Integrated system centrifugal
  
  
  Rotary lifts
  
  
  Small craft
  
  
  Magnetic gravity
  
  
  Spatial rings
  
  
  Advantages of living space or Earth
  
  
  
  
  
  CHAPTER 4 - HABITS IN THE FUTURE
  
  
  Energy
  
  
  Costume single piece
  
  
  Discarded options
  
  
  The job
  
  
  The companies
  
  
  Unions and strikes
  
  
  Governance
  
  
  Health and nutrition
  
  
  The judicial system
  
  
  Weapons
  
  
  
  
  
  CHAPTER 5 - SOME METAFÍSICA
  
  
  The origin of the cosmos
  
  
  The solar system training
  
  
  Biological evolution
  
  
  Competition among animals
  
  
  The evolution of the stars
  
  
  Super galaxias
  
  
  Colors of numbers
  
  
  Scienti