Cities of the Future

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Dyson Sphere - A spherical shell constructed around a sun to provide the
   maximum interior surface area, for habitation, and energy, named after Freeman
   Dyson who orriginaly proposed that a space civilization could encircle their sun
   with solar collectors, for maximum energy, later this evolved to the idea of a
   complete shell, or Dyson Sphere, although he admits to have borrowed the
   concept from Olaf Stapledon's novel Star Maker (1937).

• Dyson Sphere FAQ
• Dyson Sphere

Ring World - An alternative design to the Dyson sphere as a ring.
   Regarded as unstable.

• Ringworld

Space Colonies

• NASA's Space Settlement information page
• The Living Universe Foundation (The Millennial Foundation)
• Distant Star is the E-Zine for the Living Universe Foundation (Millennial Foundation)
• Artemis Project - wants to build a lunar community
• PERMANENT (Projects to Employ Resources of the Moon and Asteroids
  Near Earth in the Near Term)
• The Mars Society - Mars Exploration
• Luner Institute of Technology - space and ocean development and exploration

Earth Cities

• Victory city
• Oceania An ocean based city
• The Celestopea Project - floating ocean cities

Biosphere 2 was an experiment   to create a closed ecosystem   with humans, animals, and   plants. It was bought in   1996 by columbia university. Biospherics Biosphere 2 Center Home Page

EPCOT Tour EPCOT future world The official EPCOT guide

misc.

• Air Pollution on the Moon
• Notes on SeaSteading