Editing Paraterraforming and Domed World-Building (section)

== <span style="color: #FFFFFF;">Understanding</span> ==
Paraterraforming is understood through '''Containment''' and '''Simulation'''.

'''1. The "Bubble" Strategy (Containment)''':
"Easier than changing a Planet."
* (See Article 716). "Full Terraforming" of "Mars" "Takes" **"Thousands of Years."**
* **Paraterraforming** a "Martian Crater" with a "Dome" "Takes" **"Decades."**
* "The Inside" "Provides" "Earth-like Pressure," "Temperature," and "Atmosphere" **"Immediately."**
* "The Planet Outside" "Remains Unchanged."
* "Safety" is **"A Dome."**

'''2. The "Gravity" Trick (Rotation)''':
"Centrifugal force feels like Weight."
* (See Article 717). "Long-Duration" "Weightlessness" **"Destroys"** "Human Bone," "Muscle," and "Cardiovascular Health."
* **"Rotating Habitats"** "Provide" **"Artificial Gravity"** by "Making" "Objects" "Press" "Against" the "Outer Wall."
* A **Cylinder** "Rotating" at the "Right Speed" "Feels" "Exactly Like" "Standing" on "Earth's Surface."
* "Gravity" is **"A Spin."**

'''3. The "Living" Interior (Ecology)''':
"A world in miniature."
* (See Article 718). **O'Neill Cylinders** "Are" "Large Enough" to "Have" "Their Own Weather" — "Clouds," "Rain," "Wind."
* "They Can" "Support" "Agriculture," "Forests," and "Cities."
* "The 'Sky'" "Is" the "Opposite Wall" of the "Cylinder" — "Looking Up" means "Seeing" the "City" above you.
* "Home" is **"A Pocket Universe."**

'''The 'Island One' Design (1976)'''': (Gerard K. O'Neill). "A Detailed" "Engineering Blueprint" for a "Space Habitat" "Built" "From" **"Asteroid Materials"** (see Article 688). It proved that "Large-Scale" "Off-World Habitation" is **"Physically Feasible"** using "Known Engineering."
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