Dome - Revision history

Michel Lamontagne at 17:48, 5 August 2019

2019-08-05T17:48:52Z

Michel Lamontagne at 17:47, 5 August 2019

2019-08-05T17:47:51Z

Michel Lamontagne at 17:45, 5 August 2019

2019-08-05T17:45:01Z

Michel Lamontagne at 17:44, 5 August 2019

2019-08-05T17:44:08Z

Michel Lamontagne at 01:13, 13 June 2019

2019-06-13T01:13:43Z

Michel Lamontagne at 01:11, 13 June 2019

2019-06-13T01:11:50Z

Michel Lamontagne at 01:05, 13 June 2019

2019-06-13T01:05:00Z

Michel Lamontagne at 00:50, 13 June 2019

2019-06-13T00:50:50Z

Michel Lamontagne: Created page with "Geodesic domes on mars are a staple of the Mars settlement imagery. There can hardly be an image of a Mars settlement without a dome in in, separating a green interior from t..."

2019-06-13T00:40:57Z

Created page with "Geodesic domes on mars are a staple of the Mars settlement imagery. There can hardly be an image of a Mars settlement without a dome in in, separating a green interior from t..."

New page

Geodesic domes on mars are a staple of the Mars settlement imagery.

There can hardly be an image of a Mars settlement without a dome in in, separating a green interior from the bleak red surface of Mars.

@@ Line 6: / Line 6: @@
 Domes on Mars need to be anchored against the internal air pressure.  At ten tonnes per m2, large domes exert tremendous vertical pressure on the point where the dome meets the ground.
-The vertical force is equal to the dome area above the ground.  As a 100m dome covers about 7 800 m2, the vertical force for such a dome will be 78 000 tonnes of force.
+The vertical force is equal to the dome area above the ground.  As a 100m dome covers about 7 800 m2, the vertical force for such a dome will be 78 000 tonnes of force, or about 250 tonnes per meter of perimeter wall.
 [[Glass]] and [[Metallurgy|metal]] domes are also rather poor for radiation protection.  However, they might be excellent parks and leisure areas.  Many authors have proposed ice domes, that offset the vertical force from the air pressure by the mass of the ice, with the added benefit that thick ice is an excellent radiation shielding material. NASA Langley has conducted research on the subject<ref>https://www.nasa.gov/feature/langley/a-new-home-on-mars-nasa-langley-s-icy-concept-for-living-on-the-red-planet</ref>.  NASA has also sponsored 3D printing contests in which some proposals have used ice for construction<ref>http://www.marsicehouse.com/habitat</ref>.

@@ Line 6: / Line 6: @@
 Domes on Mars need to be anchored against the internal air pressure.  At ten tonnes per m2, large domes exert tremendous vertical pressure on the point where the dome meets the ground.
-The vertical force is equal to the dome area above the ground.  So a 100m dome covers 50x50xpi()m2=7853m2.  The vertical force for such a dome will be 78 000 tonnes.
+The vertical force is equal to the dome area above the ground.  As a 100m dome covers about 7 800 m2, the vertical force for such a dome will be 78 000 tonnes of force.
 [[Glass]] and [[Metallurgy|metal]] domes are also rather poor for radiation protection.  However, they might be excellent parks and leisure areas.  Many authors have proposed ice domes, that offset the vertical force from the air pressure by the mass of the ice, with the added benefit that thick ice is an excellent radiation shielding material. NASA Langley has conducted research on the subject<ref>https://www.nasa.gov/feature/langley/a-new-home-on-mars-nasa-langley-s-icy-concept-for-living-on-the-red-planet</ref>.  NASA has also sponsored 3D printing contests in which some proposals have used ice for construction<ref>http://www.marsicehouse.com/habitat</ref>.
 The Ice house won the competition in 2015.  The ice shell surrounds a lander and protects it from radiation, while providing an extension of the original vehicles living space.  However the ice is not used as a pressure vessel, but as a [[Radiation shielding|radiation shield]].

@@ Line 2: / Line 2: @@
 Geodesic domes on mars are a staple of the [[Settlement|Mars settlement]] imagery.
-There can hardly be an image of a Mars settlement without a dome in in, separating a green interior from the bleak red surface of Mars.
+There can hardly be an image of a Mars settlement without a dome in it, separating a green interior from the bleak red surface of Mars.
 Domes on Mars need to be anchored against the internal air pressure.  At ten tonnes per m2, large domes exert tremendous vertical pressure on the point where the dome meets the ground.

@@ Line 1: / Line 1: @@
 [[File:Small colony trees3b.jpg|thumb|600x600px|Large domed habitat.  Any number of designs are possible, but designs need to take into account the larges forces created by the air pressure in the dome.]]
-Geodesic domes on mars are a staple of the Mars settlement imagery.
+Geodesic domes on mars are a staple of the [[Settlement|Mars settlement]] imagery.
 There can hardly be an image of a Mars settlement without a dome in in, separating a green interior from the bleak red surface of Mars.
@@ Line 8: / Line 8: @@
 The vertical force is equal to the dome area above the ground.  So a 100m dome covers 50x50xpi()m2=7853m2.  The vertical force for such a dome will be 78 000 tonnes.
-Glass and metal domes are also rather poor for radiation protection.  However, they might be excellent parks and leisure areas.  Many authors have proposed ice domes, that offset the vertical force from the air pressure by the mass of the ice, with the added benefit that thick ice is an excellent radiation shielding material. NASA Langley has conducted research on the subject<ref>https://www.nasa.gov/feature/langley/a-new-home-on-mars-nasa-langley-s-icy-concept-for-living-on-the-red-planet</ref>.  NASA has also sponsored 3D printing contests in which some proposals have used ice for construction<ref>http://www.marsicehouse.com/habitat</ref>.
+[[Glass]] and [[Metallurgy|metal]] domes are also rather poor for radiation protection.  However, they might be excellent parks and leisure areas.  Many authors have proposed ice domes, that offset the vertical force from the air pressure by the mass of the ice, with the added benefit that thick ice is an excellent radiation shielding material. NASA Langley has conducted research on the subject<ref>https://www.nasa.gov/feature/langley/a-new-home-on-mars-nasa-langley-s-icy-concept-for-living-on-the-red-planet</ref>.  NASA has also sponsored 3D printing contests in which some proposals have used ice for construction<ref>http://www.marsicehouse.com/habitat</ref>.
-The Ice house won the competition in 2015.  The ice shell surrounds a lander and protects it from radiation, while providing an extension of the original vehicles living space.
+The Ice house won the competition in 2015.  The ice shell surrounds a lander and protects it from radiation, while providing an extension of the original vehicles living space.  However the ice is not used as a pressure vessel, but as a [[Radiation shielding|radiation shield]].
 [[File:Mars-Ice-House Dusk+01 lr.jpg|left|thumb|600x600px|Mars ice house. Winner of the 2015 NASA 3D printing competition.  Image by Clouds AO.]]
 ===References===
 <references />

@@ Line 9: / Line 9: @@
 Glass and metal domes are also rather poor for radiation protection.  However, they might be excellent parks and leisure areas.  Many authors have proposed ice domes, that offset the vertical force from the air pressure by the mass of the ice, with the added benefit that thick ice is an excellent radiation shielding material. NASA Langley has conducted research on the subject<ref>https://www.nasa.gov/feature/langley/a-new-home-on-mars-nasa-langley-s-icy-concept-for-living-on-the-red-planet</ref>.  NASA has also sponsored 3D printing contests in which some proposals have used ice for construction<ref>http://www.marsicehouse.com/habitat</ref>.
 [[File:Mars-Ice-House Dusk+01 lr.jpg|left|thumb|600x600px|Mars ice house. Winner of the 2015 NASA 3D printing competition.  Image by Clouds AO.]]
-=== References ===
+===References===
 <references />

← Older revision		Revision as of 00:50, 13 June 2019
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		+	[[File:Small colony trees3b.jpg\|thumb\|600x600px\|Large domed habitat]]
	Geodesic domes on mars are a staple of the Mars settlement imagery.		Geodesic domes on mars are a staple of the Mars settlement imagery.

	There can hardly be an image of a Mars settlement without a dome in in, separating a green interior from the bleak red surface of Mars.		There can hardly be an image of a Mars settlement without a dome in in, separating a green interior from the bleak red surface of Mars.