Gas giant atmospheres - Revision history

Apm: /* Material resources */ added notes on material export into space.

2017-09-26T09:27:14Z

Material resources: added notes on material export into space.

← Older revision		Revision as of 11:27, 26 September 2017
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	Gas giants are nice for APM since the '''resource molecules come in a nice standard form''' CH<sub>4</sub>, NH<sub>3</sub>, H<sub>2</sub>O, ...		Gas giants are nice for APM since the '''resource molecules come in a nice standard form''' CH<sub>4</sub>, NH<sub>3</sub>, H<sub>2</sub>O, ...

			Due to the gas giants very deep gravity wells there is little motivation to move any material out into space (by whatever non-chemical means).
			One exception could perhaps be Helium3 (if Helium3 fusion gets adopted) since "fusion product speeds" far exceed exceeds escape velocities of all the non-exotic celestial objects that can be found in our solar system. A competing alternative for energy export is performing fusion on the gas giant's "surfaces" and sending it out with EM waves (e.g. lasers with short wavelength that is not yet ionizing => blue).

	== Human habitation ==		== Human habitation ==

2017-09-26T09:07:12Z

Human habitation: corrected wrong surface acceleration

← Older revision		Revision as of 11:07, 26 September 2017
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	== Human habitation ==		== Human habitation ==

	Beside Jupiter with its very high gravitational acceleration ~~~10g~~, [[radiation damage\|high radiation]] planet-moon systems and asteroid sucking tendency.		Beside Jupiter with its very high gravitational acceleration ~2.5g, [[radiation damage\|high radiation]] planet-moon systems and asteroid sucking tendency.
	Gas-giants actually and surprisingly would provide a rather nice place to live		Gas-giants actually and surprisingly would provide a rather nice place to live
	since the gravity of Saturn Uranus and Neptune is near 1g and the atmospheres nicely shield radiation.		since the gravity of Saturn Uranus and Neptune is near 1g and the atmospheres nicely shield radiation.

2016-12-03T17:59:13Z

Related: improved terminology

← Older revision		Revision as of 19:59, 3 December 2016
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	== Related ==		== Related ==

	* [[~~Air using micro ships~~]]		* [[Mobile carbon dioxide collector balloon]]
	* [[Venus]]		* [[Venus]]

	[[Category:Technology level III]]		[[Category:Technology level III]]
	[[Category:Disquisition]]		[[Category:Disquisition]]

2016-11-23T09:12:42Z

Nuclear: added hypothetical nuclear aeroplane gas giant sinking question

← Older revision		Revision as of 11:12, 23 November 2016
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	Their atmospheres are essentially fuel-pools.		Their atmospheres are essentially fuel-pools.

	There are no heavy elements in the atmosphere for nuclear fission but nuclear fission powered spacecraft (once in use) could potentially to "land" into gas giant atmospheres.		There are no heavy elements in the atmosphere for nuclear fission but nuclear fission powered spacecraft (once in use) could potentially "land" into gas giant atmospheres thereby becoming nuclear fission aeroplanes. {{todo\|Look at the hypothetical question: Do all the heavy radioactive elements sink when such a nuclear fission aeroplane sinks and evaporates in the depths of a gas giant? Or would that cause longer term pollution?}}

	=== Related ===		=== Related ===

2016-11-23T09:03:57Z

Energy: elaborated on geothermal energy and added a bit about wind and solar energy + reordering

@@ Line 38: / Line 38: @@
 == Energy ==
 Solar energy is weak so far out in the solar system and only useful for very low power applications.
-The easiest accessible source of energy in gas giants is '''geothermal heat'''.
+There are no heavy elements in the atmosphere for nuclear fission but nuclear fission powered spacecraft (once in use) could potentially to "land" into gas giant atmospheres.
-[[nuclear fusion|fusion power]] is the choice for high power and long term energy supply
+=== Related ===
 * Wikipedia [http://en.wikipedia.org/wiki/Lapse_rate lapse rate]
 * [http://farside.ph.utexas.edu/teaching/sm1/lectures/node56.html adiabatic atmosphere] in contrast to ...

2016-11-23T08:16:52Z

Corrected surface gravity of Jupiter from wrong 10g to correct 2.5g

← Older revision		Revision as of 10:16, 23 November 2016
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	{{speculative}}		{{speculative}}
	[[File:Gas_Giants_&_The_Sun_downsized.jpg\|550px\|thumb\|right\| Most gas giants would be suitable for permanently flying habitats because of nice 1g of gravity (the exception is Jupiter with crunching ~~10g~~). Most problematic are the extremely deep potential wells making space-travel away from the "surface" impossible (at least with current technology). Shock-waves form frequent asteroid impacts are a major concern too. Gas giants would provide massively more surface area than the rocky planets but still massively less than the sum of all the asteroids.]]		[[File:Gas_Giants_&_The_Sun_downsized.jpg\|550px\|thumb\|right\| Most gas giants would be suitable for permanently flying habitats because of nice 1g of gravity (the exception is Jupiter with crunching 2.5g "surface" gravity). Most problematic are the extremely deep potential wells making space-travel away from the "surface" impossible (at least with current technology). Shock-waves form frequent asteroid impacts are a major concern too. Gas giants would provide massively more surface area than the rocky planets but still massively less than the sum of all the asteroids.]]
	More general: [[Colonisation of the solar system]]		More general: [[Colonisation of the solar system]]
	----		----

2016-02-07T09:39:31Z

← Older revision		Revision as of 11:39, 7 February 2016
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	More general: [[Colonisation of the solar system]]		More general: [[Colonisation of the solar system]]
	----		----
	APM will probably enable regular [[interplanetary spaceflight]] thus the gas ~~giants~~ will become rather accessible.		APM will probably enable regular [[interplanetary spaceflight]] thus the gas giant systems will become rather accessible.

	== Lift ==		== Lift ==

2016-02-07T09:29:48Z

saturns rings

@@ Line 89: / Line 89: @@
 The [http://en.wikipedia.org/wiki/Lakes_of_Titan hydrocarbon lakes] contain vast amounts of building material greatly exceeding earths hydrocarbon resources.
 Related [[water ice]] as building material.
 == Related ==

2016-02-07T09:06:23Z

added image with notes

← Older revision		Revision as of 11:06, 7 February 2016
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	{{speculative}}		{{speculative}}
			[[File:Gas_Giants_&_The_Sun_downsized.jpg\|550px\|thumb\|right\| Most gas giants would be suitable for permanently flying habitats because of nice 1g of gravity (the exception is Jupiter with crunching 10g). Most problematic are the extremely deep potential wells making space-travel away from the "surface" impossible (at least with current technology). Shock-waves form frequent asteroid impacts are a major concern too. Gas giants would provide massively more surface area than the rocky planets but still massively less than the sum of all the asteroids.]]
	More general: [[Colonisation of the solar system]]		More general: [[Colonisation of the solar system]]
	----		----

2015-07-15T13:40:19Z

← Older revision		Revision as of 15:40, 15 July 2015
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	{{speculative}}		{{speculative}}
			More general: [[Colonisation of the solar system]]
			----
	APM will probably enable regular [[interplanetary spaceflight]] thus the gas giants will become rather accessible.		APM will probably enable regular [[interplanetary spaceflight]] thus the gas giants will become rather accessible.