08-13-2022, 07:57 AM | #61 | |
Join Date: Jun 2013
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Re: [Spaceships] Million Merchant Marathon
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Although I do wonder how Venus would appear in Earth's night sky with such a large, high-albedo "structure" up in its orbit. How bright would that be? Depending on what the minimum efficient size is for these reactionless drives, simply having several dozen small ones spread out over the inner surface may be ideal.
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GURPS Overhaul |
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08-13-2022, 11:01 AM | #62 |
Join Date: Feb 2005
Location: Berkeley, CA
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Re: [Spaceships] Million Merchant Marathon
Depends how efficient it is. If all you're stopping is light that would have otherwise hit Venus anyway, any increase in brightness because of the structure would be paired with an equivalent reduction in brightness of Venus itself, so all that matters is the albedo of the structure as compared to the (already quite high) albedo of Venus.
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08-13-2022, 04:04 PM | #63 |
Join Date: Feb 2008
Location: The Athens of America
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Re: [Spaceships] Million Merchant Marathon
What makes you think it would go that well?
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My center is giving way, my right is in retreat; situation excellent. I shall attack.-Foch America is not perfect, but I will hold her hand until she gets well.-unk Tuskegee Airman |
08-13-2022, 04:35 PM | #64 |
Join Date: Mar 2013
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Re: [Spaceships] Million Merchant Marathon
Agreed. They have to experiment with terraforming anyway. It should be much easier to terraform the planet we have!
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A little learning is a dangerous thing. Warning: Invertebrate Punnster - Spinelessly Unable to Resist a Pun Dangerous Thoughts, my blog about GURPS and life. |
08-13-2022, 04:37 PM | #65 |
Join Date: Mar 2013
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Re: [Spaceships] Million Merchant Marathon
The problem is that all machinery (that we have built so far) requires preventive maintenance. Take things down when there is no window.
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A little learning is a dangerous thing. Warning: Invertebrate Punnster - Spinelessly Unable to Resist a Pun Dangerous Thoughts, my blog about GURPS and life. |
08-13-2022, 04:45 PM | #66 | |
Join Date: Mar 2013
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Re: [Spaceships] Million Merchant Marathon
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And is it cheaper to reuse these cargo pods at their destination than by sending them back? If I had to put drives on those things it would be a very small and very low-thrust device. Or perhaps just a self-destruct (assuming you could design one that was fail safe).
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A little learning is a dangerous thing. Warning: Invertebrate Punnster - Spinelessly Unable to Resist a Pun Dangerous Thoughts, my blog about GURPS and life. |
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08-13-2022, 06:44 PM | #67 | ||||
Join Date: Mar 2013
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Re: [Spaceships] Million Merchant Marathon
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Getting toxic chemicals out of soil is different then giving something an atmosphere or giving it soil at all. |
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08-13-2022, 07:23 PM | #68 | |
Join Date: Aug 2007
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Re: [Spaceships] Million Merchant Marathon
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The lightest structure for large sizes (like a mile or even kilometer across) will be a spider web of buckytube cables with a thin layer of either reflective or photovoltaic material transferring its' weight to the cable structure. For strength and stabiility you "anchor" those loadbearing cables to thrust units at the cables' ends. Putting thrust units in the middle doesn't help.
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08-13-2022, 08:56 PM | #69 | |
Join Date: May 2005
Location: Oz
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Re: [Spaceships] Million Merchant Marathon
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I weighed a roll of aluminium foil in my kitchen. Net of the box and the cardboard core it's rolled up on, a 30 m by 30 cm roll (9 square metres) massed 343 g. That is 0.038 kg per square metre. 38 tonnes per square kilometre.
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Decay is inherent in all composite things. Nod head. Get treat. Last edited by Agemegos; 08-13-2022 at 09:10 PM. |
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08-14-2022, 12:26 AM | #70 | ||
Join Date: Mar 2013
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Re: [Spaceships] Million Merchant Marathon
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spaceships, terraforming |
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