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Posts by Shadow1024‭

22 posts
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Q&A Could self-driving light rail/subway/tram trains be much shorter (fewer cars) than systems where trains need drivers?

Tech level: more or less contemporary, no tech that would put you in awe. I'm trying to make realistic, driverless, mass-transit system. The first idea was that "driverless" implies that in each ...

5 answers  ·  posted 8y ago by Shadow1024‭  ·  last activity 8y ago by Shadow1024‭

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Q&A How would mountainous landscape look like after remodelling it with nuclear warheads?

As conclusion of this question it seems that under a dense atmosphere it would be a good idea to place the main city in mountains. Just there is the inconvenient issue that top of mountains lack fl...

2 answers  ·  posted 5y ago by Shadow1024‭  ·  last activity 5y ago by Shadow1024‭

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Q&A Designing rugged bush plane to work on a planet with 3 atmosphere pressure

For practical purposes I think about something in line of Cessna 172. As it was the most produced aircraft, then it must have hit some sweet spot or be near it. atmosphere with barely noticeably ...

2 answers  ·  posted 5y ago by Shadow1024‭  ·  last activity 5y ago by Shadow1024‭

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Q&A Would it be worthwhile to locate capital in high mountains on an exoplanet with higher atmospheric pressure?

Tech level: modern - like Atmospheric pressure at local sea level: Oxygen ~30 kPa Nitrogen ~180 kPa (So roughly counting 1.5 times more oxygen, 2.25 times more nitrogen) Technically speaking ...

1 answer  ·  posted 6y ago by Shadow1024‭  ·  last activity 6y ago by Shadow1024‭

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Q&A How to design an electrical grid for a flare star planet?

The most popular type of stars are red dwarves, which regrettably tend to be flare stars. Yes, I know that geomagnetic storms and power lines do not like each other. Technology level: More or less...

2 answers  ·  posted 6y ago by Shadow1024‭  ·  last activity 6y ago by Shadow1024‭

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Q&A Maximum realistic salinity level with thriving aquatic environment?

I'm trying to create a planet which environment is not immediately lethal to humans, (reasonable oxygen level) however after closer inspection turns out not to be specially Earth-like. One issues ...

2 answers  ·  posted 6y ago by Shadow1024‭  ·  last activity 6y ago by Shadow1024‭

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Q&A Which unique features should have a habitable planet originating from atmosphere stripped waterworld?

Premises: red dwarfs tend to have violent sun storms in their early years, thus are expected to strip atmosphere of planets that may be in their habitable zones; water worlds (including planets w...

2 answers  ·  posted 6y ago by Shadow1024‭  ·  last activity 6y ago by Shadow1024‭

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Q&A How to calculate maximum altitude difference between metro stations?

For story purpose I am trying to design a mass transit system for a perfect city. Right ... maybe not so perfect, if you look carefully into the details, but actually the mass transit system is sup...

2 answers  ·  posted 7y ago by Shadow1024‭  ·  last activity 7y ago by Shadow1024‭

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Q&A Mobile phone with tower independent long distance communication features

Tech level: more or less comparable to contemporary. Location: forsaken, habitable planet with population of approximately 10-20 milion. Wealth level: first world equivalent Covering capital, ma...

6 answers  ·  posted 7y ago by Shadow1024‭  ·  last activity 7y ago by Shadow1024‭

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Q&A Air routes around a "hurricane eye" on a tidally locked planet

On a tidally locked Earth-like planet a big part of long distance air routes would have to approach the hurricane eye and some may even benefit from it. On Earth aircraft are able to save time and...

2 answers  ·  posted 7y ago by Shadow1024‭  ·  last activity 7y ago by Shadow1024‭

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Q&A Swapping the sunny side of tidally locked planet

For story reasons I need a situation with a planet around red dwarf, which already has had the equivalent of a Great Oxygenation Event. Simultaneously I also like the planet to be mostly without ac...

3 answers  ·  posted 7y ago by Shadow1024‭  ·  last activity 7y ago by Shadow1024‭

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Q&A Consequences of Earth-like planet with denser atmosphere

Assumptions - atmospheric pressure is 3 atm, but partial pressure of oxygen is comparable to earth, the rest is mostly nitrogen. Planet is tidally locked and insignificantly heavier. (for simplicit...

2 answers  ·  posted 8y ago by Shadow1024‭  ·  last activity 5y ago by Shadow1024‭

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Q&A What would be a super fuel for methanol fuel dominating setting?

Tech level - comparable to contemporary; no fossil fuels, all fuel has to be produced synthetically, as simplest to produce (and store!!!) was selected methanol. Theoretically quite good - superio...

2 answers  ·  posted 8y ago by Shadow1024‭  ·  last activity 8y ago by Shadow1024‭

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Q&A How short can be time between subsequent generations in a human selective breeding program?

Current technological level. (in the setting there is an awful tech stagnation, so waiting for better DNA engineering technology is considered as waste of time) Possibility to use all contemporary ...

2 answers  ·  posted 8y ago by Shadow1024‭  ·  last activity 8y ago by Shadow1024‭

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Q&A What should be adjusted for old Earth-like planet?

For story reasons, I'd like one planet habitable, plausible, but in some noticeable way older than Earth. Just not all planets are 4,5 bilion years. Tidally locked planet that orbit red dwarf, save...

1 answer  ·  posted 8y ago by Shadow1024‭  ·  last activity 8y ago by Shadow1024‭

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Q&A How closely should be placed industrial centre / NIMBY from urban centre?

I'm trying to design a realistically looking capitol (with a few milion people) for one human nation on an exoplanet. The technology level is barely better than contemporary. The city is placed ...

3 answers  ·  posted 8y ago by Shadow1024‭  ·  last activity 7y ago by Shadow1024‭

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Q&A What should a container ship look like, that easily cruises through hurricane?

Technology: Comparable to early XXIst century, except self-driving vehicles are already available. On a tidally locked planet most of the models that I can found (ex. http://www.meteo.mcgill.ca/~t...

4 answers  ·  posted 8y ago by Shadow1024‭  ·  last activity 8y ago by Shadow1024‭

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Q&A Could a long skyscraper be used to limit amount of pollution coming from industrial district?

On the picture there is a building that slightly inspired me and convinced me that building like this indeed could be built in RL. However I have the following question. Could a building like th...

2 answers  ·  posted 8y ago by Shadow1024‭  ·  last activity 8y ago by Shadow1024‭

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Q&A How would higher atmospheric pressure on an Earth-like planet affect rainfall?

Earth like planet has 3 atm pressure at it sea level. How would it affect its rainfall system? 1) Using internet calculator I got a result that boiling point for water would be 131°C, while freez...

1 answer  ·  posted 8y ago by Shadow1024‭  ·  last activity 8y ago by Shadow1024‭

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Q&A Which voltage and frequency would be selected if there were no legacy issues?

Which voltage and frequency would be selected if there were no legacy issues? I can easily find how selection of electricity frequency and voltage was based on backward compatibility and quite arb...

2 answers  ·  posted 8y ago by Shadow1024‭  ·  last activity 8y ago by Shadow1024‭

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Q&A Mine easily turned into underground nuclear shelter / city

For story reasons I'd like to have a mine which exploited part was turned in to a nuclear shelter, for the city built above. Later, the nuclear shelter was utilized effectively as an district of ci...

3 answers  ·  posted 8y ago by Shadow1024‭  ·  last activity 8y ago by Shadow1024‭

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Q&A How to explain lack of fosil fuels on an Earth-like exoplanet?

Planet - habitable, tidally locked planet orbitting red dwarf. Aim: a realistic answer (neither involving handwavium nor aliens that used it all) why a virgin planet that already experienced a wh...

6 answers  ·  posted 8y ago by Shadow1024‭  ·  last activity 7y ago by Shadow1024‭