Activity for Shadow1024
| Type | On... | Excerpt | Status | Date |
|---|---|---|---|---|
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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 flat surfaces, suitable for big cities. So the idea is to create proper flat surfaces by blowing up mount... (more) |
— | about 5 years ago |
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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 higher oxygen content, and much higher nitrogen tech level similar to contemporary rugged, simple, inexp... (more) |
— | over 5 years ago |
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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 such atmosphere counts as breathable, sort of. On the other hand atmosphere that we have on Earth at altit... (more) |
— | over 5 years ago |
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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 early 21st century equivalent. Extra issues: No legacy issues, infrastructure and settlements are built... (more) |
— | almost 6 years ago |
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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 is its hydrosphere. Over 90% of planet surface is water (or ice). It's rather cold tidally locked planet... (more) |
— | almost 6 years ago |
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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 with hundreds kilometre ocean deep) seem to be quite common type of planets. So at least in theory if ... (more) |
— | almost 6 years ago |
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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 supposed to be highly efficient. Nevertheless, the city is built from scratch with heavy inspiration from ... (more) |
— | over 7 years ago |
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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, main cities and nearby areas with local mobile phone towers equivalent and connecting them with optical fi... (more) |
— | over 7 years ago |
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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 fuel by going along a jetstream. Realistically that mechanism should also work there. The question is w... (more) |
— | over 7 years ago |
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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 accessible fossil fuels. In order to avoid a situation where algae produced oxygen from carbon dioxide, ... (more) |
— | over 7 years ago |
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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 tram there is a bit more space because driver lost his job. Simple, problem solved. Later, I started to... (more) |
— | over 7 years ago |
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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 - superior octane ranting (109), do not boils easily (60C). Anyway, it has one very serious drawback - low energy... (more) |
— | almost 8 years ago |
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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 known assisted reproductive technology. No problem in hiring surrogate mothers. Limits issued by local ... (more) |
— | almost 8 years ago |
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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, saves me from problem of stellar evolution and shifting habitable zones. 1) I should give it less fissile ... (more) |
— | almost 8 years ago |
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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 near river, on some roughly flat, semi desert. (just boring terrain) Roughly counting 25% of labour for... (more) |
— | almost 8 years ago |
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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/tmerlis/coupledtidallylocked.html) tend to predict permanent hurricane-like weather near the substellar po... (more) |
— | about 8 years ago |
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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 this (but a few sizes bigger, the one on the photo is barely 860m long ;) ) be used to separate industrial... (more) |
— | about 8 years ago |
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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 freezing point would remain very close to 0°C. Would it affect evaporation rate under more normal conditions... (more) |
— | about 8 years ago |
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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 arbitrary choices. I'm impressed by the Japanese who are able to keep two frequencies in one country. The q... (more) |
— | about 8 years ago |
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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 city involving hospitals, prison, gov offices, swimming pools, museums, storage facilities, social housing... (more) |
— | about 8 years ago |
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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 while ago its great oxygenation event, has practically no easily accessible (by standards of early XXIst c... (more) |
— | about 8 years ago |
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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 simplicity reasons, I assume that humans are able to adjust to that pressure, it is generally below the amount th... (more) |
— | about 8 years ago |