https://scientific-speculation.codidact.com/categories/15/tags/2231.rssNew Posts Tagged 'gas' - Scientific SpeculationScientific Speculation - Codidact2020-05-30T19:21:27Zhttps://scientific-speculation.codidact.com/posts/263319Water & Nutrient Cycle of an upside down forestNosajimiki - Reinstate Monicahttps://scientific-speculation.codidact.com/users/431722020-05-22T05:15:22Z2020-05-30T19:21:27Z<p>This is a follow up question to <a href="https://worldbuilding.stackexchange.com/questions/176419/sky-of-earth-and-seas-of-sky">Sky of Earth and Seas of Sky</a></p>
<p>I have a medieval fantasy...https://scientific-speculation.codidact.com/posts/263379Could a galaxy of Nicoll-Dyson beams hit a single target?RandySavagehttps://scientific-speculation.codidact.com/users/443002020-05-24T16:02:54Z2020-05-25T04:38:23Z<p>This was an idea for a flashback as I pick up my story around 100 trillions years from now at the point where star formation is ceasing and the red dwarf and stellar remnant era begins. Now livi...https://scientific-speculation.codidact.com/posts/263343Properties of an Argon based gas giantRMurphy-Keithhttps://scientific-speculation.codidact.com/users/420442020-05-23T00:23:43Z2020-05-23T02:02:10Z<p>I am writing a novel where a habitable moon orbits a purple gas giant. In looking here and elsewhere I'm finding it incredibly hard to get a sense of the elements-breakdown of elements that woul...https://scientific-speculation.codidact.com/posts/262660Is it possible for a moon to stay on the same side of its planet relative to the sun?LonelyCryptidhttps://scientific-speculation.codidact.com/users/448192020-04-25T15:16:24Z2020-05-11T04:47:30Z<p>I'm building an earthlike world that has a moon orbiting a gas giant. Is it possible for the moon to always be between the planet and the sun? Also, is it possible for a moon to rotate around it...https://scientific-speculation.codidact.com/posts/262720What is the best form of powered vehicular flight within a McKendree habitat?rekhttps://scientific-speculation.codidact.com/users/393112020-04-27T18:11:44Z2020-05-10T16:43:32Z<h2>Background</h2>
<p>A <a href="https://en.wikipedia.org/wiki/McKendree_cylinder" rel="nofollow noreferrer">McKendree cylinder</a> is a spinning space habitat in the style of an <a href="https:/...https://scientific-speculation.codidact.com/posts/262883Where to place an artificial oceanic island?SilverCookieshttps://scientific-speculation.codidact.com/users/387552020-05-05T10:42:49Z2020-05-05T12:13:36Z<p>I want to build a seastead in international waters that starts small. It has to be in the Atlantic, preferably in the northern hemisphere close to either the american or european continent. </p>...https://scientific-speculation.codidact.com/posts/262773What percentage of stars would need to become Shkadov thrusters to move the whole galaxy?RandySavagehttps://scientific-speculation.codidact.com/users/443002020-04-30T14:29:43Z2020-05-01T04:26:04Z<p>The advanced civilization in my story is trying to reach as many galaxies as possible in the next few billions years before the expansion of space has sent those galaxies permanently out of reac...https://scientific-speculation.codidact.com/posts/262620Meteorological consequences of walls reaching into the sky, enclosing a large areaMark Gardnerhttps://scientific-speculation.codidact.com/users/398612020-04-24T11:30:14Z2020-04-24T19:46:11Z<p>Suppose we walled off a 1000 km square. These walls would be made of unobtanium (so they don't break), and have no cracks or holes that go all the way through. They are also around 15 kilometres...https://scientific-speculation.codidact.com/posts/274130Calculating average sea-level air pressureLevhttps://scientific-speculation.codidact.com/users/446552020-03-03T22:54:47Z2020-04-19T00:48:59Z<p>Right now I'm currently trying to calculate the average surface pressure at sea level of an atmosphere, but I'm having a struggle finding the relevant formulae with which to determine this numbe...https://scientific-speculation.codidact.com/posts/260973Are Orbital Rings feasible to construct in another star system?user72655https://scientific-speculation.codidact.com/users/446382020-02-29T02:45:26Z2020-02-29T22:57:39Z<p>In this universe, Earth had a couple orbital rings during the construction of the colony ships that were sent to Alpha Centauri. Humanity has achieved fusion power and efficient space flight (1g...https://scientific-speculation.codidact.com/posts/260574Navigating a sea of sulfur hexafluorideKeizerHarmhttps://scientific-speculation.codidact.com/users/64482020-02-18T15:54:05Z2020-02-18T17:55:02Z<p>Sulfur hexafluoride is <a href="https://www.youtube.com/watch?v=u19QfJWI1oQ" rel="nofollow noreferrer">pretty awesome</a>. It is a gas six times denser than regular air, and thus you can actuall...https://scientific-speculation.codidact.com/posts/260225How to allow a cylindrical habitat (O'Neill or McKendree) to radiate heat to space?Abanob Ebrahimhttps://scientific-speculation.codidact.com/users/438312020-02-06T21:10:00Z2020-02-09T17:58:01Z<h1>Background</h1>
<p>I am trying to find a design for a cylindrical habitat that would allow the enclosed cylinder to radiate heat out to space as does the Earth <em>without</em> using mirrors a...https://scientific-speculation.codidact.com/posts/259702How does composition change if you extend an Earthlike atmosphere 50km below sea level?Lawtonhttps://scientific-speculation.codidact.com/users/445492020-01-23T18:51:12Z2020-01-24T14:09:56Z<p>I'm working to design the atmosphere of a fictional planet inspired by Venus (let's call it Cael).</p>
<p><strong>Cael's atmosphere at an altitude of 50 km</strong> is essentially identical to ...https://scientific-speculation.codidact.com/posts/259577How changing planetary ring affects the migration of terrestrial fauna?user6760https://scientific-speculation.codidact.com/users/373502020-01-21T06:48:31Z2020-01-21T07:50:45Z<p>Imagine a gas giant as massive as Jupiter has a enormous planetary ring which will expand and contract throughout its orbit around a main sequence star. </p>
<p>Then there is a moon as massive ...https://scientific-speculation.codidact.com/posts/259517How massive can a structure get on the inside of a Mckendree cylinder?Abanob Ebrahimhttps://scientific-speculation.codidact.com/users/438312020-01-18T13:04:04Z2020-01-18T14:40:49Z<h1>Background</h1>
<p>A <a href="https://en.wikipedia.org/wiki/McKendree_cylinder" rel="nofollow noreferrer">McKendree cylinder</a> is a rotating cylindrical space habitat comparable to the more ...https://scientific-speculation.codidact.com/posts/259294Maximum Size Limit for a Wooden-and-Bamboo Neo-ZigguratJohnWDaileyhttps://scientific-speculation.codidact.com/users/43992020-01-10T15:24:28Z2020-01-11T19:19:47Z<p>There is a concern that's been brought up only recently--steel and concrete buildings are environmentally wasteful. In further clarification, they waste away too much greenhouse gases. And con...https://scientific-speculation.codidact.com/posts/258990How to get a habitable moon without too long day-night cycle?Joku_242https://scientific-speculation.codidact.com/users/444882019-12-31T15:49:33Z2020-01-11T16:59:53Z<p>It appears that there are gas giants in habitable zones of stars, and likely some of them should have moons that are big enough to have an Earth-like world, so that part should be plausible enou...https://scientific-speculation.codidact.com/posts/259285Could an enormous structure be used to attract rain by acting as an artificial mountain?Stonecrafthttps://scientific-speculation.codidact.com/users/432112020-01-10T05:41:35Z2020-01-10T09:32:39Z<p>If it were possible to build a giant geodesic dome tens of miles in diameter, what effect would it have on nearby weather? </p>
<p>If built in an arid climate like the Sahara or Australia, woul...https://scientific-speculation.codidact.com/posts/233603Is there dense, non flammable gas that I can cover the Earth in?walrushttps://scientific-speculation.codidact.com/users/277122017-08-08T17:04:23Z2020-01-09T07:28:30Z<p>This question is related to <a href="https://worldbuilding.stackexchange.com/questions/14792/deadly-heavier-than-air-gas">Deadly, Heavier than Air Gas</a>, and <a href="https://worldbuilding.sta...https://scientific-speculation.codidact.com/posts/258473How could a skyhook stay in orbit with no human involvement for thousands of yearsJohn Lewishttps://scientific-speculation.codidact.com/users/435982019-12-10T21:59:39Z2019-12-11T16:00:03Z<p>In the story I'm writing, three humans with stone-age technology and no knowledge of space accidentally awaken thousands of cryogenically preserved humans. </p>
<p>These humans immediately get ...https://scientific-speculation.codidact.com/posts/257348How to mine a star?Haemhttps://scientific-speculation.codidact.com/users/310062019-11-02T12:16:37Z2019-11-02T21:24:25Z<p>Things like Dyson spheres need a whole lot of raw material, which is rather difficult to come by, since the elements needed for good structural steel are scattered fairly thinly into the univers...https://scientific-speculation.codidact.com/posts/257086Hurricane-force winds or gentle breezes in an O'Neill Cylinder?Davidhttps://scientific-speculation.codidact.com/users/411762019-10-24T17:10:25Z2019-10-29T16:37:49Z<p>Let's consider an <a href="https://en.wikipedia.org/wiki/O%27Neill_cylinder" rel="nofollow noreferrer">O'Neill cylinder</a> with a radius of 3.2km and length of 20km. In the classic O'Neill desi...https://scientific-speculation.codidact.com/posts/243647Which side of a tidally locked moon experiences higher radiation?Kabob Maracahttps://scientific-speculation.codidact.com/users/426562018-07-13T18:26:45Z2019-10-23T17:45:32Z<p>Looking most specifically regarding the moons around Saturn, Jupiter, and Uranus. I've been unable to get a concrete answer on this through various sources. I've actually read several articles b...https://scientific-speculation.codidact.com/posts/248197Would gas giants work as waste disposal sites?Kabob Maracahttps://scientific-speculation.codidact.com/users/426562018-12-04T15:38:05Z2019-10-23T17:45:08Z<p>In my novel, the many moons of Jupiter and Saturn have been colonized, but I'm running into some logistical problems - namely, waste disposal. My first instinct was to dump it on-moon; while th...https://scientific-speculation.codidact.com/posts/250115Mining Metallic HydrogenCelestial Dragon Emperorhttps://scientific-speculation.codidact.com/users/424812019-02-04T00:12:16Z2019-10-23T17:44:30Z<p>The Hegemony is in need of superconductors for their fleets of stratospheric craft (stratocraft for short) as well as many, many, many other applications. I recently read metallic hydrogen is a ...https://scientific-speculation.codidact.com/posts/250210The Mighty Generation Ship JupiterPelinorehttps://scientific-speculation.codidact.com/users/422132019-02-07T15:32:42Z2019-10-23T17:44:14Z<p>"The planet moves."</p>
<p>Inspired by <a href="https://www.schlockmercenary.com/2003-08-03" rel="nofollow noreferrer">this link</a> in a comment from Gryphon <a href="https://chat.stackexchang...https://scientific-speculation.codidact.com/posts/208441Can a gas giant have its own habitable zone?Leushenkohttps://scientific-speculation.codidact.com/users/365522014-12-23T19:51:16Z2019-10-08T21:02:00Z<p>Gas giants can generate heat via the <a href="http://en.wikipedia.org/wiki/Kelvin%E2%80%93Helmholtz_mechanism">Kelvin-Helmholtz mechanism</a>. It's oft-repeated that Jupiter actually generates m...https://scientific-speculation.codidact.com/posts/256543What could cause Fluorocarbons to be present in an Earth-like atmosphere?Aezychttps://scientific-speculation.codidact.com/users/442022019-10-03T01:35:12Z2019-10-03T02:31:12Z<p>Pretty simple (in theory that is) question for one of my worlds. I heard carbon fluorides are intense greenhouse gases but otherwise harmless and didn't lead to large issues (atleast none that I...https://scientific-speculation.codidact.com/posts/256421Is it possible to have multiple different climates within one O'Neill cylinder?Backup Planhttps://scientific-speculation.codidact.com/users/441712019-09-27T12:11:44Z2019-10-01T07:55:32Z<p>The <a href="https://s3files.core77.com/blog/images/lead_n_spotlight/320928_title__39721_HCC7HDxK2.jpg" rel="noreferrer">illustrations of O'Neill cylinders</a> I have come across with so far
al...https://scientific-speculation.codidact.com/posts/256435Can a Jupiter-Like Gas Giant Have Deep, Dark Storms?overlord - Reinstate Monicahttps://scientific-speculation.codidact.com/users/78782019-09-27T15:40:21Z2019-09-29T03:19:41Z<p>For this question, I was inspired by the following image of the "Jupiter Abyss":</p>
<p><a href="https://i.stack.imgur.com/e5ady.jpg" rel="nofollow noreferrer"><img src="https://i.stack.imgur.c...https://scientific-speculation.codidact.com/posts/256011Imagine a well functioning atmosphere on the terraformed moonBackup Planhttps://scientific-speculation.codidact.com/users/441712019-09-16T10:29:48Z2019-09-16T13:06:27Z<p>Just assume we are long into the future, all other parameters have been met and we have the technology, will and money to terraform our moon and keep it so.
Atmosphere, as commonly agreed on, wo...https://scientific-speculation.codidact.com/posts/255917Harvesting Energy from Gas GiantsAIwithstickhttps://scientific-speculation.codidact.com/users/440952019-09-13T15:14:29Z2019-09-13T17:15:30Z<p>In my world, humans live on a moon of a gas giant that has extreme weather conditions. They also:</p>
<ul>
<li>have crystals that can store energy.</li>
<li>possess the ability to make floatin...https://scientific-speculation.codidact.com/posts/255546How large would a space station have to be to hold one million people indefinitely?Alexhttps://scientific-speculation.codidact.com/users/436792019-08-30T20:50:11Z2019-09-08T13:14:08Z<p>A moon-sized asteroid approaches Earth in the near future, where space tourism has become normal. The Earth has a few satellite structures above Mars conducting research, as well as successful t...https://scientific-speculation.codidact.com/posts/254722Is it possible to calculate how long a moon takes to orbit a gas giant?Pentallionhttps://scientific-speculation.codidact.com/users/440432019-07-31T12:39:49Z2019-08-05T09:24:12Z<p>if it takes the moon 6 months to pass through the gas giants shadow? Assume it is distant enough to not be tidally locked. The gas giant is 112.5 AU from the star. The star is 55 solar masses...https://scientific-speculation.codidact.com/posts/246153What kind of Gas Giant has a "safe zone" between the radiation from a star and the radiation from a gas giant planet?Dalilahttps://scientific-speculation.codidact.com/users/398972018-09-21T19:27:04Z2019-07-25T18:20:49Z<p>This is a progression from my first question, <a href="https://worldbuilding.stackexchange.com/questions/125026/can-a-habitable-moon-rely-on-the-magnetosphere-of-its-parent-planet-for-radiatio">...https://scientific-speculation.codidact.com/posts/207778Is a Jupiter-sized planet plausible in a habitable zone?Pavel Janicekhttps://scientific-speculation.codidact.com/users/27492014-11-28T15:49:12Z2019-07-22T01:12:23Z<p>We lived through loads of questions regarding aquatic races, so buckle up, I am going to gather some ideas around <a href="https://worldbuilding.stackexchange.com/questions/4457/what-could-make-...https://scientific-speculation.codidact.com/posts/254389Gas Giant with solid surfaceBlue Devilhttps://scientific-speculation.codidact.com/users/430922019-07-19T13:15:46Z2019-07-19T13:34:23Z<p>I have the feeling the answer to this will come down to ''impossible'' but let's ask anyway to be sure. </p>
<p>We know gas Giants have no solid surface and if you tried to land on one you woul...https://scientific-speculation.codidact.com/posts/254284How could an animal "smell" carbon monoxide?kingledionhttps://scientific-speculation.codidact.com/users/77042019-07-15T11:52:54Z2019-07-17T22:53:43Z<blockquote>
<p>Carbon monoxide (CO) is a colorless, odorless, and tasteless flammable
gas that is slightly less dense than air.</p>
</blockquote>
<p>So begins Wikipedia's article on <a href="...https://scientific-speculation.codidact.com/posts/250206Temperature and climate "under" the gas giant in a tidally locked moonLumoshttps://scientific-speculation.codidact.com/users/434712019-02-07T13:03:23Z2019-07-17T18:24:46Z<p>I've begun the laborious (but fun!) process of putting another world together.</p>
<p>Known constraints include:</p>
<ul>
<li>Habitable, (super-)Earth-sized, tidally-locked moon to a gas giant...https://scientific-speculation.codidact.com/posts/253088Heating a gas giant's moons in a red dwarf systemDiego Cruz Barretohttps://scientific-speculation.codidact.com/users/438412019-05-22T11:39:45Z2019-06-09T10:10:40Z<p>Being new, this is my first question. I've read some other posts that gave me valuable insight, but I still have some questions.</p>
<p>First, some specifics:</p>
<ul>
<li><p>Star: red dwarf. ...https://scientific-speculation.codidact.com/posts/252697Can liquid water exist on the moons of this gas giant?Dusty Spectacles https://scientific-speculation.codidact.com/users/438052019-05-08T19:27:19Z2019-05-21T09:48:15Z<p><a href="https://i.stack.imgur.com/FWd8a.jpg" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/FWd8a.jpg" alt="Solar System as seen from above "></a>
This is an edited hopefully mor...https://scientific-speculation.codidact.com/posts/252262Can you make a star from other gases, and how long would they last?Greenie E. - Reinstate Monicahttps://scientific-speculation.codidact.com/users/436042019-04-23T08:08:01Z2019-04-23T17:55:09Z<p>In my Conworld, the inhabitants have discovered a type of star they cannot identify. I would like it to be a star made <em>not</em> from just hydrogen and helium, like our sun and countless othe...https://scientific-speculation.codidact.com/posts/252186Hot air balloons lifting bridges in volcanic areas are possible?Neto Ananiashttps://scientific-speculation.codidact.com/users/434242019-04-19T15:13:48Z2019-04-19T17:25:59Z<p>In this world, there is a land isolated by a lava line, and the only way to get in there, is across a bridge levitated by hot air balloons.</p>
<p>I had the idea of making a wooden bridge being...https://scientific-speculation.codidact.com/posts/244373Building a planet with a primordial black hole coreAlthaenhttps://scientific-speculation.codidact.com/users/416542018-08-04T11:54:16Z2019-04-03T16:11:59Z<p>I have been trying to figure out a way of explaining how an advanced society some time in the past built an artificial planet with a black hole at its core and the effects that would have on the...https://scientific-speculation.codidact.com/posts/251663What would the climate of a planetwide city be like?V. Redhttps://scientific-speculation.codidact.com/users/436922019-04-02T19:10:59Z2019-04-03T13:43:12Z<p>Assume the entirety of Earth (all the land) is covered in a city. What would the climate be like in different parts of it? I.e., what would it be like on the coast, or inland?</p>
<p>I imagine ...https://scientific-speculation.codidact.com/posts/211269Deadly, Heavier than Air GasDanny Reaganhttps://scientific-speculation.codidact.com/users/365132015-04-20T16:21:27Z2019-03-22T06:24:31Z<p>In a given fantasy world, I need a deadly (yet not magical) gas that will naturally pool in low depressions and valleys.</p>
<p>The level of magic is not high, so I'd like it to be an actual ch...https://scientific-speculation.codidact.com/posts/250766How to explain planetary rings pulsating?user6760https://scientific-speculation.codidact.com/users/373502019-03-01T11:22:01Z2019-03-01T12:08:53Z<p>A spacecraft enters an unnamed system and spotted a gas giant with a pulsating planetary ring, it glows bright intermittently. What natural phenomenon could be responsible for such brilliant dis...https://scientific-speculation.codidact.com/posts/250185Separating light gases from heavy without chemistrychasly from UKhttps://scientific-speculation.codidact.com/users/36272019-02-06T22:11:40Z2019-02-08T18:11:59Z<p><a href="https://worldbuilding.stackexchange.com/questions/94764/how-do-steampunk-civilizations-get-lifting-gas">How do steampunk civilizations get lifting gas?</a></p>
<p>Inspired by the above...https://scientific-speculation.codidact.com/posts/249808Life on a gas giant?GRFhttps://scientific-speculation.codidact.com/users/434222019-01-24T03:50:32Z2019-01-29T10:12:20Z<p>I know of the conceptualized "Sinkers", "Floaters" and "Hunters" that Carl Sagan and Edwin Salpeter of Cornell conceived of - as possible life forms that might inhabit a gas giant. At the time t...https://scientific-speculation.codidact.com/posts/244256Prevailing winds on a rotating space habitatMike Nicholshttps://scientific-speculation.codidact.com/users/365722018-07-31T22:04:09Z2019-01-26T23:33:35Z<p>A common, matter-efficient science-fiction habitat is a hollow cylinder or ring in space that is spun to simulate the pull of gravity on its interior surface. These habitats have been imagined a...