Activity for Greenie E. - Reinstate Monica
| Type | On... | Excerpt | Status | Date |
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Life develops on a moon left in darkness? In the deep, outer reaches of our galaxy, there is a rogue gas giant which, due to an unfortunate event, was flung from its native orbit into interstellar space. It has a mass 12 times that of Jupiter, approaching the title of Brown Dwarf. It has only 2 moons, one of which developed life during its ... (more) |
— | over 4 years ago |
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Feasibility of a gas giant made of oxygen and water vapor? In a distant galaxy, there is a young, yellow-white star. Orbiting this star is a gas giant comprised almost entirely of oxygen-nitrogen, and water. In its core, there is a relatively large nickel-iron body about 1.5 times the size of mercury. Above that is a freshwater ocean, with a "Seafloor" of ic... (more) |
— | over 4 years ago |
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Moving Enceladus to become Earth's Second Moon and its side-effects If we moved Enceladus (not Europa) into Earth's orbit (ignoring the plausibility of it), and gave it a breathable atmosphere, what effects would it have on the Earth? How would it affect us? (more) |
— | almost 5 years ago |
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A good reason for why aliens want to take over Mars? In a future where Mars has been abandoned for several thousand years, and Earth has reverted to a somewhat-habitable state, why would aliens choose to live on Mars, rather than more habitable Earth? They are very similar to humans in almost every facet except appearance, and Mars was, before its aban... (more) |
— | almost 5 years ago |
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Making an object to reach Jupiter's core and return information? Would it be possible to create a probe which could survive the crushing pressures and temperatures to reach the solid core of Jupiter and return data to Earth? What would make this impossible? This is with any possible technology, not current tech. (more) |
— | almost 5 years ago |
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How could a "Lonely Mountain" form? I have seen some discussions about Middle Earth's Erebor, the "lonely mountain" and how it really isn't lonely. How could a true "Lonely Mountain" (a single peak in the middle of a vast plain) form? My theory involves a shield volcano and huge amounts of erosion, but that would take billions of years... (more) |
— | almost 5 years ago |
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How to get a green gas giant? In Deep, deep space, there exists a star system with a single planet. This planet, named Dewel, is a large, green gas giant with a mass of about twice Jupiter's. What could this planet's atmosphere composition be to make it green? (more) |
— | almost 5 years ago |
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Amount of force needed to nullify the moon's tidal lock? What size and/or mass of impactor would need to impact the moon to destroy its tidal lock so that it's orbit is noticeable within its phases? What side effects would this impactor cause, and how would it affect the earth's tides, if at all? (more) |
— | almost 5 years ago |
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Alcohol-based organisms? Would it be possible to have an organism to be based on alcohol, rather than water? Complexity does not matter, but a complex organism would be favourable. their environment would be in oceans of isopropyl alcohol on a relatively warm planet with very thin CO2 atmosphere and less than half earth's gr... (more) |
— | almost 5 years ago |
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Synthesization of a star? Would it be possible to put hydrogen into a vacuum chamber and use something to turn it into a smaller version of a star? I am making a scene with a simulated planet environment in space and wanted the core to be a very, very small star. (more) |
— | almost 5 years ago |
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Effectiveness of orbital railguns on ground or air-based targets? For space-based warfare, would an orbiting satellite which was equipped with a railgun cannon be effective against a ground-based fort, or even an aeroplane, or another type of air transport? This is, of course with full data on the planet's surface, and the planet is reasonably earth-like. (more) |
— | almost 5 years ago |
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Are elliptical rings feasible? Around a rocky planet or small gas giant, could there be a system of rings that follow an elliptical orbit? I have used a gravity simulator (this one) to test it, but the way it handles its particles doesn't seem like it would work. My question is, can a planet have an elliptical ring system? (more) |
— | almost 5 years ago |
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The possibility of a bulletproof hardwood? In my conworld, the inhabitants have futuristic technology and use armour that is made of primarily wood but will absorb bullet impacts and even armour-piercing rounds. It is cited as being very fire-resistant, though after enough time has elapsed it will burn through. What would be the conditions re... (more) |
— | almost 5 years ago |
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Using Magnet Technology to Make a Rotating Space Station? For an artificial gravity ring station, could you make a central hub, using similar magnet technology used to levitate magnet trains here on earth, to reduce the amount of mass rotating? My thoughts on a configuration are; a central hub, about the size of an SUV, with magnets within it, and it is rot... (more) |
— | about 5 years ago |
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Would it be possible to survive on a world with only plants? If you were air dropped onto another planet, where multi-cellular non-plant life did not evolve, could you survive on what was only around you? The planet in question is a clone of earth, in almost every detail. Plants are almost the same as on earth, except for features evolved because of animals an... (more) |
— | about 5 years ago |
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What is the size limit for a rocky planet in orbit of an O type star, within the habitable zone? As asked in the title, what would be the upper limits to a rocky planet's size in orbit of an O type star, like 10 Lacerta's habitable zone? Density of the planet must be enough to stand on without falling through (Sorry I couldn't find a reliable source on a formula to calculate this) and mass shoul... (more) |
— | about 5 years ago |
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How well would a planet in orbit of a star above the Galactic bulge see? I am making a story of a species who lives on a planet several light-years above the Galactic Bulge. With advanced technology, how much could they see from their vantage point? Could they carry out advanced surveillance on much of the galaxy's stars? If not, what would the night sky look like there, ... (more) |
— | about 5 years ago |
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What Colour would a sulfuric acid lake be? I was thinking of an interesting landmark to put on my conworld, and I went with the "large body of acid" trope. This lake would be about the size of Lake Superior, and near the equator. The atmosphere is very similar to Earth's, but with about 5% Argon comprising it. The underlying rock has high con... (more) |
— | about 5 years ago |
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A feasible and efficient method of fast global travel? What would be an efficient method of global travel that can take you from, let's say, London to Hong Kong in about an hour? It would preferably be made quickly, but money is no object. I don't want something that would take 100 years to build. (more) |
— | about 5 years ago |
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Could you fly a Boeing 747 on Venus? I have been making a future colonization scenario where people have vast colonies on Mars and cloud top bases on Venus. These things are unbelievably large. I've already thought of a way to travel between these on Mars, but Venus is another issue. Could you use a common passenger jet (most likely mod... (more) |
— | about 5 years ago |
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How can a salty ocean be turned purple? On my Conworld, the oceans are purple. This is mostly for aesthetic purposes and my current explanation is an abundance of cyanobacteria. I'm not sure that this explains it correctly, so what could explain this realistically? The water doesn't have to be potable, because a scarcity of fresh water is ... (more) |
— | about 5 years ago |
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Complications of displaced core material? If there were an absolutely terrible accident, and part of Earth's core was displaced toward the surface, making a bubble of liquid nickel and iron, what would be the major problems with this? (more) |
— | over 5 years ago |
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Guns in space with bullets that return? I was reading on another question (this one) and was thinking "What if those bullets could return?" What I am looking for is: Practicality Cost effective Combat effective Manufacturability (more) |
— | over 5 years ago |
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Feasibility of lava beings? Could a creature be made entirely, or mostly of magma or lava? Could it sustainably live in or near a volcano for an extended period of time? Rocks around the outside are optional, and encouraged. If this cannot be achieved naturally, then that is sad. (more) |
— | over 5 years ago |
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Implications of cigar-shaped bodies having rings? In my Conworld's system, There is a porous asteroid large enough to be a dwarf planet (but it's mass is too small to pull it into a spherical shape) that has rings. How they got there, nobody knows. But could they have a prolonged orbit around the body without interference, unless from another astero... (more) |
— | over 5 years ago |
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Can you replicate a being's DNA just from observing it? In the movie Captain Marvel, the main antagonists (at least for half the movie), the shape-shifting Skrulls, can change their appearance to perfectly match any humanoid creature, down to DNA. Scientifically, I would label this as just conscious and very fast evolution, but they also replicate the DN... (more) |
— | over 5 years ago |
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Can you make a star from other gases, and how long would they last? In my Conworld, the inhabitants have discovered a type of star they cannot identify. I would like it to be a star made not from just hydrogen and helium, like our sun and countless others. But my question here is: Can a star be made of other materials? I am mainly interested in: Oxygen Nitrogen Neo... (more) |
— | over 5 years ago |
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Could a planet with two time streams be possible I am asking specifically because I was recently doing a Doctor Who marathon and saw the apalapucia episode and thought "I wonder if that's possible?" So here I am. Is it possible to have a planet where time passes at different speeds at two different locations? Such as: one hour at one place equals a... (more) |
— | over 5 years ago |
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Can my Alien species be possible with real science? They are blue to gray skinned with four eyes, two of which can see in infrared, three fingers and toes on each appendage, and reptilian-like ears (eardrums are external), as well as a hair color range similar to humans. They have nostrils where a human would, except that they are slits, they have sys... (more) |
— | over 5 years ago |