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13.1k posts
 
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Q&A Feasibility of compressing matter to electron degeneracy

So, I have been a bit disappointed with the answers on how to store degenerate matter from my previous thread, and now I'm even wondering whether one can produce it at all, without invoking unreali...

1 answer  ·  posted 5y ago by CYCLOPSCORE‭  ·  last activity 5y ago by CYCLOPSCORE‭

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Q&A Penguins in the Not-Arctic, how would this affect the poor seals

In a not so different fantasy world, whose physics and thus are similar to our own how would including penguins affect the look and function of a typical arctic ecosystem. For the purposes of this...

2 answers  ·  posted 5y ago by The Imperial‭  ·  last activity 5y ago by The Imperial‭

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Q&A Constructing a doomsday machine by manipulating the Higgs Field?

I've been working on a sci-fi series set about 1000 years in our future. The discovery of an alien threat leads the ruling government to conceive of a doomsday machine, which they hope will be so p...

3 answers  ·  posted 5y ago by Geroditus‭  ·  last activity 5y ago by Geroditus‭

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Q&A Why would an AI overlord want to give their robot citizens emotion?

In my world, a hyper-intelligent AI has struck out on their own to form a perfect, mechanized empire, populated by loyal robot citizens, devoted to the overlord as a child would be devoted to their...

21 answers  ·  posted 5y ago by Cobbington‭  ·  last activity 5y ago by Cobbington‭

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Q&A If prey and predator switched places how would this shape the ecosystem?

As the tittle says what would the ecosystem look like if predator and prey were to switch places? The cause of this change is either handwavium or a very unlucky sorcerer. The transformation is mai...

6 answers  ·  posted 5y ago by System‭  ·  last activity 5y ago by System‭

Question biology
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Q&A Could an enormous structure be used to attract rain by acting as an artificial mountain?

If it were possible to build a giant geodesic dome tens of miles in diameter, what effect would it have on nearby weather? If built in an arid climate like the Sahara or Australia, would it be li...

3 answers  ·  posted 5y ago by Stonecraft‭  ·  last activity 5y ago by Stonecraft‭

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Q&A Could a waterborne virus contaminate the entire ocean?

Is it plausible that a virus could contaminate the entire ocean to where humans that enter it are highly likely to contract the virus? It doesn't necessarily have to be the whole ocean what with th...

1 answer  ·  posted 5y ago by Crimson Bloom‭  ·  last activity 5y ago by Crimson Bloom‭

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Q&A The Heptapods from ( The Arrival )

In the movie, Arrival, there is an advance alien race that arrives on are planet, with a few landing in specific places. The aliens species are called "heptapods" (by our standards). They have 7 a...

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

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Q&A Is it possible to create an organism that is completely immune to radiation?

Radiation is the ultimate bane of all organic life. Its particles punch holes in our DNA, causing mutations and giving us cancer. But, is there a way to make an organism that is unable to get radia...

3 answers  ·  posted 5y ago by Cobbington‭  ·  last activity 5y ago by Cobbington‭

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Q&A Designing a safe way to share location of a secret ship

There is a secret ship and it is used by pirates as a recharging point. It has a nuclear reactor as a power source and other ships are using electricity. Let's assume in this world stealth technolo...

6 answers  ·  posted 5y ago by Kirill‭  ·  last activity 5y ago by Kirill‭

Question communication ships
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Q&A Communicating the idea of danger to an unknown alien civilization

An alien automatic "beacon" tries to warn us about some imminent danger. It does so with launching a succession of large "veils" in front of their star so we can detect them via the transit method....

13 answers  ·  posted 5y ago by Keelhaul‭  ·  last activity 5y ago by Keelhaul‭

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Q&A The Red-Headed Whale. Why Would the Head be Red?

In the waters of Iceland, the natives have their own word for a particular brand of cetaceans--"Illhveli", literally "evil whales". And the bloodthirstiest of them all is Raudkembingur, Icelandic ...

11 answers  ·  posted 5y ago by JohnWDailey‭  ·  last activity 4y ago by JohnWDailey‭

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Q&A What is the longest amount of time that salted bombs can deny human habitation?

Inspired by this question, which is asking how to deny land for several hundreds of years after a global nuclear holocaust, I would like to know, given only nuclear weapons, and especially salted b...

1 answer  ·  posted 5y ago by Ghedipunk‭  ·  last activity 5y ago by Ghedipunk‭

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Q&A Post- Nuclear Holocaust. Radioactive wastelands vs eco-system and chances of human survivability?

I'm attempting to flesh out the history to a sci-fi novel I'm currently writing, which is set in the future. Several hundred years prior to the beginning of the story, lack of resources lead to s...

5 answers  ·  posted 5y ago by Nicky Pritchard‭  ·  last activity 5y ago by Nicky Pritchard‭

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Q&A Minor terraforming that allows people, and doesn't inconvenience local flora and fauna

What I'm looking at doing is a small game where you land on a planet, and the atmosphere is not survivable by a human being, but there is local life. Over the course of the game, terraforming has t...

1 answer  ·  posted 5y ago by MartinArrJay‭  ·  last activity 5y ago by MartinArrJay‭

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Q&A How can an amorphous creature change viscocity at will?

In my fantasy setting, slimes are a species of giant (about eight cubic feet), single-celled amoeba. They have the ability to freely change their state and viscocity, being able to "melt" into a sl...

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

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Q&A What would Europe look like if Chernobyl exploded?

In a scenario where the Soviets didn't manage to stop corium from reaching the water reservoirs underneath the plant, causing a detonation equivalent to a nuclear explosion, what would life in the ...

4 answers  ·  posted 5y ago by Marcello Fabrizio‭  ·  last activity 5y ago by Marcello Fabrizio‭

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Q&A Rapid-repeat re-entry vehicles

In my current writing project, I'm working in a universe where mysterious alien beings travel not directly through space, but through planetary atmospheres via wormholes. These aliens shotgunned th...

4 answers  ·  posted 5y ago by BMF For Monica‭  ·  last activity 5y ago by BMF For Monica‭

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Q&A Could a Flying Alien Species Develop Fire Usage?

I've got an intelligent, stone-age species that looks a bit like an Azhdarchid pterosaur. It is around the size of a large eagle. They have a proboscis and a finger on each wing used for manipulati...

3 answers  ·  posted 5y ago by 299 Neandertal Variants ‭  ·  last activity 5y ago by 299 Neandertal Variants ‭

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Q&A Could a vehicle levitate through use of ultrasonic sound waves?

This is a bit of a continuation of my previous question, could a form of acoustic levitation be used as artificial gravity? In that question, I referenced how some scientists use acoustic levitat...

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

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Q&A What could cause a spike in the natural uranium depletion rate?

What is a possible event${^*}$ that would cause a spike in the speed of $^{235}$U fission and reduce its average concentration in ore worldwide? As I understand the physics of the process, it is i...

5 answers  ·  posted 5y ago by Kirill‭  ·  last activity 5y ago by Kirill‭

Question nuclear fission
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Q&A Substance that changes quickly from liquid/gelatinous to solid?

Question: does a liquid or gelatinous substance exist that once outside a body could solidify and be hard enough to be used once as a tool? The setting is low fantasy without magic, yet with creat...

13 answers  ·  posted 5y ago by TinyTinkerWorkshop‭  ·  last activity 5y ago by TinyTinkerWorkshop‭

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Q&A What is the most efficient way of mining energy from a flare star?

Set in the distant future, human is transitioning to a type 3 advanced civilization on a Kardashev scale in about a hundred years or two. We have nearly exhausted the energy from our Sun and severa...

3 answers  ·  posted 5y ago by user6760‭  ·  last activity 5y ago by user6760‭

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Q&A Habitable Planet in the L2 Lagrange Point of a Hot Jupiter

If orbiting in the L2 lagrange point of a large planet (doesn't actually have to be a hot Jupiter, just large enough to fully shadow the smaller planet), how close could you get to the host star be...

1 answer  ·  posted 5y ago by WillRoss1‭  ·  last activity 5y ago by WillRoss1‭

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Q&A Is it necessary for spaceships to include reverse thrusters for deceleration in space?

Set in the not so distant future, space travel becomes commonplace but is limited within the heliosphere. I'm thinking since it is fuel efficient and more economical to use gravity assist to slow d...

6 answers  ·  posted 5y ago by user6760‭  ·  last activity 5y ago by user6760‭