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13.1k posts
 
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Q&A Could giant snakes be ridden by people?

I am a writer trying to build a fantasy realm relatively similar to our world. The only difference between this world and ours was that every creature and animal was significantly larger, potential...

3 answers  ·  posted 6y ago by Austin Trigloff‭  ·  last activity 6y ago by Austin Trigloff‭

Question biology fauna
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Q&A Would a society with two different species that can interbreed be viable?

One species has two genders, like humans, the other has three(essentially male, female, and one without breeding capabilities that first appears as a genetic quirk but quickly becomes more prominen...

5 answers  ·  posted 6y ago by EnglandsGirl1818‭  ·  last activity 6y ago by EnglandsGirl1818‭

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Q&A On the viability of living balloons

This is not a question on whether or not floating, balloon-like organisms are biomechanically viable - I already know the answer to that, which is yes. This instead deals with the plausibility of s...

3 answers  ·  posted 6y ago by SealBoi‭  ·  last activity 6y ago by SealBoi‭

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Q&A How to broadcast Earth's position to someone in the future?

Using current technology, what could I do to optimize the odds of being located by time-traveling humans a thousand years from now? The accuracy must be such that they could "transport" me out of ...

3 answers  ·  posted 6y ago by imagoomba‭  ·  last activity 6y ago by imagoomba‭

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Q&A Effects of 6 hours days on my planet

One of the planets I am working on is supposed to have a day of about 6 earth hours long & I'm wondering what effects this will have on its surface and climate. Also, I don't know if this is r...

3 answers  ·  posted 6y ago by Kowita‭  ·  last activity 6y ago by Kowita‭

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Q&A Ideal Martian Colony Spot

What would be the ideal spots to build/start a colony on Mars? I am looking for. . . Good location; a particular well placed crater, lots of caves nearby, etc. . . Good mix of resources; Ice, ir...

3 answers  ·  posted 6y ago by The Imperial‭  ·  last activity 6y ago by The Imperial‭

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Q&A "Magic" diamonds for fuel?

The subterranean nation of Glot has developed the ability to "thermally link" two equally sized diamonds, such that they are always the same temperature, regardless of spatial separation. We can c...

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

Question physics steampunk
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Q&A Could people survive on earth if a day lasted 100 years?

Imagine we took earth and slowed it down so that a day lasted 100 years, could humans (or any life) survive? Let's assume that there are no ill effects of slowing it down, no massive tidal waves, n...

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

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Q&A How would you go about seeding oceans of Europa with adapted Earth life?

How do you go about building a working Earth-like ocean ecosystem from scratch in Europa's subsurface ocean? On Earth, abyssopelagic species have evolved to live more than 6km below the surface. A...

2 answers  ·  posted 6y ago by Chairman Yang‭  ·  last activity 6y ago by Chairman Yang‭

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Q&A How to determine reasonable population density of a three-dimensional volume

I'm attempting to rough-estimate potential population density of three-dimensional megastructures in space. Assume a filled spherical volume (i.e. death star, not Dyson sphere), where all internal ...

1 answer  ·  posted 6y ago by Knight Porter‭  ·  last activity 6y ago by Knight Porter‭

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Q&A If reality were frame-rate based, how could we detect it?

Inspired by this question regarding reality as simulation and this question about a continuous time line, it made me wonder: if our time were indeed like a high frame-rate simulation, how could we ...

10 answers  ·  posted 6y ago by Alma Do‭  ·  last activity 6y ago by Alma Do‭

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Q&A How would the water flow if you were to have a shower in centrifugal force equivalent to 1 g on a rotating space station?

Someone showering after exercise aboard a rotating space station spinning to simulate 1 gravity. How might Coriolis affect jets of water falling within a cubicle of 2 metres in height?

1 answer  ·  posted 6y ago by Chairman Yang‭  ·  last activity 6y ago by Chairman Yang‭

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Q&A How much mass does an object in low earth orbit need to create visible gravitational effects on the surface?

The question stems from watching a scene from ID2 and seeing the massive alien mothership landing/crashing on the North Atlantic. What mass would a starship, or any other artificial object constru...

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

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Q&A How much power could we harness from waterwheels in the bloodstream?

If we could embed tiny "water" wheels into our veins and arteries, what is the maximum amount of power we could achieve? Assume that they will work and won't malfunction or clog our blood. Also, we...

3 answers  ·  posted 6y ago by Noah Cristino‭  ·  last activity 6y ago by Noah Cristino‭

Question biology cyborg
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Q&A What would shake a galaxy and what would shake the universe?

I'm trying to think of what kind of cosmic event would cause an explosion powerful enough to "shake" or disrupt the whole flow of a galaxy and on that same note what other kind of super cosmic even...

9 answers  ·  posted 6y ago by nuckingfutz ‭  ·  last activity 6y ago by nuckingfutz ‭

Question space universe
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Q&A Vampires in space

The setting is our Earth of today (2018) with one difference: some Space Agency decided to go back the Moon and built a ship that is ready to depart, using today's technology. For reasons, the cre...

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

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Q&A Is there a relationship between apparent moon size and orbital distance around an earth-analogue?

I would like to give my imaginary earth-analogue planet multiple (natural) moons. Is the orbital period of such moons at all related to their size (or apparent size)? In other words, am I free ...

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

Question moons
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Q&A A reciprocal metabolism is needed on a world overrun by crazy plants

In this paper by Bains et al, an alternative to oxygenic photosynthesis is discussed. Apparently, 4 times the amount of biomass can be produced using hydrogenic over oxygenic photosynthesis. Oxyge...

1 answer  ·  posted 6y ago by Eben Cowley‭  ·  last activity 6y ago by Eben Cowley‭

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Q&A Could the World's Rainshadows Have Spiny Forests?

There is no other way around it--Madagascar is an evolutionary uniquety. 80% of the island's species live nowhere else on Earth. Among this uniqueness is a habitat that seems to come out of scien...

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

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Q&A How could my humanoids metabolize smoke?

I have a species of humanoids that spends a lot of time around fire. They are able to spark their own fires, and they have a reasonable fire resistance. One problem presenting itself is smoke inha...

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

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Q&A Would Be Possible To Build A Small, Lightweight Boiler For Airships

I am wondering if it would be possible to make very lightweight and small steam engines for airships. Said airships engines are actually electric, but the boiler generates the electricity (via a ge...

3 answers  ·  posted 6y ago by The Imperial‭  ·  last activity 6y ago by The Imperial‭

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Q&A How to feed parity transformed John Doe?

We do not know how exactly it happened, but poor John Doe made a space-time trip along a three dimensional analog of a Möbius strip (a Klein bottle). He is now back on Earth, but he is now the mir...

2 answers  ·  posted 6y ago by jk - Reinstate Monica‭  ·  last activity 6y ago by jk - Reinstate Monica‭

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Q&A Aside from low gravity, what conditions favor dramatic terrain?

Fantasy and sci-fi works often are set in worlds of dramatic terrain, because, well... it's dramatic. A few examples of the kind of thing I'm talking about: I understand that Earth has som...

4 answers  ·  posted 6y ago by SealBoi‭  ·  last activity 5y ago by SealBoi‭

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Q&A The weird case of the unresponsive Earth - why does the Earth stop communicating with Mars?

Mars has been colonized, close to a million people are now living above (and below) the martian soil, every few months a ship from Earth arrives with more resource for expansion and more settlers, ...

13 answers  ·  posted 6y ago by cypher‭  ·  last activity 6y ago by cypher‭

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Q&A Macroevolution in an isolated room

Imagine a large room, perhaps 50 metres in length and 35 in width, with its ceiling 40 metres above the floor. On this ceiling, there are LED lights, rendering the brightness of the room to look so...

6 answers  ·  posted 6y ago by SealBoi‭  ·  last activity 6y ago by SealBoi‭