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13.1k posts
 
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Q&A Growing new teeth, Plausible?

I was thinking about how we differ from crocodiles and sharks in terms of teeth. Now of course we don't have carnivore teeth but we also don't grow new teeth unless you are talking about a young ch...

3 answers  ·  posted 7y ago by Caters‭  ·  last activity 7y ago by Caters‭

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Q&A How to Use Photosynthesis Creatively in Humans

I've seen many questions here about humans being capable of photosynthesis. And I know, humans don't have enough surface area to power themselves full time. However, that's assuming that the energy...

5 answers  ·  posted 7y ago by Lot-Of-Malarkey‭  ·  last activity 7y ago by Lot-Of-Malarkey‭

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Q&A How can a highly advanced sub-luminal galactic empire minimise the effects of speciation?

The Humern Empire (no relation) spans the galaxy, using a variety of methods to move from place to place and planet to planet. One thing all of their modes of transport share is that they are not ...

13 answers  ·  posted 7y ago by Joe Bloggs‭  ·  last activity 6y ago by Joe Bloggs‭

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Q&A Cardinal direction names at a north polar moon base?

There's a human settlement at the north pole of the moon large enough to sustain expansion outwards for say 100 km in all directions. Humans like to think in terms of four principal cardinal direc...

2 answers  ·  posted 7y ago by dhinson919‭  ·  last activity 7y ago by dhinson919‭

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Q&A Building a drone for gas giant flight: Lightning considerations

A previous question's answer established that naturally occurring positrons could be gathered through positron-emitting isotopes. I've started looking into means that these isotopes could be gather...

1 answer  ·  posted 7y ago by Arvex‭  ·  last activity 7y ago by Arvex‭

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Q&A What technologies might lead to or support "perfect recycling"

I'm developing fictional technology for "perfect recycling." A large plant that takes in water and every cubic millimeter of waste humanity can produce (in the local area, of course). It disinteg...

6 answers  ·  posted 7y ago by JBH‭  ·  last activity 7y ago by JBH‭

Question technology
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Q&A Determining this Planet's periods?

So, I'm trying to figure out a world's cycle (length of a year, day, etc.). The planet, Vixeruka, is about 3 times larger than Earth is, making it a super-Earth, and it's the second planet from it...

2 answers  ·  posted 7y ago by SCPilot‭  ·  last activity 5y ago by SCPilot‭

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Q&A Manipulating decaying positron-emitting isotopes for positron "mining"

In a previous question, it was established that antimatter could be "mined" through positron-emitting isotopes. By gathering positrons from decaying positron-emitting isotopes (potassium-40 and al...

1 answer  ·  posted 7y ago by Arvex‭  ·  last activity 7y ago by Arvex‭

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Q&A How would having pronounced lower tusks affect or impede language?

I am currently in the early stages of mapping out a conlang for a race of boar-people. I was stumped trying to think of what limitations, if any, having pronounced lower tusks would have on the de...

2 answers  ·  posted 7y ago by Pleiades‭  ·  last activity 7y ago by Pleiades‭

Question biology language
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Q&A What could cause sugary rain?

In a world very similar to ours, rain has a high concentration of simple carbohydrates in it, enough to sustain life on the surface. After some rainfall, this sugary rainwater is left behind and so...

10 answers  ·  posted 7y ago by Dubukay‭  ·  last activity 7y ago by Dubukay‭

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Q&A How long would a body be preserved in a sealed coffin in space?

A spacefaring people buries their fallen heroes in space. The bodies are adorned in uniforms (fabric), equipped with the weapons they carried in life (mostly aluminium, steel or polymer, but contai...

3 answers  ·  posted 7y ago by Quadratic Wizard‭  ·  last activity 7y ago by Quadratic Wizard‭

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Q&A Is this a fairly decent description for a post-apocalyptic fiction story?

Okay so the story takes place up in the northern hemisphere around glaciers and polar bears and all that good stuff, its main character is named Xavior and he is a good human adapted to the radioac...

1 answer  ·  posted 7y ago by Amoeba‭  ·  last activity 7y ago by Amoeba‭

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Q&A The Transferable Skills of Sociopathy

Executive Summary Thank you for considering Chronograph Talent Consulting for your talent acquisition needs. We select the best talent from all previous periods of human history and make them ava...

3 answers  ·  posted 7y ago by Green‭  ·  last activity 6y ago by Green‭

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Q&A How many nukes are needed to restart Mars' Core?

Whenever terraforming Mars comes up, the subject of its magnetosphere inevitably arises. When that happens, someone is bound to suggest using nukes to restart the core a la "The Core". Assuming th...

3 answers  ·  posted 7y ago by KareemElashmawy‭  ·  last activity 5y ago by KareemElashmawy‭

Question terraforming mars
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Q&A Would residents of a small planet realize the planet is small?

I am considering setting my next D&D campaign on an earthlike but small planet. By "small," I am imagining a world that still feels vast, yet is circumnavigable over land and/or water with low ...

2 answers  ·  posted 7y ago by Gday‭  ·  last activity 7y ago by Gday‭

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Q&A How realistic/unrealistic is the trope of "The Earth that Was"?

The idea of the trope is that at some point, Earth is doomed, humans flee into the stars, knowledge of Earth is lost in the process, eventually becoming legend or myth, either due to loss of inform...

8 answers  ·  posted 7y ago by Future Historian‭  ·  last activity 7y ago by Future Historian‭

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Q&A A pack of velociraptors in a modern ecosystem, that would be pretty horrible, right?

So there's been some industrial espionage committed against T-Rex Forever LLC. The method for how they acquired their T-Rexes has been stolen. Terrible Lizards Inc has acquired a mated pair of Vel...

3 answers  ·  posted 7y ago by Green‭  ·  last activity 7y ago by Green‭

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Q&A Energy gain/loss of using synthesized antimatter as a fuel?

Setting aside concerns of containment for now; how much energy would it take to create antimatter? And how much of it would we get back using it as a fuel in a matter-antimatter reactor? What I'm ...

3 answers  ·  posted 7y ago by Arvex‭  ·  last activity 7y ago by Arvex‭

Question antimatter energy
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Q&A Can you protect a Space Elevator from Space Junk?

The idea of an elevator reaching to the near cosmos is very tantalizing when trying to think of ways off planet. A major draw back to this idea is that a long, thin tower into the atmosphere seem l...

12 answers  ·  posted 7y ago by Renzler‭  ·  last activity 7y ago by Renzler‭

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Q&A Animals with natural biological harpoons, any particular edge which they would have over other predators?

So I was thinking of a land animal with a biological harpoon, I'm not 100% sure why it would evolve with it. Details of it would be: Quadrupedal Medium-sized (similar to a pony) and would hunt s...

5 answers  ·  posted 7y ago by Matthew Ng‭  ·  last activity 7y ago by Matthew Ng‭

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Q&A Could astronauts find their bearings in the Universe after being transported 6 gigalightyears from Earth?

In my world, humanity reaches their new home among the stars by way of a portal that pops into the solar system one day. This portal instantaneously transports those who enter to a place that is lo...

16 answers  ·  posted 7y ago by Junkey McKrat‭  ·  last activity 6y ago by Junkey McKrat‭

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Q&A Would it be possible to have three planets merge but still allow some life survive?

In my universe a race of humanoid beings caused 3 planets: Earth a larger rocky planet and another earth sized rocky planet to crash and collide into each other, but still allowed the humanoi...

3 answers  ·  posted 7y ago by BlueTangsRock‭  ·  last activity 6y ago by BlueTangsRock‭

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Q&A Room-Temperature Animal

Remember the Xenomorphs from aliens, how they didn't show up in heat vision? I was wondering how you could recreate that effect biologically... a creature which doesn't pop-up on IR (at least, not ...

3 answers  ·  posted 7y ago by Johnny‭  ·  last activity 7y ago by Johnny‭

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Q&A How strong would John Carter really be on Mars?

Let us assume that in the future, there is a formerly human colony on Mars that has existed there for some centuries. The people of this world have had time to adapt to the lower gravity over at le...

3 answers  ·  posted 7y ago by kingledion‭  ·  last activity 6y ago by kingledion‭

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Q&A The Source of Gravity Based Destruction

The Background: It's the year 4000 (or whatever), and mankind has cheated FTL travel. As a result of this 'cheating' rather than solving, however, they can't easily go beyond their borders. Howe...

7 answers  ·  posted 7y ago by Mackenzie Bodily‭  ·  last activity 7y ago by Mackenzie Bodily‭