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Q&A How to build a telescope using gravitational lensing?

A Type II civilization on the Kardashev scale has decided to build a telescope. This civilization spans its home galaxy and wields vast energies capable of moving and shaping matter on the scale of...

2 answers  ·  posted 8y ago by Mike Nichols‭  ·  last activity 6y ago by Mike Nichols‭

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Q&A Building an Ethics Framework for use of Uploaded Personalities

Five years ago, our company reached the stage where we were able to create, maintain, and communicate with digitized brain transfer images. These trials were conducted on patients with life-limiti...

1 answer  ·  posted 8y ago by System‭  ·  last activity 8y ago by System‭

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Q&A Would a fighter jet be able to go into orbit from Mars surface?

Says a F22 with full tank is trying to break through the thin layer of Martian atmosphere and almost moon like gravity(alright that's probably too exaggerated) anyway say there is a runway stretchi...

3 answers  ·  posted 8y ago by user6760‭  ·  last activity 8y ago by user6760‭

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Q&A Stopping time, by speeding it up inside a bubble

Imagine I have a device that can stop time for the person who holds it (similar to Bernard's Watch). This device works in a very specific way - it creates a bubble around the user (just large enoug...

8 answers  ·  posted 8y ago by Drgabble‭  ·  last activity 6y ago by Drgabble‭

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Q&A Where on a tidally locked planet with a 25 °C maximum is the 0 °C isotherm?

I am writing a novel. In that novel, humans have settled a tidally locked planet. That planet is positioned at just such a distance from its sun that the sun heats the planet to an average of 25 °...

4 answers  ·  posted 8y ago by System‭  ·  last activity 6y ago by System‭

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Q&A Circumstellar Habitable Zone of an Orange Dwarf

I want to create a system orbiting an Orange Dwarf star, approximately 0.5 M☉. I've a 5-planet system, one of which needs to be within the habitable zone of this star; this planet will be 2 M⊕...

2 answers  ·  posted 8y ago by Raisus‭  ·  last activity 8y ago by Raisus‭

Question space
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Q&A How to justify evolution of a sapient hermaphrodite species

I'm looking for a very grounded evolutionary justification for the existence of a hermaphroditic sapient and social species, preferably roughly mammalian but not mandatory, which is not as easy as ...

6 answers  ·  posted 8y ago by dsollen‭  ·  last activity 8y ago by dsollen‭

Question evolution species
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Q&A Ways to make an alien viral plague scientifically hard?

Aside from resorting to a grey goo-ish nanoplague that kills indiscriminately regardless of biochemistry, how might an alien virus, bacteria or other pathogen still be dangerous to humans? Could a ...

3 answers  ·  posted 8y ago by Z.Schroeder‭  ·  last activity 8y ago by Z.Schroeder‭

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Q&A What conditions would support mercury as bodily fluid?

I got to thinking a simple throwaway thought on this video where this dude flushes mercury in a toilet (in a closed loop) For one thing, it's easy to think about the properties of mercury (mostly ...

1 answer  ·  posted 8y ago by armorhide406‭  ·  last activity 8y ago by armorhide406‭

Question chemistry
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Q&A Plausible way for the Sun to lose huge amounts of mass?

So, I'm writing a set of short stories (i.e. in the "Martian Chronicles" format). It was going to be centered around life on Earth through the sudden dissapearance of the Sun, but after surprinsing...

5 answers  ·  posted 8y ago by Fernando92‭  ·  last activity 8y ago by Fernando92‭

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Q&A Would humans outcompete sequential hermaphrodites?

I want to have a species based on humans, where everyone is born as female, but switches gender to male later in their life. Assuming that transformation takes 4 years (*) hermaphrodite is born as ...

5 answers  ·  posted 8y ago by Yuvato‭  ·  last activity 5y ago by Yuvato‭

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Q&A Suspension Vs. Cantilever--Which Bridge Will Stand Strong?

Our most iconic bridges can be categorized in two basic types: Suspension... ...and cantiliever. Here is the scenario in question: There is a straightforward (as in radiating out in cardina...

2 answers  ·  posted 8y ago by JohnWDailey‭  ·  last activity 8y ago by JohnWDailey‭

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Q&A How to feel objects outside of ones body?

A superhuman character in my book has the ability to sense objects outside of his body by simply being around them without touching them. There is some sort of field that extends outside of his bod...

3 answers  ·  posted 8y ago by totally not rick sanchez‭  ·  last activity 8y ago by totally not rick sanchez‭

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Q&A Could aliens naturally evolve synesthesia?

For all who are unaware, synesthesia is a condition in the brain where two or more senses are connected; for example being able to see sound or hear color. Of course they do not actually see color ...

1 answer  ·  posted 8y ago by Uncle Tres‭  ·  last activity 8y ago by Uncle Tres‭

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Q&A How to make the development and use of Steam Engines preferred over that of Combustion Engines?

Intro: I have gone some way to make airships more preferable over land-based transport in my beautiful conworld. E.g. making tunneling harder & making flying easier. Though there's plenty left ...

11 answers  ·  posted 8y ago by dot_Sp0T‭  ·  last activity 7y ago by dot_Sp0T‭

Question technology
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Q&A Fossils on the Moon: Panspermia meets Conspiracy Theories!

This is an answer I found while looking up random factoids. And it's gotten me wondering. ((If I should take down the picture, and just paraphrase the text, please let me know.)) Charlie here i...

1 answer  ·  posted 8y ago by Atlas the Worldbuilder‭  ·  last activity 8y ago by Atlas the Worldbuilder‭

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Q&A Can Global warming be counteracted by building a plant which creates Cirrus Clouds?

The Idea is to move large amounts of water vapor high into the Troposphere, thereby blocking some of the sun's intensity. Factors that contribute the Earth's solar heat gain include reflectivity/e...

1 answer  ·  posted 8y ago by RedOculus‭  ·  last activity 8y ago by RedOculus‭

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Q&A Can a terrestrial planet have a long lasting hurricane like the great red spot?

I want to create a terrestrial planet with a very long lasting hurricane similar to the great red spot, I assume the planet will have to be covered by ocean. Could there still be some small islands...

2 answers  ·  posted 8y ago by Stephanie‭  ·  last activity 8y ago by Stephanie‭

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Q&A Find a candidate for "planet essence"

In many stories, there is the idea about "planet essence" or something that: Can be extracted from the planet. Very useful for human industry once extracted. Has large reserve, but not very lar...

5 answers  ·  posted 8y ago by DTN‭  ·  last activity 8y ago by DTN‭

Question planets
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Q&A Temperatures in an eccentric orbit?

We see plenty of seasonal variation on Earth, due to the large axial tilt, but the Earth follows an almost perfectly circular orbit, so we don't get much variation as a result of that. What if we ...

4 answers  ·  posted 8y ago by Palarran‭  ·  last activity 8y ago by Palarran‭

Question climate planets
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Q&A A ship so powerful that aerodynamic design is not needed

Suppose there was a race of aliens who had created engines for there spaceships that could operate at any speed under light, and Hulls strong enough to withstand the crushing pressure of earths cor...

2 answers  ·  posted 8y ago by totally not rick sanchez‭  ·  last activity 8y ago by totally not rick sanchez‭

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Q&A Fleeing the solar system

It's the height of humanity's space-colonization golden age when casual interplanetary travel has become possible and humans have either colonized or established large space stations around nearly ...

5 answers  ·  posted 8y ago by Z.Schroeder‭  ·  last activity 6y ago by Z.Schroeder‭

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Q&A Skyscrapers on low gravity planets

Would it be easier to build Skyscrapers on a planet with 50% of Earth's gravity, and the same atmospheric pressure of the Earth. I noticed someone asked why the planet has lower gravity, this is be...

3 answers  ·  posted 8y ago by Stephanie‭  ·  last activity 8y ago by Stephanie‭

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Q&A Would there be any advantage for a rotating wheel space station to adopt mobius strip design?

I am wondering if there is any benefit for a rotating wheel space station to be based on mobius strip layout such as more rooms for growing population maybe because both side of the strips are popu...

2 answers  ·  posted 8y ago by user6760‭  ·  last activity 8y ago by user6760‭

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Q&A Could ships in space use a Steam Engine?

When in space, the amount of force required to move goes down drastically, due to the virtual lack of drag. In this environment, would be feasible for engines in space (more specifically belonging ...

15 answers  ·  posted 8y ago by Uncle Tres‭  ·  last activity 6y ago by Uncle Tres‭