B.fox
  • Member for 4 years, 2 months
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How can a moon have an ever-changing face?
17 votes

Unutterably Immense Aurora Borealis Credit: nasa.gov -- Aurorae on Jupiter If you don't already know, aurorae are electromagnetic spectacles caused by high-energy, solar-charged particles bombarding ...

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What torch-ship engine requires the least complex control system?
Accepted answer
7 votes

Nuclear Pulse Propulsion and Nuclear Salt-Water Rockets Of the other propulsion methods, these two seem to be the least complex. The other methods require control systems that dive into the operation ...

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Why would people living inside a nebula go into space?
Accepted answer
6 votes

We didn't really have much incentive to start space travel, besides war-driven purposes. We have trouble even nowadays convincing the public the value of space travel. We tend to do things that aren't ...

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Using magnetic fields to prevent a weaponized warp drive?
Accepted answer
6 votes

There is actually no problem here. The Alcubierre Drive works by moving the space already situated around the space craft. Nothing actually locally moves FTL. The missile moving under the Alcubierre ...

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What would be the working principle of these "airwalls"?
6 votes

If the city was constantly outputting atmosphere from some kind of generator, the heavier oxygen-nitrogen mix of gas would tend to gravitate to the surface. If you could create big blobs of atmosphere,...

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How can a planet have a deadly eclipse-like "spotlight"?
4 votes

Let's have some cosmic fun. Say that your planet orbits inside of an expanding red giant star. Yep. Now, say that someone or something decided to construct a shell around your world, perhaps before ...

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Let's plot a course between Earth and Gor
3 votes

The travel time is dependent on your $\Delta v$ budget. More $\Delta v$, the quicker you go. The bare minimum (least fuel costly) you can do is a $\Delta v$ burn arbitrarily close to Earth's escape ...

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How could one create mecha that could be controlled with one's mind?
3 votes

Neurological interfacing. If the human's purpose being inside the mech was only to control the mech, then you could train a human to simply use the mech as an extension of their own body. By reading ...

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Reduced gravity on surface of planet
2 votes

I posit cities (collections of homes) built within a rapidly rotating ring about the planet. In essence, and by your constraints of known science, what you want is to lessen gravity not in the ...

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Could an electromagnetic shield that keeps cosmic radiation work against a laser?
Accepted answer
2 votes

Not really. There goes this saying that you can achieve anything with brute force, and that applies here too. Light has a very, very, very weak magnetic field. Almost imperceptible. Electromagnetic ...

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Superluminal signal to past (alien technology)
1 votes

You essentially answer your own question in your own question. With our current understanding of the physics involved, GR, time travel seems on the table given some interpretations. If travsersable ...

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By what mechanism can lasers destroy an entire planet?
1 votes

To sum up my answer, a Death Star like laser would need to produce and transfer enough energy into a planet to coax the planet's core into producing fusion reactions. The outwards pressure generated ...

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Could we harness jupiter’s gravitational force to move the earth
1 votes

Not really. If you could make the distance between Jupiter and Earth shorter, then Jupiter's gravitational influence on the Earth would be closer, and stronger. I guess is that you could achieve ...

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Can a planet's axial tilt be changed by carefully planned and set high-energy explosions?
1 votes

Yes. If you create a powerful enough explosion that can jettison away enough mass at great enough velocities, you could alter the planet's axial tilt. Although, you'd probably alter a little more ...

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How can I leave most characters with strong psychokinesis unable to fly?
1 votes

I don't think it's possible. There are so many loopholes to the problem, I just don't think there's one solution that can close them all. Can telekinesis move air? They could wear a wing suit. In a ...

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How to slow down human discovery of new planets?
0 votes

I was writing a similar setting in a sci-fi story. In my story, I had humans slow their expansion by diverting resources towards terra-formation of the worlds they discovered. I kept Earth-like worlds ...

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Are there logical gaps in the periodic table in which you could insert a new mystery element for use as a fuel?
0 votes

Yes I'll keep my answer very short: https://en.m.wikipedia.org/wiki/Exotic_matter There are a lot of examples if you browse through the page, and there are a lot of unknowns regarding them. If you ...

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Where can I easily/cheaply get a hundred square miles of land for a new country?
0 votes

Terraform a plot of land on the Antarctic continent (drop a couple hundred thermal bombs somewhere, really get a patch of land heated up.) Build some sort of infrastructure that can maintain the ...

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In a future where lasers are the weapon of choice, why not wear mirrors?
0 votes

A laser is just a specific kind of maser. Adjust the wavelength of the maser weapon, and it'll eventually cut through anything. You'd need a kind of reflective device that can shift for reflection ...

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