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1 vote

Crafting a Water Cycle for a Cube World with State-dependant Gravity

Short answer Assuming that the only forces moving the water is gravity and the water interacting with its self (surface tension, air pressure...), then there are 2 ways it could happen. water becomes ...
Nyra's user avatar
  • 2,003
2 votes

Negative pressure projectile propellants (Alternatives to gunpowder)

I'm going to throw science-based to the wind The only chemical I know of that absorbs oxygen (not air... oxygen) is pyrogallic acid. Compared to what you need to make a slug an effective bullet, it's ...
JBH's user avatar
  • 124k
4 votes

Negative pressure projectile propellants (Alternatives to gunpowder)

Using suction to "pull" the projectile has one major drawback: as you suck at the projectile, you are also sucking at the air outside the barrel with the same but opposite force. The air ...
Going Durden's user avatar
  • 3,671
5 votes

Negative pressure projectile propellants (Alternatives to gunpowder)

As stated by the other answers, vacuums are a bad idea. However, consider this answer a loose interpretation of your final sentence. A coilgun "sucks" metal projectiles forward out of the ...
David Robie's user avatar
7 votes

Negative pressure projectile propellants (Alternatives to gunpowder)

This - or something adjacent to this - has been done before. Ultimately, there's no reason not to use regular propellant. Normal things explode just fine, and if you have the tech to make something ...
controlgroup's user avatar
  • 4,696
25 votes

Negative pressure projectile propellants (Alternatives to gunpowder)

It sounds like a poorly conceived idea. Reason? With increasing pressure you can go up as much as you want, the limit being the strength of your barrel. If 20 bar of up pressure are not enough, you ...
L.Dutch's user avatar
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3 votes
Accepted

UV radiation from conventional blasts?

If you are close enough to a large wood fire, UV radiation is the least of your concerns, even more for an explosion. There is an awful lot of IR radiation and heat which will probably kill you way ...
L.Dutch's user avatar
  • 289k
-1 votes

Can a cube-shaped(ish) world have uniform(ish) gravity when composed of ideal materials, including antimass?

Something that should be noted: with the appropriate distribution of antimass, you can make your Cubeworld behave (gravitationally) exactly like a spherical planet. The whole reason Cubeworld’s ...
controlgroup's user avatar
  • 4,696
6 votes
Accepted

Can a cube-shaped(ish) world have uniform(ish) gravity when composed of ideal materials, including antimass?

I suspect the answer is yes (for a rounded-edge cube), no anti-mass required, but it is in fact a surprisingly difficult calculation to deal with. You can search up questions about the gravitational ...
Anthony Khodanian's user avatar
3 votes

Is carbon-223 theoretically possible?

Carbon-223 possible? no. Nuclear drip line The drip line being the point passed which it is energetically favorable to reject the neutron or undergo beta decay. So anything beyond Carbon 22 will fall ...
Gault Drakkor's user avatar
16 votes

Is carbon-223 theoretically possible?

Atomic mass of the isotope In my story, there's an isotope of carbon with 197 neutrons. Carbon (as all light elements) is generally intolerant to high molecular mass isotopes. The "nuclear ...
Isoentrópica's user avatar
9 votes
Accepted

Is carbon-223 theoretically possible?

Carbon-223 can certainly not exist, a carbon atom with a mass number of 223 would not behave chemically like normal carbon (the bonds might be the same, but the kinetics would be very different), and ...
Christopher James Huff's user avatar
1 vote

What required secondary powers does my speedster need in order to be able to accelerate at 2,250 ft/s^2 without harmful effects?

She'll need the power of flight, or she will be incapable of accelerating that quickly regardless of her strength, simply due to balance and a lack of friction.
M S's user avatar
  • 2,356
2 votes

A smart way to ground yourself to help a person who is being shocked by electricity

Person B cannot ground themselves. They should seek to ground out the stream of electricity. I can't emphasize @AlexP's comments enough. It's a very bad idea to try and ground yourself when working ...
JBH's user avatar
  • 124k
0 votes

Genetic engineering as an alternative to magnetosphere (radiation protection)

The question is moot: a magnetosphere protects the atmosphere, not the surface life. Specifically, it protects water vapor in the atmosphere from being split by the particles of the stellar wind, ...
Christopher James Huff's user avatar
0 votes

Genetic engineering as an alternative to magnetosphere (radiation protection)

Instead of preventing cancer through genetic engineering which would be hard, difficult, and would take a lot of effort for 200 scientists; consider simply fixing cancer that occurs in between normal ...
Idan's user avatar
  • 673
9 votes

How disadvantageous would symmetrical, four-fingered hands be?

You're fine. Based on how humans actually grip things, they can do every grip humans can. If anything, a few grips might actually work better. The diagonal grip will be the only one weaker. You are ...
John's user avatar
  • 81.4k
16 votes

How disadvantageous would symmetrical, four-fingered hands be?

If you mean a hand a bit like this: then I don't think it would be of any significant disadvantage, so long as the fingers and thumbs had fleshy pads similar to those of human hands and the thumbs ...
Penguino's user avatar
  • 7,203
0 votes

Data storage on marble statue

If it is marble with lines, which seem to be almost random to the casual viewer, then you might adjust the edges of the lines microscopically with a laser. Compare the original marble lines with their ...
Line Item's user avatar

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