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24 votes
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Why bother with planetary battlefields?

Because war isn't about destruction for its own sake, war is about doing, or sometimes simply showing you are capable of doing, enough damage to make the other side do what you want them to instead of ...
Ash's user avatar
  • 46.5k
20 votes
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Can I cause a star to go supernova by altering the four fundamental forces?

Yes, you can make a star go supernova by playing with the four fundamental forces. If you increase gravity, the stellar mass will be squeezed together more strongly, thus increasing the rate of fusion ...
Monty Wild's user avatar
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19 votes

How could breastfeeding/suckling work for a beaked animal?

Platypus is beaked and produces milk: Newly hatched platypuses are vulnerable, blind, and hairless, and are fed by the mother's milk, that provides all the requirements for growth and development.The ...
L.Dutch's user avatar
  • 292k
17 votes

Is a desert planet with a small habitable area possible?

How about a very deep rift valley? The surface could have a thin atmosphere, and continuous illumination from a cloudless sky. It would be hot and dry in the day and freezing at night, and the air ...
Richard Kirk's user avatar
16 votes

Is a desert planet with a small habitable area possible?

Nile River Have you seen a satellite photo of the Nile River? It is basically a small stretch of very green "forest", surrounded by very harsh deserts. Your world could be very old, with ...
André L F S Bacci's user avatar
12 votes

Why bother with planetary battlefields?

Bottled enemies could get ideas. They are afraid that an enemy held in their own system might research technologies to bypass the jump gate system. Why, until there were jump gates, people were ...
o.m.'s user avatar
  • 117k
12 votes

Could we control our personal reality

What you describe is functionally identical to what they call schizophrenia. You know that thing where, at first glance, you thought something was a spider, but on closer inspection it turns out to be ...
Robert Rapplean's user avatar
9 votes

Why bother with planetary battlefields?

The civilization isn't the people Yes, the major civilizations can contain the minor ones. They can deny usage of the Jump-Gates, and they can blockade planets from orbit. But then they are ...
Yakk's user avatar
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9 votes

Why bother with planetary battlefields?

Here’s a few reasons I could think of: Jump Gates are EXPENSIVE I’m talking too expensive to destroy without a really good reason. Unless the state is facing total destruction, it won’t be worth it to ...
RHF's user avatar
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9 votes

What are some plausible means for increasing the atmospheric pressure on a post-apocalyptic earth?

You don't need a higher overall atmospheric pressure, (you can have that if you want it but it's not completely necessary) what you really need is a higher partial pressure of oxygen. This has ...
Ash's user avatar
  • 46.5k
9 votes

Can I cause a star to go supernova by altering the four fundamental forces?

What's the cycle time on what they're doing? Because of it's fast enough you can make a mighty big boom by turning the gravity way up for a very short period of time. Everything rushes inward in ...
Loren Pechtel's user avatar
7 votes

Is a desert planet with a small habitable area possible?

Probably not. Your problem is oxygen. On Earth all but the most minute fraction of oxygen is produced by photosynthesis. And to achieve the current level of oxygen in the atmosphere there HAS to be ...
Mon's user avatar
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7 votes
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How could breastfeeding/suckling work for a beaked animal?

Same way as whales and dolphins. They (it is thought) use their tongues. They curl them into a tube and suck on the nipple. It may be the case too that the mother possesses muscles to actively pump ...
Escaped dental patient.'s user avatar
6 votes

Why bother with planetary battlefields?

Have slow system to system ftl travel Have it be possible for ships to do ftl travel much more slowly with system to system jumps. This means a primitive civilization can bypass jump gates and seek to ...
Nepene Nep's user avatar
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6 votes
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How would a cube-moon orbit a Cube-World with uniform surface gravity?

I'm not even going to try to work out the math, but the simple rules of thumb seem to me to be: The basic rules of "mass" still apply. All the mass within a sphere, regardless the shape of ...
JBH's user avatar
  • 127k
6 votes

How could breastfeeding/suckling work for a beaked animal?

Consider Trophic Eggs Instead As a non-mammalian alternative, consider having your grazers feed their young with trophic eggs - infertile eggs that are produced for nutrition. On Earth, many different ...
G0BLiN's user avatar
  • 3,667
6 votes

Can I cause a star to go supernova by altering the four fundamental forces?

The electromagnetic force, is essentially what keeps atoms apart. Lower, or remove that in a part of the core of a star, for a moment, and all matter in that area would be pulled into a single point (...
Michael Mortensen's user avatar
5 votes

How to Construct a Stellar Instar

Your "O" stage construct contains enough material for 5.5 "B" stage constructs, each of which contains enough material for 6 "A" stage constructs. Assuming the problem of ...
Christopher James Huff's user avatar
4 votes

Could we control our personal reality

Delusions of Grandeur Delusions of Grandeur are the belief that you are a person of extraordinary importance and/or having abilities that you do not actually possess. It can be a symptom of a wide ...
Nosajimiki's user avatar
  • 97.7k
4 votes

Can I cause a star to go supernova by altering the four fundamental forces?

And if we can turn off the gravity things get even bigger. A large neutron star can have half it's mass be in the form of binding energy. I think that if you turn off the gravity that mass will ...
Loren Pechtel's user avatar
3 votes

Why bother with planetary battlefields?

Technology The final segment of The Forever War by Joe Haldeman has the two species returning to far more primitive combat, with hand-to-hand weapons and bows and arrows. Dune similarly has everyone ...
Graham's user avatar
  • 20.9k
3 votes

Why bother with planetary battlefields?

RHF and Ash did a nice job, though here's a few more points that could help you get a reason for boots on the ground. Planetary missiles If the natives are capable of sending RKKVs, or even just ...
General_Ripper's user avatar
3 votes

How would weather on a Cube-World with uniform surface gravity behave?

This is a highly improbable scenario, which requires a lot of hidden assumptions to work, but lets roll with it. First of all, while the planet is a cube, there is no way to have cubic atmosphere (...
Going Durden's user avatar
  • 6,021
3 votes
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What are some plausible means for increasing the atmospheric pressure on a post-apocalyptic earth?

Yes The Earth's atmospheric pressure has likely fluctuated several times over history, though this field is particularly difficult to study and results have often been inconclusive and sometimes ...
penguinaut's user avatar
3 votes
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How many Consciousnesses could exist in a Matrioshka brain built around an O class star

As many as you want Any star system is mostly empty space, meaning that you can fit a lot of stuff in orbit. Normally, there are limits as to what would be stable long-term due to interactions between ...
Bubbles's user avatar
  • 2,105
3 votes

How would a cube-moon orbit a Cube-World with uniform surface gravity?

The mass distribution will affect either body, but only to a small margin not enough to change the orbit's shape visibly In fact, what we calculate as gravity force is actually an integral by volume ...
Vesper's user avatar
  • 8,215
3 votes

How to Construct a Stellar Instar

I would suggest that the easiest route is to start with a natural O-Type Star blue star, although technically at 100 Solar masses the O stage is bigger than any main sequence star we know of. Then use ...
Ash's user avatar
  • 46.5k
2 votes

What are some plausible means for increasing the atmospheric pressure on a post-apocalyptic earth?

Stable wormhole to the surface of Planet X, which has higher pressure than Earth, high partial pressure of oxygen, and giant monsters. There was another portal hundreds of millions of years ago and ...
g s's user avatar
  • 7,767
2 votes

What are some plausible means for increasing the atmospheric pressure on a post-apocalyptic earth?

Something like the Azolla Event would consume carbon dioxide and release oxygen. This happened when the polar ocean was isolated from the others. A modern equivalent could happen in Hudson's Bay if ...
Richard Kirk's user avatar
2 votes
Accepted

What is a fool proof future-world CAPTCHA test, given that AI can bypass current-day CAPTCHA's?

What you ask is for there to be an answer to Alan Turing's question of the Imitation Game. To date, there is no answer and no known way to formulate an answer. The only answer that can occur is for ...
Cort Ammon's user avatar
  • 132k

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