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Results tagged with science-based
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user 22020
For questions that require plausible (better than suspension-of-disbelief) answers based on Real World science that are not necessarily constrained to the known limits of Real World science. Contrast with the hard-science, science-fiction and internal-consistency tags. This tag may not be used alone. This tag may not be used with the science-fiction, hard-science, or internal-consistency tags.
4
votes
What will happen if there was no crust?
Well, everyone and everything that hasn't vanished falls 20 to 30 miles, and dies of that. The oceans fall less distance, because the crust is thinner there, only 3 to 6 miles.
If something miraculo …
- 24.6k
5
votes
What could cause toxic gas to shroud the world?
Let's get some rough numbers on this. Earth's atmosphere has a mass of about 5x10^18 kg. HCN seems like a good example of a gas that's deadly in low concentrations: the recommended upper limit for exp …
- 24.6k
1
vote
Is it possible that a Black Hole could be split in half creating two Black Holes?
I'm pretty sure this cannot happen. The most basic description of a black hole is an object so dense that its escape velocity exceeds the speed of light. The distance from the 'hole at which escape ve …
- 24.6k
2
votes
What would cause a ground-dwelling race to evolve for flight?
There's a timescale problem in this question. We tend to think about sapient races on timescales of tens to hundreds of thousands of years, because that's how long humanity has been around, but evolvi …
- 24.6k
1
vote
Effects of an Asteroid Aerocapture on Earth?
Assuming your asteroid is large enough to be interesting - tens of metres or bigger - and goes deeply enough into the atmosphere to lose significant velocity, then it would be seen as an Earth-grazing …
- 24.6k
1
vote
How would a giant, living, flying island evolve?
Well, the lifting gas is definitely hydrogen. Helium just doesn't show up in compounds that living creatures can access, because it doesn't form compounds to any useful extent. Hydrogen is relatively …
- 24.6k
3
votes
Could a being able to draw energy from its surroundings have increased strength?
Well, it doesn't have infinite energy. It has some limit on the rate it can gather energy, due to its limited surface area, and on the amount it can store, because of its finite mass. It also has a li …
- 24.6k
1
vote
How to force linear movement in space?
A fixed path through hazards that can't be bypassed is a very Hollywood sort of idea. To make it work dramatically, use a Hollywood villain, who tells the characters that they need to follow this spec …
- 24.6k
2
votes
Accepted
Size of a multi dimensional Labyrinth
Well, what you seem to be after is the number of 2D faces in an nD-cube? A 3D cube has six 2D faces, and a 4D cube has 24 2D faces. You can find a table and the mathematics here.
- 24.6k
3
votes
Would sharing a common written language reduce the severity of linguistic drift?
The example of Arabic suggests a common written language is not sufficient. Arabic speakers normally learn their local vernacular variety of the language as their first language, then learn Modern Sta …
- 24.6k
1
vote
Could the Deutsche Kaiserreich create a U-Boat with the following capabitities for the WWI i...
It should be possible to construct that submarine, although I'm doubtful that it can be done for the price. The bigger question is if it's actually useful?
The WWII-era Type XXI was built to be able t …
- 24.6k
4
votes
Possibility of male lactation as a nutrition-dense source for pregnant women?
This system would be extremely inefficient, and it's hard to see how it could be an evolutionary advantage.
The virtue of milk as a food is that it's easy to digest, especially for a baby's newly-star …
- 24.6k
0
votes
How to detect and track asteroids made of super-dense materials
The detection is much less of a problem than the orbital dynamics, but those can be managed.
Interstellar object!
Interstellar objects are very, very interesting. There are huge amounts of theory abo …
- 24.6k
3
votes
How can I make phonological constraints without strangling myself?
What are your objectives here? What use are you planning to make of the world you're constructing? The more you're going to expose your worldbuilding to criticism, the more work you're going to have t …
- 24.6k
9
votes
How does the atmosphere of this spaceship work if my brain doesn't?
While you have the science-based tag on this question, the answer is "you can't."
All sorts of hand-waving can be done if you don't require scientific plausibility, but while you do, there's no practi …
- 24.6k