Questions tagged [science]

Questions about science and the perception of science in a fictional world. Use [science-based] for questions on how to explain fictional things based on real-world science. Use tags relating to specific fields (such as for example [space-exploration], [astronomy], [biology], [xenobiology], [mathematics], [sociology], ...) for questions relating to particular fields of science.

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8
votes
1answer
84 views

Would sedation treat a seizure?

Medical-related question for my science-fiction story. My character is in a facility with modern BUT limited medical supplies. This character is suffering from seizures due to withdrawal from a ...
4
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3answers
187 views

How to explain a planet with visible cosmos at daytime?

So I'm working on a fictional planet which would experience a daytime sky similar to this. This particular picture is from the movie Valerian: City of a Thousand Planets. Fictional alien atmospheres ...
5
votes
7answers
200 views

How would aliens abduct an entire nation of millions from a planet?

I am looking for as hard science answers as possible, but I am willing to bend some rules for a good answer. Assume they need to move 10 million 100 million people off of a planet what technology ...
2
votes
1answer
82 views

Could Megapodes be a Superior Food Source than Chicken?

The Megapodes are a family of birds in the galliformes order. They live primarily in Australia and are notable in being extremely precocial and laying more eggs than any other bird. They build large ...
6
votes
4answers
256 views

Possibility of changing universal constants to prevent cosmological events

Recently, I had an idea for a story in which a vacuum metastability event occurs. Would it be feasible in any way for an advanced civilization to alter the universal constants to prevent this or save ...
2
votes
3answers
68 views

Why would two similar power sources in the same promixity cause both to be unstable?

The law ofequivalent exchange states that for anything to be gained, something of equal value must be lost. This is the fundamental rule of alchemy. The philosophers stone is an item that allows ...
1
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2answers
120 views

Evolutionary advantage for recurve fang in dragons

In medieval times, news of dragons attacking the outskirts of the villages is flooding in. The King is losing patience. According to witnesses, these dragons can lift cows and occasionally elephants ...
5
votes
1answer
95 views

Could an alien species from lower gravity survive on Earth?

I remember reading this thing somewhere about how humans born in zero gravity environments would likely be taller than Earth-bound humans but also more fragile and unable to handle Earth's gravity ...
0
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2answers
89 views

How long could a plant live in a vacuum chamber [closed]

This was my science fair project that I haven't done yet and all I want to know is how long can a plant live in a vacuum
6
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5answers
2k views

What is the feasibility of an open air contaminant (carbon monoxide) for warfare?

Militia Y intends to burn massive amounts of wood in order to produce carbon monoxide to be used as an air contaminant in warfare. Defence: to be asked as a follow-up question. Time period: ...
0
votes
1answer
142 views

If humans stopped aging in their 30's or 40's, what would our average age expectancy be? [duplicate]

Answer this question however you'd like. Using the parameters and assumptions you like. This is more of a thought experiment. The gist of this is, if medicines allow us to live to be 300 to 500 years ...
5
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3answers
156 views

Cellphone that can cause a human to die [closed]

An evil cellphone factory distributed cellphone units that can cause instant death to a human. It was distributed to every adults in this world. The units will kill its owner by the ff reasons; The ...
3
votes
1answer
68 views

what are the signs and effects of two realities combined into one reality

I have posted a similar question where I asked how can two realities mix into one reality in which I received many helpful comments. I realise I should've expanded on the details I posted, so I will ...
14
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4answers
4k views

Could I build a nuclear reactor based on Bernoulli's principle?

So I was recently inspired by the answers that I saw on this stack exchange to the following question: Feasibility of H.G. Wells' Continuously-Exploding Atomic Bombs And it occurred to me that ...
3
votes
3answers
129 views

How much atmospheric nitrogen can we replace with other gasses without causing problems for human health? [duplicate]

I know we need nitrogen to live, but what happen if we reduce the proportion of nitrogen in air (replacing it with another substance)? What percentage can I replace without risking health of humans ...
13
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9answers
4k views

How fast does an antimatter bullet need to move to pierce rather than explode?

The environment is set in (ideal) space with no air for the bullet to interact with. It should encounter nothing until it reaches its target. The bullet is assumed to be a perfect sphere with a ...
4
votes
4answers
257 views

Would humanity go extinct if suddenly a parallel magnetic field of 1T fills the entire universe?

Imagine one day the universe becomes a bar magnet except all the line of force are running in parallel and the magnetic flux density is 1 tesla throughout, could this be a doomsday scenario for us? ...
4
votes
2answers
99 views

How would this alien sensory system function?

Now a change from dragon questions: Let's move onto aliens based on mythological creatures! Most land creatures on the planet of Antiquoloci have a strange sensory system in place of a nose, doing a ...
2
votes
4answers
307 views

Is this dragon anatomy viable?

The image is quite old so bear with me. This dragon is similar in shape and movement to a snake, with light-weight armor plating on its back. Flowers, which honestly look like antennae, blooming off ...
-4
votes
2answers
153 views

Did people have an idea of DNA in the 17th century? [closed]

I know that DNA was discovered later in time but during the 17th century, specifically around 1620 and onwards, would people have known anything about the idea of DNA? If so then how much would they ...
4
votes
5answers
236 views

Why would a human bomb not be blown apart by rune magic?

I am a homicide detective on the magical police force. Runes are magical symbols fused into objects that imbue those items with magical power. These spells are stored in these runes for long term use ...
0
votes
1answer
116 views

How can I integrate science and magic? [closed]

(third and last question in a span of a few hours, I hope I'm not breaking a rule) If in my world, magic is just "cosmic energy" or just energy that exists in the "gray area" of every atom, element, ...
2
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4answers
162 views

Transporting radioactive fuels

Imagine a light spaceship capable of traveling at 0.999c is tasked to tow a radioactive cargo containing millions of tons of polonium and radium, however the container holding the radioactive ...
11
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4answers
3k views

what makes a disease deadly?

I am writing a story, in which a mad scientist (based on Ted Kaczynski) wants to kill as many people as possible with an artificially created disease. The idea is, that more complex societies are ...
11
votes
4answers
1k views

Myelination in cephalopods

I am a complete amateur regarding biology, so please forgive me if this question is a little stupid. Could we ever create squids that have human-level intelligence and could serve as a replacement in ...
3
votes
8answers
474 views

Magic breaks the second law of thermodynamics. Why is the law still valid?

Around the twenty-first or twenty-second century, a scientific experiment finds that a certain ritual (they were trying to make cold fusion) causes a heat difference to appear in fluids. For instance, ...
-4
votes
1answer
117 views

Concerning magic and the replacement of the four traditional elemants with the four fundamental forces [closed]

In a world of magic where spells are not based on fire, water, air, and earth; rather, the electromagnetic force, the gravitational force, the strong nuclear force, and the weak nuclear force—How do ...
4
votes
4answers
223 views

A setting in which people have discovered all of science

So this is very loosely inspired by a theory I have about Star Wars as a setting, but it is not something they really discuss overtly even in the Extended Universe. One of the interesting things about ...
76
votes
5answers
12k views

How many cows would you need to drop on Mars to successfully terraform it?

The concept behind this lies in three primary points: It has been theorized that one could increase the heat of Mars' atmosphere to a suitable level by guiding meteors into the atmosphere and ...
12
votes
8answers
3k views

Pre industrial form of rapid mass transit over land

I have a world that isn't an exact analogue to medieval technology, closer to the late 1700s in terms of culture and agriculture/metallurgy, only without gunpowder. I have them ahead of real history ...
1
vote
4answers
233 views

What is a realistic based Situation in which a Dyson Sphere could be created?

I felt inspired, and I wanted to write about the future of our lives. Setting: If one had to guess, what year would we most likely be able to build a super-structure like a Dyson-Sphere around the ...
18
votes
4answers
6k views

Could you fly a Boeing 747 on Venus?

I have been making a future colonization scenario where people have vast colonies on Mars and cloud top bases on Venus. These things are unbelievably large. I've already thought of a way to travel ...
5
votes
1answer
169 views

how fast would a magic rail/coil gun need to fire to melt its tungsten bullet

In my story magic allows for the creation of accelerators that can multiply the speed of any object that passes through them. These accelerators allow for modified conventional weapons to fire at rail ...
4
votes
3answers
176 views

Unpredictable reactors which like to explode by default

In my world, alien 'reactors' are discovered that are very efficient at creating power (around 1000x better than fission), as well as requiring little fuel, making them the perfect power source. ...
25
votes
13answers
5k views

Moonlight bright enough to see by

Is it possible for an Earth-like planet to exist where the light reflected by the moon is, not as powerful, but close in intensity to daylight? And if so, what would be necessary for it? A moon much ...
0
votes
1answer
94 views

Theoretically, can two hearts be connected with a pump between them? [closed]

Like, if two hearts are outside of the bodies, could the two hearts be connected and function, using the blood from the people they came from, if the people had compatible blood types? The hearts are ...
-3
votes
3answers
228 views

How can the absence of the soul provide for immortality?

I am Yosef Mengalus, a mage and Philanthropist with an interest in studying the metaphysical. The soul is the core of the human being, and the seat of what makes a person "them". Personality, emotions,...
19
votes
11answers
5k views

A food item only made possible by time-freezing storage?

Premise: It's the modern day, and humans have various magical abilities through a runic magic system. One of these abilities, which I'm currently trying to visualize the implications of, is called ...
1
vote
4answers
494 views

How can I prevent soul energy from dissipating?

I am Yosef Mengalus, a dark mage who specializes in the manipulation of souls. A human soul is essentially raw mana condensed and shaped into form held together by various spiritual components. This ...
2
votes
1answer
148 views

Could a river be gravitating around a planet? [duplicate]

I am building a sort of space odyssey and I was wondering about something... In a DnD game I used to DM, Starfinder I believe it was called, there was this asteroids belt and in it was some sort of ...
7
votes
1answer
379 views

Can we scale down humans to the size of a mouse?

Can we make a human brain and body the size of a mouse’s while still retaining the same level, if not more intelligence? Like how tech has evolved to be smaller but more efficient or how cars are ...
2
votes
1answer
125 views

Venusian Adaptations

Recently I've been imagining living on a terraformed Venus in a distant future. I've a pretty good idea of how this can be done, having gone through many articles on how to terraform venus, so my ...
1
vote
4answers
254 views

Can a microorganism reproduce so fast that it can be used as weapon?

I've seen almost the same question here, but it was like Can a microorganism reproduce so fast, to be used as fuel?. Then, I was inspired and new question came up. Does some real microorganism in some ...
2
votes
3answers
323 views

What would be the strongest “realistic” bow draw weight with ubertech?

I'm trying to help develop a "high tech" bow for a video game, to be used mostly by prestige soldiers with ubertech against low-tech industrial civilizations as a kind of a status game; their enemies ...
10
votes
3answers
273 views

If we brought ancient germs to the present

If germs from the past was brought to the present/future on a person (or by some other means of transportation) and we have immunity to its descendants, like the modern germs for example, would we be ...
5
votes
2answers
264 views

What happens when a person with some edited genetics (like say, eagle eyes) reproduces with a person with regular genetics?

If person A has had the genes dictating their sight/ the internal structure of their eyes, replaced by say, eagle eyes or cat eyes. What happens when they reproduce with person B who has regular ...
1
vote
1answer
145 views

What would religious debates look like in a religion designed by a time-traveler to help mankind? [closed]

A time traveler, Roy, is marooned in the ancient era. Time and place are negotiable: ancient Greece, Roman Judea, ancient China, etc. There's no hope of getting back, but he's an intelligent fellow ...
9
votes
2answers
297 views

Is there a website that will run orbital simulations because I don't have a PhD in math

I'm just trying to write a RPG adventure for a sci fi company. So when I have to figure out what kind of orbits, masses, major axis, etc are needed for the system I need to design and I see: $T=2\pi$...
15
votes
19answers
5k views

Best Ergonomic Design for a handheld ranged weapon

I know I’m flirting with “Primarily Opinion Based” here, but I’m hoping there’s some established knowledge out there in the community that I might be completely oblivious to. If you look at pretty ...
12
votes
8answers
5k views

Surviving a planet collision? [duplicate]

Let's say there are two planets about to collide. Ignoring how they got there, it seems that in most scenarios basically all life gets annihilated by energy released the collision. How slow would two ...

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