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Questions tagged [energy]

For questions about sources of power, generation, storage, how much is needed to perform different tasks, etc.

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3answers
66 views

How to compromise block chain force shield? [on hold]

Set in the distant future, a notorious terrorist group infamously known as "51 Crew" is planning an ambush near the orbit of Thebe, Jovian moon. In the next few hours an armoured shuttle holding a ...
7
votes
6answers
1k views

If curse and magic is two sides of the same coin, why the former is forbidden? [on hold]

A gun can bring destruction but at the same time save lives, both curse and magic belongs to different system and operates independently. Curse requires strong feeling such as suffering pain while ...
4
votes
2answers
128 views

What technology could cause a global black out?

In 2051 a Neo-Luddite movement known as "Amos"/"The Adherents of Amos" detonated some sort of weapon in LEO (low earth orbit) causing a global black out shutting down technology and to a extent modern ...
6
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5answers
262 views

Power Generation Using Undead

Say that we have many undead zombies/vampires/ghouls/whatever. I want to use them to generate electricity, because they never get tired, never need to take breaks, and can exert great force without ...
12
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8answers
3k views

How would an energy-based “projectile” blow up a spaceship?

I have noticed this in many fictions: during a battle between spaceships exchanging fire in empty space, a pulse of laser fire hits the hull and the entire spaceship explodes into many pieces. Is ...
4
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1answer
70 views

Increasing potential energy with ability thought experiment

While recently reading a physics textbook and thinking about magic systems, I tried to perform a thought experiment I had problems with concluding, so I thought of asking for help. Here I explain the ...
1
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0answers
42 views

What's the elemental form used in conjuring a super power/ability? [closed]

Example: kinetic energy used for psychic abilities and chakra for ninjas and so on. What more forms are there? If a knight(mage/magical knight) were to use his 'superpowers', what form of energy ...
3
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4answers
263 views

Regenerating Fuel Cell

I'm working on a powered exoskeleton design for my universe and I had an idea about how to power it. It works in this cycle: Water enters an electrolyzer powered by a massive betavoltaic battery ...
8
votes
4answers
188 views

How could dragons produce the energy needed to sustain themselves from gold

I'm currently contemplating ways to make dragons have a sustainable energy source in a medieval world, while still acting like the traditional soaring, adventurer grabbing, gold hoarding dragons (not ...
3
votes
6answers
218 views

Areas with high energy on an Earthlike world

In an earth-like world, what can I provide as examples of areas where high energy is generated naturally? I'm looking for sources of energy other than heat, for e.g, volcanoes and geothermic vents.
0
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1answer
151 views

What will it cost me to travel through Time? (Part 1: Travelling forwards in Time - Time Dilation)

There are many questions on Worldbuilding about what item(s) a time traveller should take back in time in order to alter past events or even simply to survive. There has never as far as I know been ...
0
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4answers
285 views

What would the effects be if all power grids connected to nuclear reactors abruptly suffered catastrophic failure?

To be more specific, I mean what if every wire, every power cable and transformer on the connected grids to the nuclear power plants all ruptured at once. The transformers literally exploding, the ...
4
votes
3answers
256 views

Could a more convenient form of energy transfer/storage than electricity be possible?

I was thinking about the progress that has been made in terms of energy usage for e.g. transport purposes and noticed how the prominent source of energy had changed over time: first muscle power, then ...
2
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0answers
63 views

How would fierce competition affect the adoption of alternative energy sources? [closed]

This is a continuation of the question asked here: How long would it take for nuclear energy to become adopted in a world on the brink of collapse? So, with my current timeline, nuclear energy (and ...
1
vote
0answers
52 views

Can Artificial Expansion of Space Facilitate Dark Energy [closed]

Granted, not much is known about Dark Energy. Indeed, it may not even exist. What we know is that something is driving the expansion of space (understanding we do not live in a Hubble bubble). This ...
5
votes
1answer
160 views

How long would it take for nuclear energy to become adopted in a world on the brink of collapse?

For reference, I'm going with the accepted answer given here: How would technology adoption of Lithium Air battery work?. In my world, it makes sense that governments would be very interested in ...
8
votes
7answers
530 views

Repurposing A Cargo Ship In A Post-Apocalyptic World

How would one go about repurposing a small cargo ship, no more than 50,000 tons, to run on an alternative fuel source/propulsion other than oil? And what alternative source would work best for ...
0
votes
3answers
136 views

how can I ensure that the amount of jing that a person has at birth is completely random?

Spiritual energy, or jing, is a powerful substance that forms the essence of who and what we are. It is the primal energy of our life. Jing is the deep foundational energy reserves of the body and it ...
5
votes
1answer
80 views

Could natural nuclear fission reactors be used to energetically sustain and catalyze the progress of an alien civilization?

According to Natural nuclear explosions natural nuclear fission reactors could occur. Could it happen that a primitive alien civilization has its social, economical and technology evolution ...
5
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10answers
2k views

What energy sources would a species use if they didn't have access to fossil fuels?

I'm designing an alien race that hasn't developed electricity yet. Now, one thing about their species is that they haven't discovered fossil fuels on their planet to use, like coal, oil, etc. (The ...
9
votes
6answers
992 views

What's a good way to classify railguns?

Most weapons and artillery are split by bore diameter, e.g. naval rifles of 203mm, 406mm etc. Railguns and coilguns probably won't be classified the same way, I think. Cause if multiple models use a ...
6
votes
2answers
163 views

I cast my stop-time spell and really, really, really want to punch my sworn enemy - which of these two scenarios is more believable?

I spent my life, my fortune, my family connections... I sold my children into slavery and my soul to Ilnarren... Wanted posters hang from from the Abyss of Shrondir to the expanse of d'o (most ...
2
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2answers
121 views

Cycle of Reincarnation - Bypassing the wait

Lets say for arguments sake, that a world, with maximum population of 5 billion, the common Joe gets reincarnated a few hundred times since the creation of humankind. This type of reincarnation is ...
2
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0answers
80 views

Catastophe inhibitor against WMD's [closed]

I want to have a catastrophe inhibitor (CatIn from now on) that reduces the effects of WMDs like nukes and kinetic impactors, but I do not want it to mess up other physics. It would be annoying if you ...
-1
votes
3answers
111 views

What would an infinite energy source actually unlock for our society? [closed]

Imagine some alien race anonymously "gave" us a Dyson sphere/swarm, and the means to channel the energy, in a way that means free electricity for anybody. What would actually change? It seems like a ...
13
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5answers
476 views

Solar recycling or: How to keep your star from dying

I was in the shower the other day thinking about the sun going Nova, you know...like you do, and a thought occurred to me: Could you turn the sun into a stable, mostly closed system? Some details ...
14
votes
5answers
501 views

How much energy did it take for God to part the Red Sea?

EDIT Why this is a world-building query. If I had framed this as, "In my world where magic requires the expenditure of energy, a powerful wizard decides to open a path through a large lake,etc. The ...
9
votes
2answers
332 views

Cost of electrolytic hydrogen

Working on a future history setting; the question arises, since the world cannot run on fossil fuels forever, one way or another, something must end up replacing them; what will that something be? A ...
1
vote
2answers
202 views

Almost realistic way to beat entropy [duplicate]

Entropy will eventually mean that the universe will have send all its energy outwards in the form of light and other radiation, leaving the remaining matter in the universe cold and inert. I'm trying ...
6
votes
3answers
245 views

On the viability of living balloons

This is not a question on whether or not floating, balloon-like organisms are biomechanically viable - I already know the answer to that, which is yes. This instead deals with the plausibility of such ...
11
votes
13answers
6k views

Hypothetical energy source with higher output than Dyson Sphere

For my Science fiction and Fantasy genre book, I need an energy source whose energy output should be much more than even a fully functional Dyson sphere. Can you please suggest some hypothetical ...
6
votes
3answers
210 views

How to transmit energy through rock and store it in crystals?

I have created a species that is basically a sort of land coral covered in a thick carapace made of rock. They live on an Earth-like planet (Class M as they say in Star Trek) and behave like coral ...
5
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3answers
233 views

Sea pumps to create rain using windmills to control weather?

I'd love some science advice and facts for this question: If they use wind power to bring up water from the ocean in the day time and spray it on prevailing winds going into land (i.e. 10-15 km from ...
0
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3answers
274 views

Incomplete Magic System [closed]

I am looking for help on my system of magic spells and spell casting. The system is made up of three parts; your alignment, your element, and how those two interact. Alignment: Your alignment works ...
1
vote
1answer
63 views

Would these metabolisms be realistic for this ternary system?

First question: Would this simplex ternary system be stable? If that question turns out to be yes, how would an organism based on carbon tetrachloride use the energy types below to provide enough ...
6
votes
5answers
419 views

How would I gain energy from a rotating planet?

A rotating object, especially something as large as a planet or a star, has kinetic energy. However, my question is how would you go about harvesting the energy the object has from rotation to go ...
3
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7answers
2k views

Is it hypothetically possible to create a giant levee that is a non-physical forcefield or electronic membrane?

What examples are there in science fiction of molecular shields that can cancel out or "eat" certain molecules--and are they plausible? Is it hypothetically possible to create a giant levee that is a ...
1
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0answers
87 views

Physical Force Generation- Applications, weaknesses, and the science behind it [closed]

I've been developing this anti-hero, "Vicious," for a few weeks now- but I need some help concerning the specifics. Vicious has an ability known as "physical force generation." From any point on her ...
13
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5answers
517 views

How might kinetosynthesizing “plants” look?

Suppose that there is a moon, orbiting a gas giant, and that gas giant is a rogue planet - it moves freely through the universe, unbound by the gravity of a star. This means that one, the moon will ...
5
votes
6answers
270 views

Looking for a way to power a locomotive in a pseudo-1600s fantasy world

Assuming a world where there were no steam engines available, would it be possible for large passenger or cargo trains to exist? Would it be possible to use horse-engines to power a locomotive? If ...
6
votes
5answers
250 views

How might a medieval fantasy/magic-using society state the 2nd law of thermodynamics?

If a medieval-level society with access to things like magic (which itself follows the laws of thermodynamics) were to have some understanding of the laws of thermodynamics, how would the 2n law be ...
0
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2answers
349 views

Schools of magic based around energies, not elements [closed]

The classic approach of categorising magic spells based on a variant of elemental groups a well-established trope, but has never had me particularly convinced. We're used to seeing Earth, Wind(or Air)...
1
vote
2answers
104 views

How to process crystal based source of energy into liquid form? [closed]

I start to write sci-fi story and there's a chapter where a mining plant will work with this source of energy called Extrenum. This energy was taken out from crystal rocks material but I wonder if it ...
2
votes
1answer
159 views

Viability of animal plant? (Energy calculation)

I'm trying to design a humanoid or anthropomorphic organism that would be classified as a plant. The main argument people mention is that it wouldn't be able to produce enough energy to survive. I've ...
7
votes
5answers
223 views

Backing Futuristic “Credits” with Energy?

A lot of worldbuilders that I know and have spoken too, insist that unbacked currencies and items with constantly changing values would be what the economy is based on. I, however, am skeptical of ...
8
votes
3answers
248 views

Is it possible for an organism to convert magnetic radiation into a sustainable energy source?

For backgrounds sake, let's say that there are large, and I mean large beings living underneath the icy surface of Europa. Now consider this excerpt from NASA's page on Europa: One of the most ...
2
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2answers
185 views

How much energy would be required to vaporise a giant reptilian monster?

At the climax of my story, the main antagonist transforms into a gigantic and nigh-unkillable monstrosity that resembles an unholy hybrid of a crocodile, Mosasaurus and Dimetrodon. After a long and ...
3
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1answer
145 views

What are the limits of energy density? [closed]

I'm writing a story where in the future bullets have become obsolete as batteries have become cheap and very energy dense, so much that making defensive lasers that are able to vaporize bullets before ...
0
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1answer
154 views

What is the smallest theoretical energy generator possible for generating huge amounts of energy? [closed]

There are the examples of the Dyson sphere or the black hole bomb but those are too big. Is there any other source of energy you could theoretically contain on earth that wouldn't crush it or us down ...
0
votes
1answer
95 views

Can an Earth like planet support life by building a Dyson Sphere across a White Dwarf or a Red Dwarf star? [closed]

Is it possible to depend on a white dwarf as our power source, provided that we harness 99% of energy? Can life be sustained? How it will change the climate and the seasons of earth if it is our ...