Questions tagged [energy]

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

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36 views

Could there be something like the Higgs field which gives particles their energy in a similar way the Higgs boson gives particles their mass?

First of all, in no way do I have advanced knowledge of particle physics, quantum mechanics, or any other necessary scientific concept for a full understanding of this question. Secondly, this is ...
26
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10answers
9k views

Consequences of an Earth-size object hitting the Sun?

Suppose an extra-solar object the size and mass of the Earth, travelling at a speed of $26\ \mathrm{km/s}$, the same of ʻOumuamua (the first known interstellar object crossing our solar system), hit ...
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1answer
77 views

Feasibility of Flywheel-Powered Artillery

As far as it is known, Flywheels are extremely efficient in energy storage, with the best even able to replace even the strongest batteries. They are accelerated by electricity to extremely high ...
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8answers
4k views

What are some of the most powerful theoretical sources of energy?

So, in most sci-fi worldbuilding, there inevitably is a need for powerful energy sources to do all the magic, which simple energy sources such as burning coals, energy from the earth and possibly even ...
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3answers
120 views

What is the most efficient way of mining energy from a flare star?

Set in the distant future, human is transitioning to a type 3 advanced civilization on a Kardashev scale in about a hundred years or two. We have nearly exhausted the energy from our Sun and several ...
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7answers
311 views

How can an individual provide a higher quality of energy the more depleted it becomes?

Spells requires a certain amount of orgone for use in order to have an effect. The more powerful a spell is, the more it requires of its user. Most witches have a orgone level of under 100, with the ...
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2answers
100 views

What would be the effect(s) of high-speed plasma impacting a planet?

As a follow-up to this question, what would be the effect(s) of a high-speed of super-heated plasma entering and impacting on a planet? The planet is about the size of 1.2x Earth(s), with a similar ...
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2answers
118 views

How to keep a creature capable of matter/energy conversion from eating planets

So I've got this superpowered mutant superweapon created by some metallic race. It was meant to devour life on worlds in order to clear out areas for colonization, but stuff went wrong and it escaped ...
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2answers
3k views

Can gamma radiation be used to generate electricity on earth?

Since gamma radiation consists of photons, just like visible light does, albeit on a different frequency, isn't there a plausible way that in, say, 200 years into the future, we could harness the ...
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5answers
490 views

Would a magic-using society create living batteries?

Postulate My world has functioning magic which is capable of exerting kinetic effect. (That is, move objects, or generate heat, since "heat" after all is just motion at the atomic level.) It can't ...
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1answer
178 views

How can I achieve the results of Pompeii with divine energy?

Gods occasionally visit the mortal realm for particular reasons, such as certain festivals or to do battle against demonic forces in an invasion. In the case of the latter, a god has to be careful ...
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1answer
150 views

Just how powerful can Zero-Point Energy be, if it was mastered? [closed]

So, amongst multiple forms of energy production, Zero-Point Energy (or Vacuum Energy) is less often mentioned about. As of now, it is most commonly theorised to be best used for batteries that never ...
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5answers
213 views

How can i get around power limitations due to battery size?

My story has a few androids and some beings that can manipulate electricity with their bio battery electric organs and I want these characters to have the ability to shoot powerful lasers, plasma ...
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3answers
202 views

How much energy do plants produce?

Consider a magic system that follows the Eragon model; "doing it by magic takes just as much (biological) energy as doing it the mundane way". In Eragon, magical energy can be drawn from other living ...
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2answers
149 views

Life without a bright star?

The main source of free energy that allowed life on Earth to develop was our sun. It bombards the planet’s surface with photons of high energy, which provide activation energy for reactions necessary ...
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16answers
2k views

How to defeat an enemy that feeds off energy

I have a creature capable of absorbing all energy to feed itself. So efficient is it at doing this that the creature itself appears utterly black, since it absorbs all visible light. Its eyes are ...
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4answers
278 views

Is it plausible to to cover a desert in self-replicating solar panels, using only the materials found in the desert?

Silicon is the main material used in both computers and solar panels. Sand is silicon. Deserts have a lot of sand and sun. This may be an oversimplified way of looking at things, but could we ...
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5answers
188 views

Will it possible to transform thermal energy into electrical energy some day?

Thermal energy is everywhere on earth. If it could be transferred into electrical energy it could serve as a great energy source. This idea is violating the laws of thermodynamics. But it's not ...
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3answers
152 views

How can I meaningfully define the energy cost of magical levitation?

In the world I'm building, there is a form of "magic"¹ that effectively amounts to metabolism-powered telekinesis. In particular, there is a maximum power limit of approximately 20 W/kg relative to a ...
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3answers
152 views

Anatomically correct Kryptonian, part 1

Part of the Anatomically Correct series of questions. Due to the nature of Superman having so many different powers, I wanted to focus specifically on one aspect of his character: the ability to be ...
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9answers
1k views

What would be the most practical raw fuel for a hydrogen economy?

In a near-future world we have stopped directly fueling private, public, and mass transit and we have migrated to a hydrogen economy as the standard energy carrier. Consider the following factors: ...
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1answer
83 views

What would we see driving through a country or coastline of a distributed and hardened Hydrogen energy infrastructure?

I could describe the energy infrastructure of 15th century Holland by describing colorful windmills set up to drain swamps, saw wood, power woodworking mills, and process food. Dutch carpenters busily ...
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5answers
197 views

Generation ship “stealing” resources without acceleration or deceleration

How could a generation ship "steal" energy or resources from star systems which it passed without changing velocity?
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4answers
2k views

If Mars contains coal, will it become a dominant source of energy?

In the year 2099 A.D, humans made a major discovery. There is a rich source of fossil fuel buried beneath layers of Martian soil. It is estimated that the coal deposit that was discovered could fill ...
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2answers
87 views

Collect lightning energy [duplicate]

Lightning is an abundant source of energy.It is clean,huge and renewable.Is there any way to collect the energy from lighting,store it and reuse later?
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5answers
5k views

What would a life-form be like if it's antimatter-based

I've been thinking of the idea of creating and adding an alien species that's antimatter-based (being from a universe where antimatter became the majority instead of "normal matter"). However, I'm ...
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3answers
101 views

Viability of using temperature difference to generate energy on a tidally-locked planet

In Larry Niven's Ringworld, the Outsiders lie with one half of their body in the shade and one half of their body in direct sunlight and use the temperature difference to generate energy. Would this ...
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4answers
1k views

Would that heat-engine provide power to the colony on Titan?

I have an idea for an energy source for a colony on a cold world with not enough solar power. Is my idea workable, or is it debunked as perpetual motion machine? Here is the set-up and my plan: ...
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2answers
108 views

How much energy could be stored in an average human body using electric organs?

I have been playing with the ideas of electricity generating/attacks for my characters using either electric organs similar to electric eels or some sort of bio battery using bacteria that produce ...
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4answers
2k views

Energy manipulating superhero — how would it work

I want to make a superhero that can control all forms of energy. From what I've heard you can do a lot like, manipulate time and space, open blackholes, teleport, shape shift, and manipulate matter. ...
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1answer
99 views

How much energy would a character need to disassemble and reassemble thier matter?

I wanted to have characters that can control energy and matter, so Dr Manhattan came to mind as a great example of a character that does that. Information on him says that he has complete awareness ...
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3answers
172 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. ...
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3answers
247 views

How powerful does a chainsaw engine need to be to cut cloth and bone?

Chainsaws in games and films are an epitome of gruesome dismemberment. In Zombie attacks they are used to cut through cloth and flesh while in games they can dismember if not cut from skull to groin ...
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2answers
105 views

Can a turbine mechanism work to generate energy from a lightsaber/beam saber? [closed]

The turbine mechanism is surrounding a lightsaber or beamsaber like a sheath or scabbard on a sword, or like a cylinder tube. The turbine is inside the sheath and looks like a blade ring facing the ...
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2answers
62 views

Transmitting energy from the upper part of a space fountain using the stream of rotating masses

Imagine we have a sufficiently tall space fountain positioned at either of the Earth's poles, such that the upper station is permanently within view of the sun. A large array of solar panels could be ...
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4answers
158 views

Could two separate creatures' health, or life, be dependent on each other?

This is a question for an alien species. Is there anyway to scientifically justify having two separate beings/creatures that depend on each other for life? In other words, two separate bodies that ...
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4answers
148 views

Drawbacks of my Catastrophe Inhibitor

Warning lots of text ahead. The fluff: The story uses a Catastrophe Inhibitor (CatIn) to stop nukes, orbital bombardment and other such weapons from being the go-to method of defeating everything on ...
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2answers
173 views

A Magic System Based on Einstein's e=mc² Equation

I have been thinking about a magic system that is about "e=mc²". Main concept is it transforms certain kind of ink to energy it does this via runes and tattoos.(They could extract this ink from a ...
2
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1answer
130 views

Does a life form not using a food-based metabolism still need to saturate its cells with respiratory gases?

I've quite a few alien species that utilize a non-food-based metabolism (one of them being nuclear power). Does a species that has a metabolism not based-on plants or meat (such as using nuclear ...
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2answers
84 views

What could be a plausible scientific explanation for a man who can transform different parts of his body into different parts of reptiles?

Laws that must not be broken and/or worked around: Conservation of energy Conservation of mass Square cube law Thermodynamics No FTL Essentially, I'm trying to make a character with similar abilities ...
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9answers
3k views

How to heat a windmill ? (Mechanical to thermal energy conversion)

Finally, I have done it. I have bought a large and beautiful four bladed windmill. A smock mill to be precise, really high and all functional. There is the whole ancient machinery in it, completely ...
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4answers
160 views

Human colonies beyond Pluto (on a potential ninth planet)

To be able to colonize another world, there are some requirements; the harvesting of energy, enough recourses, handling of the environment (pressure, temperature and gravity and so on) and ...
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3answers
196 views

How could a creature derive energy from radioactive elements?

Have a creature that doesn't really need vitamins or minerals, it only requires energy which goes through a energy-matter conversion to build what it needs. Radioactive materials would be great ...
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2answers
91 views

Sewer gas energy?

The Wikipedia page on sewer gas states that Sewer gas can be used as a power source, thus reducing the consumption of fossil fuels. However, no references or ...
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1answer
4k views

How do I feed my black hole?

Strange title I know, but you'll understand why quickly. I wanted to use a black hole to create absurd amounts of power for hopefully obvious reasons (kind of useful). The problem with natural large ...
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13answers
5k views

Justifying the use of directed energy weapons

In my scifi setting I want a broad range of slugthrowers (bullets, smart ammo, grenades,...), exotic weapons (flame/chemthrowers, high tech blades, nano-bots,...), and directed energy weapons (heat ...
4
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3answers
239 views

What would it look like if a portal opened to a dimension with drastically less energy?

Imagine the other dimension is much much colder. Very little light/heat/etc. Suppose the portal only allows energy transfer, so matter can't pass through. What would the consequences be? Would it ...
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3answers
186 views

What energy sources could exist beyond fusion? [closed]

I'm looking for possible sources of energy that could one day replace fusion. I'm not necessarily looking for cool sounding names, as I'm trying to avoid technobabble, but ones that could somewhat ...
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2answers
220 views

Batteries for droids [closed]

In Star Wars (again), one of the most recurring characters is R2-D2. Even though he's in most of the movies, I (personally) have never seen him charging. I've seen him do a lot of power consuming ...
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2answers
198 views

Realistic Interstellar Energy Transfer

I've been reading some of the excellent answers on this question about galactic empires and it led me to imagine a reasonably realistic multi-system 'empire' might keep most or all of its population ...