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Rigorous Science

Posts tagged electromagnetism

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Q&A Magnet strong enough to rip the iron out of your body feasible?

Is it possible, given a strong enough magnet, to rip out iron based molecules out of the blood stream/body of a person/animal? Would such an event be the thing that kills someone or are there other...

2 answers  ·  posted 4y ago by Cazadorro‭  ·  last activity 4y ago by DonielF‭

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Q&A Could a creature using electromagnetic forces or something to do with ions fly?

This is a small arrow shaped creature that can fly without wings. Can it use electromagnetism to fly? Or maybe something to do with ions? Or however ufos are theorized to work? I'm not quite sure...

2 answers  ·  posted 4y ago by Chickenpeep Chickenpeep‭  ·  last activity 4y ago by Chickenpeep Chickenpeep‭

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Q&A Magnetic sail on rotating ship

I'm thinking about a design like this generation ship, which obviously has spin gravity. Would the fact that the ship is rotating affect the use of a magnetic sail? The magnetic sail as a sort of...

2 answers  ·  posted 4y ago by Adam Reynolds‭  ·  last activity 4y ago by Adam Reynolds‭

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Q&A Can magnetic fauna and flora on magnetic world knows gravity?

Imagine an Earth sized planet consists of only ferrous metals, the creatures living on the planet move around like a maglev train basically they interact with the world and among each other electro...

1 answer  ·  posted 4y ago by user6760‭  ·  last activity 4y ago by user6760‭

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Q&A How does an intelligent race which can only perceives microwave develops written language?

Imagine a race of humanoid alien living somewhere in the universe evolves weird sensory organ which can only picks up frequency of light ranging from 800MHz up to 2.5GHz which is in the microwave s...

2 answers  ·  posted 5y ago by user6760‭  ·  last activity 5y ago by user6760‭

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Q&A Mesas of hard(solid) light

I searched the site and found answers saying hard light can't exist. Apparently in the three years since the last question was asked, scientists started making inroads on making solid light a reali...

1 answer  ·  posted 5y ago by Firelocke‭  ·  last activity 5y ago by Firelocke‭

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Q&A Would nanotechnology-scale devices be vulnerable to EMP?

For the purposes of this question, let's use the definition of nanotechnology from the tag wiki excerpt: "technology that works with sizes of less than 100 nanometres". An EMP can vary in frequenc...

2 answers  ·  posted 5y ago by Canina‭  ·  last activity 5y ago by Canina‭

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Q&A What would a darkness effect capable of blocking all electromagnetic radiation probably do?

(As of 2020, February, the 19th, 12:23, I have decided to use a different method than the one originally proposed. The method itself answers the question) Imagine a spell an effect of utterdarknes...

3 answers  ·  posted 5y ago by Davi‭  ·  last activity 5y ago by Davi‭

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Q&A could a robot fly with powerful enough electromagnets?

The robot in question is a large, worm-like mining robot built for digging tunnels. It has electromagnets positioned throughout the segments of its body, for the purpose of pulling metals out of th...

4 answers  ·  posted 5y ago by Cobbington‭  ·  last activity 5y ago by Cobbington‭

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Q&A Can I improve internal combustion engine efficiency by slightly changing vacuum permittivity?

Energy released in an exothermic reaction depends on bond energies of reactants and products. Since molecular bonds are electric in nature, at the first glance, increasing Coulomb's force should in...

1 answer  ·  posted 5y ago by Alice‭  ·  last activity 5y ago by Alice‭

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Q&A What could make a star green?

Stars are never green. When a star's spectra "peaks" in the green range, it also releases a significant number of waves of the adjacent colors - so "green" stars appear yellow or white. I want ...

9 answers  ·  posted 8y ago by Zxyrra‭  ·  last activity 5y ago by Zxyrra‭

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Q&A How much charge would destroy the world?

Someone invents a machine that creates electrons. It takes in some electrically neutral matter, and produces electrons of equal mass.1 Let's consider two quantities of negative charge: $q$ is the...

1 answer  ·  posted 9y ago by abcde‭  ·  last activity 5y ago by abcde‭

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Rigorous Science Can a Planet's Electromagnetic Field Be Strong Enough for Wireless Electricity (Induction)?

Wikipedia states: "Electromagnetic or magnetic induction is the production of an electromotive force (i.e., voltage) across an electrical conductor in a changing magnetic field." This one ...

1 answer  ·  posted 5y ago by overlord - Reinstate Monica‭  ·  last activity 5y ago by overlord - Reinstate Monica‭

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Q&A How could you build an artificial planet-sized magnetic field?

I'm conceiving of a world where humans can readily terraform worlds that were once considered "dead" due to the planet's magnetic field being long gone. In such a situation, what could humans do t...

1 answer  ·  posted 5y ago by Richard Boone‭  ·  last activity 5y ago by Richard Boone‭

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Q&A Technology to see an invisible being

I have a world where there are two types of beings. One type, let's call them X, exist in our "dimension," and the other, let's call them Y, exist in another "phase" or dimension. Only 10% of X b...

6 answers  ·  posted 5y ago by Shalon Sims‭  ·  last activity 5y ago by Shalon Sims‭

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Q&A If global radio communications systems are disrupted, what is the alternative?

An event has occurred several thousand kilometers from the surface of the Earth. Let's assume some sort of tear in the universe has appeared, from which extra-dimensional or exotic energy is pourin...

3 answers  ·  posted 5y ago by Red Robin‭  ·  last activity 5y ago by Red Robin‭

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Q&A Creating flying cities

Writing about suspended cities within a planet's atmosphere! The story itself focuses on the air forces that fight for each of the hundreds of floating city states living in the sky, but that's her...

7 answers  ·  posted 6y ago by StarHustler‭  ·  last activity 5y ago by StarHustler‭

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Q&A What would a realistic plasma shield look like?

A follow-up to my previous question-barrage: Properties of magnetically confined plasma shielding After some of the feedback, I'm splitting it into several smaller questions. In the world I'm b...

3 answers  ·  posted 7y ago by Arvex‭  ·  last activity 5y ago by Arvex‭

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Q&A How can an optical signal be converted into a mechanical/acoustic signal without using electricity?

There are several ways to directly convert acoustic/mechanic signals into optic signals (e.g. opening/closing a shutter, or the acousto-optic effect). Is there any way to do the reverse, without us...

6 answers  ·  posted 7y ago by JanKanis‭  ·  last activity 5y ago by JanKanis‭

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Q&A Is it possible to use a planet's magnetic field for transportation?

On a planet, a species uses magnets (i.e. float in the air) instead of wheels for transportation. Roads are easy enough, just slap some magnets in it, at it works. But I was wondering about the f...

5 answers  ·  posted 7y ago by OneSurvivor‭  ·  last activity 5y ago by OneSurvivor‭

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Q&A Can the Meissner effect explain very large floating structures?

James Cameron's Avatar featured floating mountains which stayed aloft due to the Meissner effect; they contained large quantities of the room-temperature superconductor unobtainium, which, due to t...

3 answers  ·  posted 5y ago by SealBoi‭  ·  last activity 5y ago by SealBoi‭

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Q&A How damaging would a major solar flare induced EMP event really be?

With specific attention to national electricity power grids. Some pertinent details needed to answer the question might be. What parts of the power grid get damaged by such an event How do they...

1 answer  ·  posted 6y ago by Pelinore‭  ·  last activity 6y ago by Pelinore‭

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Q&A Carrington Event Shield

If a nascent colony world can be wiped out by a geomagnetic storm on a scale similar to the Carrington Event, what could the colonists build either in space or on planet to protect their electronic...

1 answer  ·  posted 6y ago by Electrocyte‭  ·  last activity 6y ago by Electrocyte‭

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Q&A Is it possible to create light emitting creatures using selective breeding?

Suppose I take a group of alligators select the ones that emit the highest frequency of radiation (since all living creatures emit thermal radiation), and I breed those, and get rid of the rest and...

3 answers  ·  posted 6y ago by ѕняєє ѕιиgнι‭  ·  last activity 6y ago by ѕняєє ѕιиgнι‭

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Q&A What size EMP device would be necessary to wipe all data in a Google-sized server farm, without major physical damage?

I'm not sure if it's even feasible, but I have a server farm in my book, of a size that puts it on par with Google's. I want to wipe out all the data stored on the hard drives, without destroying ...

7 answers  ·  posted 6y ago by John S.‭  ·  last activity 6y ago by John S.‭

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Q&A Landing Pad Using Lenz's Law

In my universe technology is advanced enough to have non-jet and non-rocket booster technology. For a disc shaped UFO all of the technology is crammed in the ship and there was no more room left ...

2 answers  ·  posted 6y ago by AdrienDaBoss‭  ·  last activity 6y ago by AdrienDaBoss‭

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Q&A Would interplanetary transmissions in the Wolf 359 star system be detectable by Earth?

Inspired by: How much electromagnetic transmission noise does Earth have to emit to be noticeable? Premise: Assume that the infamous Wolf 359 star system has one habitable planet and a second, hab...

2 answers  ·  posted 6y ago by JBH‭  ·  last activity 6y ago by JBH‭

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Q&A How much electricity could an iron core moon passing over a copper deposit on a planet generate?

Assuming the moon is the same size as ours and its core is generating a magnetic field, and the copper deposits are quite large, consisting of a tectonic plate containing huge deposits of native co...

3 answers  ·  posted 6y ago by Clay Deitas‭  ·  last activity 6y ago by Clay Deitas‭

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Q&A Applications of Electromagnetism in "Force Fields"

Lengthy Explanation of Why I'm Here: TLDR; "force field" made of electromagnetic radiation. Recently, I've decided to compile a list of possible technologies available in the 22nd and 23rd centur...

4 answers  ·  posted 6y ago by The Eye‭  ·  last activity 6y ago by The Eye‭

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Q&A Reasons why air travel isn't feasible, but ground travel is?

My story takes place on an Earth-like, inhabited world that is far larger than Earth, has roughly 110% of Earth's gravity, and has unusually high (and generally unexplained) EM emissions permeating...

21 answers  ·  posted 7y ago by Brian Lacy‭  ·  last activity 6y ago by Brian Lacy‭

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Q&A Could a species develop the tech necessary to land on their own moon without comprehending light?

Inspired by a brief comment converstaion found here. I would like to investigate the design and development of an alien species whose technological development did not include an understanding of ...

2 answers  ·  posted 6y ago by JBH‭  ·  last activity 6y ago by JBH‭

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Q&A How might an advanced civilization separate astronomical amounts of Magnesium Ions from astronomical amounts Oxygen Ions?

An advanced civilization collects enough Magnesium and Oxygen, from all over the Galaxy, to equal the mass of a star, and then reacts the Magnesium and Oxygen to produce Magnesium Oxide. The civil...

1 answer  ·  posted 6y ago by Anders Gustafson‭  ·  last activity 6y ago by Anders Gustafson‭

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Q&A How might a civilization artificially keep a supermassive black hole electrically charged for the lifetime of the black hole?

A civilization creates a supermassive black hole with an electric charge such that the radius of its inner horizon is 3/4 the radius of its outer horizon. In nature, a black hole with this much el...

1 answer  ·  posted 6y ago by Anders Gustafson‭  ·  last activity 6y ago by Anders Gustafson‭

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Q&A What could make a star violet?

Part of a series I'm starting since the recent What could make a star green? did quite well and others could use the information here in their worlds. There aren't any "violet" stars. When a ...

4 answers  ·  posted 8y ago by Zxyrra‭  ·  last activity 6y ago by Zxyrra‭

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Q&A If all the iron and nickel in the inner core was transmuted into gold over two weeks

If some kind of insane wizard began a ritual that would turn the inner core of the earth into gold, what would happen? Over the course of 15 days, the entirety of the core will become gold. Each ...

4 answers  ·  posted 7y ago by Piomicron‭  ·  last activity 7y ago by Piomicron‭

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Q&A How would two generational ships traveling at point eight cee communicate with each other?

In my story, I have two huge generation ships racing each other to another star system. Assume they are on an exactly parallel path, neck-and-neck, about one astronomical unit apart. They are trave...

4 answers  ·  posted 7y ago by Justin Thyme‭  ·  last activity 7y ago by Justin Thyme‭

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Q&A Using magnetic fields to prevent a weaponized warp drive?

I've been thinking of ways that an FTL-capable galaxy would prevent weaponized FTL missiles. Ignoring causality violations and paradoxes, I'm looking for a way to keep something based on an Alcubi...

8 answers  ·  posted 7y ago by Arvex‭  ·  last activity 7y ago by Arvex‭

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Q&A Creating a large electromagnetic field that prevents electronics from working

Would it be possible to create a constant EM field that disrupts electronics within it in a similar manner to the way an EMP from a nuclear blast does? Or would it be possible to have a planet wh...

1 answer  ·  posted 7y ago by Jonathan‭  ·  last activity 7y ago by Jonathan‭

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Q&A What conditions would cause electricity to create carbon monoxide?

I've been mulling whether the local gaseous makeup of air is changed by electricity running along a wire. My previous question is on hold, and this one is different anyway. I couldn't find exactl...

3 answers  ·  posted 7y ago by DPT‭  ·  last activity 7y ago by DPT‭

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Q&A How do passive, toggleable magnetic clamps function?

See, I'm a low-g cargo shipper by trade. We get all sorts of containers in all kinds of shapes that we need to fasten to the deck plating, and to do that we use magnetic clamps. Now, these clamps ...

3 answers  ·  posted 7y ago by Joe Bloggs‭  ·  last activity 7y ago by Joe Bloggs‭

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Q&A Would using Magnetic Coil Platforms be an effective way to transport people across Solar Systems

QUESTION So recently I was doing research on Magnetic Coil based weaponry in the Halo universe, and while reading about how the "Super Mac" worked, I noticed that the theoretical speeds at which t...

4 answers  ·  posted 7y ago by BattleDoge‭  ·  last activity 7y ago by BattleDoge‭

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Q&A What happens to asteroids when heated into a plasma?

I'm looking to build a scientifically plausible mining laser for my science fiction setting. The first approach that came to mind was a high-power laser that heats the surface asteroid until it bec...

2 answers  ·  posted 7y ago by Arvex‭  ·  last activity 7y ago by Arvex‭

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Q&A Effects of powerful superconducting rings on humans?

I recently came across this paper detailing a plan to use 12 superconducting rings around earth to strengthen our magnetic field. I'm planning on using this same idea for my own worldbuilding. An ...

2 answers  ·  posted 7y ago by NathanR‭  ·  last activity 7y ago by NathanR‭

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Q&A What are the specific effects of an EMP on electronics?

Within the next decade or two, Earth is attacked by an alien fleet. The various militaries have some forewarning and are able to destroy the attackers by launching most of their nuclear arsenal at ...

2 answers  ·  posted 7y ago by The Dark Canuck‭  ·  last activity 7y ago by The Dark Canuck‭

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Q&A Could a giant battery serve double duty as a sadistic acid bath?

Setting: In a fantasy setting much like World of Warcraft (where huge liberties are taken regarding the level of technological sophistication), an evil emperor rules from a castle in which there ar...

2 answers  ·  posted 7y ago by Aldaine‭  ·  last activity 7y ago by Aldaine‭

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Q&A Energy Transfer Through Space Without Adverse Affects

Perpetual motion doesn't exist... or does it? In space planets continuously spin around stars for trillions of years due to inertia and gravity balancing each other out. What if a race of brilliant...

5 answers  ·  posted 8y ago by mkinson‭  ·  last activity 8y ago by mkinson‭

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Q&A "Shields at 10% one more hit and..." What?

How do force field work in many sci fi fictional universes? I remembered the last time I checked the strength of the electromagnetic field a.k.a force field is proportional to the power output from...

14 answers  ·  posted 8y ago by user6760‭  ·  last activity 8y ago by user6760‭

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Q&A Can we identify distinct "colors" beyond visible light?

Let's talk about the visible light "rainbow" In almost all depictions of the electromagnetic spectrum, visible light is shown as a rainbow, and adjacent parts of the spectrum are monotone in color...

3 answers  ·  posted 8y ago by Zxyrra‭  ·  last activity 8y ago by Zxyrra‭

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Q&A Under what circumstances will magnetic levitation kill Average Joe?

After the WorldBuilding community helped Average Joe start his own microstate, Joe has become scientifically inclined, and uses his money to conduct somewhat dangerous research projects from...

2 answers  ·  posted 8y ago by Zxyrra‭  ·  last activity 8y ago by Zxyrra‭

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Q&A If electromagnetic waves didn't follow an inverse square law?

I was thinking of a hypothetical universe in which electromagnetic waves decrease in intensity with the distance instead of the square of the distance. What kinds of effects would that have on that...

2 answers  ·  posted 9y ago by Anders Gustafson‭  ·  last activity 9y ago by Anders Gustafson‭