Monster magnet meets monster laser...

Will a laser beam react to a very strong magnet? Will the electronics? And how about a laser show - will that react to a strong magnetic field? What if I send the beam through the electric field in a plasma ball? Let's find out!
My Patreon-page: / brainiac75
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Magnets except one 150x50 mm disc donated by: www.magnetportal.de
Show laser donated by www.wickedlasers.com
FULL MUSIC CREDITS
Time code: 0:00
Mix of two tracks:
1) Consequence by Kevin MacLeod (incompetech.com)
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2) Long Note Three by Kevin MacLeod (incompetech.com)
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Time codes: 0:53 + 5:57
Lightless Dawn by Kevin MacLeod (incompetech.com)
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Time code: 2:07
Outfoxing the Fox by Kevin MacLeod (incompetech.com)
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Echoes of Time v2 by Kevin MacLeod (incompetech.com)
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Time codes: 4:07 + 9:33
Peace of Mind by Kevin MacLeod (incompetech.com)
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Consequence by Kevin MacLeod (incompetech.com)
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All music above licensed under Creative Commons: By Attribution 3.0 License
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#MonsterMagnet #MonsterLaser #MonsterNerd

[@sabb2372]

I always feel welcomed whenever I hear him say hi.

[@wannabecarguy]

Can we agree that here on Earth we can test the theory of black holes.

[@mario7027]

His voice is very hygge.

[@darlenevillanoa9312]

I agree... :D

[@amanabrar4162]

Warm Danish accent

[@callmedima5885]

Hi

[@arenacloser7528]

Puts enormous magnet near complex electronic thing "Why does this shut down?"

[@jfjjrmfjg]

Lol

[@VoidHalo]

Not all electronics are affected by magnets. Just those which use parts that rely on magnetic fields for operation like motors or inductors.

[@CosmicEpiphany]

I think he is looking for something more substantial than "it was the magnet" i.e. specifics

[@Mohammad__M__]

Hi, and sorry for replying in unrelated comment(s):D ((What i explain is from what little physics i learned in electrical engineering, so if i went wrong, please correct me)) First: why light isn't affected by constant magnetic or electric fields: light is composed of varying circular electric and magnetic fields which generate each other, explained by maxwell's equations, which consist of only summation, multiplication, derivatives and integrals all of which are linear, and states that magnitude of each of them is proportional to the other's change in a time unit(d/dt) so if we add an extra CONSTANT magnetic or electric field, while in VACUUM, which is a perfectly linear media, we can use superposition: derivative of sums = sum of derivatives derivative of (varying fields of light + constant fields) = derivative of (varying fields of light) + derivative of (constant fields) and the last term equals zero, thus magnitude of varying fields is not affected by the constant fields. BUT if we use other media (not vacuum environment), then we are in non-linear conditions, thus no superposition, and magnitudes change according to extent of nonlinearity and magnitude of constant fields, where light dose get affected (an example being the "faraday effect" witch our friend, Marc G. Wathelet , mentioned) so light isn't affected by constant fields, but affected by "matter under the fields". And second: why do electronics get affected? well, our friends mentioned lots of possible reasons all of which make perfect sense, including magnetic mechanical parts like relays, affected inductors, and hall effect, on which i'd like to elaborate: duo to moving charges inside conductors being subject to force from magnetic field (orientations are important), the charges swarm to one side of the conductor, which will alter resistance, but insignificantly. yet, when it comes to semiconductor parts, the story changes: the magnetic field can push the tiny conduction channel and significantly affect all Field Effect Transistors (FETs) and disrupt anything like a MOSFET (which is used in virtually every electronic device, like hundreds of them in simple ICs to billions in CPUs) or delicate sensors. so given a strong enough magnetic field (like 100,000,000,000 Tesla from a magnetar 😆) any electronic circuit will malfunction, or worse... (being used as fuel for near-light-speed super-jets of it😆) en.wikipedia.org/wiki/Magnetar

[@JackieFrankieful]

@@VoidHalo yse like wooden hammer

[@la7yka]

Magnetic fields *can* influence on light/laser beams. Not as bending the beam, but as slightly change the polarization angle in the cross section area. This can be done with a polarized laser (or a random polarized laser with a polarizing filter as "polaroid"), a photo detector and a second polarizing filter. The effect is "Faraday rotation".

[@AngrySkyBandit]

I don't know if someone else mentioned it in the comments, but YOU CAN in fact modify the properties of light with a change in the magnetic field. It's called the "Magneto-Optical Kerr Effect" (MOKE). In short, when you shine polarized light on a magnetized surface, the polarisation of the reflected light will be affected. Based on the direction of the magnetic field at the point of reflection, the polarisation will turn.

[@spookayitsme]

So funny that after all these years you still haven't been able to disconnect the 2 magnets 😅

[@lexihancock5449]

Maybe a water jet could work🤔

[@modzio131]

6:50 that's how Comic Sans font was discovered

[@Alan.24]

wait seriously

[@loyal886]

6:49 And that's how Comic Sans font was discovered

[@loyal886]

Lmfao, I'm just playin yall, it felt necessary

[@AlucardNoir]

6:48 oh, so this is how MS got their Comic sans font.

[@NikhilSwamiExperimental]

so this is how people copy comments

[@salvobeats_]

@@NikhilSwamiExperimental oh, so this how people still care about copying comments.

[@NikhilSwamiExperimental]

@@salvobeats_ so this is how people care about people caring other people copying comments.

[@salvobeats_]

@@NikhilSwamiExperimental So this is how people reply to people commenting about copying other people

[@KC9UDX]

So this is a pseudorandom reply from nobody who doesn't care.

[@purplecat5w]

If you want to see the effect of a magnet on light you need the magnetic field to be parallel to the light path and the light has to be polarised, and the plane of polarisation is then rotated by the magnetic field, it is known as the Faraday effect

[@r100curtaincall]

Marc G. Wathelet yep. The Zeeman effect also takes place with magnets as well.

[@N4CR5]

And that's when you learn about TeO2, TGG in optical isolators. Nice comment!

[@stevestreeter4387]

So bar magnetic fields vs circular?

[@veronicagorosito187]

@@r100curtaincall and the Compton also? The Zeeman is interesting for it's quantum mechanics explanation. A professor told me 😊

[@svampebob007]

yeah I remeber watching a documentary about some old school nigga who was spending his time testing different crystals to see if light was affected by electro magnetism, and it was. Not sure if you can have it with "static" magnets, but his explanation of "light being a disturbance in the magnetic fields" would imply that you could affect the light by magnetic fields, and it's been tested to be true. Tough I don't think you'd measure any deviation, rather you'd see a shift in the spectrum or something. Source my ignorant ass with a Ph.D in miss interpreting google results.

[@MindGameArcade]

> Makes a video with a sponsored product *Destroys it*

[@LordCaledonFraszer]

I wish my science teachers had been as friendly and welcoming as you are, not to mention as knowledgeable and fun. I've learned (retained) more about science and technology watching your channel than I did in all my years in school.

[@RockPDX]

Standard schools seem to turn most interesting things into a boring, dry mess of a subject that would otherwise be fascinating. It's rarely a teacher's fault, they're forced to teach certain things in certain ways (blegh).

[@BAGELMENSK]

*"We're just throwing science at the wall here, and seeing what sticks."*

[@cezarcatalin1406]

The faraday effect: Am I a joke to you ?

[@DigGil3]

That's a change in the material's optical properties, not of the light

[@YHHyun]

@@DigGil3 right! Moreover, air property does not change a lot even in such a magnet.

[@la7yka]

@@DigGil3 No. It's a change of the polarisation.

[@88Shinto]

I like how you approach problems and how your humour makes the videos fun. Thanks keep up the good work.

[@noobishere2589]

3:30 I love how he say Brrrrright

[@suki4410]

I like how you think about what may happen, before it happens. This is so grown up and intelligent. Other people just do something and they get into deep truble or loose an eye for the show.

[@LtKernelPanic]

Nice! Super strong magnets and high power lasers together. I can appreciate the last test you did because I've done similar setups with my high power lasers and know how hard it is to get the shot you want while still being safe.

[@123philimo]

"...magnets will bite you beyong repair" :'D good one

[@DirtyLew42]

How did I get jumpscared by the intro lmao

[@pomegranatechannel]

You're my science ASMR channel. I usually fall asleep during and have to rewatch the day after. Also I've worked in this field. You are correct. Magnetic and electric fields don't affect photons "in vacuum". Maybe you already know about this but if not you can have look at here: en.m.wikipedia.org/wiki/Faraday_effect So maybe try in a medium like transparent solids or liquids next time and observe the effect.

[@doremon2006]

You forgot the Zeeman effect...

[@darenmiller2218]

Even in a transparent solid, wouldn’t the solid be affected and not the photons themselves?

[@Greg_Chase]

The discrepancy between three common physics beliefs is noted: 1) "A magnetic field is created by a moving charged particle" 2) "Electromagnetic waves have an oscillating magnetic field" 3) "The Vacuum of space is empty" It is hard to reconcile (1) and (3) when the common belief 'electromagnetic waves do not need a medium to propagate' is pondered. The presence of magnetic fields requires moving charges? But not the magnetic fields in electromagnetic waves. .

[@HalkerVeil]

I thought this was about bending light with magnets and doing highly detailed measurements of the beam.

[@sovietrussia3632]

Good luck bending light with a simple neodymium magnet.

[@RAP5428]

7:53 It shut down because you put two, '6-inch-mega-monster-magnets-strong-enough-to-pull-an-airplane-down' magnet near it.

[@elams1894]

As light could be dielectric, perhaps try exposing the magnets plane of inertia - bloch wall - plane of equillibrium, to the beam rather than just magnetic displacement.

[@berni8k]

You can affect air with a magnet however. Having a large difference in air density is needed to see the effect tho. This is why flames can be moved by magnets.

[@elams1894]

@@berni8k Re Flames: It would be interesting to see how the flame behaves when placed near the centre of the monster magnet face. It would no doubt accelerate in the direction of the magnet. Being paramagnetic, air would be in a lesser concentration at the centre of the face and in greater concentration at the edge.

[@SeongeunHyun-qs8fs]

@@berni8k I thought flame contains some amount of plasma thus can be moved by magnets. Could you elaborate more about what you are saying? I think I might have some misconceptions.

[@berni8k]

​@@SeongeunHyun-qs8fs @elams1894 There is a video on it: kzbin.info/www/bejne/gIeXd55pi7ONp9U The reason its not plasma is that just being conductive produces no effect in a static magnetic field. Its only changing magnetic fields that repel conductive objects (Like moving a permanent magnet or varying currents in electromagnets) trough the effect of induction that creates its own opposing field. Also this effect requires things to be very conductive (like metals) so more resistive materials like carbon don't produce much of an effect. Typically much hotter plasma than a candle flame is needed to make it really well conducting such as is seen in electrical arcs (Those can be pushed around by magnets really well due to current already flowing trough them) Since in the video he shows hot air being affected by strong magnetic fields this points to the diamagnetic properties of air changing with temperature. Likely some of the effect having to do with hot air having different density so there is less atoms of air to push around compared to cold air around. I think he can use his monster magnets to produce a visible effect on flame.

[@slashetc]

I was wondering since light waves have a perpendicular magnetic field if it could affect the polarization of the light. I don't think so as I haven't read or seen anything about that effect, but it's possible it requires a field that is so strong as to be impractical.

[@BrickThunder]

I think it would be awesome if you could buy a magnetic chamber with two strong magnets, one on top, one on the bottom, and when you put something that’s medal inside it just floats! That would be sick!

[@CraftAero]

8:53 An incredibly elegant explanation of a very complex concept... well done.

[@AluminumOxide]

Imagine bringing that monster magnet to the international space station!

[@alienozi]

That's asking for trouble mister

[@berni8k]

NASA and every other space agency would get very upset if you did that. So don't

[@bottlekruiser]

That would be an epic magnetorquer indeed

[@Refract404]

Bye bye international space station

[@furonwarrior]

Why not bring a bomb instead. At least you’ll kill everyone faster.

[@aarongreenfield9038]

I've been bitten beyond repair, but that's what attracted me to her in the first place.🧲

[@GreenBreeze]

0:46 “And powerful layers will burn you faster than you can blink” 1:16 *proceeds to point laser directly at camera*

[@TungstenCarbideProjectile]

cameras do not go blind

[@NebulonRanger]

@@TungstenCarbideProjectile Well, they *can* Extreme and consistent overexprosure can burn the CCD in a camera, but it requires a lot more than the human eye

[@efilwv1635]

This channel stands on the edge of a sliver future.

[@qislegit.donttrustthemedia6232]

wut?

[@efilwv1635]

Q is legit. Don't trust the media. I guess you’re not familiar with the 90s band Monster Magnet.

[@BuckeyeStormsProductions]

I was slightly disappointed there wasn't TransAm's, pyrotechnics, and dancing girls, but it was a good video anyway.

[@johnniewalker39]

9:01 best explanation of light i've heard, THANK YOU

[@Sonicgott]

In order to affect a laser beam, you’d need a pretty strong gravity field... like a black hole.

[@richardmondio7216]

That's correct. Only then it would disturb the ether and fabric of space.

[@g.ferreira6745]

@S the "puny" force of gravity is dependent on mass for it's strength, which means that the more mass something has, the more it's gravity will pull. That's why all planets in our solar system orbit the Sun, and only the Moon orbit the Earth. Based on this, black holes are simply incredibly massive and dense astral objects, which have an amazingly strong gravitational pull

[@g.ferreira6745]

@Justa Fool no, light is an electromagnetic disturbance- as James Maxwell said. Light is radiation, I hope you know that, and as such, it has it's wave's lengths (which causes different color spectrums in our eyes). What happens is that those waves are also electromagnetic waves, which are a propagating oscillation in the strength of electric and magnetic fields, caused by electric charges which have variant speed and acceleration. So, light is basically a wave of different lengths which causes disturbance in the electromagnetic field (this is, when we don't enter the quantum mechanics field ofc). A good example of this are Radio waves. They are the same light we see, only on a much larger wave-length, which isn't captured by our eyes. If you move an electric charge across a radio's antenna, you'll create radio waves of the exact same frequency as the electric charge! So light isn't electromagnetic by itself, it is an electromagnetic *wave*, a disturbance in the electromagnetic field caused by moving electric charges

[@g.ferreira6745]

@S of course not, you know why? Because a black hole and a neutron star are fucking ENORMOUS. There's no way you can replicate everything that happens in cosmos scale on earth, not only bc of size, but there's also a bunch of other factors, like vacuum, gravity, etc Asking to see a neutron star on earth is incredibly ridiculous and naive. And I don't see your problem with Einstein. He thought of the general relativity and then spent several years explaining it mathematically. What's wrong with first theorizing to then developing and explaining it with facts (mathematic)? If he (will use "you" for better explaining) was wrong in any way, it wouldn't matter, because if you do everything correctly but your main idea behind the math is incorrect, the math would be useless as it wouldn't connect with what you're trying to prove. All the math done is completely based on his theory plus known facts (acceleration, gravity etc), so if his theory was incorrect, it wouldn't work on real life (if you tried to calculate a planet's gravity using his math it wouldn't match with reality)

[@bigbunny6573]

Lol

[@enotdetcelfer]

I think this is the part that a lot of science misses these days. Experiments that show some intuition is all psychological. When I was a kid... I had an intuitive understanding of how microwaves worked... but it was wrong. And my dad didn't tell me i was wrong, so much as he said, ok, well let's try to put a lego block in the microwave. No water. Let's see what happens? and to my amazement and humbling, I grabbed a perfectly normal temp lego block out of the microwave. It was an important experience. I'm so glad this video is out there. People who want to be curious need to also have accurate intuitions. I think the important thing was to do the laser first, no effect, and then to show hey, if it were to effect a laser, it would effect a ruler too!~ and that's the missing piece. Why do we imagine an effect when we never see a magnet warping light in the first place. No mirage, no nothing. And I think it should be common on these media to take common misconceptions and have genuine experiments to have a contrary example. Anyway, great vid. Thanks!

[@Looter217]

These videos are like getting a science lesson from the Danish Mister Rogers

[@psygn0sis]

1:42 I KNEW IT! You're "Magneto" from the X Men.

[@Gwynbleiddsanity]

3:30 no ones gonna talk about this?

[@bubbly6379]

My heart rate spiked when you brought the magnet up to what *looked* like a giant metal box lmao

[@turpialito]

You got the projector to make Comic Sans! Cheers, mate.

[@JWH3]

I'm glad I'm not the only person that though this :)

[@jakekarreofficial]

1:21 OH NO I FORGOT TO PUT ON GOGGLES BEFORE WATCHING THIS VIDEO!

[@mrpokemon1186]

Yoink! Also I think the purple laser was affected in such a way because you cracked the crystal or something.

[@Eo_Tunun]

Your explanation for laser beam's immunity towards magnetic fields was bang on target. I wonder if the magnets might change the laser's plane of polarisation, though. There might be some effect there, maybe worth trying. I think you did show how you polarise candlelight with magnets yet, didn't you?

[@RAP5428]

5:57 Me: Yeah! A laser show for free!! 6:02 Me: Dude, ur blocking my path.

[@ewwqwerty5787]

Magnet=sleep Laser=me

[@gl1500ctv]

I guess technically your magnet did alter the path of the laser, if only because of the bending of the beam due to the gravity of the mass of the magnet pulling on the photons, aka gravitational lensing.

[@KarenB]

so gravity is magnetism?

[@yamahantx7005]

@@KarenB No, it isn't. The same logic says that the light is bent when someone is standing close to the beam, because of the added gravity from that person's body. We're splitting hairs here, like Cavendish did with the torsion balance experiment.

[@JWH3]

This is beyond splitting hairs, this his language abuse :)

[@gl1500ctv]

@@JWH3 I'll admit, it is theoretical as I can't measure such a deviation, but just in my head it seems that the mass of the magnet would make a deviation that is measurable at some scale larger than the planck length. So, one day we could measure such a change. Just have to move the wall that the beam hits back far enough that the beam has moved enough distance on the wall to be a measurable and repeatable observation.

[@JWH3]

@@gl1500ctv probably not, just because we already have better gravity detectors.

[@VoidHalo]

The only thing I can think of with the laser show that would make it shut down is maybe it has something to do with the Hall Effect interfering with the electronics. The motors also work with magnets, but you wouldn't think that would affect the actual operation of the lasers themselves. Beyond that, I can't think of anything specific.

[@alexs1154]

Take a piece of copper, preferably a cutout of a sheet. The Faraday effect predicts an imposed wave function over the light itself. This effect, as you probably already know, is called birefringence. The effect of holding the copper near the circumference of the magnet looks like fuzzy reflection at first, but hold it closer with a bright flashlight at 90 degrees, perpendicular with the field. The magnet becomes clearly reflective with a notch of dark bands above or below it. If you notice your magnet, it's not anywhere near as reflective as a mirror yet it starts to become one as the copper gets closer... Very cool effect.

[@mannys9130]

I have a question. :) What kind of target do you use when filming these videos with high power burning lasers? The beam was on for a long time as you moved the magnet around it on the floor, and I'm curious what was on the other side of your house that allowed the beam to hit it and not start a fire.

[@akshay884]

What about powerful magnets vs flying drone it would be a fun thing to watch a drone react to a 🧲

[@stevestreeter4387]

Grow up....

[@AttilaAntal]

So it seems the light's electromagnetic nature is a legend, until now nobody could demonstrate that. Tip: try the effect of a piece of Wolfram over a beam ;)

[@jifengzhang3863]

The reason why the bigger magnet shut down your laser is that it enlarged the scan angle too much and the galvos started to draw too much more current than the power supply's capacity (bigger angle = more current on the galvo's coil), so the output voltage from the power supply dropped from +/-24V to a very low voltage thus the galvos stopped working, which is why you still see a single laser beam but wasn't moving , that's because the galvo went dead just when the mirrors were at that angle. Cycle the projector power the power supply output regulator restored thus fixing it.

[@DonaldSleightholme]

could maybe try shining the laser through an electro magnet to see if that has an effect? 🤔🤷‍♂️

[@marstonboy1592]

I’ve always had the feeling that light is much more complex than we imagine... just think about the double slit experiment, when light is shined against two separated lines, a pattern of light-lines come out of the slits instead of two lines. This result changes when a particle detector is used. When the detector is used, the pattern of light lines disappear and two lines come out, like the photons or the light itself was alive or had awareness... Now, What if light is much more than just a wave or a particle? What if light is something else that covers both features but has many more that we dont understand? And are we ever going to understand what light and Quantum mechanics is? Talking with my physics profesor, he said something that’s actually kinda true... Us trying to understand the secrets of the universe and the Quantum mechanics is like expecting a dog to learn physics. Is out of the dog’s range and is out of our mind’s range.

[@potmadu4153]

True, not to mention the delayed choice experiment too

[@orii-raepoole5446]

3:46 "the closest shave you'll ever have"

[@judgedredd8487]

I am thuroughly impressed with your work on magnets and have learned a lot about the metals you have used in your videos. Nice work!!!

[@akshay884]

Powerful magnets vs bullets

[@7starla7]

🙏 Thanks for that comment

[@Elie-J-Saoud]

Done on another channel

[@GRBtutorials]

I’m guessing the show laser shut down because maybe the magnet is very close to the magnetic field sensors, and when it goes above a certain threshold, it shuts down to protect itself or something similar.

[@DJ_Force]

If light isn't distorted in an MRI, your permanent magnet doesn't stand a chance.

[@madbstard1]

Thanks for brightening up a dull Saturday evening.

[@tybo09]

Just once, I want to see one of these "monster magnet" videos contain the guy from Monster Magnet. :)

[@KevinPalencia235]

5:05 Nada! 😂

[@_Sakuto_0]

This word in Russian means " need ". I'm from Russia, I know that!

[@KevinPalencia235]

@@_Sakuto_0 In Spanish means “Nothing” xD. I'm from El Salvador y know that lol . Sorry for copy your syntax but it is so that you understand me better.

[@CalculoMental-jn6nt]

It means the same in portuguese

[@danielackles4265]

I know CERN uses magnets to bend their laser. However, this might be due to the fact that the particles they are accelerating (with/in/around the laser) have charge. IDK but I must get to the bottom of this. Thanks for your very satisfying video :)

[@specific_pseudonym]

You should absolutely do some videos combining different types of glass, the magnet, and the laser. A magnetic field may not change the path of light in free space, but it will affect materials, and the effect on some materials could be enough to observe using a laser and looking for say, a change in the beam's polarization as it passes through.

[@andersrese]

NOTIFICATION SQUAD, hilsen fra Norge :D

[@KClO3]

Xealz Hahaha lolno he’s from denmark

[@magnus2703]

Uganda ?

[@andersrese]

@@magnus2703 what?

[@Suge212]

That is one scary magnet. I'd be afraid to go anywhere near that thing.

[@inventor1978]

Thank you, your video great! Laser (reading is a laser or transmitting) is the abbreviations of the phrase of the light amplification by stimulated emission in English, which means "amplitude light by stimulating emission." At the quantum theory, in the quantum theory, the electrons existed in separate and discrete levels. The power of the distinct energy is increased. The power of the alkbert Energy is the most likely to be made available from the Albert Einstein, the cashewnes, the wires are available. The laser, the wireless lamp, the machine is on a laser,

[@orugacrest]

that "Hi" gave me a heart attack

[@orbitstrid3r]

That model car cabinet needs a bit of showcasing, looks really neat!

[@SuperStriker7US]

Put two Monster magnets on top of eachother with both of them facing the same pole and watch one float on top of the other.

[@pilliozoltan6918]

In the classical picture the key is your magnet has a static field, a constant background. Like increasing sea level has no effect on the waves. Also, it's important to understand, there is no magnetic field itself. It's always an interaction between moving charged particles (mostly electrons). And photons have no charge. But electrons can interact with both photons and magnetic field generated by other electrons, which leads to this device: en.m.wikipedia.org/wiki/Magneto-optical_drive Another, but not significant effect: according to the general relativity, static magnetic field has effect on the space-time curvature which has effect on the light. But it's negligible, and it's also related to the electrons, which generate the field.

[@NathanLouisGordon]

Please do another KZbin video where you measure the change in the spectral lines via the Zeeman Effect with your skills, lasers, and very strong magnets. This video attempted to measure lateral and vertical beam deflection with an applied static magnetic field; however, you never discussed the Zeeman Effect. Thank you for considering this request. And thumbs up!

[@oicub2]

If you're looking for the Faraday effect you'll find it on the street. Underneath the power lines to be precise. Notice how the Shadow from the power line is quite a bit thicker than the Shadow from the pole. Note, this effect can only be seen if there is a significant amount of power flowing through the power line.

[@Mohammad__M__]

Hi, and sorry for multiple replies ((What i explain is from what little physics i learned in electrical engineering, so if i went wrong, please correct me)) First: why light isn't affected by constant magnetic or electric fields: light is composed of varying circular electric and magnetic fields which generate each other, explained by maxwell's equations, which consist of only summation, multiplication, derivatives and integrals all of which are linear, and states that magnitude of each of them is proportional to the other's change in a time unit(d/dt) so if we add an extra CONSTANT magnetic or electric field, while in VACUUM, which is a perfectly linear media, we can use superposition: derivative of sums = sum of derivatives derivative of (varying fields of light + constant fields) = derivative of (varying fields of light) + derivative of (constant fields) and the last term equals zero, thus magnitude of varying fields is not affected by the constant fields. BUT if we use other media (not vacuum environment), then we are in non-linear conditions, thus no superposition, and magnitudes change according to extent of nonlinearity and magnitude of constant fields, where light dose get affected (an example being the "faraday effect" witch our friend, Marc G. Wathelet , mentioned) so light isn't affected by constant fields, but affected by "matter under the fields". And second: why do electronics get affected? well, our friends mentioned lots of possible reasons all of which make perfect sense, including magnetic mechanical parts like relays, affected inductors, and hall effect, on which i'd like to elaborate: duo to moving charges inside conductors being subject to force from magnetic field (orientations are important), the charges swarm to one side of the conductor, which will alter resistance, but insignificantly. yet, when it comes to semiconductor parts, the story changes: the magnetic field can push the tiny conduction channel and significantly affect all Field Effect Transistors (FETs) and disrupt anything like a MOSFET (which is used in virtually every electronic device, like hundreds of them in simple ICs to billions in CPUs) or delicate sensors. so given a strong enough magnetic field (like 100,000,000,000 Tesla from a magnetar 😆) any electronic circuit will malfunction, or worse... (being used as fuel for near-light-speed super-jets of it😆) en.wikipedia.org/wiki/Magnetar

[@TastelessCracker]

The background music is exactly my ringtone so I was going crazy the whole first minute or two wondering why I couldn't answer my phone lmao

[@TheOriginalElkstone]

I like how the safety goggles visually turn this into "Man pushes metal cylinder slowly across a carpet"

[@ab_ab_c]

Now you need to set up some sort of electric field to see how your laser light 'can' be affected. :)

[@feedmyintellect]

I very much appreciate your very careful handling of powerful lasers and strong magnets!!! As a science and gadget geek I love both of these and I refuse to buy them because I have respect for their power and recognise their potentially dangerous nature. So I watched KZbin videos of other people who have purchased such science toys instead. But I feel that most people don't handle these objects with the level of care that they need to be treated with. Thank you for the warning at then start of the video and for practicing and demonstrating safe handling of these devices!!!! 🙏🙏🙏

[@meme5546]

I am an electrical engineer and often work with new projects which are dangerous as well. It is never really dangerous because you respect the things you work with and the potential energy they may have. For that reason we have the discipline to prepare operational procedures. You first plan what you want to do, then a procedure to how to do it and then do a scenario analysis on the procedure to identify risk areas, then plan for eliminating risks. Like I have a gate-remote relay and remote as part of my tools, I would often stand way back and use the remote to turn a high power device on with fire extinguisher near by, place a fuse in electrical supply line, I may use variacs or I may even use timers to automatically turn it on and off in a second, then change the time to 5 seconds to ensure it make itself safe again. We use protective gear. We dont avoid danger, but we plan for it. Follow the rules of your plan. Then the most dangerous tasks are perfectly safe. Just keep the cowboys out of the room. Often people say failing to plan is planning to fail. in this way we can say if you dont plan for failure you dont have a plan at all. Assuming nothing will go wrong kills most people. You need to be aware of all that may fail and work it into the redundancy plan. Then your dangerous experiments may be safer than leaving your wife in the kitchen with a frying pan.

[@DavidJones-tp7td]

The show laser issue: the emf of the magnetic is vastly insufficient to affect the laser beam but would definitely be enough to disrupt the electron flow within the emitter.

[@SocratesAlexander]

if light can be bend by magnets, we wouldn't need any glass lenses or mirror lenses. moreover, we would see a distorted field around magnets, similar to mirages.

[@Manonsilvermountain]

Lack of interaction with magnet is due to photons having no charge. But if instead use an electromagnet source like a coil, things get exciting pretty quickly.

[@duckduckgo358]

I thought I was going to learn properties of light and this guy starts slapping laser pointers on magnets

[@mrdad1541]

That was cool. I didn't expect light to be effected by the strong magnetic field. But light is bent around very dense objects in space, like neutron stars or black holes. They create a gravitational lens allowing one to see what is behind the object. So, it light effected by the magnetic field, or the intense gravitational power?

[@Constellation3232]

When you slide the magnet under the beam, you have to focus on the light on the floor. You can see an irregular blocking pattern compared to a non magnet object of the same size

[@element4element4]

The Maxwell equations (U(1) gauge theory) are linear and photons (which make up the electromagnetic field and light) do not self-interact or in other words photons do not carry electric charge. They can however self-interact as a higher order effect, through the interactions with charged particles. But you have to find a special situation to see such an effect easily. The particles corresponding to other forces, like the weak (SU(2) gauge theory), strong (SU(3) gauge theory) and gravity (general relativity) do however self-interact and carry their own charges (which is energy-momentum density in the case of gravity).

[@element4element4]

Just realized that this was addressed a bit later in the video.

[@yamahantx7005]

Photons are not affected by magnets because they are not charged particles. We often say that photons transmit the electromagnetic force, but it's actually virtual photons which do this. These virtual photons can not be observed/measured. Only their effect on charged particles can be measured. Where we do see magnetic and electric effects on particles is in atomic spectra. Electron orbitals are affected by magnets (Zeeman effect) as well as electric field (Stark effect).

[@aetius31]

Good video but i think that a mention (or a test) of the Zeeman effect would have been appropriate.

[@JWH3]

Absolutely, that should be easily testable.

[@chrishughes3405]

Well thanks for the wiki search I now need to do 🤗

[@j0code]

1:19 Damn. I looked into the laser. Had better done what he said at the beginning of the video.

[@SerHalfrican]

Cool, so I can glue a magnet to my laser length finder.

[@jesseSager123]

HAH -- the fact that you have to not only load that baby up with 3 D batteries but it also has a key to turn it on -- that's some serious laser pointer.

[@gristlevonraben]

magnets affect polarity, or cause twists in lasers. That's about it. very cool video!

[@AD-el2qc]

3:39 When he shoots for the thumbnail 😆

[@greeneaglz2573]

The problem with seeing if the green laser distorts is you have no straight like to compare it with. Perhaps a chalk line (string with chalk held taught and then let go to form a line) or something straight the length of the beam would show a slight change.

[@wieslaw54]

That's what I've been waiting for. Thank you. I was hoping for the light bending...

[@notamouse5630]

The effects are not visible, however there are effects of magnetic fields in terms of spectral line width and line splitting IIRC for HeNe lasers. This effect is actually exploited to create spectrally pure lasers.

[@Seegalgalguntijak]

In order to "bend" light beams, it would necessitate some kind of metamaterials. They are being researched, although I don't know if they are already available to buy. If so, this would be the next great test for the big laser beams!

[@sarahskileth6925]

Electromagnetic Radiation is basically an electric field collapsing and forming a magnetic field which then collaspes into an electric field to infinitely repeating until it hits something

[@NurdRage777]

It could be also be the wire in the laser diode that's moving because of the super strong magnetic field.

[@beastybear4499]

To see an effect on the laser you would need to fine tune the environment, by sub zero and vacuum to increase the permeability of the field generated by the laser :)

[@dwalden74]

You’d have to pass a neutron star near the beam to see any effect. Further, if you shoot it through a liquid with different density layers you will definitely see bending.

[@tayaricoleman]

Unfortunately, the magnetic field is miniscule compared to the electric field in a laser beam, as far as I know magnetic fields can only effect the polarization (direction the electric field oscillates in). That would be an interesting experiment. Just pick up some quarter or half wave plates and check for leakage or absorption!

[@wonderofu8073]

Monster in the title gets you a lot views mate. This is gonna blow up my man!!! Great work keep it up :) 💪👌👍

[@laubmal]

you have the best job ever! would love to do things like this!

[@zUltraXO]

Haven't watched the video yet, so I don't know what to expect except good content Update: I think there is some sort of magnetic protection in that lasershow that made it shut off.