A Permanent Magnet That Turns On and Off

Ғылым және технология

In this video I show you how it is possible to have a permanent magnet that turns on and off with the flip of a switch. I show you several ways that a magnetic field can be blocked.
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*Any experiment you try is at YOUR OWN RISK. The Action Lab assumes no responsibility for any injury if you attempt anything you see in this video or on The Action Lab channel.

Пікірлер: 2 700

  • @darkhound6461
    @darkhound64613 жыл бұрын

    Next video : turning off and on gravity.

  • @user-kz8wu8yk8c

    @user-kz8wu8yk8c

    3 жыл бұрын

    Ooo i would like that 😂

  • @En_theo

    @En_theo

    3 жыл бұрын

    It happens on Lagrange points between the earth and the moon, their gravity cancel each other.

  • @rhythm5080

    @rhythm5080

    3 жыл бұрын

    You need data from inside the black hole to do that. Someone call Matthew Mcconaughey quick

  • @Person-fk1rm

    @Person-fk1rm

    3 жыл бұрын

    If this is true Newton will be disappointed

  • @darkhound6461

    @darkhound6461

    3 жыл бұрын

    @@rhythm5080Mickey Pearson(gentlemen 2019) is busy man , we need kipp thorne for the data.

  • @sweetseremine
    @sweetseremine3 жыл бұрын

    my magnet doesnt work :( "have you tried turning it off and on again?"

  • @Souvik_Dutta

    @Souvik_Dutta

    3 жыл бұрын

    Thank you...It worked!!

  • @Theguywhokilledkennedy

    @Theguywhokilledkennedy

    3 жыл бұрын

    What about rice

  • @paskalkolev

    @paskalkolev

    3 жыл бұрын

    IT Crowd 😃

  • @nowonmetube

    @nowonmetube

    3 жыл бұрын

    *off and on Not the other way around

  • @InquiryAI

    @InquiryAI

    3 жыл бұрын

    Underrated comment.

  • @mickmuzzmkmz1628
    @mickmuzzmkmz16283 жыл бұрын

    I have seen this "switchable" magnet system on a portable drill press which uses magnets to attach itself to whatever steel item you are drilling, in my case, a large "I"beam. I was intrigued by the way it could be switched on or off just by turning a dial on the side, and now I know how it is done thanks to you!😉👍

  • @joldback

    @joldback

    2 жыл бұрын

    Actually magnetic base drills are electromagnets.

  • @johninni4844

    @johninni4844

    Жыл бұрын

    old drill bases use a different method ..... There is another way to do this , old Machine shop magnetic bases use a round magnetic inside of steel cube with 1/4 inch of non ferrous brass separating the two Steel sides.. When the north -south poles of the magnetic are aligned n the brass the magnetic field / flux completes the path shunting the the magnet = Off condition . Switch On by rotating so north-south poles are aligned to the steel . The NIB magnet ( Neodymium ) design seen in the video has a more powerful holding force than the the old base but old Machine shop magnetic bases are still sold so must be cheaper.

  • @mellertid

    @mellertid

    Жыл бұрын

    A variant I've seen on stationary machines is alternating brass and steel plates, and the magnets slide to align under the steel (to engage) or brass (to release).

  • @jamesshelton308
    @jamesshelton3082 жыл бұрын

    I've seen these used a lot in machining for things like holding dial indicators and have always wondered how they worked. Thanks for the info.

  • @namename8004

    @namename8004

    2 жыл бұрын

    You're probably using an electromagnet.

  • @crowellsteven84

    @crowellsteven84

    Жыл бұрын

    @@namename8004 I'm aware of what he's talking about because of past experience in machining. They're not electromagnets they are actually switchable magnets. When you turn the switch it rotates the magnet in side the base thereby switching the polarity of the magnet.

  • @raydunakin
    @raydunakin3 жыл бұрын

    To me, the most amazing thing in this video is the revelation that there is magnetic "paper" that lets you see magnetic fields.

  • @madallas_mons

    @madallas_mons

    3 жыл бұрын

    My guess is that it has fine iron powder inside but that's just a guess. Someone please correct me if I'm wrong

  • @rhaib

    @rhaib

    3 жыл бұрын

    @@madallas_mons you are correct

  • @h7opolo

    @h7opolo

    3 жыл бұрын

    Magnetic field viewing film is made up of tiny sacs of nickel filaments, not iron, suspended in oil embedded in plastic film.

  • @Infinixel

    @Infinixel

    3 жыл бұрын

    Yeah

  • @zgo280

    @zgo280

    3 жыл бұрын

    @@horus2779 dip into some Ken Wheeler

  • @ks0ni
    @ks0ni3 жыл бұрын

    The dislikes are from the electromagnets.

  • @bh4vvy33t

    @bh4vvy33t

    3 жыл бұрын

    Likes are from the natural magnets who enjoy evolution

  • @sandeltra

    @sandeltra

    3 жыл бұрын

    Reason: For killing their kind

  • @cfusername

    @cfusername

    3 жыл бұрын

    They should pull themselves together and deal with it.

  • @FedeG86

    @FedeG86

    3 жыл бұрын

    It's because they got stuck watching this video. :v

  • @whitepirate4098

    @whitepirate4098

    3 жыл бұрын

    28 magnets

  • @kimmyhollis5245
    @kimmyhollis5245 Жыл бұрын

    I'm a welder and these things were a game changer, they help with everything from fit up to simply being a mag vise for easy grinding. the company I worked for owned them and I haven't used them since (there's priorities for my money to disappear to) but I've been looking forward to buying a set of them again

  • @TheZebinatorofficial

    @TheZebinatorofficial

    Жыл бұрын

    I'm a welder too and we use switchable magnets for lifting plates on the cranes we use

  • @johnblasik9647

    @johnblasik9647

    11 ай бұрын

    Amazon has them.

  • @radiowaved
    @radiowaved2 жыл бұрын

    Beautiful simplicity on that switch design -- thanks for breaking it down so cleverly.

  • @wow5212
    @wow52123 жыл бұрын

    Did not expect turning off magnets would require more magnets.

  • @sandeltra

    @sandeltra

    3 жыл бұрын

    Its like love triangle lol

  • @69k_gold

    @69k_gold

    3 жыл бұрын

    Science

  • @Lambda_Ovine

    @Lambda_Ovine

    3 жыл бұрын

    It's incredible

  • @iMadScience

    @iMadScience

    3 жыл бұрын

    I used the magnet to destroy the m...

  • @markylon

    @markylon

    3 жыл бұрын

    not necessarily you could use one magnet and cut it in half

  • @KingCarrotRL
    @KingCarrotRL3 жыл бұрын

    The one time that "reverse the polarity" is the correct answer.

  • @anklihlaanlestrange4881

    @anklihlaanlestrange4881

    3 жыл бұрын

    That one quote from Doctor Who

  • @gabrielbennett5162

    @gabrielbennett5162

    2 жыл бұрын

    Jon Pertwee would approve. 😛

  • @StarrDust0

    @StarrDust0

    2 жыл бұрын

    hahaha

  • @robertnett9793

    @robertnett9793

    2 жыл бұрын

    @@anklihlaanlestrange4881 Huh? I thought that was the standard-solution for every other problem in StarTrek. The other solution being: Kirk punching / romancing it.

  • @WillCrawford0

    @WillCrawford0

    2 жыл бұрын

    @@robertnett9793 "Rotate the shield harmonics"

  • @Wulfjager
    @Wulfjager2 жыл бұрын

    When I first got into machining that was one thing that blew my mind was the indicator bases. It was an on off switched magnet and it was incredible to me

  • @johnraitt2555
    @johnraitt2555 Жыл бұрын

    When welding frames, you can use a magnetic square that has a mechanical switch on it, once the magnet is "on", the square is able to stick to metal pretty easily, when flipping the switch "off", it interacts with some mechanical components that move the magnets inside the square away from the inner walls of the square, moving them as closely inwards as it can

  • @ekeomaeke3670
    @ekeomaeke36703 жыл бұрын

    I'm just wandering how he's gonna separate that chunk of steel from that monster magnet.

  • @grantmalone

    @grantmalone

    3 жыл бұрын

    Easy. Just heat it to its Curie Temperature by setting the lab on fire.

  • @ekeomaeke3670

    @ekeomaeke3670

    3 жыл бұрын

    @@grantmalone 😂😂

  • @Marv3Lthe1

    @Marv3Lthe1

    3 жыл бұрын

    He needs to call Thor for that.

  • @andricode

    @andricode

    3 жыл бұрын

    @@grantmalone And kill the magnet

  • @H2SO4pyro

    @H2SO4pyro

    3 жыл бұрын

    By putting an other monster magnet next to it! :D

  • @Amz19871
    @Amz198713 жыл бұрын

    You can also suppress a permanent magnet using Lenz’s law, by coiling a wire around it in much the same way you would make an electromagnet but in reverse. Once you apply a current to the coil when arranged correctly it will suppress the permanent magnet with an equal and opposite electromagnetic polar force. We use this principle in railway engineering. You should give it a try :)

  • @jasgk74

    @jasgk74

    3 жыл бұрын

    That’s basically what he just described. Except you’re using an electromagnetic of the same polarity, rather than a permanent one.

  • @Amz19871

    @Amz19871

    3 жыл бұрын

    @@jasgk74 pretty different to what he described then...

  • @jasgk74

    @jasgk74

    3 жыл бұрын

    Yes & no. Potato, potäto. Either way, both ways are pretty cool.

  • @Amz19871

    @Amz19871

    3 жыл бұрын

    @@jasgk74 agreed 👍🏻

  • @SovereignStorm

    @SovereignStorm

    3 жыл бұрын

    *Lenz

  • @dennisgunn468
    @dennisgunn4683 жыл бұрын

    I am a 61 year old DIY dabbler and inventor and I am addicted to your show. I usually know what the outcomes of your experiments are going to be but sometimes I don't and I enjoy your presentations either way.

  • @DAdamTrammell
    @DAdamTrammell Жыл бұрын

    Great video. I always thought the 1943 penny was made from mostly zinc. I never realized they actually were mostly steel, even though they're called steel pennies. I've been wanting a Magswitch for years because they're just cool.

  • @nuclear2970
    @nuclear29703 жыл бұрын

    The Action Lab: Now let's test this theory out with my trusty metal sheet The Metal Sheet: **KILL ME**

  • @SirMegaManNeoX

    @SirMegaManNeoX

    2 жыл бұрын

    I think he's trying... 🤣

  • @trindalas

    @trindalas

    2 жыл бұрын

    I didn’t even think it was steel when I first saw it. Looked like a sheet of plastic that’s seen some things.

  • @kentguiller

    @kentguiller

    2 жыл бұрын

    @@trindalas *"Seen some things"* ah right right.

  • @Hanlb

    @Hanlb

    2 жыл бұрын

    "Later" (Meet the Medic)

  • @tenzinc1514

    @tenzinc1514

    2 жыл бұрын

    I thought it was a huge slice of cheese at first 😂

  • @lastchance8142
    @lastchance81423 жыл бұрын

    I appreciate how excited he is about all his experiments. Wish I had more teachers like him.

  • @doyoufeel...thatyoulackcri6760

    @doyoufeel...thatyoulackcri6760

    Жыл бұрын

    Sure, but the video is around 8 minutes longer than needed for such small thing. Explaining the same thing again and again make me annoyed. Obviously he wanted space for more ads.

  • @boywithamask1

    @boywithamask1

    Жыл бұрын

    @@doyoufeel...thatyoulackcri6760 your grammar “make me annoyed” 💀

  • @jonslg240

    @jonslg240

    Жыл бұрын

    I would be too.. "when you turn it on it sucks it up"? Sign me up for one! 😁

  • @jonslg240

    @jonslg240

    Жыл бұрын

    @@doyoufeel...thatyoulackcri6760 you need to learn that that's youtubes fault not his. If I can get interesting content for free and all I have to do is skip through the boring parts? I don't see the problem at all. You should be blaming youtube and not him.

  • @markoursic2685

    @markoursic2685

    4 ай бұрын

    lucky you, from your writing i assume that you have at least one or more good teacher, me no one😥.

  • @lexingram8622
    @lexingram86222 жыл бұрын

    I use these magnets at work to move huge metal parts, always wondered how they work awesome video!

  • @tiemen9095
    @tiemen90952 жыл бұрын

    I use these quite a lot at work, they are very useful to position holders that hold sensors around a test article. Put it in place on (or below!) the steel base plate, turn the knob and it goes nowhere. Make sure the magnetism doesn't affect your test though. I had some idea how it worked, but now I know. Nice video!

  • @fatonisodiq9341
    @fatonisodiq93413 жыл бұрын

    I've seen this on my workbench at school and it made me curious about how it works, and here is the answer

  • @zulhelmi2379

    @zulhelmi2379

    3 жыл бұрын

    Yeah same😄

  • @lucasbiaggini

    @lucasbiaggini

    3 жыл бұрын

    It made me wonder why magswitches cost so much. Because everything woodworking does, I guess.

  • @camillosteuss

    @camillosteuss

    3 жыл бұрын

    check out the metalworking equipment... woodwork is peasantly cheap in comparison

  • @jakala1399
    @jakala13993 жыл бұрын

    I felt sorry for the steel plate. It looks it has been through a lot

  • @reniemadison1738

    @reniemadison1738

    2 жыл бұрын

    Don't. They are resilient and bounce back. Always do. God, not science.

  • @thatkindcoder7510

    @thatkindcoder7510

    2 жыл бұрын

    Steel plate: "Kill me" Action lab: "Later"

  • @windowschips

    @windowschips

    Жыл бұрын

    still*

  • @deeceehawk
    @deeceehawk3 жыл бұрын

    Incredible teacher! Been following for a while… Scribes, and I say… It's awesome how are you taught us first, how magnetic flux will shortcut through the steel plate… THEN ! You showed us how it's short-circuiting through their manufactured magnet block … Awesome technique , I understood it right away! Thank you so much , awesome content always

  • @ElLenadorLA
    @ElLenadorLA2 жыл бұрын

    Ah we use magnets like these for welding! I was always curious how they turned on and off.

  • @navrag4927
    @navrag49273 жыл бұрын

    Thumbnail seems interesting.....

  • @Box69

    @Box69

    3 жыл бұрын

    Lol

  • @YellowLAVA

    @YellowLAVA

    3 жыл бұрын

    I don't get it, (i can tell it's something sexual)

  • @AGblueMetal

    @AGblueMetal

    3 жыл бұрын

    XD

  • @jio21

    @jio21

    3 жыл бұрын

    Shut up

  • @S_--

    @S_--

    3 жыл бұрын

    @@YellowLAVA turn off aka "not be horny anymore" and the ""intresting"" part of the thumbnail is it looking similar to flaccid male genitalia. Yes I just explained the joke, yes I also hate myself. Thank you

  • @joeshedler6496
    @joeshedler64963 жыл бұрын

    @TheActionLab, I've been playing with magnets for years. I did not know this and was like "what is this voodoo magic magnet that can turn off?" A couple twists later, AND IT TURNED OFF??? 🤯🤯🤯 Awesome video, thanks for teaching me something.

  • @labibalman

    @labibalman

    2 ай бұрын

    Didn't You see a magnetic excavator? In Cartoons or Real life?

  • @peta1001
    @peta10012 жыл бұрын

    It's always a pleasure to watch your videos...no hidden things, no incorrect statements, no ambiguity. I wish you had a video that explains details of a permanent magnet table (a lever is used to neutralize the attraction force). No existing videos go into polarities, thicknesses and material specifications, so I personally hesitate to start a potentially expensive experiment???? 💯

  • @souhailshamaissem7564
    @souhailshamaissem75642 жыл бұрын

    Wow, amazing video. I never thought it was possible but thanks to you, I learnt something new today. I have always been fascinated by magnets.. Keep up the good work mate.

  • @shaywhoop4040
    @shaywhoop40403 жыл бұрын

    Holy cow !! That sheet of steel has been through some real shit :(

  • @moonlightbirdy

    @moonlightbirdy

    3 жыл бұрын

    F

  • @Bruh-vd1pp

    @Bruh-vd1pp

    3 жыл бұрын

    F

  • @itsgarytime2768

    @itsgarytime2768

    3 жыл бұрын

    F

  • @overpoweredfirehoodieopfir8729

    @overpoweredfirehoodieopfir8729

    3 жыл бұрын

    F

  • @lorddio4581

    @lorddio4581

    3 жыл бұрын

    F

  • @KJMagnetics
    @KJMagnetics3 жыл бұрын

    Awesome information and demonstrations! You just covered like 10 of our articles in one video!

  • @caseykittel

    @caseykittel

    2 жыл бұрын

    I have some of your magnets. love them. thanks

  • @Big.Ron1
    @Big.Ron12 жыл бұрын

    Very interesting. That last graphic showed it perfectly. So this is how the magnetic base for my dial indicator works. Thank you.

  • @JoseTorres-sl2eq
    @JoseTorres-sl2eq2 жыл бұрын

    Really, I was obsessed in discovering this switching magnet's execution and your video became the end of my search. Thanks for an excellent instructional video job!

  • @kwilli8288
    @kwilli82883 жыл бұрын

    The moment when you can't hear the difference between "still" and "steel"

  • @sjdpfisvrj

    @sjdpfisvrj

    3 жыл бұрын

    This was driving me nuts during the video.

  • @ZipplyZane

    @ZipplyZane

    2 жыл бұрын

    I have friends with a similar accent, and their last name is spelled "Still" but pronounced like "steel."

  • @VWPOrillion

    @VWPOrillion

    2 жыл бұрын

    Good use for the subtitles function... Oh, wait...

  • @stevecollins2770
    @stevecollins27703 жыл бұрын

    how can you build a "magnetizer" so that you can magnetize screwdrivers, hammers, etc.? How do they do it commercially?

  • @benitokim1793

    @benitokim1793

    3 жыл бұрын

    As far as I know, they apply a very big magnetic field to the metal, so its spins get aligned

  • @greg0063

    @greg0063

    3 жыл бұрын

    I don't know how to do it permanently but I keep a strong magnet on my bench and pass a screw driver over it a few times to temporarily magnitize it to get a screw in a tight spot. Or just stick a small one to the tool for an instant magnetic tool. Commercially? idk.

  • @cisarvialpando7412

    @cisarvialpando7412

    3 жыл бұрын

    They are done by powerful solenoids....the piece of metal that has to be magnetized is place inside the solenoid and very large amount of current is passed through the solenoid which in turn creates a strong magetic field around that metal and that metal becomes a permanent magnet.

  • @1boobtube

    @1boobtube

    3 жыл бұрын

    Screwdrivers just rub it on a strong magnet or leave a small neo magnet stuck to it. It wont be that magnetic but will hold a screw. Real magnetizing fixtures use solid copper gold plated buss bars a truck battery size capacitor bank and I assume large transformer? to develop a quick massive current to the fixture. RUD can happen and blow the heads off the bolts if it's not done correctly. Not sure about the transformer but the capacitor bank is big enough to need wheels. Putting a pre magnetized pc in a fixture needs to be oriented correctly or you just made a missile.

  • @Leo-sd3jt

    @Leo-sd3jt

    3 жыл бұрын

    You just keep running the tool over the magnet in a single direction or run the magnet over the tool in a specific direction and it'll magnetize the tool.

  • @patrom8164
    @patrom81642 жыл бұрын

    I use the same switchable magnet but bigger to sometimes pick up steel parts at work and was always baffled by how does it work since its not electric. Thanks for telling me how they work. 👍

  • @MK-lk7nc
    @MK-lk7nc2 жыл бұрын

    Love these magnet videos, thanks. They've helped clear up a lot for me. How about some ferrofluid videos? I'm very interesting in magnetic spheres coated in ferrofluid as a means of reducing friction across rolling surfaces.

  • @rickheuft476
    @rickheuft4763 жыл бұрын

    I first encountered this with a metal surface grinder. The magnet is strong enough to hold the steel being finished in place. It is released by turning a lever. I never figured out how it worked. Thank you for the explanation and demonstration.

  • @mellertid

    @mellertid

    Жыл бұрын

    It may be this method, may be just magnets sliding under a brass-steel pattern. On the one I saw, the stripes were quite visible.

  • @Nikexel
    @Nikexel3 жыл бұрын

    for some reason this reminds me of redstone, using magnet to turn off magnets.

  • @kusaisama

    @kusaisama

    2 жыл бұрын

    @Satsuki Shirotae yes

  • @mazenboureslan8727
    @mazenboureslan87273 ай бұрын

    Thank you for clearing some important question about some tool we've been using in machining.

  • @tonytor5346
    @tonytor53462 жыл бұрын

    Can you have a demo of electrogravity? 1) Using capacitor plates with + pointing upward. 2) using a ferro-mercurial mixture turning in a toroid? I found this very interesting when I was in college.

  • @theguyinthefunnyhat
    @theguyinthefunnyhat3 жыл бұрын

    When he showed the switchable magnet, I instantly thought "It probably has a second magnet to cancel the magnetic field of the other".

  • @rubyhillman1859

    @rubyhillman1859

    2 жыл бұрын

    Ok

  • @Cyberplayer5
    @Cyberplayer53 жыл бұрын

    3:50 Many modern soldering irons use this effect to control the temperature of the iron tip.

  • @victorborges9523
    @victorborges95232 жыл бұрын

    And finally, a great use for a 1943 steel cent. Great video, with a lot of valuable information.

  • @ginostephens9269
    @ginostephens9269 Жыл бұрын

    These are cool, my dad has one on the base of a tool he uses to check center when turning materials on his lathe. I have always wondered how it works since it is not an electromagnet, thanks.

  • @daleanderson1727
    @daleanderson17273 жыл бұрын

    Really good session and the magnetic paper was a revelation to me. Thanks for taking the time to share what you know here.

  • @0Linerider0forever0
    @0Linerider0forever03 жыл бұрын

    great video, i had no idea! would have been useful to see the inner workings of that magnet that turns off. a cross section or something.

  • @MrReadandlearn
    @MrReadandlearn2 жыл бұрын

    I use switched magnets for welding fabrication. What's really neat is when off even metal filings from grinding come off. I now use them to vacuum up the bench and drill press.

  • @ryanlastname3039
    @ryanlastname30392 жыл бұрын

    Truly mind blowing stuff, yet the demonstration was pretty easy to follow

  • @icefire5799
    @icefire57993 жыл бұрын

    I know these switchable magnets from my apprenticeship we used them on the mill to adjust the vice on the mill table. They held the dial indicator on various positions on the mill nice vid

  • @lordshuv-rowyoknow6486
    @lordshuv-rowyoknow64863 жыл бұрын

    You know the science teacher is cool, when he use memes to demonstrate the process

  • @DanteTimberwolf

    @DanteTimberwolf

    3 жыл бұрын

    Spleens

  • @mikkel5248

    @mikkel5248

    3 жыл бұрын

    Lungs

  • @mr.potato3779

    @mr.potato3779

    3 жыл бұрын

    Kidneys

  • @DanteTimberwolf

    @DanteTimberwolf

    3 жыл бұрын

    @@mr.potato3779 tonsils

  • @DanteTimberwolf

    @DanteTimberwolf

    3 жыл бұрын

    @@mikkel5248 arteries

  • @philipjohnson7445
    @philipjohnson7445 Жыл бұрын

    I had some theories about how these worked but didn't want to buy one to take apart, this was very informative.

  • @furtnot3441
    @furtnot34412 жыл бұрын

    I love how he is casually using a 1944 steel penny in his tests. I wonder if he knows how much it is worth

  • @boxedfender4810

    @boxedfender4810

    2 жыл бұрын

    1.5 cents

  • @thespicyfox9056

    @thespicyfox9056

    2 жыл бұрын

    They’re probably 1943 pennys

  • @nerdsunscripted624

    @nerdsunscripted624

    2 жыл бұрын

    1943, and the steel ones aren’t really worth anything, only the copper pennies from that year were rare

  • @nicolaslopezzz

    @nicolaslopezzz

    2 жыл бұрын

    I have a penny from 1954... It sells for 6 dollars online

  • @noblemagi

    @noblemagi

    2 жыл бұрын

    Lots of countries use steel in their coinage

  • @BeastlyKings
    @BeastlyKings3 жыл бұрын

    Thanks! I learned something! Would've liked to see the magnetic feel viewing sheet used on the controllable magnet though, bummer

  • @quietbearcasey178
    @quietbearcasey1783 жыл бұрын

    I would like to know where he got that steel penny. Those were minted and used during WW2. His looked like it was in great condition.

  • @fullthrottlenotoggle19

    @fullthrottlenotoggle19

    3 жыл бұрын

    Yeah I saw that too I was completely dumb founded that he was just flashing those around. I wonder if he knows what the value of those pennies are?

  • @James-nl4ki

    @James-nl4ki

    3 жыл бұрын

    I thought I was the only one that noticed haha glad I’m not alone 😎

  • @SlickWillyTFCF

    @SlickWillyTFCF

    2 жыл бұрын

    You can get them at most coin shops or online. There were more than a billion of them minted, so they're not at all rare.

  • @SlickWillyTFCF

    @SlickWillyTFCF

    2 жыл бұрын

    @@fullthrottlenotoggle19 Those pennies are worth about twenty-five cents on average. They're not at all rare.

  • @Texassince1836

    @Texassince1836

    2 жыл бұрын

    Looks like they're re-plated, so practically worthless

  • @Mr.Dishwasher
    @Mr.Dishwasher Жыл бұрын

    We use these in the machine shop I work at to hold dial indicators to things, I always wondered how they worked. Thanks for the video!

  • @paulbeaumont2714
    @paulbeaumont27143 жыл бұрын

    Amazing. You have helped me understand the lines of flux and how hey interact with each other and objects near to he lines of flux. Great job.

  • @IncroyablesExperiences
    @IncroyablesExperiences3 жыл бұрын

    You should say that the energy (work) required to switch off the magnet is the same as the work that can be transferred to a mobile 😎

  • @lucakassab4745

    @lucakassab4745

    3 жыл бұрын

    A mobile?

  • @nikofox8513

    @nikofox8513

    3 жыл бұрын

    it's either your having a stroke, or I'm having a stroke.

  • @Bruh-vd1pp

    @Bruh-vd1pp

    3 жыл бұрын

    @@nikofox8513 Probably both

  • @jvcrules

    @jvcrules

    3 жыл бұрын

    By mobile he means any object that you can effect with the magnet.

  • @Automatic-Diaphragm

    @Automatic-Diaphragm

    3 жыл бұрын

    @@jvcrules ahhhhh

  • @johnathanrichardson
    @johnathanrichardson3 жыл бұрын

    i noticed this when i was a kid and playing with magnets. always wondered what was going on. this is really cool and is great to finally know why they do that

  • @willcool713
    @willcool7132 жыл бұрын

    I swiped a magnetic ring stand base from my dad's lab that had a physical switch with permanent magnets. It was about ten pounds of force in the Off position, and more than a hundred when you switched it to On. There was a manmade lake near where I grew up and I used that magnet to go magnet fishing in the old valley a few times. (Bottle caps and hubcaps and not much else.) Took it to school to show my chemistry teacher and he was really confused that it wasn't an electromagnet and had no batteries.

  • @jamiedavies5217
    @jamiedavies52172 жыл бұрын

    I love how easily you explain things so simpletons like me can understand thank you

  • @ibrahimfadi4177
    @ibrahimfadi41773 жыл бұрын

    I never seen the real magmatic fields ,that's really amazing 🤠🤠🤠🤠

  • @NecroTitan

    @NecroTitan

    3 жыл бұрын

    soccer field on a volcano

  • @ethangeorge538

    @ethangeorge538

    3 жыл бұрын

    Magmatic

  • @markylon

    @markylon

    3 жыл бұрын

    get some iron filings on a piece of paper and put a magnet on the otherside and see the magnetic field

  • @insylem

    @insylem

    3 жыл бұрын

    I can see magnetic waves.... Theyre everywhere

  • @freezinfire
    @freezinfire3 жыл бұрын

    Wow, that was really cool, professor!

  • @infernalsorcery7923
    @infernalsorcery79232 жыл бұрын

    We use big toggle-able magnets in fabrication and welding all the time. Super useful for keeping a part in place to grind it, bevel it, tack it? Then it’s easy to take off.

  • @l_uxtrous
    @l_uxtrous Жыл бұрын

    I remember a couple years ago I was playing with some magnets I had and figured out that they have values; that they’ll cancel each other out if one is facing north and one is facing south. And now I’m realizing, I pretty much did figure out how to turn off magnets. I feel so smart.

  • @patrickwood4487
    @patrickwood44873 жыл бұрын

    One thing I would like to see demonstrated is "What happens if the two permanent magnets have opposing orientation at the coin and you add an identical coin to the opposite side of these magnets".

  • @markkinsler4333

    @markkinsler4333

    2 жыл бұрын

    The result won't be much different. The neutralizing effect will be somewhat enhanced because the magnetic field will be more efficiently contained.

  • @jfreedner
    @jfreedner3 жыл бұрын

    K&J Magnetics is a great source for all sorts of magnets like this. NOTE: be very careful letting magnets snap together! Neodymium is extremely brittle and fractures easily creating some pretty sharp edges and teeny fragments that stick to things and are a pain to clean up (usually I mash duct tape onto the magnetic "gravel" and that does the trick).

  • @daisymeroalin2372
    @daisymeroalin23722 жыл бұрын

    Been using those switches in my job, always wondered how they work

  • @yash1152
    @yash1152 Жыл бұрын

    action lab is only popular channel still being real and not that stupid accenty tone and no clickbaits. he ACTUALLY delivers whats mentioned in title. super amazing.

  • @Custmzir
    @Custmzir3 жыл бұрын

    0:35 Ahh... The memes

  • @meraj95
    @meraj953 жыл бұрын

    Great work as always. I wish to see changing magnetic field lines(like a animation) when you change the orientation.

  • @ChazZen

    @ChazZen

    3 жыл бұрын

    Look up ferrocell or super cells

  • @meraj95

    @meraj95

    3 жыл бұрын

    @@ChazZen hey Thanks:)

  • @OriaXu
    @OriaXu Жыл бұрын

    Such a simple yet genius item!

  • @herik63
    @herik63 Жыл бұрын

    As many people here I was aware of that but newer understood how, welding clamps, or also grinding accessories, many thanks for the explanation!

  • @hj8607
    @hj86073 жыл бұрын

    if you look at magnetic paper in front of 1" thick steel that was placed in front of square super magnet the paper is not showing a square field 'coming' through steel but is showing the shape of the 1" steel itself. The magnetic field is being translated into the 1" steel , not going through it. (same thing happened with small circular magnet . )

  • @GetMoGaming

    @GetMoGaming

    2 жыл бұрын

    I noticed that too

  • @markkinsler4333

    @markkinsler4333

    2 жыл бұрын

    True, but the effect is identical. There's still no shielding effect.

  • @luciansaucier8744
    @luciansaucier87443 жыл бұрын

    i LEARNED something amazing, and im probably gonna go try and make this (and fail.) but thank you anways. this was pretty cool to learn :)

  • @theRainyMute
    @theRainyMute Жыл бұрын

    i had no clue what was going on but i found it very satisfying to realize what it was before it was revealed, what tipped me onto it was the handle being turned around

  • @LukeTuckett
    @LukeTuckett Жыл бұрын

    Wow, that's awesome! I wonder if there could be a mechanical application for this to power a small vehicle. Through a complex system, maybe many of these devices could be synchronized to activate at certain points of a rotation, providing rotational force to an axle. Maybe the machine could even be hand cranked!

  • @ladygagarocks21
    @ladygagarocks213 жыл бұрын

    Here’s what I learned: I need one of these magnets now

  • @schwig44

    @schwig44

    3 жыл бұрын

    look at places like mscdirect or mcmaster-carr, they have bases for indicators used in machining that have used this tech since the 1920's, and they are much better designed to be useful as a magmount for things rather than as a pickup tool like the one in the video... for less than $40 you could get this part number from mcmaster 20715A44, and it even comes with the indicator ( a crappy one, but you want the base) you could prob use it to mount cameras and such edit: I just looked back at the product page, the thing can hold 132 pounds if that matters at all, lol

  • @homelessrobot

    @homelessrobot

    3 жыл бұрын

    @@schwig44 thanks for the info!

  • @victorhopper6774

    @victorhopper6774

    3 жыл бұрын

    @@homelessrobot make your own. piece of iron and 2 magnets,just flip one magnet

  • @jfksjdbgiaishdhcok4123
    @jfksjdbgiaishdhcok41233 жыл бұрын

    I didn't know that it was possible to the the 3-D lines... Damn... Nice research bro

  • @raybois

    @raybois

    3 жыл бұрын

    Bro??

  • @numbdigger9552

    @numbdigger9552

    3 жыл бұрын

    @@raybois ██╗████████╗  ██╗░██████╗   ██║╚══██╔══╝  ██║██╔════╝   ██║░░░██║░░░  ██║╚█████╗░   ██║░░░██║░░░  ██║░╚═══██╗   ██║░░░██║░░░  ██║██████╔╝   ╚═╝░░░╚═╝░░░  ╚═╝╚═════╝░   ██████╗░░█████╗░░██████╗░██████╗██╗██████╗░██╗░░░░░███████╗   ██╔══██╗██╔══██╗██╔════╝██╔════╝██║██╔══██╗██║░░░░░██╔════╝   ██████╔╝██║░░██║╚█████╗░╚█████╗░██║██████╦╝██║░░░░░█████╗░░   ██╔═══╝░██║░░██║░╚═══██╗░╚═══██╗██║██╔══██╗██║░░░░░██╔══╝░░   ██║░░░░░╚█████╔╝██████╔╝██████╔╝██║██████╦╝███████╗███████╗   ╚═╝░░░░░░╚════╝░╚═════╝░╚═════╝░╚═╝╚═════╝░╚══════╝╚══════╝   ████████╗░█████╗░  ████████╗██╗░░██╗███████╗   ╚══██╔══╝██╔══██╗  ╚══██╔══╝██║░░██║██╔════╝   ░░░██║░░░██║░░██║  ░░░██║░░░███████║█████╗░░   ░░░██║░░░██║░░██║  ░░░██║░░░██╔══██║██╔══╝░░   ░░░██║░░░╚█████╔╝  ░░░██║░░░██║░░██║███████╗   ░░░╚═╝░░░░╚════╝░  ░░░╚═╝░░░╚═╝░░╚═╝╚══════╝   ████████╗██╗░░██╗███████╗   ╚══██╔══╝██║░░██║██╔════╝   ░░░██║░░░███████║█████╗░░   ░░░██║░░░██╔══██║██╔══╝░░   ░░░██║░░░██║░░██║███████╗   ░░░╚═╝░░░╚═╝░░╚═╝╚══════╝   ██████╗░░░░░░░██████╗░  ██╗░░░░░██╗███╗░░██╗███████╗░██████╗ ╚════██╗░░░░░░██╔══██╗  ██║░░░░░██║████╗░██║██╔════╝██╔════╝ ░█████╔╝█████╗██║░░██║  ██║░░░░░██║██╔██╗██║█████╗░░╚█████╗░ ░╚═══██╗╚════╝██║░░██║  ██║░░░░░██║██║╚████║██╔══╝░░░╚═══██╗ ██████╔╝░░░░░░██████╔╝  ███████╗██║██║░╚███║███████╗██████╔╝ ╚═════╝░░░░░░░╚═════╝░  ╚══════╝╚═╝╚═╝░░╚══╝╚══════╝╚═════╝░

  • @jensschroder8214
    @jensschroder8214 Жыл бұрын

    4:17 the Weller Magnastat soldering irons also work with a magnet that is switched off at the Curie point. If the temperature drops, it becomes magnetic again and the soldering iron is switched on again. This is available for 24 volts, 120 and 230 volts.

  • @qq13563817153
    @qq135638171532 жыл бұрын

    the dial indicators I used to line up lathes in the shop I used to work at had these togglable magnets on them, always wondered how they worked

  • @aretailcashier450
    @aretailcashier450 Жыл бұрын

    so by angling magnetic poles 180 degrees you can “turn off” the magnetic field. so wouldn’t it make sense to be able to amplify the magnetic field by alining magnets so their poles are at right angles to each other?

  • @MakutaNazo

    @MakutaNazo

    Жыл бұрын

    Yup. Particle accelerators do this along the entire ring of the accelerator. Though, the magnetic field in this case is less responsible for accelerating the particles and is more like a gutter guard in a bowling alley.

  • @ronhobyak9902
    @ronhobyak99022 жыл бұрын

    I have often wondered if magnets could be paired with mechanical linkages to produce perpetual motion. Then I remember friction. Could a friction less mechanical linkage be possible ? Maybe those magnets that levitate ? Liquid bearings ? Is there some energy source that we have not discovered yet that will overcome E=MC squared ?

  • @eklhaft4531
    @eklhaft45319 ай бұрын

    Thank you. In university I was forced to learn something about magnetic circuits. I don't know if it was explained in the lectures but I feel like i am only starting to get it now.

  • @clickallnight
    @clickallnight2 жыл бұрын

    Fantastic demonstration!

  • @eroraf8637
    @eroraf86373 жыл бұрын

    Is it weird that I was constantly distracted by the extremely rare steel pennies that he’s casually using for a science experiment?

  • @magrat3247

    @magrat3247

    3 жыл бұрын

    i have no clue but he is useing 2 of them for it there is no way that he has them without knowing

  • @SuperWhoremuffin

    @SuperWhoremuffin

    3 жыл бұрын

    Also distraught at him letting washers and other metal slam into them denting the faces

  • @conseil7275

    @conseil7275

    3 жыл бұрын

    @@SuperWhoremuffin!

  • @flywithoutwingz

    @flywithoutwingz

    3 жыл бұрын

    Steel pennies aren't extremely rare. Copper pennies of the same year(s) are the rare ones. They were made of steel during the WWII era because of a copper shortage.

  • @eroraf8637

    @eroraf8637

    3 жыл бұрын

    @@flywithoutwingz Huh, TIL. Thanks for the history lesson. You collect coins?

  • @user-kx1jr9eb9r
    @user-kx1jr9eb9r3 жыл бұрын

    Be safe.....cause we need you in our life😂😂🖤

  • @jmtx.
    @jmtx.2 жыл бұрын

    Awesome. Was always curious about how those mag chucks worked.

  • @urosmarkovic6535
    @urosmarkovic6535 Жыл бұрын

    We got those in our steel workshop at my workplace, they are very handy for lifting heavy small steel objects/plates

  • @rumamoitra3822
    @rumamoitra38223 жыл бұрын

    Now this person is bending the physics

  • @bob4analog
    @bob4analog3 жыл бұрын

    Great vid! I'm thinking the same effect can be done with a permanent magnet and an electromagnet just by reversing the electrial connection?

  • @carlyounger6262

    @carlyounger6262

    2 жыл бұрын

    Why? If you already have an electro-magnet, what would be the point?

  • @bob4analog

    @bob4analog

    2 жыл бұрын

    I worded it wrong. I think there's a way to use a small electromagnet to turn off the magnet instead of using another permanent magnet. Just a thought.

  • @carlyounger6262

    @carlyounger6262

    2 жыл бұрын

    @@bob4analog - I don't get it, but there's a lot about electro-magnetism I don't understand (most of it), so I'm not going to argue the point.

  • @bob4analog

    @bob4analog

    2 жыл бұрын

    It's just another trick with combining permanent magnets and electromagnets.

  • @zerbs25
    @zerbs25 Жыл бұрын

    Wow, that was the question I was wondering about a long time ago. Thanx.

  • @jefflindeman
    @jefflindeman2 жыл бұрын

    I use the MagSwitch product all the time to hold feather-boards to the case iron top of my table saw. I love the concept, but I would really liked to you take one apart and actually show the mechanism.

  • @dude9159
    @dude91593 жыл бұрын

    This is a really interesting video. For some reason, it feels like I get smarter with KZread videos more than school lessons.

  • @ArtyBeans

    @ArtyBeans

    2 жыл бұрын

    Agreed

  • @MetalMario137

    @MetalMario137

    2 жыл бұрын

    Correction: you **are** getting smarter off of KZread content.

  • @dude9159

    @dude9159

    2 жыл бұрын

    Well, as long as you get the point, it's alright. I appreciate the grammar correction, but I really ment "I", not "you".

  • @ArtyBeans

    @ArtyBeans

    2 жыл бұрын

    @@dude9159Pog

  • @MetalMario137

    @MetalMario137

    2 жыл бұрын

    @@dude9159 No it wasn't a grammar correction lol, it was a word adjustment from "you feeling" vs "you are"

  • @peterboneg
    @peterboneg3 жыл бұрын

    I assume that it takes energy to turn the magnetic switch on and off to overcome the magnetic resistance to rotating one of the magnets. Otherwise you could use it to make a perpetual motion machine (A kind of motor that used permanent magnets instead of electromagnets).

  • @nullzenith7517

    @nullzenith7517

    2 жыл бұрын

    It's fully possible to make a fully permanent magnetic motor but I'm pretty sure the magnetic fields degrade away over time as they interact with opposing polarities

  • @BilalBilal-fv9ij
    @BilalBilal-fv9ij Жыл бұрын

    Thankyou , It is very use full in my project

  • @itsmehere1
    @itsmehere12 жыл бұрын

    I feel like a easier to understand explanation of the thick steel example would be that the steel is like a sponge, it can take in and absorb smaller magnetic field but if you have too big of a magnetic field it can't absorb all of it and some of it leaks through.

  • @lukasoffen2420
    @lukasoffen24203 жыл бұрын

    As I saw the thumbnail I first thought perpetuum mobile incoming xD But it sadly isn't. The force that you need to turn the lever is the same that you need to attract the object

  • @asteria4_943
    @asteria4_9433 жыл бұрын

    Electromagnets: allow me to introduce myself

  • @aetheralmeowstic2392

    @aetheralmeowstic2392

    3 жыл бұрын

    flesym ecudortni ot em wolla :stengamortcelE

  • @FlamingBeat

    @FlamingBeat

    3 жыл бұрын

    @@aetheralmeowstic2392 *noitcefreP*

  • @rhythm5080

    @rhythm5080

    3 жыл бұрын

    ɟlǝsʎɯ ǝɔnpoɹʇuᴉ oʇ ǝɯ ʍollɐ :sʇǝuƃɐɯoɹʇɔǝlƎ

  • @FlamingBeat

    @FlamingBeat

    3 жыл бұрын

    @@rhythm5080 nmaD

  • @frenchfry074

    @frenchfry074

    3 жыл бұрын

    How in the heck am I able to read these replys

  • @howtogamedev_
    @howtogamedev_3 жыл бұрын

    This is amazing I always had this question from a long time.

  • @pierrelecaillou6966
    @pierrelecaillou69663 жыл бұрын

    Thanks , Action Lab Guy! Today I learned!

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