How a slinky falls in slow motion

This is not just true of slinkies - if you release a steel rod from the top, the top really starts falling before the bottom. If you hit a tennis ball with a racket, a wave has to travel from the strings to your hand before you feel it - and the ball is well on its way to the net by this time. If you hit a golf ball, the ball is well on its way to the hole before you can feel it. Rigid bodies aren't truly rigid and understanding this is essential to understanding the way the world works

жүктөп алуу



  • This is an excerpt from a video I made 10 years ago - seemed like the perfect thing to show in vertical format. I was unaware Action Labs had recently made a video about the same thing. A regular video should be out Friday/Saturday this week.

    VeritasiumVeritasium14 күн мурун
    • @heyou Hey, can I ask for some examples? Just curious about who made the original ideas of what he's sharing

      FOSFOS9 саат мурун
    • I am planing to stay in air by hanging on slinky

      Atharv GuptaAtharv GuptaКүн мурун
    • Hey hold on so basically you're saying you stole this ಠಿ_ಠ

    • mmm I think the bottom part stayas there because it'w waiting for the top part to reach therminal velocity. I think if you drop from an helium balloon (use a rope to keep the balloon in place) and then drop the top part, the bottom part will drop once it reaches terminal velocity (as I said).

      GambaGamba2 күн мурун
    • lol ikr i thot that u follow his experiment tho

      NothingNothing3 күн мурун
  • 100$ and you cannot predict it on the paper without this experiment

    Aleksei MardasAleksei Mardas52 мүнөт мурун
  • Yes but what happens when you sling a dropie?

    Szymon GrabarczykSzymon Grabarczyk3 саат мурун
  • When u realize earth works in misterious ways

    ilyn Payneilyn Payne3 саат мурун
  • What happened to Gravity???...

    Ethan HuntEthan Hunt4 саат мурун
  • So I remember when I had a slinky and I thought “I should hang the slinky out the window to see what happens” (I was in my moms car) it got stuck, and my mom yelled at me, that’s the end of the story

    CloudyLeah_YTCloudyLeah_YT4 саат мурун
  • What if you attach a weight on the bottom part greater than the slinky itself

    a deana dean4 саат мурун
  • Top slinky part: hey bro can u stop please I need to catch up Bottom slinky part: yeah sure

    a deana dean4 саат мурун
  • Wait so gravity affects the top of an object before it affects the bottom?

    AndrewAndrew5 саат мурун
  • The best part in this video was the slinky falling :D

    akagreenbloxakagreenblox6 саат мурун
  • I went into this thinking "I already know this," and then I learned something new anyway. It turns out I was unaware of slinky rotation.

    LukeDude759LukeDude7596 саат мурун
  • Wait, wouldn't they defy gravity? The slinky has mass and doesn't gravity act upon that? Is it actually falling ever so slightly?

    N TN T6 саат мурун
  • Well well well then let's find out

    CreativeName GoesHereCreativeName GoesHere6 саат мурун
  • The bottom part is being pulled upwards while the top part is the one that's both falling and pulling towards the center. It's not really that kind of amazing. Unless, there's some use for this. Do the same thing, but on a nice smooth floor. You'll see both ends converge towards the center or towards the side that was set off last.

    Ken TsujigiriKen Tsujigiri7 саат мурун
  • 0:34 nope Simply means sweetie ur hand is crooked cuz u made it spin while falling Also no way it doesn't go down at all When i do it they fall together then the top part goes down as i remember

    DanDCoolDanDCool8 саат мурун
  • So? People have way to much time on their hands. All people want to do is make a living thru making videos

    jose romerojose romero8 саат мурун
  • the last thing i need is more shorts spamming my sub feed

    YT ThrowawayYT Throwaway8 саат мурун
  • And also the top touches the ground before the bottom when a slinky is dropped

    LogicianMagicianLogicianMagician10 саат мурун
  • You dress up like a banker.

    Aman Deep SinghAman Deep Singh11 саат мурун
  • Amazing! I love physics. This just blew my mind. Never noticed this before. So cool

    Jude IkwuJude Ikwu11 саат мурун
  • "yeah science!" -jesse (brealing bad)

    patrick_henrypatrick_henry12 саат мурун
  • Weird thought but That would be the same if a lot of people were holding each other on a ledge, and the first person let go. Then the last person wouldn't fall at the same time, that person would still be "floating" until the person above starts to fall Right?

    Slipknot_KenSlipknot_Ken12 саат мурун
  • It can be addictive but pls for the love of science and the element Ve, refrain from getting sucked into the tiktok casino.

    Noor AhmedNoor Ahmed13 саат мурун
  • Towards the end when he's looking down at the falling slinky, he looks like a super villain who just won against the hero and is basking in the glory of the hero failing

    Kickin' Wing HotboiKickin' Wing Hotboi14 саат мурун
  • So if we have an infinitely long slinky ,it'll never fall

    Eren YeagerEren Yeager14 саат мурун
  • above part of the slinky: weeeeeeeeeee below part of the slinky: *surprise pikachu face*

    navya bohranavya bohra14 саат мурун
  • Stolen from Action lab tsk..

    lenorteofficiallenorteofficial15 саат мурун
  • So basically the lowest part resist GRAVITY...? 😲

    ᗠ_ᴇᴠɪʟsᗠ_ᴇᴠɪʟs15 саат мурун
  • I saw this somewhere else before, maybe action lab shorts ?

    Smit PatelSmit Patel17 саат мурун
  • if you were to get an infitite slinky and drop it in a infinite uniform gravity zone what would happen then? huh? well….?

    Abraham RosemanAbraham Roseman20 саат мурун
  • from a video 10 YEAR AGO !!!... my internal time clock is broken lol, time goes way to fast

    moreausemoreause20 саат мурун
  • "which means there is a torsion wave traveling faster than the compression wave"... Actually the collapse isn't a "compression wave" in the same sense as a sound wave. It's just the bunching up of the falling slinky. If it's not clear, the slinky is falling much slower than the speed of sound, the reason the bottom appears to hover is because gravity is still balanced out by spring tension until the spring becomes unstretched at that section of the spring.

    Sophie CourtSophie Court20 саат мурун
  • Yo why did the video end?

    Vaporizers101Vaporizers10121 саат мурун
  • That’s actually really cool wtf

    Adam KorsonAdam Korson22 саат мурун
  • I want to know,What would be the magnitude of acceleration of the top falling part.

    Hamayun KhanHamayun Khan23 саат мурун
  • I think it's going up cuz spring physics but it technically cant because it's falling It's almost just like how our eyes can fixate/focus looking at an object even when you move your head There's like that counter movement that makes it look like it's not moving There are dancers that use that concept to do the robot head dance or performers that hold things as if it's floating but in reality they practiced the counter movement to make it look like its floating/in the same space.

    bakamonobakamonoКүн мурун
  • slinky

    JaoGamerYTJaoGamerYTКүн мурун
  • It's like it's standing on something and falls when it fully retracted

    gamerboirlbx2gamerboirlbx2Күн мурун
  • More than gravitational pull, the upper portion of slinky is pulling the below part, apparently that's why it won't fall untill the stretch is lost.

    saturnringskhansaturnringskhanКүн мурун
  • Very impressive, but can you drop it in a way that creates the Mould effect?

    Some Kind of MasterSome Kind of MasterКүн мурун
  • ohhh i got a slinky recently

    jsojsoКүн мурун
  • stole from action lab

    Hello ReachHello ReachКүн мурун
  • As I noticed; There's an info. called "Gravity", that affects the whole system behavior, influencing it to start shrinking from one side toward the other side, rather than shrinking equally from the both sides toward the center !! The same info. is not existing in free space, so the system behaves there in un-biased way!

    Abdullah Al-HasanAbdullah Al-HasanКүн мурун
  • hi, can i use this video but with Hindi voice over.?

    Adil sheikhAdil sheikhКүн мурун
  • What if you would attach a parachute at the top or a weight at the bottom. Or both?

    Socrates NicolaouSocrates NicolaouКүн мурун
  • Now I can believe in Tom

    Tummala Sai PramodTummala Sai PramodКүн мурун
  • Waht if we add weight down the spring

    What IsWhat IsКүн мурун
  • Surely gravity would also affect the bottom of the slinky so it should at least move a little

    Ameer DuzanAmeer DuzanКүн мурун
  • What happens if you put a heavy weight on the tip?

    Mateo VargasMateo VargasКүн мурун
  • What about gravity?

    Sahil AntilSahil AntilКүн мурун
  • The Slinky works by pull force . As the slinky is pulled by gravity, and the slinky be pulled by stretch, the slinky stays as long as these forces are equal. Making slink no go

    Sharath SreeniSharath SreeniКүн мурун
  • What if a staright thread or rope is dropped? Will it follow similar characteristics? Every section of the rope is supported by a section above it. When you release the top of the rope, the tension is released and this information will propagate at a finite speed down the rope. So, will the dangling rope follow the same characteristic as the slinky? Or will it be different? Is it because of the flexibility that release of tension takes more time in a slinky to progress down. How this phenomenon can be represented mathematically, that can be applied to all falling body, i.e if body is rigid, the information of release is bound to propagate very fast (almost instantly) and if body is flexible, it will take some time. Can you share mathematically, what's happening and how to predict how a dangling body will fall, to understand better what's happening.

    Nitesh ChandraNitesh ChandraКүн мурун
  • Weird

    Elaine DoddElaine DoddКүн мурун
  • more...must have more lol please make more on this

    sinocaigsinocaigКүн мурун
  • So in other words, gravity isn't re-💀

    GabeGabeКүн мурун
  • This phenomenon makes absolutely no sense to me, just one of those mysteries I'll never be in on Sadge

    Robert LemboRobert LemboКүн мурун
  • There is a introvert in between top most Helix and the bottom helix

    jagnath Reddyjagnath ReddyКүн мурун
  • Self plagiarism is an offense

    няîssнои xняîssнои x2 күн мурун
  • Fascinating. Thank you.

    Molly BellMolly Bell2 күн мурун
  • And it doesn’t defy physics. It’s center of mass is still falling at the rate it’s supposed to. It’s center of mass just changes as the slinky compresses

    William BrinkleyWilliam Brinkley2 күн мурун
  • Is that why wtc7 fell so fast?

    MyBallzGotShockedMyBallzGotShocked2 күн мурун

  • The twisting motion is because the speed of sound measures the speed of force transfer inside the object. Since solids have a high speed of sound, the rotational force is transferred almost instantly. But since tension isn’t relieved until the accelerating mass catches up, it stays floating.

    RigoRigo2 күн мурун
  • Love your videos. You are one of the many people who have gotten me into science. (now changing majors from management to bioengineering)

    Petr MášekPetr Mášek2 күн мурун
  • And the award of $5000 goes to veritasium🎉🎉🎉🎉

    Prince KumarPrince Kumar2 күн мурун
  • Questacon! Loved going there when I was a kid.

    chimbrazochimbrazo2 күн мурун
  • Wait if there was a infinity slinky and you would drop it, the slinky would levitate?

    Padalec ZwyczajnyPadalec Zwyczajny2 күн мурун
  • Bottom of the slinky is the spirit of Wiley E. Coyote

    KaritKtanaKaritKtana2 күн мурун
  • Also has stored energy when stretched

    Justin BustinJustin Bustin2 күн мурун
  • this toy literally disproved flat earther's earth's moving upward at whatever speed theory

    RailRail3 күн мурун
  • Can we please get a video on lucid dreaming?

    Purvang VasaniPurvang Vasani3 күн мурун
  • what if someone cuts it in the middle while it falling?

    RaantasRaantas3 күн мурун
  • Doesn't the top also falls down faster than a fixed object would?

    Rei CaixaRei Caixa3 күн мурун
  • I love your channel, you inspire me!

  • Witchcraft!

    Sean SpartanSean Spartan3 күн мурун
  • Stop glitching reality...

    Sophia CristinaSophia Cristina3 күн мурун
  • Somebody should get a 500 foot long slinky and drop it off of a sky scraper

    YellowheadphonesYellowheadphones3 күн мурун
  • What if you dropped a non extended slinky from the same height as the extended one. Will the bottom of the extended slinky begin to fall as the bottom of the non extended slinky pass by?

    Franco ValenteFranco Valente3 күн мурун
    • Id assume not, because the non extended one would accelerate faster due to it having more potential energy from the mass being at the top

      Anonymous4045Anonymous40453 күн мурун
  • So techachly slinkys sorta defy gravity?

    Keaton TsangKeaton Tsang3 күн мурун
  • If one were to procure a giant slinky and hang it from a skyscraper with about 10 feet of clearance from the bottom of the slinky to the ground, and hang on to said bottom while someone at the top let go, would one also be held up while awaiting the slinky to collapse?

    Cole VonColeCole VonCole4 күн мурун
    • No. It needs to apply an equal and opposite force on the person holding it, but it cant

      Anonymous4045Anonymous40453 күн мурун
  • Please do not film or post vertical videos thank you. This one actually works for me, but I stand by my original statement. Please do not film or post vertical videos thank you.

    M McCreadyM McCready4 күн мурун
  • אני רק תגובה בעברית שחולפת פה

    Alanzo MAlanzo M4 күн мурун
  • You stole this idea from action lab shorts. Give credit.

    ____4 күн мурун
    • You realize this is a clip from a 10 year old video right

      ThatBlastThatBlast4 күн мурун
  • ☝️

    Krzysztof CieszyńskiKrzysztof Cieszyński4 күн мурун
  • Why does the bottom stay up there until the whole thing falls? Can someone explain ?

    Sagar SinhaSagar Sinha4 күн мурун
    • @Sagar Sinha yup it's equivalent to a rotating bucket of water which does not fall in the vertical position because of the inertial centrifugal force on it that equals it's weight....

      Dev_Invincible JeetDev_Invincible Jeet2 күн мурун
    • @Dev_Invincible Jeet thank youu!

      Sagar SinhaSagar Sinha2 күн мурун
    • The top part applies a force= -kx on the bottom which cancels the effect of gravity for the bottom part if you consider only bottom part as a system... If you consider whole slinky as a system then it's centre of mass is always in a free fall and it's towards the falling part where there is mass accumulation over the small space, so bottom has to stay intact in order to conserve the instantaneous position of the system's centre of mass.

      Dev_Invincible JeetDev_Invincible Jeet2 күн мурун
  • I watched this multiple times with out realizing because of how satisfying that slinky is.

    NobodyNobody4 күн мурун
  • How many times does it rotate?

    like. audiolike. audio4 күн мурун
  • This man so simply taught me how slinky falls meanwhile my teacher after using tons of formula can't tell me exactly

    KingKing4 күн мурун
  • Copied content, boring

    DerryPupDerryPup4 күн мурун
  • My question is that tension on the spring is F=-kx. With time x decreases but the opposing force, gravity is constant. Therefore sides of the equation are not equal and it shall start to move just as it was released. Perhaps slower but still it should be in motion. Which part am I missing?

    Canberk ÖzçelikCanberk Özçelik4 күн мурун
  • Does this mean if i got an infinite slinky and dropped it it wouldn’t fall because all the coils would be supported by the coils above them?

    Rainbow SheepRainbow Sheep4 күн мурун
  • It never fully collapsed.

    Ryan PetersenRyan Petersen4 күн мурун
  • Would this also work with a chain of monkeys holding each other? Or theoretically multiple people holding eachother in a line going down.

    TwoPointInfinityTwoPointInfinity4 күн мурун
  • What where’s the rest of the video

    Bitcoinicus MaximusBitcoinicus Maximus4 күн мурун
  • So if you make a gigant slinky with a platform at it's bottom and someone is standing on it... when you release it from somewhere high, the person can still stand on it without falling? Ok, gonna put this to the useless thaughts department in my brain.

    MichaelMichael5 күн мурун
  • 👍

    Jimnesstar Lyngdoh NonglaitJimnesstar Lyngdoh Nonglait5 күн мурун
  • Why aren't elevators held up with slinkies so when an accident happens the people inside have an extra second to jump out before it falls?

    CraigCraig5 күн мурун
  • Wow, you new explanation is basically my theory that I comments on your first video years ago that got alot of comments.

    koskey06koskey065 күн мурун
  • what if you touch both ends?

    KVKV5 күн мурун