Self-correcting Inverted Pendulum Defies Gravity

Рет қаралды 173,323

3 жыл бұрын

In this video I show you how an inverted pendulum works. The physics behind the gravity defying pendulums requires complex equations, but has a simple explanation.
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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: 606

@Aledharris 3 жыл бұрын

Love that he’s wearing the gloves while his wife is pushing the saw blades with a wooden stick! xD

@MrEazyE357 3 жыл бұрын

They're not saw blades.

@rainbowsixsiegeandgta2401 3 жыл бұрын

@@MrEazyE357 yes

@williamsauls2648 3 жыл бұрын

Clipboard guy

@rbad6215 3 жыл бұрын

shes the safer one. NEVER wear gloves when using power tools. NEVER.

@windowsxpmemesandstufflol 3 жыл бұрын

Or is she?

@OrigiZ 3 жыл бұрын

3:36 - when I'm in the mood, but she's not.

@PozieNayan 3 жыл бұрын

Me: 😚 But my wife...

@quahntasy 3 жыл бұрын

*Wish we had a science teacher like him, when we were in School*

@jesussavescars807 3 жыл бұрын

We do he’s here now in the new age of school watch and learn

@Maxim.Teleguz 3 жыл бұрын

*The reason we are watching now is because of the dumb teachers we had.*

@JuanReina08 3 жыл бұрын

@@Maxim.Teleguz imagine being able to properly convey an idea, while in the process also teach? Sounds like a gift and unique ability. Don't be so harsh on your teachers.

@girlsdrinkfeck 3 жыл бұрын

@@Maxim.Teleguz u wouldn't know English to comment such dumbness if it wasn't for your teachers

@nickx1041 3 жыл бұрын

When were still in school oof

@maciejp7829 3 жыл бұрын

*Mom walks in on me - Mom that's not what you think! I'm just jiggling my pendulum!

@luke3491 3 жыл бұрын

Coom

@oranges1758 3 жыл бұрын

@zjz1 3 жыл бұрын

See? It stays up

@spyrgelispyy 3 жыл бұрын

@@zjz1 you made it even better 😂

@_oracle 3 жыл бұрын

But don't read my name

@lakrumallawa6454 3 жыл бұрын

03:30 Me and the neighbors kid playing together.

@EvanReichert 3 жыл бұрын

Playing with each others pendulums?

@lakrumallawa6454 3 жыл бұрын

@@EvanReichert ah yes. A cultured reply.

@glitchdinvr4248 3 жыл бұрын

@@EvanReichert I-

@analogdistortion 3 жыл бұрын

3:40 - Their typical foreplay.

@Javierjr1224 3 жыл бұрын

🤣

@EagleJet420 3 жыл бұрын

💀

@devonchristopher5837 3 жыл бұрын

I. WANT. THIS. GUY. TO. BE. MY. TEACHER. Correction : WE.

@akashgawai7174 3 жыл бұрын

Absolutely

@tomasgomes8793 3 жыл бұрын

If he were your teacher, he'd be teaching you the same lame shit you learn already, it wouldn't be any different. You'd be learning the equations behind this, not the theory. But sure, I get what you're saying.

@MohitKumar-ui4tg 3 жыл бұрын

@@tomasgomes8793 😂😂😂

@kingofmonsters7452 3 жыл бұрын

He is , Just difference is he is teaching on YT and to Millions of Peoples

@StemLG 3 жыл бұрын

@@tomasgomes8793 100%

@ArieteArmsRAMLITE 3 жыл бұрын

3:30 Cannot believe you recreated me and my wife's love life on your channel. Thank you. I cried.

@internetuser8922 3 жыл бұрын

"Worst job ever" - She's doing the worst job ever, or she's been assigned the worst job ever, lol?

@sutapadey5274 3 жыл бұрын

03:33

@rakshithavb7108 3 жыл бұрын

He's saying about the pipeline just above his wife's head that he worked on

@markkestner6514 3 жыл бұрын

He’s saying she was assigned the worst job.... lol

@_oracle 3 жыл бұрын

Don't read my name

@Alto_C 3 жыл бұрын

both

@rahulsinha12043 3 жыл бұрын

Gravity: This Pendulum is going to end my whole career 😂😂

@jamesbizs 3 жыл бұрын

👎🏻

@Narayan 3 жыл бұрын

Without gravity we wouldn't even be here playing with pendulum, who is the winner? Of course gravity 👑😂

@rahulsinha12043 3 жыл бұрын

@@Narayan LMAO 😂😂😂

@Zeldaschampion 3 жыл бұрын

5:04 That poor woman, she knew the jank was coming and it did.

@BigfootWithMemes 3 жыл бұрын

In a parallel universe, gravity defies self correcting pendulums

@kingofmonsters7452 3 жыл бұрын

Imagine you pooping upside down and your poop goes in space

@GlitchedBlox 3 жыл бұрын

5:04 HERE'S JOHNNY!

@rijin9460 3 жыл бұрын

🤣🤣🤣

@Mikidy303 3 жыл бұрын

Finally! A good use for a Ryobi reciprocating saw. I'm sure the motor will still burn out shortly

@avoirdupois1 3 жыл бұрын

This episode was action packed. Love the expressions of your assistant!

@warchiefgaming4690 3 жыл бұрын

I want to see you and your wife doing experiment together... It's really good video btw❤️

@avidinvestor9409 3 жыл бұрын

Ever notice how he starts his videos with “Today we’re going to...” Lol, cracks me up 😆

@rockinrobin9093 3 жыл бұрын

Hey everyone! Today we’re going to...

@marco_gallone 3 жыл бұрын

This is one of the coolest videos you’ve released yet!

@jabhomemonitoring 3 жыл бұрын

Very nice. As always, short and sweet and to the point. Thumbs up. Thank you.

@miomimomiro 3 жыл бұрын

Dude. I love you. This is just great. Also opening eyes through experiments like this gives me (a boring 30 yr old thinking these things all the time and now understanding way too late why I wondered what made me like certain teachers and some not. The creative ones who always put in a twist that blew our minds were without a doubt the ones most kids enjoyed and why most of my school liked chemistry. The teacher made miniexplosions and showed us a lot of experiments so that stuck with us. And through these creative ways of showing science I personally believe is the way to enhance the curiosity to push science forwards and think outside the box to bring something we can use in the future. Something we can’t even imagine yet. P.S. To anyone reading this I want to say: Stay curious! Find what you love and keep at it. If you have trouble finding what you love - try to remember what you love doing as a kid and/or still do that brought you the most joy. If you want to turn it into a business to make a living out of it = check out what businesses are built around the thing you love and do that. And if you want it just as a hobby - just do it! You’ll start to see more happy moments in 6 months. I promise. ❤️

@grandunification6226 3 жыл бұрын

Amazing video , loved the simple saw idea

@jackroom1261 3 жыл бұрын

At 3:00 has anyone else noticed yes the pendulum is inverted.... but he’s basically became the pendulum? And also shoulda probably covered isochronism in this video since it’s on pendulums

@kingofmonsters7452 3 жыл бұрын

Everyone is gangsta until Triple Pendulum walks in

@qpSubZeroqp 3 жыл бұрын

When a pendulum is a better raver than you 😂 4:33

@chinmay1682 3 жыл бұрын

Woaw what a best video ever seen. I haven't even thought about this. Nice video

@fmusicede7384 2 жыл бұрын

Loved it! thanks man!

@rekhapc9899 3 жыл бұрын

He:Inverted pendulum Me:Inverted bullet

@AliShuktu 3 жыл бұрын

Kids detected! CALL NSA!

@SteveFrenchWoodNStuff 3 жыл бұрын

The double pendulum glow paint (?) part at 4:32, combined with the music he switched to, made for a really cool segment.

@mundymorningreport3137 3 жыл бұрын

I think you have the inspiration for an amusement park ride with that double pendulum or even just the inverted one. Nicely done.

@user-jt6ej7vh2p 3 жыл бұрын

3:34 lol

@catkeys6911 3 жыл бұрын

Interesting battle between gravity and inertia. I had a really great physics teacher in my senior h.s. class, and this guy reminds me of him. Mr. Rosenblum had a more laid-back personality, but he was very good with physical demonstrations that helped us students to understand some of the principles and forces in physics while also making it more fun.

@analkalinne 3 жыл бұрын

5:04 I'm confused... Was this a face of fear or enjoyment ?

@somecsguy9824 3 жыл бұрын

Yes. 😂

@maxwellsequation4887 3 жыл бұрын

Fenjoyement

@Sfo97 3 жыл бұрын

Such a simple concept, that was very cool

@srinjoy2003 3 жыл бұрын

Loved it!

@anaphylastiks 3 жыл бұрын

Your videos have helped me apply physics and math to building tools. Thanks.

@alternativeenergychannel2289 3 жыл бұрын

Wife : Goodmorning Love what will do today ..?? Walking? coffee ? ActionLab : Well ... I am goint to vibrate a huge jigsaw in the living room and you are going to push a pendulum with a stick...😁😁 Nice video.

@mar8925 3 жыл бұрын

My first thought was to shift the center of mass to the short end of the pendulum. That way, the long side goes up. The torque Idea is cool and fun, however it does require constant energy input. Alongside with other disadvantages like noise. This is a good introduction to torque. The background music is at an appropriate volume. Overall the video quality is great. Thank you very much for this video. Hope you keep posting more.

@igxniisan6996 3 жыл бұрын

3:34, 😳 *Worst job ever?* Oh no.. my mind just thought of _something else..._

@UDX6T 3 жыл бұрын

Worst job ever was done by whoever wrote your name

@igxniisan6996 3 жыл бұрын

@@UDX6T same to you ❤️

@UDX6T 3 жыл бұрын

@@igxniisan6996 Well my name (in Bengali) literally means "Festival Giver". Your name however is like a 1 year old drew something while pooping.

@Millenniumgameryatharth 3 жыл бұрын

@@UDX6T lol 😂

@baptistebauer99 3 жыл бұрын

Derived the equations of motion for the inverted pendulum on a vibrating pivot for my Classical Mechanics class. You can find it in Laudau's Course in Theoretical Physics Series, Volume 1, Mechanics.

@nealsonf 3 жыл бұрын

Very cool!!! Learn something new once again! Thank you so much!! Much GRATITUDE and Love!

@aayush1091 3 жыл бұрын

4:33 holy crap, that's so amazing😮😎😎 It looks so cool with that uv light charging that glow in dark background😍😎😘

@wargreymon2024 10 ай бұрын

This deserves more views

@hatmanpat1211 3 жыл бұрын

I love how the music matches perfectly with it 4:33

@bruh-21 3 жыл бұрын

Dude this is prob the coolest thing i've ever seen involving pendulums

@nakulankurmullam2982 3 жыл бұрын

Tbh when i saw this on steve moulds channel something didn't quite click but when i saw ur video its was really clear

@Joe_for_real 3 жыл бұрын

I think that Mrs. The Action Lab deserves a little more recognition in this video.

@armageddon199 3 жыл бұрын

Up it goes, up up and away!!

@Sunitabishtsona 3 жыл бұрын

Explaining very effectively 👍

@adityakrishna4101 3 жыл бұрын

Science does work! And that needs to be shown along with concept in classrooms... Nice content!

@sossiepie2243 2 жыл бұрын

4:33 the pendulum isn't chaotic at all, it's just perfectly musical!!

@NoGufff 3 жыл бұрын

Very brave of you, Mrs Action Lab.

@davidcovington901 3 жыл бұрын

As usual, this channel does basic but surprising physics things I've seen nowhere else. Show people the scene at 3:45, ask them to figure out what is going on. At 4:00 seems like a good sword invention. Somehow.

@navrag4927 3 жыл бұрын

I did all these in my childhood.....still didn't know there was science even behind this😂

@mayar9928 3 жыл бұрын

is there anything without science behind it?

@jamesbizs 3 жыл бұрын

Lol compared to what else behind being things?

@thelittlebrat6418 3 жыл бұрын

Sames

@imm2mthankgod616 3 жыл бұрын

I can see a couple of kids playing with a reciprocating saw with a blade attached to another blade in the garage video games would become obsolete

@custos3249 3 жыл бұрын

@@mayar9928 Homeopathy, psychics, dousing rods, "alternative" conclusions from various forms of science denial, etc. Granted, you could argue psychology is relevant to understanding their perpetuation, but, evidently, psychology isn't a science. Which is a good thing so we don't have to worry about the Dunning-Kruger Effect and falling into one of the above items.

@fishnmaster421 3 жыл бұрын

This is cool. I never knew this reaction would happen

@Sunitabishtsona 3 жыл бұрын

Excellent and valuable information for students

@brighton2862 3 жыл бұрын

could you do this with more segment to make a no gravity worm?

@lakshmikanthyada1688 3 жыл бұрын

Very good example

@egadzooks 3 жыл бұрын

This was truly mind blowing. I think I'll need to do some free body force diagrams to understand this effect

@vinaykumar6499 3 жыл бұрын

Excellent

@Naiemaa 3 жыл бұрын

The look on the lady’s face... 😂 Thank you both for the video 👍🏻

@Elan_Altair 3 жыл бұрын

This is so awesome 😄😁

@mateomatta2381 3 жыл бұрын

Her reaction is so sweet haha. Funny and impressive experiment!

@bhavyajain638 3 жыл бұрын

This is the best science channel. I wonder how he thinks about these wonderful topics. They are always unique and mind blowing.

@MarkMellors 3 жыл бұрын

This also works for continuously flexible assemblies, like bike brake cable outers, net curtain wire and some stuff ropes

@dijasom 3 жыл бұрын

I like the way you solved this. Reciprocating saw was best wae.

@immuhere6877 3 жыл бұрын

What a great idea 👍👍👍❤️

@h7opolo 3 жыл бұрын

i would suggest modulating the speed of the sawzall power tool with regard to the periodicity of the pendulum for most efficient torque.

@UnbelievablyGauche 3 жыл бұрын

Please drop a sheet of paper in a vacuum. Vertically and horizontally. It would be so satisfying to watch it fall straight down, without a flutter. But horizontally, would it bow in the middle???

@UnbelievablyGauche 3 жыл бұрын

@@Belowtheroots so gravity is pulling equally on it at the centre as at the corners?

@jamesbizs 3 жыл бұрын

@@UnbelievablyGauche ugh, yeah? Why wouldn’t it be?

@UnbelievablyGauche 3 жыл бұрын

@@jamesbizs isn’t there more weight in the centre? I knew that was a stupid question when I asked it. Edit: if you imagine 4 people holding a blanket at the corners, it would dip in the centre. That's my thinking.

@jpe1 3 жыл бұрын

Even better: make a small parachute with a weight at the end of the shroud lines and hold it “upside down” (weight at the top, parachute dangling below) and release that in a vacuum. It should fall with the parachute part remaining at the bottom and the weight up top.

@somecsguy9824 3 жыл бұрын

@@UnbelievablyGauche Remember that acceleration is not dependent on weight (or, more correctly, mass). That's the whole point of the experiment of dropping something in a vacuum that is normally highly affected by air resistance (like a piece of paper or a feather).

@lakshmisaienterprise9002 3 жыл бұрын

Good information

@mxcollin95 3 жыл бұрын

Awesome!

@ZeacorZeppelin 3 жыл бұрын

This is really cool

@GarretKrampe 3 жыл бұрын

You are a crazy bugger . I love it !

@AZ-wg3eg 3 жыл бұрын

Now we just jiggle a spacecraft, apply some assisted lift and we have a hybrid gravity propulsion vehicle HGPV. With the control center suspended by rubber band material to obsorb the shaking.

@michaelcombrink8165 3 жыл бұрын

This was cool! Didn't think it would work for multiple lengths/weights/frequencies, I thought it would have to be perfectly timed,

@brendanbush2174 3 жыл бұрын

At 1:50 I can see the gears turning on what his hands are supposed to be doing, but he nailed it. My brain would just shut down and get the movements 100% wrong

@todaytrendings3547 3 жыл бұрын

Simply superb 🤠 🙂

@Get_CreepD 3 жыл бұрын

Where can I find that double pendulum set up?

@nipendrasingh2707 3 жыл бұрын

Very nice video

@chrisBruner 3 жыл бұрын

That was cool!

@kuldeepsingh-lq2zc 3 жыл бұрын

Wow this is super fascinating 🧐

@rupeshkumarkushwaha5213 3 жыл бұрын

Now I know why the pivot point was oscillating harmonically in the inverted pendulum lagrangian problem.

@user-ez3iv6ji5c 3 жыл бұрын

This is the only channel that makes physics, a course I’ve chosen to replace with ap bio, interesting. I’m aware this is a superficial depiction of this topic that lacks in the equations/concepts associated with it; but, I guess this is what you have to do to hook our short attention spans.

@davidprock904 3 жыл бұрын

5:03 No sharp blades were harmed in the making of this video.

@lanticocean 3 жыл бұрын

That pendulum got moves

@ecneicsPhD4554 3 жыл бұрын

The look of horror towards the end in your friend's face...XD

@Sunitabishtsona 3 жыл бұрын

Very interesting topic

@m.parikshith247 3 жыл бұрын

u r simply amazing bro...

@Cyber_Cowboy 3 жыл бұрын

0:10 "ladies"

@lakshmisaienterprise9002 3 жыл бұрын

Have to learn more from him very good things he is teaching intrested

@dp0004 3 жыл бұрын

Energy v gravity? You continue to amaze me.

@Jkauppa 3 жыл бұрын

you could also insert something really heavy, inside, below the pivot axis

@Jkauppa 3 жыл бұрын

you just invented a self-erecting sword-saw

@manishthakur3638 3 жыл бұрын

Very good

@NicoSmets 3 жыл бұрын

Wow, that's surprising and amazing.

@DiwanSingh-hd9ud 3 жыл бұрын

Very nice

@Negentropy. 3 жыл бұрын

2021 already blowing my mind

@dale1956ties 3 жыл бұрын

4:28 reminds me of the way a Tilt-a-Whirl works.

@harshbandodkar5833 3 жыл бұрын

Make a video on quantum computing

@balajisriram6363 3 жыл бұрын

sooo cool!!!

@01DOGG01 3 жыл бұрын

Thanks, I've wanted someone to do this for a long time. I once saw a bunch of straight rods connected by ball joints. Of course the thing collapses in on itself, but it stood upright once they vibrated it. You only have 1 joint but it's still the same principle. I actually asked you to do this ages ago but you can't read all the comments naturally.