oh yeaaaaaaaaaaaaa, deeply stupid,,

Skylor Williams Right, and if you jump from a tall building, it may seem that you are 'falling', but falling is not a real force. As mentioned in other centrifugal force videos, it helps if you view what's happening, from the same perspective. In other words, if you and I BOTH jumped from a tall building, it may 'seem' to spectators that we are both falling, but from your perspective after jumping from the roof with me, it would appear that I WASNT moving, and that I was motionless. That's the proper perspective BTW! That's why no one is ever injured when they fall from tall buildings, bridges or cliffs, because they aren't REALLY falling to begin with! See, doesn't that clear it all up? Lol

Correct, no one has died from falling off a tall building. However, many have died due to extreme deceleration.

Like hearing voices in your head

@@kirkhamandy Brilliant!

See? No harm, no foul. #bringbackthemerrygorounds

jimmyleg5 as do I. There is no better way to solidify this concept at a young age.

calling it dangerous makes you a pussy. shit and you almost won the game of comments.

I watched my friend break his ankle on a merry go round, dude said it was a wild ride, no regrets lol

We had daily merry-go-round tournaments where you would lose when you fly out. Best thing for kids

Geovanny Aguirre Helmets! I like it!

Geovanny Aguirre Made my day with that comment. 😂

nope let them play and strongest will survive fuck these fairy ass snowflakes oh no my kid pricked his finger. boo fucking hooo.

There is one at mine but it looks like a cage

Helmets don't protect you from long term brain damage. Look at all the football players getting CTE now. en.wikipedia.org/wiki/List_of_NFL_players_with_chronic_traumatic_encephalopathy

You're very welcome! 🤓

@@ScienceAsylum The man with the Science right here 😎😎🔥🔥🔥

It's gotta be repetitive

haha nice

Lul 😁

Are you a dad? I feel like you're a dad.

Haha I get it LOL XD

#CommentOfTheDay

+Worcester Exchange I approve this message.

Thanks Science Asylum.

To me it is a play on words or perhaps a rewriting of science from the fast. Extraction of the word 'centrifugal force' to be consistent with the new mindset should be extracted from the dictionaries and science books and by the way the word centrifuge perhaps be called inertiafuge. People that understand the words meaning have never had problem with the word. Splitting hairs is the way I view it, though the focal point is upon centripetal force rather than the opposite centrifugal force. The dispute is upon 'force'. When you design a bride you factor in potential forces and stresses on the bridge to evaluate how to make it be able to handle the projected loads. Personally, even if centripetal is more accurate - if - the elimination of the counter forces is probably inserted by some intellectual pin head to create a name for him/herself, or even inserted to complicate matters. Who knows why?

Thanks for the point about cutting the string, makes total sense.

I'm not sure if it's related bit, can anyone explainme why a bug can fly índice a car without hitting the back window?

You're welcome!

Cage Syler Thanks!

completely true

Alexander Ceja no this is a reactive centrifigal force, not the fictitious centrifugal force

My parents died in an merry-go-round accident a year before I was born so I never met them. I vote against merry-go-rounds.

+Jonathan Crymes I love hearing that my videos gets used in classes :-)

+Robin Vincent It's nice to hear they're appreciated :-)

*one force and one "feeling" ;P

yunged Thanks.

But a centrifugal force does exist, just ask Newton, thus when you swing a ball on a string the ball "EXERTS" a centrifugal force on your hand which you can feel and measure.

Most of the things we feel come from inside our bodies. You're trying to go in a straight line (because inertia), while the inward friction (centripetal force) from the merry-go-round keeps you going in a circle. This puts tension on your skin and muscles as they work to hold your body together. Your brain interprets that as an outward force since an outward force would cause the same thing to happen to your skin and muscles.

The Science Asylum It makes sense, thanks

qpwoeiruty eidjcn You're welcome. Thanks for watching :-)

You can tie both concepts together, mass, also known as how much inertia something has, you flick the frame of the knife but the mass of the blade has inertia and can move around the pivot(hinge), the blade resists the motion and from the ARF looks like it is rotating , much like the merry-go-round and pendulum explanation, if you flick it up, but if you flick it down gravity helps, making it easier

Glad I could help a little 🤓

tjakal Philosophies for raising kids will change again. They always change.

Lets just hope it changes before said nuclear war then ;)

😂😂

Watch your language

Pretty sure it's not the flying off that's the problem with the design. It was how many kids got a limb caught underneath and twisted to breaking.

You're welcome! Thanks for watching! ...it's nice to know people are spreading my channel :-)

You're welcome!

Tori Bove Glad I could help!

For you sitting in the car the pendulum seems like some force is pushing it towards back of the car. This isn't truth: it is the car pushing itself and everything inside forwards. Pendulum just follows the string holding it, while the roof accelerates forwards.

Ahh the old one comment two comment experiment

Mike Schellman The reason the thrown or dropped object would even move toward the outside of the circle is because it's already moving. If you're on/in something spinning, then you're spinning and so is anything you're holding. I should do a video on "artificial gravity." That would be fun...

***** Well, maybe I should phrase my question differently. I am working on a short story involving a cylindrical starship. I'd really like the physics to be accurate, so I was wondering if there were any peculiarities I should be aware of? Could people play catch or baseball - or would it be weird? What would happen if people were to climb the axis? Release a helium balloon?

Mike Schellman Way to go trying to be accurate! Once the cylinder gets up to speed, anything in contact with the outside edge will experience Earth gravity (which is likely almost everything). Most activities would be like normal. However, if there was a ladder you could climb to the center/axis, you'd feel lighter and lighter as you climbed. When you got to the center/axis, you'd feel weightless again. As for the helium balloon, it should float up to the center/axis on it's own and then stop in the weightlessness.

Mike Schellman The world needs more hard science fiction! Atomic rockets (www.projectrho.com/public_html/rocket/) is very engaging with tons of articles on spaceship design, realistic space-warfare, etc for sci-fi authors. Don't let the 90's website aesthetic fool you - it's all really quality stuff. I found it the other week doing my own research and can't stop reading it :)

***** "Once the cylinder gets up to speed, anything in contact with the outside edge will experience Earth gravity (which is likely almost everything). Most activities would be like normal. However, if there was a ladder you could climb to the center/axis, you'd feel lighter and lighter as you climbed. When you got to the center/axis, you'd feel weightless again. As for the helium balloon, it should float up to the center/axis on it's own and then stop in the weightlessness." 2001 A space odyssey. Everything you want to know about space is in there.

Is this pancake on a plate?

Most of them are.... goofy I mean.

If you're in the ARF, you _can't_ ignore these fake forces. That's the problem with ARFs.

Calvin Hulburt I'm not familiar with a second order real force. Is this something real I can find out more about or are you generalizing or ? No sarcasm here at all. I'm trying to grapple with the coriolis effect and being told it's not real because it doesn't happen in all frames of reference. Specifically with regard to storm systems that rotate CCW in the northern hemisphere and CW in the southern. Being told the rotation is a fictitious force doesn't bother me (in the sense that it's not being called non-existent, it's simply being labeled differently). What troubles me is when I'm told that because centrifugal force doesn't exist neither does the coriolis effect and therefore the rotation isn't real... WTF?! In the frame of reference sense it's true that if I travel in a circular reference frame at the same speed as the hurricane I don't see the rotation, but there's definitely something going on (either kinetic or otherwise, and my understanding of inertia in a system like this would be that inertia is kinetic centrifugal energy opposite to centripedal potential energy ?). I hope that made some some sense? I'm not a physicist - obviously.

Your confusion and distrust are only due to being told bullshit physics. Any acceleration will be part of an inertial force. This is a real force. To understand how this has come about google Newton's second law. You are likely to come up with a false expression that states "Newtons second law can formally be stated as:" Following this will be a statement that is true but not his law as his law was formally stated as F= dP/dt with vector notation. Their statement is half of what Newton said. The truth is we have two forces in balance and the second term is the inertial force. This is physical reality and you can prove the truth of it in many ways. With coriolis acceleration you will have a force that will contain two velocities that act as an acceleration. Reference frame arguments are largely bullshit. The reference frame is the choice of the person doing the analysis and not the object undergoing acceleration. A linkage undergoing a coriolis acceleration will come apart due to the load no matter what frame you choose. These arguments happen because having failed at step one with Newton's law the physics crowd is constantly trying to invent ways to cover for the real outcome that occurs. As a retired engineer who had to determine loads on dynamics systems I feel the bad information being fed to the unsuspecting is making physics way too hard. You cannot come to understand what is false. I have confronted the idea of this definition of the second law and the false notion that centrifugal force doesn't exist. It is amazing how these people squirm and try to change the subject or spin the argument into some complex frame or redefine what fictional force means. Their understanding is shallow and bars their arguments from reality. I am currently writing an article that is becoming a book on this subject and may soon do a video.

Calvin Hulburt Thanks, I look forward to your video. Is there a beginner's physics book that has it right you'd recommend? I hadn't planned on getting to heavy into it but in case you haven't noticed, though it sounds like you have, the first world is dumbing down in extreme ways. The unbelievable things people come up with make it really hard to study anything fringe because that's where we've always needed a whacko strainer and now - geez it's like trying to find a special piece of hay in a haystack. Thanks again, I always breath a sigh of relief when I run into someone from my own era of career. My field was software. Cheers.

I studied physics from Halliday and Resnik, Spelling may be wrong. While good, I found that like most texts they are geared toward solving problems and avoid questions of physical reality. It was in Engineering that I came to understand how inertial forces are simply forces. When you solve systems of differential equations it becomes obvious. There are a few videos about what I am coming to call intuitive physics. Rather than rely on mathematical arguments people are describing what physically causes gyroscopes to precess. Thanks for the support and best of luck.

To understand centrifugal force consider how Newton's second law applies. There is a string providing a centripetal force which is balanced by the inertial force of an accelerating mass. This is the centrifugal force. For there to be tension in a string there must be a force either end. Forces act in opposition. The mass is force free when traveling in a straight line and exerts a force when it is not. Once the string is cut the mass flies off but at this point there is neither force. Inertial forces exist if there is an acceleration. To point to the behavior when the force doesn't exist is misdirection.

Yes. Exactly correct.

It moved away because it tried to go in a straight line (which the string prevented): kzfaq.info/get/bejne/e92IZ8yStaiplac.html

No, it won't go away from the center. It goes straight forward: kzfaq.info/get/bejne/e92IZ8yStaiplac.html

The car will fly outwards tangentially due to its inertia.

There's a force from air pressure from the atmosphere.

That's only true if the surface is stationary, but the merry-go-round keeps spinning as the ball moves: kzfaq.info/get/bejne/e92IZ8yStaiplac.html

@@ScienceAsylum oh i got it thanks alot. this is the first time Newtonian mechanics messed up my mind btw your videos are good and helpful, keep up the good work mate

kzfaq.info/get/bejne/e92IZ8yStaiplac.html 🤓

Kevin Fernando That's because the SciShow video didn't really explain anything.

The dashed arrow is the direction I would go if I slipped off the merry-go-round. In fact, I did the actual experiment in a later video: kzfaq.info/get/bejne/e92IZ8yStaiplac.html

Yep.

+Marissa Olvera Glad you liked it!

1. Rotational motion is extremely weird, so don't feel bad if you don't understand it right away. 2. The idea of centrifugal force is extremely useful (even if it's not real) when you're part of thing that's spinning... like sitting on a spinning merry-go-round or inside a spinning space station something. It's just unnecessary when you're standing still on the ground looking at something spinning... like your "centrifugal clutch." 3. _Centripetal_ force may point toward the center, but that doesn't necessarily mean the thing experiencing it will move toward the center. In fact, it often means it's distance from the center stays steady. That thing could also move away from the center if the centripetal force is intermittent or completely disappears. I demonstrate in this other very short video: kzfaq.info/get/bejne/e92IZ8yStaiplac.html The ball appears to be moving away from the center of the merry-go-round for someone sitting on that merry-go-round... but actually it's just moving sideways.

+surya slim shady (surya the great) What you think of as "feeling your weight" is actually just you feeling the normal force on your feet. You can't actually feel your weight.

+ohaRega Anytime we do merry-go-round stuff, the cameras are firmly attached and there's always more than one person around. Safety first.

***** I love it when people tweet pictures at me from class. It's nice to know the videos are useful.

MinutePhysics did a great video on this several years ago: kzfaq.info/get/bejne/ac1-nsqbns6Wn4E.html

You're welcome!

You might not feel the force of friction you exert on the merry-go-round, but you do feel what your body has to go through to make that force happen. That's what I'm talking about in the video.

It's actually about the moment of inertia( think it of like rotational inertia or rotational mass ) when you are nearer to the center it's lower hence you will be faster And vice versa (For the same torque applied angular acceleration is inversely proportional to the moment of inertia Like f=ma Its t=I(alpha). )

The force of human intervention. It took a person pushing the merry-go-round to get it started moving. This will involve traction, tension, and the normal force, all of which are ultimately a product of electromagnetism.