ฝัง
- เผยแพร่เมื่อ 17 ก.ย. 2024
- Roller coasters give people the opportunity to experience physics in dramatic ways. In this episode of SciShow, we break down how physics work on roller coasters to give you the ride of your life!
Hosted by: Michael Aranda
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Sources:
www.coaster101....
www.britannica...
physics.bu.edu/...
hydraulicspneum...
themeparks.abou...
hyperphysics.ph...
science.howstuf...
www.britannica...
hydraulicspneum...
physics.gu.se/L...
web.mit.edu/8.0...
www.feynmanlect...
www.explainthat...
physics.bu.edu/...
www.britannica...
hyperphysics.ph...
www.princeton....
www.physics.by...
math.ucr.edu/ho...
Images:
commons.wikime...
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commons.wikime...
pixabay.com/en...
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I had to restart the video because I was distracted by your shirt.
Same
yeah xD
Why is it?
Responsible people take steps to prepare to watch this video.
+Giles Bathgate stop distracting me!!!
If your a coster enthusiast then this is like a retake of the first day of school
TRUE!!!
On my first day of school I learned the difference between your and you're.
@@ilusnforc3 I learned how to spe) coaster
Lol just refreshed to see if there were any new vids and this came up 12 seconds ago.
You should've talked about linear induction motors and linear synchronous motors for launches. They're more common than hydraulic launch systems.
I'm sooooo disappointed with this SciShow video. You missed the perfect opportunity to film your explanation while riding on a roller coaster.
Who thinks Michael Aranda should be punished with a trip to an amusement park to re-shoot this episode?
If they did that then no one would hear them.
+Darticus the Great yes you could. I've seen science demonstrations on a roller coaster before.
Punished? Pfft... That's a gift! ( ͡° ͜ʖ ͡°)
yeah or it would be a video of him getting his phone confiscated, no joke, I was in valleyfair a few weeks ago and we got stopped on the chainlift on wildthing about 3/4 the way up because someone had there phone out so someone walked all the way up from the station to confiscate it
Do it! Do it! Do it!
could've done with some impressive stats on the forces involved in average roller coasters. maybe a mention of fastest speeds, highest G-forces, largest loops, etc. and some shout outs to the engineers and designers, who have to work the physics into real-life constructions. safety mechanisms could also use a good mention, along with what happens when they're ignored or fail.
i should become a scriptwriter for SciShow.
This taught me more in 3 minutes than my physics teacher did in a year
so that physics class is 7 years ago
+SciShow : A slight mistake: A permanent magnet can't stop a train, because its strenght is related to the velocity. The higher the velocity is, the stronger the braking force will be, which is quite handy. But on the other hand, the lower the speed is, the weaker the braking is... So in the end it can't stop the train, in theory. In reality, friction (both air and contact friction) will do the job, but manufacturer usually have a friction brake or a friction tire at the end for that purpose.
The picture of the skid brakes is a picture on the Thunderbolt in Kennywood in West Mifflin, PA. My home amusement park. So cool
As a member of the American Coaster Enthusiasts and a long time fan of Sci-Show, I feel obligated to tell everyone so they can further their coaster experiences and endeavors.
Coaster 1: Nitro at Six Flags Great Adventure
Coaster 2: King Da Ka at Six Flags Great Adventure
Coaster 3: Millenium Force at Cedar Point
Coaster 4: Unknown
Coaster 5: Top Thrill Dragster at Cedar Point (+SciShow This ride doesn't use the LIM, but uses hydraulics like King da Ka)
I hope this helped anyone out! :P
Top Thrill does use LIM for braking as described in the video. It uses them for regular braking and also for contingency braking for roll backs.
nitro is pretty average if you ask me
danbert87 Thanks for correcting me. It's always nice to see someone who can help someone else :P
deathpony698 Nitro has received countless awards, is an airtime machine, and by many is known as the 3rd, 4th, or 5th best coaster in the world. It's a B and M hyper, why is that average? Please elaborate?
R Hollister Idk man, im not into this stuff. I just didn't like how that one feels. It's the negative G's or something.
Can you do one on cerebral aneurysms? I had one rupture at 19 and would love to learn more!
oh hello there cerebral aneurysms guy, keep it going champ.
Wait, you are still alive? You are one very, very, very lucky person.
I literally just came back from Thorpe park a few hours ago lol the timing is on point
I'd never really thought about how those fast accelerating roller coasters worked, that's really cool :)
Fascinating! One minor correction at the end: magnetic brakes on coasters generally can't bring the car to a complete stop, so they're unsuitable for use as a parking brake. There will be a mechanical brake of some kind at the stopping locations. The magnetic brakes can reduce almost all of the train's momentum, however.
You guys forgot to talk about those roller coasters that use eletromagnets to accelerate the car
+Minn505 and positive g force
accelerate the train*
+Minn505 It also has misleading explanations of Lenz's Law and magnetic brakes. You can go find my other comment on this video if you're curious how they're wrong.
I was about to say, why didn't they talk about Linear Electric Motors?
I think you mean Linear Induction Motors.
Can you guys do a vid on why perfectly circular loops are dangerous, and why we use "tear-shaped" loops instead?
Supposedly, tear-shaped loops distribute the g-forces better. You don't feel as much jerk, which is better on the body.
Less neck strain. Having ridden a coaster with a circular loop, I can definitely confirm that the teardrop loops are more comfortable. But it's not dangerous.
Top thrill dragster is an amazing rollercoaster. Millennium Force is great too.
CEDER POINT FTW!
I will allow your preference for Top Thrill Dragster even though Kingda Ka is taller and faster :)
(not really by much anyway)
+Samantha D. Yeah but top thrill dragster only has lap bar restraints and no shoulder restraints, so it gives a more open experience, especially at the top.
Sounds like a pretty sweet time! I hope to make it there one day to ride it. I can't imagine riding it without a shoulder harness haha.
Pretty sure it has shoulder harness man, though its been about 5 years since I last rode Top Thrill. I remember not being able to put my hands up much past the top of my head due to the harness. Still, it's an awesome ride.
Excellent video. This guy's a top dog. Expert physics explanations without dumbing it down for John and Jane Q America
I'm a big scishow fan plus physics nerd who has been playing roller-coaster tycoon and watching a bunch of videos for it, finally the TH-cam algorithm found the absolute perfect video for me
How do they get videos out so fast? it's like 1 a day!
They probably make like 10000 vids at once then upload them all in n a week
I used to hate the Superman at Darien Lake because of how scary it looked, but now I love ever since I went on it.
so 2:00 so thats what that really nice feeling is its only gravitate pulling you down
Coaster Enthusiasts call it "airtime"
Just saying, there are also LIM and LSM (both magnetic) launches, air-powered launches, and the good old flywheel launches and weight-drop launches, and maybe more that I'm forgetting. And also while you were already talking about airtime, might aswell mention negative Gs that are arguably even better than weightlessness.
Yes I know the comment is too late.
A little note, these magnetic brakes also generate heat when the eddy current dissipate... Law of conservation of energy again
Please use imperial measuments, even flash them on the screen when saying metric. I'm sure I'm not that only one out there that would appreciate that. Thank you.
Also, could you possibly do an episode on heat seeking missile technology? Thanks again, you guys are great!
Eddy current brakes cannot bring a roller coaster to a complete stop. As the velocity decreases, the strength of the eddy currents also decreases, causing a decreased braking force. Friction brakes are required to fully stop the train and hold it in place.
literally was thinking days ago that Sci show should do an episode on roller coasters like omg this is freaking me out
As someone that is studying to design these, I love this video. :D
I was on the Red Force rollercoaster and I asked myself- How is this even possible? Being 112m above the ground accelerating to 180[km/h] within only 5 seconds, with the massive overload on the railway track. I really liked The Paraborollercoaster... (a.k.a Red Force).
My physics teacher's version of "You have to walk before you can run" was "You have to learn to resolve forces before you can build rollercoasters."
Yay kennywood! @ 2:12 Thunderbolt = best wooden rollercoaster
This video has its up and downs
I love roller coasters thanks for the video
Describing LIM and LSM magnetic launch systems would've been cool. Also, magnetic brake systems cant stop a train, so both magnetic and friction brakes need to be used.
Omg I just went on the roller coaster shown at 0:19 yesterday. Its Nitro from six flags great adventure.
What steps does one take to prepare for a nap?
This was a roller coaster of emotions for me
Awesome video! I went to universal studio and Disney Hollywood studios yesterday! And the day before that
There is a roller coaster at Knott's Berry Farm called Montezuma's Revenge. The initial force to start the car is powered by a flywheel. Also the California Screamin' roller coaster at Disney's California Adventure uses an induction motor for the initial force.
I love seeing the rides from cedarpoint and the thunderbolt from my hometown amusement park called kennywood in Pittsburgh PA (:
Love your shirt man.
Woulda never guess there was so much physics involved! Incredible
Was at King's Dominion the other day. Pretty sure I got a concussion from all the rides that felt the need to stop within like 2 seconds. "Gradually come to a stop" my ass; for some reason they feel the need to slam on the breaks to stop the car even when they've got a bunch of track left -_-
There's also magnetic launch systems and all.
I need his shirt. "Responsible people take steps to prepare for a nap."
Yes.
DUDE! Make one about the physics of Motorcycles! You will find there's a lot of fascinating nerdy stuff about them!
SO cool..........I always wondered exactly how rollercoasters worked......I was only on one ONCE in my life, much of it was terrifying! 😮
You forgot about lagoons wicked. It uses electro magnetics to shoot it up over its hill. It is a really fun experience because there is No hesitation when going up the huge hill, you simply hear some sirens, turn a small corner, and then you get to the magnets and shoot up.
In high school we had physics day where we'd go to Six Flags and solve problems pertaining to certain rides. It was so much fun!
This is especially interesting as I'm at Disney World right now
Actually, the magnetic brakes aren't enough to bring the train to a complete stop, so they do include some friction brakes after the magnetic brakes.
Can you please make a video on Quantum Wells and their applications in telecommunication.
I loved this episode and I loved the shirt.
Love roller coasters! Love this video :-)
It is good discussion, and in 3 second I subscribe!
Some rides i have been on just take the "train" up and then gravity does the rest of the job and by the time you get back where you start you will have lost all of the gravitational energy into air resistance as there is no brakes at the end of some
Yes
They also use magnets to launch the trains, not just for stopping
0:25 is kingda ka in six flags of new jersey, it launches you incredibly fast and you're already back from the ride in like 20 seconds
In the magnetic braking system, exactly where does heat get produced? In the metal fins? Or does the kinetic energy first get turned into electricity, then into a load such as resistors, where it changes to heat?
Some coasters also use electromagnetic launches
Thank you this helped me with my physics assignment!
So are you doing rap or explain?
This dude: *YES*
I've also seen ones that accelerate with rows of tires spinning in opposite directions on either side of the car. Yes, just like with hot wheels.
Enjoyed how most pics were from Top Thrill Dragster :3
True
I was disappointed that they left out that a linear induction motor can be used for launch like California Screamin'.
Millenium Force Thumbnail. I Rode it. Its fun, and very well explained, but that picture of Millenium Force after the launch explanation, but Millenium Force isn't a launch coaster.
*I love physics*
I love that shirt
Over here we have a roller coaster that's accelerated by a strong magnetic field (I think they use switching electromagnets like maglev), which makes the rollercoaster accelerate really fast at what feels like constant acceleration for two seconds or so, and it's easily the best part of the ride.
This just got me way more terrified about roller coasters. I think this is one of the few instances in which not knowing was better.
Kinda glad I took physics in high school to understand some of this, even though I despise physics
Hey SciShow - Linear Induction Motors.... Look it up, quite neat... cough chough, railguns, cough, disneyland, cough, california screamin, cough...
Anyone else notice the pic they used to show skid brakes is the Thunderbolt at Kennywood?
This video would have been great when I did my physics assignment on theme park physics!
I feel that this episode could be 20-30 minutes. There is a lot more to this. :-)
That last bit is slightly wrong.. lenz's law can never stop an object.. it slows it enough to allow friction between the track and wheels to stop it..
Baby, life with me is a like a roller coaster
It's got weight restriction
I am so proud of you for not saying that you don't fall out of a vertical loop in a roller coaster because of the forces. That explanation for loops fails to explain why you don't fall out of any other element.
Nice video
I don't understand the magnetic breaks. I understand they attract the metal from the train, but how do you get to move in a circular motion,and what is lenzes motion.
The first 14 seconds is just pointless and patronising. Stop it, you do this too often these days.
Rollercoasters are meant to be terrifying!
It's a script writer go-to when they have a hard time starting the script and building up to introducing the subject. You can't just start talking abruptly, but this way of doing it is wrong as well.
I have no idea who started that old trend, but it plaged the news media for ages man, before the internet was a thing. Scishow did not invent this stupid regime. But I sure damn wish they'll find a better way to start a subject than acting like they are teaching an infant.
I don't need to imagine it! I'm in one right noaaaAAAAAAAAHHHHWWWW!~
Hopefully he/she was on the upside down part of a loop and was able to catch the phone afterwards
Nice explanation on hydraulic catapults, but no love for LIM's?
can u make a video of why we use speacial type of shoes on ice skating? why dont we use normal shoes they would be more safe?
I have this problem in my physics class. A 100 kg roller coaster begins on a 10 m tall hill with an initial velocity of 0m/s and travels down before traveling up a second hill. As the coaster moves from its initial height to its lowest position, 170J of energy is transformed into thermal energy by friction. In order for the roller coaster to safely travel over the second hill, it must be moving at a velocity of 4.6m/s or less at the top of the second hill. If the roller coaster Transforms another 100J to thermal energy on the upward trip to the second hill, what is the maximum height the second hill can be? What is the minimum height? How fast is the roller coaster going at the bottom of the first hill? If anyone could help me solve this, or even point me in the right direction then that would be greatly appreciated.
1:45 You're not technically in free fall, since air resistance and other various forces are still acting upon your body.
He's shirt is dope....😂😂😂
this really was just about kingda ka or top thrill dragster which is what? two or three roller coasters that do this? I wanna know the physics of why they can seemingly loop and loop forever even after it seems like it slowed down too much to do another loop
Would it be wrong to think of the Eddy currents almost like magnetic friction ?
Great and interesting video!
Could you please also do an episode about the heart line and the shape of loopings. Thx
I love the shirt
"Hydraulic Accumulator" sounds like something you'd hear on Pheneous and Ferb.
You're lying about magnets. ICP told me that.
Damn i though i learned fuck all from a level physics, but i understood every second of this video and was even finishing your sentences
I thought you were about to explain how it advances, how the wheels interact with the rail. I meani it's not like the usual train wheel right? Or is it?
The green roller coaster (king da ka) is actually a huge railgun I think
No, it's a hydraulic launch. The Batman & Robin Chiller coaster that used to be at the same park did use LIM's to launch, however.
Liquids are compressible. However, the effects are negligible at those pressures.