In case it helps clear up any confusion, here is a video I made that goes over the mathematical derivation of the Coriolis Effect and how it appears when you have a rotating reference frame ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-uTabQKD2WMs.html. In addition, here are all the Flight Mechanics videos in a single playlist ru-vid.com/group/PLxdnSsBqCrrEx3A6W94sQGClk6Q4YCg-h. You can support this channel via Patreon at www.patreon.com/christopherwlum. Please let me know what you think in the comments. Thanks for watching!
Can you please explain the formation of cyclones in inertial frame of reference. How would it form if things go in straight line in inertial frame of reference.
Christopher the LIAR.. KEEP regurgitating LIES to yourself FOOL… Is it the plane moving in the air or the earth below? Any 2yr. old KNOWS it’s the plane.. Just how ignorant are you? Read & you’ll know just how ridiculous you sound spewing nonsense.. What a mor-on you are.. LIAR LIAR face diaper on Fire😂 Could you ask ANY US Naval Admiral, any Seamen or any passengers if they’ve ever seen or Filmed any Aircraft Carrier, Warship, boat, canoe, rowboat or even a life raft ever go up over or down any imaginary curvature in ANY Sea 😂 This is what you beLIEve and regurgitate 🤮🤮Could you ask any Air force pilot, Commercial pilot, any pilot or passengers if they’ve ever seen OR Filmed curvature of any land, sea, ice OR ANY of the 100s of 1000s of daily sea going vessels go up over or down any imaginary curvature 🤣This is what you beLIEve and regurgitate 🤣Could you ask ANY of them if they’ve ever seen OR filmed the earth spinning under ANY plane over 1000mph on a 23.4° axis🤣 This is what you beLIEve and regurgitate .. Could you ask ANY Train Conductor or passengers if they’ve ever heard of OR have on FILM any train tracks that go up & down mountains.. This is what you beLIEve and regurgitate 🤣Could you ask ANY Subway Conductor or passengers if they’d ever heard OR Filmed any subway going up & down hills underground.., This is what you beLIEve and regurgitate 😂These are just a few of the ridiculous LIES you beLIEve, BUT you have no proof, not even one VIDEO to prove your delusions you Clown🤡 Why is that? Because you’re LIES don’t exist! But you keep LYING to yourself like an ignorant child beLIEving they do🤣🤡 Don’t you even know a Spherical shape means like a BASKETBALL , TENNIS BALL, BOWLING BALL, SOFT OR HARD BALL, MARBALL, etc.etc. ANY BALL SHAPE?? It means the earth MUST have immediately DOWNWARD Curvature in ALL directions around you✅ This is a scientific FACT! BUT it doesn’t curve at ALL, because there is NO curvature TROLL… Are you smart enough to know that? So just how stupid are you? No where on this earth does the ground drop aka curve downward in ALL directions around you as it MUST to be Spherical dumb dumb.. WoW, are you an ignorant halfwit🤣 You’re just a indoctrinated regurgitating LIAR, who’s never traveled ACROSS this earth but sit in your diarrhea filled diapers down in your basement like a mindless baby😂😂 How pathetic you are.. It’s easy to tell you have absolutely No experience flying, driving, boating, hiking, ice skating, fishing, mountain climbing, playing sports, building anything, etc. etc. especially TRAVEL! You prove you’ve never been in a plane because just looking down using your very OWN EYES proves there’s no curvature seen FOOL.. And anyone who’s past 2 years of age also KNOWS it’s the airplane moving NOT the earth spinning! Time 4U2 Shut up with your nonsense & educate your dumb azz.. Stop LYING to yourself And Travel👍👍 Have some self respect.. There’s only ELEVATIONAL differences on this earth with mountains hills and valleys at different Elevations ABOVE and BELOW Sea LEVEL.. But it’s still a Stationary, Flat & LEVEL surface… Ask a Pilot how & why they use an altimeter! It reads Sea LEVELS to keep them so many feet above the ground not curvature stupid! Then a Gyroscope keeps the plane flying LEVEL.. Ask any pilot if they fly LEVEL ACROSS a LEVEL Plain! They ALL radio the tower to say when they’ve LEVELED OFF… Airplane so named by the Wright Brothers because it is a Machine that flys in the AIR over a PLANE✅ STOP regurgitating and START investigating.. It’s time you educated yourself and have some self respect too! Time 4U2 GrowUp! Visit a shipping port or train terminal dumb dumb! Visit an airport, Runways don’t move & face in all directions... Sea LEVEL, Ground LEVEL, Horizon LEVEL and Eye LEVEL have been called that since man’s beginnings for a reason! Now go change your face diaper as yours is filled with the diarrhea you spew so freely like an indoctrinated IDIOT 😂😂😂 Stop lying to yourself about what this earth really is… It’s not a spinning scientifically impossiBALL sphere!
AA 516 : Great demonstration of Coriolis effect.It's so cool that you put so much effort to explain the subject to next level. The cyclone example is so satisfying.
AA 516: The way that you used visual examples to explain the Coriolis Effect in this video was one of the most informative and helpful demos I've seen. I really appreciate the time you put into making a resource like this!
Hi Anna, I'm a little confused, these videos are very old and should have been watched during the first part of the class. Why are you watching these now?
@@ChristopherLum Hi Professor, I did watch these when they were assigned in class but I realized recently that I didn't comment when I was actually watching them. I am not sure how participation works but I thought I would nevertheless look back and provide some of the thoughts I had while watching these videos. Thanks!
AA 516: This was actually a really helpful explanation for the Coriolis effect, especially having the overhead drone shot with matching rotation rate. While I've seen the Coriolis effect explained before, I felt like this built a really solid intuition for how it affects large scale changes in the Earth's weather or long distance projectiles.
AA 516: The view of both reference frame really helped building an intuition for Coriolis effect. The trajectory arrows are really useful as well for visualization as well. Thank you for the great video!
AE512: You know, we spend so much time deriving these equation on pieces of paper, sometimes its hard to really know the implications of our work behind the math. Videos like this are excellent breaths of fresh air, reminding us how cool all our work can be! Thanks so much for making this and the rest of your set!
AA 516: Thank you for the great video. The video reference in both the rotating and non-rotating frames definitely helped to reveal the conversion of trajectories between frames. Some videos or demonstrations only show one reference frame, such as the rotating and just denote a Coriolis force that acts in the reference frame and causes trajectory deflection, but that doesn't provide much intuition on the connection between trajectories in different frames as this video did.
AA516: Forgot to comment on this when I watched it the first time but the demonstration of the coriolis effects really helped me understand beyond just the concept on what is physically occuring
AA516: The best explanation of the Coriolis effect that I have seen. Only thing is that it did take me a while to wrap my head around the cyclone example. If possible for next time could you include an instance with the throwers pov, rotating and non rotating reference frames? Thanks!
AE 512 spring 2024: Awesome video! Really all your videos are great. This video in particular helps adjust our intuition when solving these problems. It'd be interesting to see the paths of the objects if the merry-go-round was accelerating, but I'm guessing this may be too much for the participants.
Young man excellent presentation excellent preparation to teach a Coriolis effect. This video is a bit older and maybe you’re not even checking comments anymore but if so, just wanted to point out excellent job. I’m familiar with the Coriolis effect but only about a year and just started looking into it so there’s gonna be people all the time they’re gonna wanna know a little bit more. again thank you.
Hi REM, Thanks for the kind words, I'm glad you enjoyed the video. If you find these videos helpful, I hope you'll consider supporting the channel via Patreon at www.patreon.com/christopherwlum or via the 'Thanks' button underneath the video. Given your interest in this topic, I'd love to have you a as a Patron as I'm able to talk/interact personally with all Patrons. I can also answer any questions, provide code, notes, downloads, etc. on Patreon. Thanks for watching! -Chris
What an amazing effort to explain this simply. I sort of remember omega cross omega cross r from engineering class...but never really thought about this being a perceived force.
Not really an accurate description of earths Coriolis at all. Most people think that if you threw a ball north from the equator, the earth would spin underneath it and it would land in back of what would otherwise be a straight line. This is not true at all, what happens is the the equator of the globe is spinning fastest and slows down as you go north or south, though all points rotate once in 24 hours, due to the shape of the sphere. This means that the conserved momentum would cause the ball to land in front of straight line drawn to the North Pole. Weird, but that's how it works. It has to do with conserved momentum and how far a certain spot on the earth has to go to spin once in 24 hours. This video does not show that at all.
Its literally the same effect shown in the video. The outside of a merry go round is traveling faster than the center. As the ball travels in a straight line, it follows a curved path over the merry go round (which represents the surface of Earth). Think of the merry go round as a cross-section of the Earth representing all latitudes at once.
Enjoyed your video but had a few questions? Isn't the earth and the air above it rotating in lockstep? And if so, wouldn't this make the merry go round demonstration not comparable to the spinning earth. For example, when you lifted the drone and hovered it over the merry go round, it never drifted away because of the earth's rotation, but if you lifted the drone off a railroad boxcar traveling at 30 mph, it would not land back in the same place. To equate the merry go round Coriolis to what happens on earth, wouldn't all the conditions have to be the same? The air above the merry go round is not rotating in lockstep with the rotating platform.
Hi Christopher. I am an engineer and familiar with the concept of the Coriolis Effect for a long time. But your explanation is one of the best, clearest and simplest of them all. Kudos, very well done. Best regards.
_Really? An _*_engineer_*_ , AND _*_familiar_*_ with the concept of the _*_Coriolis Effect_*_ for a long time!_ _Seems you are _*_familiar_*_ with the _*_Brown Nosing Effect_*_ for a long time as well._
Nice, I see you're getting ahead of the game. If you want to proceed faster keep in mind that while we'll mostly be following the FlightMech series, we'll have occasional modules that are in other areas such as Matlab, Optimization, etc.
The merry go round rotates under the hovering drone, how come the rotating earth doesn't rotate under the drone at the equator where the earth rotates over 1500ft per second?
The frame at 7:05 nails it. All motions, for all directions in the CCW rotating frame, appear to bend to the right. The balls paths are not really curving but appear to curve. Now imagine any pendulum swinging in any plane in the Northern hemisphere. Every swing, although actually straight and true, will appear to curve to the right. There's your Foucault Pendulum!
What I got out of this is that you calculate how long your projectile will take to reach the target, then you calculate how far the target will have moved during that time, and you aim that far ahead.
Fascinating. And your set-up at the beginning with a fixed and a moving frame of reference touched in the principles of Relativity. Einstein would have been impressed. Have you thought of a lecture on General and Special Relativity? I’m sure you would make it very understandable.
Excellent discourse. Don't know if you had considered it, and maybe you did it and I missed it, but I would love to see you offer an analysis of how this would affect artificial gravity in a rotating space station.
Great video, one state to the east of Minnesota would be Wisconsin😮, not Michigan (except one point in Lake Superior). Keep up the good work; I subscribed!
AA516: Not only was this a great demonstration, but I grew up on this playground so it blows my mind to be learning physics with the same merry-go-round I used to play on as a kid! I am also curious as to how you were able to sync the rotation of the drone with the merry-go-round. Is there some type of feature on the drone to do that? Thank you for a great video!
excellant demo! FYI in WW2 a canadian pilot named "Buzz Brieling" explained to his superiors the importance of leading your shot when shooting down enemy aircraft
Why didn't you throw the ball straight up at the edge you only did it in the middle I think its more resistance from the created force its like spewing up on a roller coaster
Please help with a question: The canonical argument for earth's mantle is that the high viscosity precludes there being a significant coriolis effect on convective motions (Knopoff 1964, McKenzie 1969). But since these are pseudo-forces (ie relativistic effects) it seems unintuitive to do this scaling argument based on 'forces' (eg buoyancy vs viscosity) to conclude this. Please clarify the absolute velocity of the moving object (here a ball), its connection to the substrate(here none) and its speed relative to the rotation rate as factors determining the significance of the coriolis terms.. I wish to know what would happen if, say, instead of a ball, a highly viscous fluid (eg syrup) was allowed to flow down a slope parallel to the radius..? Would the flow be deflected and if so, what is the relevant physics? Thanks for great vid
Hi, First let me say thank you for your generous support of the channel, it is very much appreciated! Do you have any particular interests in terms of videos or topics? I try to prioritize request made by interested parties as much as possible as I plan future videos. If you are interested, I interact personally with all Patreon members at www.patreon.com/christopherwlum. Given your interest in the topic, I'd love to have you as a Patron. In any event, I want to again say thank you for your contribution and for supporting the channel. I hope to hear from you at a future RU-vid video or on Patreon! -Chris
The Coriolis effect is extremely small over short distances. It is what causes weather systems to rotate in the direction they do. But it does not affect small objects like drones or the direction of water going down a plug hole.
_"But it does not affect s... .... or the direction of water going down a plug hole."_ Yes it does Take a bucket with water and a video camera, record it 10 times in a row, get yourself on a plane to Aus /S Africa or Argentina, do the same experiment and educate yourself.
@@nonconformist4802 No it doesn't. The Coriolis effect is EXTREMELY weak. Water in a large (1m plus pan) needs to be extremely still i.e. left for days to settle and the dish would need to be 100% symmetrical for it to effectively show the effect....
@@PhilWare1 Just answer me on this please: 1) Did the opportunity ever came across your road to visit countries on both side of the Equator? 2) Please give me evidence for a siclone/hurricane or what ever you want to call it, that have past from the northern hemisphere to the south or vise versa. And if it did, or didn't, what can be the reason for that. After that I will maybe believe you, in the mean time go sell your BS to the gullible Flat earthers, maybe they will take it as gospel.
Lol as the drone hovers above not being effected by the spin of the earth 🤣..... The only way you can demonstrate this is by using a moving surface hahaha ... You don't need a merry go round if the earth is already spinning... Question ... Do airplanes have instruments that correct for this drift or do the pilots have to adjust manually?
@@rrrick2129 So the aircraft itself corrects for Coriolis drift 🤔.... According to the definition Coriolis its only visible to the observer on the ground... the plane doesn't drift the observers position makes the plane appear to drift. So planes helicopters drones cannot hover bc the earth would be drifting at 15° .... And flights from east to west get shorten by a least half the time due to the spin. Or Coriolis is fictitious....
@@rrrick2129 How can a plane correct for something that is only observed from the ground .... You said it yourself the plane is not drifting it only appears to be drifting from a non inertial reference frame! In no way can an instrument or pilot correct for something that isn't happening
@@rrrick2129 I should observe a drone drifting 15° as it hovers. But they don't drift they just hover. The heliocentric model claims anything not attached to the earth drifts 15° Coriolis the fictitious force that is only observed from the ground! Edit* The drone cannot account for something it doesn't experience. The drone is not drifting it should only appear to to drifting from my position on the ground.
What happens if you toss the ball up when you are on the outer edge of merry go round... try that... then you know the answer to the deep game question.
A physics instructor once implied to me that flat earth could be true assuming Eratosthenes and Archimedes were immortal archdemons messing with everyone with psychic illusions.
Cmon man, the earth has much stronger gravitational pull than the merrygoround. What is it about being a flat brainer sorry, flat earther, that makes you feel special? Were you not good at anything, and this was the only thing to make yourself stand out? Even at the price of being ridiculed? I hope you get well.
Because the air has the same velocity, which matches the earth's rotation. Due to the laws of momentum and energy, it won't just start spinning faster and faster and faster. That would mean an infinite source of energy, which is simply impossible, as energy can't be created from nothing and can't be eliminated. Only turned into another form of energy. In this case, kinetic energy. Edit: I am sorry, I misread the question. The reason we don't have extremely fast winds is due to relativity. The air may be moving with 1000 miles/hour, but so are we. If I were to shoot a basketball at you with 10 m/s a second, while you are moving at 9 m/s, the real impact would be the same as if the ball hit you with 1 m/s. I hope this answers your question.
check the soles of your shoes .. your right sole will wear out before your left because all free moving bodies in the northern hemisphere tend to veer to the right, to correct this 'veer-to-the-right' the right shoe will wear out first
