What Happens If You Fly a Drone In An Elevator? Real Experiment!
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- Опубликовано: 13 янв 2019
- Get your Action Lab Box Now! www.theactionlab.com/
In this video I actually fly a drone in an elevator to see what happens when the elevator goes to a different floor. Will the drone move with it or stay in its relative position? Then I also try to actively control the drone in order to see if I can keep it in control as the elevator is moving to the top floor! Then I talk about relative speeds and how this compares to flying on an airplane!
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DISCLAIMER: Any experiment you try is at your own risk 
Развлечения
Hey everyone I want to address some comments I am seeing:
1. Remember that the drone is not floating in the elevator. It is not supported by air pressure or buoyancy. So even though the air starts moving down with the elevator, the drone doesn't care because the air isn't what is supporting the drone. It stays in place by the momentum of air thrown downward. So it doesn't matter that the air below it is moving downward relatively slowly or not, the drone will stay where it was hovering before the movement of the elevator. The results of this would be different with a balanced floating balloon in the center of the elevator. It would stay right with it for the most part as the elevator went up and down.
2. The drone does have vertical accelerometers. That is how it knows it is hovering with the correct propeller speed without falling. So even once the elevator air starts pushing the drone up or down while moving, the accelerometers try to keep it in place. So in addition to its inertia, the accelerometers are also keeping it in place. I didn't mention it in the video but it is a valid point to bring up. The drone would have an easier time staying with the elevator without altitude control (but that is basically what I simulated when I was throttling it).
I am pretty sure a small drone like that does not have barometer on it. However it probably has an accelerometer (and definitely a gyro), and it would be calibrated during boot and then be confused when you want to maintain a constant velocity (offset in the integral of the acceleration).
Great video, thanks! :) What is the name of that drone model?
WOW amazing !
Try the drone in a 0G airplane
The more interesting experiment would be an altitude hold based on the floor of the elevator.
My 2 year old son has a cheap toy that holds altitude based on a sensor on the bottom of the drone.
You should try one of those.
This guy is answering my 3AM questions one by one so I can sleep in the future
😂😂
You'll just watch these at 3AM. Back to square one.
Is it inertia that's making it happen or is it the gravity field?
But with every new question at 3am, that future will just keep getting pushed
@@pffftnames9047 exactly
The security guard monitoring that building’s cameras was laughing. I guarantee it.
I saw he didn't laugh, just made a ridiculing face and said "STUUUPID~"
Now give me the compensation for that guarantee
Plot twist: you are actually the security guard
@@MuhtamAmalana lol
@@maswizzle5735 nerd
@@maswizzle5735 🤓
Interesting experiment! I'm curious if the DJI Phantom's object avoidance will activate faster before it hits the ceiling of the elevator!
It better had or it wouldn't be much use in normal environments
Easy enough to turn off obstacle avoidance.
I want an "Action Lab - Behind the scenes" channel featuring all the conversations with people who used the elevator while you were creating this video.
🚇🚇🚈🚈🚉🚉
🚛🚚⛴️🛳
🚇🚈🚉
"It went up."
Drone: "No. You went down."
The good relativity
Hate him or love him, the drone be spittin faccs
...bbbbut! If you took a helium party type balloon in the elevator - then having it float at the ceiling of the elevator and making the elevator go down...the balloon would move towards the floor!
Can you figure out why?!?!
@@jarls5890 the elevator (or lift) is faster than the baloon
@@eseopu Incorrect. It got noting to do with the speed.
Again - the helium balloon is floating up against the ceiling of the elevator.
You press the elevator buttons so it goes down.
Intuition tells us that the balloon would just be sitting against the ceiling not moving much at all.
But it goes down! In fact if the elevator rides is long enough (remember - the elevator is going DOWN) - the helium balloon will sit on the floor!
Same effect - take a helium balloon into your car. Let it float up against the ceiling in the middle of the car.
Now step on the accelerator hard. Everything is pushed back -including you.
But the balloon goes forward...why?
Now i can sleep in peace
Same
Same
Different
But.. what if i fly a drone inside a moving car? I don't need sleep i need answers!
Me 2
What I would like to see is what would happen if you started the drone after the elevator had already started moving, such that the drone had the same momentum as the elevator. It seems to me that it should be the same as flying a drone in a vehicle traveling at a constant velocity. It might be an easier experiment if you were in a taller building so that you had more time to start the drone and run the test while the elevator was moving. Of course, it would be necessary to run the experiment at a time that few if any other people wanted to use the elevator. I have a feeling that this video was shot after business hours.
Einstein (and me) assert that your suspicion is definitely correct.
@@Rick_Cavallaromy dogs name is also Einstein.
@@RobertSanz1 If that doesn't settle it, nothing will. :)
It’s the acceleration
The problem is the vertical movement. You can imagine it like this: If the elevator were to go down faster than you would in free fall, the drone would be constantly stuck to the ceiling even with zero upwards thrust.
You should repeat this experiment in a glass elevator so you can see it stay relative to the outside structures. Loved it!
GOOD IDEA
THATS PROBABLY OYT OF HIS BUDGET
Someone is gonna use this video trying to prove the earth is flat.
And it might hold water too,except that the elevator is accelerating and decelerating.hence the differences in inertia...whilst the earth's spin is constant..although,when you think about the other motions of the planet in the accepted model......The orbiting speed of the earth and tightening of change of direction at orbit ellipse poles,and the sun's orbiting speed of the galaxy,also elliptical,as any orbit,not to mention the galaxy's speed through the universe.... I mean,there is room for such arguments.The model we're given seems......contradictory..Just saying
Hahhahahja I was thinking just the same
That's exactly what I thought. But flying a drone in a plane (aeroplane) would go against their argument. But hey.. when has logic ever stopped a flattard
Inertia and shit,right?
I have absolutely no idea why that would be the case?
Wow the drone on the thumbnail is a bit bigger, just a little bit. Lmfao
Same thought
a bit more 💵💵 too
The elevator seems a little more metallic too 🤔
Yeah maybe just 3-5x bigger not too mich
And the elevator is different as well and the location too
I like how this guy takes a random questions and do it as an experiment and give explanations for it, so cool!
It's depending on which sensor the drone is reading it's position. Acceleration can be measured, Air Pressure, others use the camera for fine adjustment (Phantom), and/or GPS. So in case of the plane, the drone might want to reposition to it's GPS position, which might geht hard on any plane.
There must be a cap on the GPS correction. "Whoops, lost my place, let me do a 1500 foot adjustment"
Yes
I just pressed reply
Nah i prefer get cursed 🙄
Your curse don't give any effect
@deadly cupcakes same
Carlex 545 your so unoriginal
I’ve never wondered, but now I can’t stop wondering
That’s what happened to Einstein. A box with an object in it with and without a gravity center is one of the thought experiment that drove him to develop general relativity. And it was a physicist challenging him to prove it using math that created the theory.
@@valorienapoletana4063 cool fact. I just read about the thing, but what does "A box with an object in it with and without a gravity center" mean?
@@ploopybear The gravity force exerted by outside objects. For example, in this experiment, the earths gravity. The absence would be a theoretical box with an object within and nothing else whatsoever. So far as we test it, the acceleration force of the box impacts the object within, always. In other words, it shows that acceleration is gravity as far as the object inside and the box are concerned. And it holds true even if you add a gravity source outside of the box. Hope that clarifies.
@@valorienapoletana4063 ah ty
@@valorienapoletana4063 Thanks
appreciate it.
I wanna try this on my Mini 2! I'm just not sure if I'll be able to have the elevator all by myself! lol
I think this is more of a software solution than any physics issue. Software can be designed to tell the drone to stay Xft off the floor and maintain that vs just hover mode regardless of floor or ceiling changes. Thanks for doing this thought experiment.
Imagine walking into an elevator and seeing this setup right in front of your face
Justin Y.
FIRST REPLY
Can't you go to sleep ?
@@safir2241 y'all got no life
YOU
ARE
Guards watching the security footage: *NOTED*
*NOT ED* *NO TED*
Checking to make sure he's not breaking any physical laws.
I always wondered how air molecules/particles move around in a moving cabin. Vertically or horizontally. Seems like the air would be effectively thinner on one side, especially during acceleration.
it is, but air is under great pressure and air molecules move really fast compared to elevators.
I totally thought it would stay in place. Just shows when you think too technical you get things wrongs. Made so much sense once you explained it.
1:00 “this lil drone is cool” *turns on* “it can do tricks...........hehe”
k?
Thanks for repeating that to us
Yup, that sure is what happened at that point in the video.
@Akhenaton cereal?
this guy does the experiments nobody would ever think of, which is why he is so fun to watch.
I did think of it except I was thinking of trains while he thought of elevators.
I think about these kinds of things all the time
He is doing experiments that everyone thinks of but no one cares enough to take the time and just continue to wonder.
I did think of it, but then a fly in a car :)
or maybe people think about it but don't do the work to do it
Yep! The Phantom drone's too tough it might prolly destroy the elevator before it gets destroyed by it! 😆
This actually makes for an interesting reversal of one of Einstein’s thought experiments regarding gravity. Instead of a man falling alongside the box (as the inertial reference frame) and the world outside moving, the drone and the world outside stay the same, and it is the box that moves. Either way it demonstrates that the acceleration of reference frames can create the illusion of force when none is being directly applied
It's interesting.I would like to know How does that apply on us? If I jump from a building what frame moves upward which makes me go to the ground. I have seen couple of videos which are not making sense to me right now. They kind of say that (hypothetically/theroritically) earth is accelerating at rate of 9.8m /s2 outwards. Making me fall inwards.(lift) is continuously going up making us fall every given moment. I will send the 2 videos after this comment. Share your thoughts. @Michael B
Just so you're aware, your thought is not a reversal of Einstein's thought experiment (that led to the equivalence principle), it's _part_ of it.
Kid : Mommy there's a fully grown man playing with his drone in the elevator.
Mom : Let's just find another elevator. He might be a weirdo.
Cahidi Joyo Raharjo underrated comment
How is that funny
@@jasonalwaysmerks5363 It's not supposed to be funny, it's one of the many reactions if someone were to find him going up and down the elevator with a drone inside.
...
*_might_*
The drone is a paid actor
Yeah its i actor
Off craigslist I found him
The elevator is a paid actor. Idiots these days.
Earth is flat?
Lol
Oh, how well I remember that Aerosmith song. "Drone in an elevator, rising on up, when we're going down"
You should try starting with the Drone on the floor wait till the elevator is moving then lift the drone off the floor and see if it stays hovering?
2:50 "I can't keep it up even all the way throttled"
Yeah I have that problem sometimes.
They have pills for that now.
just stop beatin yer pecker bud
69 likes
Happens to the best of us
I think it's had enough masterbateing, you gotta get a real girlfriend bud.
I'm sure your soul mate is out there
Don't worry, anyone can get a gf, even a geeky railfan like me manages to have one
There is that one dude on the the 5th floor that is sitting there waiting for the elevator to come by down but this dudes playing with a drone
🤣 🤣 🤣
If so, elevator will go to 5th after 7th and 6th and not up again
It's actually called an EVALUATOR
@@samueljackson856 cool and I don't give a dam
I really like this guy, he's answered so many questions I get in the rare times I don't have a computer to adk.
You know the feeling you get when he elevator goes up or down, I wonder if that is something that is effecting the drone, but for some reason the drone has issues keeping level. Its also interesting that the drone actually does what it does instead of just sitting in the middle of the box as it rises.
Nifty experiment.
I have tested this and can confirm it is very awkward when someone tries to walk into the elevator while I try flying a drone.
😂😂😂
indeed very true
I was the 100th like
@@valentinoberchu7532 i was 200th
I love the fact that you make videos on such topics
This guy comes up with the most original experiments since the prime of Mythbusters.
I love the fact that i had this kinda idea but with a car
dumb topics imo
@@user-yp6kk9lx7k true
I suggested this video in the comments of the unmix liquids video.
Great video. It's pretty much what I expected might happen, it was interesting to see you actually trying this out.
Great video experiment! It reminds me of that old thought experiment about the guy with a truck hauling chickens, though admittedly that thought experiment is often used to illustrate a different point. It's always a fun exercise to break down these kinds of questions/thought experiments by comparing how things look to different observers in different frames of reference. For example in this video, comparing the frame of reference of the human drone pilot, that of the drone, and that of an external observer with super x-ray vision standing on top of the building who can see everything thats going on in the system, (while not affecting said system). Einstein's theory of relativity says these reference frames are essentially all interchangeable and all valid, so I find that fun to think about. I would love it if you made a video with this footage and some of your other drone experiments, where you break it down "on a chalkboard," so to speak, walking viewers through the different reference frames, and how in some ways they may all appear "different" and yet they are "the same." Basically run us through these experiments and reference frames, helping viewers grasp the crux of what "relativity" is all about. When people hear the term "Relativity," I think they too often think of things like, E=MC2 and speed(limit) of light, curvature of space time, and other higher level concepts. But we need to remember that Relativity is also very much what it's name implies, basically that how a system or situation appear to an observer, is very much dependent on that observers frame of reference. Thanks for making these videos that help us think about all this good stuff. You encourage me to keep asking questions and learning, always.
*_GARAGE IS SLIPPERY WHEN WET_*
Yeah. Its wet. What you expect?
@@rumahhafidzahbekasi1354 Schweppes
@@fabianvanderelst9643 wut?
@@rumahhafidzahbekasi1354 "What did you expect?" well, I say Schweppes haha 😂
@@fabianvanderelst9643 now i get it.
This is nothing. In North Korea we fly an elevator inside an elevator - now thats something.
wait I thought people were banned from having phones, and there is no wifi, how did you get to youtube lol my brain is confused.
You gonna eat that?
@@bibzy4286 you know kim jong un has his internet privilages right?
@TikTok vs Anime North Korea has a RUclips channel I believe. They do videos about daily life which is pretty decent I guess? But not sure if they’re hiding something.
@@MikhaelAhava I think the channel is called "Echo of Truth" and it's just propaganda that's created by the North Korean government to tell us outsiders that they're doing fine when they're litteraly violating human rights like it's a normal tuesday.
Been wondering about things such as this for years. Such as, flies that keep constant with a moving train
in order for a drone to stay centered in a elevator, we would more then likely need some type of sensor for it to detect the movement of the elevator.
"I can't keep it up" - The Action Lab 2019
oh god im only 13 why do i know this joke
@@CrythmX kid you should know that things here in the internet are not kid friendly. Also, why am I calling you a kid, I am only a year older than you. Gosh do I feel old
@@rudrasingh6354 you don't really look that old no offense tho
Rudra Singh you look like you're 10
Get your minds out of the gutter, kids. It's clearly a Flappy Bird joke.
So if you’re in a submarine and you wanna know if you’re sinking, fly a drone👍😂
or in a plane and want to know if you're crashing.
Not a bad idea 😂
Flies a drone*:
Yup, we crashing, aaaaaa
Fun fact: This principle is why accelerometers work.
@@MrT3odor No, cause in that case the drone is already moving at the same speed as the airplane so you won’t notice
Interesting! Isn't the air in the elevator staying somewhat fixed? Is it a portion escaping and another portion of air entering into the elevator?
I actually wondered what would happen if this happened, pretty cool.
*2:06* Put captions on
(edit) Oh yeah yeah
Now that image is burnt to my brain. Thanks a lot.
Tits down on the floor
Lmao
Escapes_And_Removes.exe has stopped working
Reason: MY MIND IS BLOWN
Lol
always wondered about this. also wondered about what would happen if a drone were to fly inside a moving car
*You have gave me the answers for my questions that I always think
Thank you ❇️
That is actually a good way to measure the speed of the elevator.
Haha yeah
Exactly what I thought lol
How'd you do it?
@@KyleFran doing it
@@GDChris100 oh okay, I get it now. Thank you for the extra knowledge.
This is an experiment that I’ve always wanted to try. My thought was to try it on a bus. Launch the drone while the bus is at a bus stop and observe the hovering drone as the bus left the stop and accelerated to see if the drone, independent of the movement of the bus, would remain fixed at it’s own point in space. Your experiment was fascinating! Thanks so much for performing it!
Picture this, you've got your $3000 drone on a stationary airplane. You launch it, the plane starts to taxi, because of your advanced drone pilot skills you're able to stop it from crashing for a minutes as the plane slowly speeds up and changes direction. The plane stops momentarily and then launches into a takeoff run, hitting 300kph and rushing towards the end of the runway, you blink from the shock and hear a terrible noise as your drone is smashed to pieces at the rear of the cabin a second later.
🚈🚇🚉
🚈🚇🚉🚑
I never actually thought of this,this is so interesting!
You won't believe I was thinking about that for a long time.
Now, finally I got my answer.
The elderly people living on the top floor waiting for elevator be like: *am I a joke to you?*
Edit: thx for all those likes
There's no time for old people! We've got science to do!
XD
Abhinav Diwakar lmol!
wait! (as per the original meme) are the elders tainted black? by mother nature or just by anger against the experiment?
Dinginess, you commented on a king of random video talking to me a few days ago.
If the elevator was hermetically sealed, so the air wouldn't escape, would the drone be affected by the movement as well?
More upvotes plz.
I need to know
im guessing yes though
Sealing the system would have a negligible effect. Also, not much air is escaping anyway, otherwise you would feel or hear rushing air when you're in a lift.
Yes of course it will
Yep, since the air isn't what's keeping the drone flying, but by the force produced by the propellers acting upon the air
A balloon with neutral buoyancy should be different though
On second thought, the balloon might need to be of negligible mass to remain stationary relative to the elevator. Should it have some mass, however, it'll likely behave similar to the drone, with less pronouced effect.
Unexpected for me lol, I thought it would float with the air. Thx for yet another very interesting video.
This has been one of the most intriguing videos that I've ever watched, because the drone is pushing off the air in the elevator, but yet it's still tossed like a rag doll because the frame of reference is king above all other physics.
The force of the drones mass reaches the floor of the elevator regardless of whether it's flying or resting. The elevator always weighs the same, no matter what the contents of it do
1:59 when you are found playing with a drone in an elevator
Drawing Bad the awkwardness
The dude is like " nope I'll take the stairs "
Casey Neistat wants to know your location
😂🔥
"Now Ben Shapiro wants to know my location"
Hears knock on door... Casey Neistat open up!
@@strangeclouds7 opens up
@@chirppp5 Bush shows up, "can I bring my planes for the elevator test?"
Every one of these I see make me want to buy the stuff to show my friends kids next time we go camping! Though this one it'd be hard to pack my own elevator.
To this day it is rumored he can't keep it up; even all the way throttled.
Awesome experiment thanks for sharing!
“Don’t mind me, I’m just filming in an elevator. Do come in, nothing weird going on here. Wanna see my drone? Some candy maybe?”
Me : He is going to crash and break his drone in the elevator
He : I may destroy the elevator....0:46
*He may*
Learn how to timestamp
0:44
Isn't it more about the acceleration?
Everything inside the elevator acts as a closed system, but it's suddenly acting in a >1g system.
Youre able to control the drone better when the elevator has reached it's top speed, so it's not about the elevator moving up, it's about it going from 0 to X
This guy is the reason why I know so much about science, I definitely need to buy his experiment book sometime.
Do: What would happen if you put snow in a vacuum chamber?
ruclips.net/video/G6XrAtp9WvM/видео.html
A process called sublimation, where frozen water goes directly to a vapor
no air for the drone to push on so nothing so no point in a vacuum
@@chrisvandijk99 did you even read what op said?
@@rewsnAeh 😂
If you keep Thor's hammer in an elevator it would still go up and the elevator is not worthy.
- Tony stark
Wtf i never thought that
🙄🙄🙄🙄
Actually thor's hammer is so heavy that the elevator wouldnt go up
Chris Hill kind of answered this question on his channel because science... It's a little different as his question dealt with Thor's hammer in space.
Actually it would be worthy because it has no bad intentions as it is not living so I could in theory lift the hammer.
question: when the lift is created by the propellers, are the air particles "compressed" (for the lack of a better word) to the ground or just moved around in the surrounding air? I was thinking before the testing that it would stay in place relative to the elevator because the air particles would be limited by the area of the elevator
Would be interesting how the phantoms sensors react to the moving elevator by obstacle avoidance
For a further video
Note to self: during the machine apocalypse when needing to take out the drone attackers put them in an elevator.
John Nada: Hey there little fella. Follow me in this elevator.
Would be interesting to see what happens when you start flying the drone whilst the elevator already has accelerated
It would act normal I think
That can also confirm his answer about airplane,he should do it
He didn't do this because it would have debunked his hypothesis. I would like to see this experiment done on a subway car.
If it's going upward it would experience Reaction = mass ( acceleration + acceleration due to gravity) . So it would be probably hard for drone to go up.
@@billkeithchannel It is not a hypothesis, but a fact. And no, it would not have been debunked. Get some science. .By the way, he already tested this by flying a drone inside a moving car: ruclips.net/video/XjTj-tGPSWE/видео.html
I have been wondering about this from the moment I saw the thumbnail to this video moments ago !
This guy made a good entertainment video. Because a lot of questions we always ask in our head, but we didn't do it. But this guy do it. Thanks man. ✌🏻✌🏻✌🏻
Random elevator user walks in “this is awkward”
Knowtorious, yes
I don’t sorry
"I can't keep it up even when it's all the way throttled."
You and me both, buddy.
You know they have pills for that now; little blue ones. 😁
That was going to be my reply...you reply theif you.
P
@@RandomPerson-hd6wr P
@@Julia-fc4mp but i wanna know what the matrix is
I saw this in my recommended and I thought "well it's pretty obvious what would happen there... but, if he made the video, there must be something counterintuitive that happens" so I clicked it. To my surprise, what was counterintuitive was having the results be exactly what one would expect it to be haha.
I think this is more about inertia. If the elevator + air was moving at a constant velocity, the drone wouldn't appear to move. But it's the ACCELERATION of the elevator that causes the drone to go up. The drone has more mass than the surrounding air so while the air goes down with the elevator almost instantly, the drone takes longer to accelerate.
*"The garage is slippery when wet"*
Hmm, yes. The floor here is made out of floor...
r/sixtysecondsinafrica
Not all floors are slippery when wet, also, it's to prevent lawsuits.
Comedy in this comment section: *Ight Imma head out*
@@deadsoldiertr Well, it's a crappy joke when nobody knows it's a joke... you can't just say a sarcastic comment as though it's literal and expect people to understand, a JOKE has to, first, be funny, but also, have some sort of punchline, pun, or double entendra to it.
@@seanld444 Umm, Never heard of that..... 🤷🤷
Start at 1:22
That's a record
@Jerry Gonzales dude the comment was supposed to be a joke about this type of comment. I didn't double checked
Thank you so much
@Jerry Gonzales?
@Jerry Gonzales I don't think you got it
Oh yeah yeah
i'm learning so much spanish with these subtitles! and some neat physics stuff!
No I have never wondered what if you flown a drone in a elevator but now you answered that question
The action lab back at it again with the interesting video topics. Nice job dude, love your channel
Actually the same thing happens on the ISS. Every now and then they have to use small thrusters to keep it in it's correct orbit. During that burn, astronauts actually slowly get pushed against the wall, because of the increase in velocity. Thank you for sharing this video!!
But everything NASA tells us is fake, they tell us that if you shoot a gun, the bullet leaves earths rotataion and it goes on an angle but we don’t see it because it goes so fast, that makes no sense because if then if you throw a ball in the air, it should fly to the side. It’s called the coriollis effect and it has never been proven to exist, in fact every single experiment fails to prove earths rotation
this is the same reason you get pushed back into your seat when you accelerate a car, but not at all when you drive at a constant speed. Thought this was common sense. g-forces
@@LucidDreamn your profile name is a girl in my English book lol
@@LucidDreamn ah guys, it's not G forces. Not always, It's Inertia!!!
@@DARK_AMBIGUOUS You know the sun exists right? Like thats why we only see it for some amount of the day right???? Also tell me what disproves that the Earth is spinning
The experiment could be complimented by measuring and showing current draw of the drone. Then, we could see how much more power the drone is using in each of these stages. And, we could see how much more force is exerted/needed for the drone to be in balance when elevator is moving up/down.
نه
Just to point out. It only stayed flying due to the ground effect. You can clearly see it is not enough throttle to stay at the same speed as the elevator. But since it approaches the floor slower than the first time it has time enough to be affected by ground effect and stays airborne just by an inch.
Great video
If you kick a soccer (foot) ball in space, will it continue to move forever since there is no net force to stop the motion?
J T.V Theoretically yes but there is gravity everywhere so h would have to find the perfect path to kick it where there is no gravitational pull in the way
Dopeness which is impossible
It would also be possible that the soccer ball accelerates to more than supersonic
GOOOOOL!
Philipp W true
so did anyone walk in while you were doing this?
You're asking the REAL questions 😁
Yeah, John cena walked in. Didn't u notice. Oh, never mind
Spider-Man went in and the feeling was worse than before.
1:58 -_- good job.
Momma O No, Mom.
The amount of air pushed by an elevator would depend on the size. Most elevators go about 1M/s, however this is a mid range application so maybe 2M/s. The amount of air pushed would be tiny, especially in the middle of the elevator.
Awesome demonstration of the fictitious forces in accelerating inertial frames
You should have launched the drone while the elevator was at a constant up/down motion to prove your point.
Exactly. I can't believe he missed that chance
Yeah you right
Preetty sure elevators don't move at constant speeds between a couple of floors. Acceleration and deceleration can't be instant you know
@@mursuhillo242 you're suggesting that the equipment used was insufficient, deeming his conclusion just as speculative as a hypothesis. Meaning that this video is a waste of everyone's time, or rather just an excuse for this "scientist" to buy a drone and make another $ from a video.
This experiment is flawed as the drone he used has altitude hold.
I tried it myself with a manual drone and other than the slight disturbances during the elevator's acceleration and deceleration due to inertia, the drone was completely unaffected.
Does the air in the elevator sink/rise? Why isn’t the air moving at the same speed of the elevator? Is it not all connected?
Yah like in a plane why is the air moving the same speed and isnt the plane also suddenly excelerating like my head man
Once the plane is up to speed, yes. at takeoff and landing, air moves much like a fish tank being shoved around.
Modern elevators tend to move fast enough and through shorter distances to not reach a constant rate.
When accelerating upward the air in the elevator would get slightly compressed toward the floor and slightly compressed toward the ceiling when accelerating downward. That hat effect would be minimal on the drone.
The main reason for the drone's movement is its inertia. When the elevator starts moving it tries to stay in the same spot, so ends up hitting the floor as the elevator accelerates upward, and hits the ceiling as the elevator accelerates downward.
You would be able to hover it easily if the elevator had a longer travel time at a constant speed in either direction.
Thank you for asking this question. And thank you to those of you who answered. I was wondering the same thing. He explains it in the video too but you all simplified it a bit! Thank you!
I really like your videos and the scientific mind with which you approach these questions!!
Great video. You are putting some of my thoughts into experiments. I am loving it
What happens if you fly a drone in a bus who is moving?
Which*
OH YEAH YEAH
Bus is not who!
@Another Lazy Boy Which*
Same thing. It will hit the back of the bus.
@@throwaway5945 *that
This is the random content I like.
how am I not subscribed? I've been watching u for years and been subscribed since like 2018.. Also, yt now has a feature that when u say "hit the subscribe button" it circles the subscribe button. Pretty cool. But seriously, yt, never unsub me from this channel again l0l!
Okay so I always wondered if you were plunging to the ground in an elevator and you happen to step out right as it smashes into the ground does your momentum keep making you go down or will you be okay ?
For everyone wondering why the drone is moving and not staying still: The acceleration/ g-force makes the drone move when the elevator changes speed. If the drone would have been launched after the elevator had accelerated, and stopped before it deaccelerated, the drone would have had the same speed as the elevator and therefore not move. It’s similar to you getting pushed into the seat in a car if you accelerate fast, and get pushed forward when the car stops fast.
What U said is true , if lift is horizontally moving to earth.
But lift is moving against the earth, so even drone starts with lift. It connot be Still in lift as lift is moving up against gravitation force meaning lift requires continued force.
Or in plain simple words Newton's first law of motion
If it was true the the drone would have start flying along with the elevator as soon as it hit the ground or celing.
The drone is programed to move up/down up to a certain meter per second based on some kind of inertia sensor.
The drone can't move at higher speed than X m/s, the elevator move at a speed higher than X m/s
The drone crash at the ceiling if the elevator go down, and crash at the floor when it goes up.
Wrong, it’s because the drone doesn’t have GPS therefore not being able to hover precisely, hence the erratic movement
it would be interesting to do this in an airplane to see when the drone loses acceleration and starts to move due to the movement of the airplane
For me personally, this is the most helpful visualization of the theory of relativity that I've ever found. In the past, I kinda understood the whole "if you're walking forward on a plane then you're still not walking faster than the plane" thing, but for the most part I was still just taking people's word for it and then silently getting angry that I couldn't understand why it was true. This explanation of a vehicle that's starting to accelerate vs a vehicle that's already accelerated is particularly clear and helpful, and seeing the drone helped make it click a little more.
Ahh but that depends entirely on the frame of reference right? You’re still walking 3mph but compared to a point on the earth you’re moving 3 mph faster than the plane. Or did I mess this up too lol
@@monhi64 when you walk forward on a plane you are moving faster than the plane relative to Earth until you stop. When you walk backwards you are moving slower then the plane relative to Earth until you stop walking.
You should try it in a glass elevator where you can see the movement of the elevator. Perhaps then you could control it better relative to the exterior.
This guy is answering questions I didn't know I had