Hey everyone, I'm already seeing comments about this, don't forget that this does not mean that if you are moving at constant velocity in a moving car and jump that you will fly to the back! That is because when you are moving at a constant velocity you are going the same speed as the car already so there is nothing that would push you to the back of the car.
The Action Lab it would depend whether the car is accelerating/decelerating. If it is a car going at a constant velocity, then you wouldn’t move when you jumped.
The Action Lab actually if you jump and while you are in the air they either speed up quickly or break quickly you will not stay in motion with the car
The Action Lab hmm, well I know the down facing sensor is always active but I think you can put the mavic in manual, I have one I'll have to check, I just haven't flown in a few months because it's been freezing in Chicago.
The Action Lab I think it also uses GPS full time, but again I can't remember, but be careful with those plastic blades, early on I helped organize the Drone Racing League, I built a lot of racing drones, and one time the Drone went nuts and I literally had 20 deep Cuts in my thumb, I think I have it on video but I was spurting blood all over the place. I called those blades the plastic Chinese Ginsu knives. Those suckers are sharp no joke, I use all carbon fiber now.
When I was a kid, I've seen a fly buzzing around my face inside the car, while we were at high speed. I've thought, "How could a fly keep up with the car's speed?"
@@shawnwise2458 I'm stationery relative to the car because I am physically connected with the car. But the fly was suspended mid-air and was not touching the vehicle, so technically, it should not be stationery relative to the moving car.
@@cindymananzalamartinez6679 but because the car was basically a chamber it blocked all air flow so no drag other than gravity. So essentially it was as if the car wasn't moving.
You need a racing drone for this test, the Maverick is too advanced, the GPS compass input is not matching the down facing Optical sensor. It's trying to keep centered on the landing pad, but the optical stabilization input isn't matching the GPS or Compass input. It's essentially just confusing the flight controller because it's all mathematical.
Cappuccino - I’d imagine the drone had some stability assist systems such as trying to keep itself level with the ground etc. Those probably dont have an option to be turned off since it would be near impossible to fly a drone.
I literally have been thinking about this for the past 2 years at least, but never actually searched for it, but mine was in a moving plane, but this will do. I’m glad someone made this experiment. 😂
I dont know is it the same thing or not but can it explained why when helicopter fly in a vertical movement for some hours without any horizontal nor diagonal movement then landing verticaly with the same track as when the helicopter fly, is still landing in the same exact position just like before the helicopter flies even though the earth rotation velocity is 460 meters/s?
The car is changing speed from 0 to some speed positive, so there's acceleration. When there's acceleration, the drone won't accelerate with the car. But if the car is moving at a constant speed, without acceleration or deacceleration, maybe it will stay. Need to redo this experiment.
You have to factor in that the mavic has a optical down facing sensor, it's going to try to stay sooner with whatever is beneath it. But in this case the flight controller is just getting confused.
You need to do this inside of a big truck/moving van so there's room for it to really move around. The car is too small, these things tend to wobble a bit anyway so it's hard to tell what effect the car moving is having on it.
OMG! You literally just made me understand the concept of quasi equilibrium process in my ThermoDynamics engineering class. I couldn’t rap my head around the concept but after this video, it really did. Thank you sir
I've always thought about this when I was a kid and I saw a fly or something in the car. It's funny to see that someone actually made a video on this ^_^
@@jestes7 I suspect it would move as people do when they're not secured to something. For example, go round a corner and they lean the other way. Jam on the breaks and they fly through the windscreen.
Aaron Lowe but each scenario you are describing requires a change in momentum so obviously that would happen. What I’m wondering is what happens when just going at a constant speed.
Trung Lam that’s a good prediction! I would guess that too. But unless you’ve done the experiment who knows for sure! In a vacuum (space) you can maintain momentum, but in a car it is not a vacuum, but I’m thinking that the additional factor of air transfer from the drone (as shown while driving slowly in this experiment) would help keep it positioned and moving with the vehicle. Maybe a small chance, but I could also see the drone ever so gradually losing momentum and not being able to maintain the same speed as the car, and eventually hitting the back of it.
What i love about being human is our collective thought process. I just thought about this a few minutes ago and knew someone, somewhere has thought of the exact same thing. And luckily i was born in a time when im able to access other people's minds as well as their experiments through the internet.
This happened exactly the way I expected. These types of drones including the new Phantom and Mavic Air drones use a mix of ground position detecting sonar as well as GPS. If the GPS was turned off this experiment may have lead the drone to stay exactly in place with the car. For the first few feet the drone would be confused with the confliction between the GPS signal going through the car and the sonar sensor. It would just think that while the car is moving it would consider itself being offset from either being pushed by something like another person, object or the wind and realign itself, but when it gets too far it will priorities the GPS as they are both generally mixed to keep it steady as far as I know. This being said, turning the GPS off would give better results, but if it does happen to see outside of the car particularly with newer drones that have front, rear and bottom sensors it may still see that the car is separate from the ground outside. However if it just can see directly down with the GPS off it 'may' be more likely to stay in place as long as the car doesn't move too fast, the equivalent of the force of wind pushing it at it's max realignment speed.
Thanks a lot......this was the thing running around my head since my childhood....no one understood my question all these days..... thank you action lab 😍😍😍
So had this test been conducted in a way that made actual sense, he would have started moving the car while the drone was on the floor. From there he should bring the car up to a constant velocity. At this point, he can begin to hover the drone, which would show that the drone will only move upwards and NOT backwards due to Newton's first law. This can be related to how you can stand up and walk around on an airplane without falling backwards once it is moving at a constant velocity. At this point he has the drone hovering in place while the car is moving at a constant velocity. Next, he would have the driver slowly accelerate the car (press slightly harder on the gas pedal), which would show the drone begin to move backwards, since the drone itself does not experience the acceleration that the car is experiencing due to the fact that they are not touching. That can be related to how you feel yourself be pushed to the back of your seat when a car accelerates, but since you are in contact with the car, you don't fly out of the back.
Santy G Exactly. Thats a fairly dangerous test, spinning props and all. But anyways Until it has friction with the car, or something else that does, it has no outside force on it, except the cars atmospheric gas. Which is minimal. But. If it was a mini-blimp, results would differ. If a car accelerates with a helium balloon in it, not only does the balloon move with the car it accelerates faster than the car. Since the atmospheric gases (air) in the car have no friction, it stays put. It slightly compresses at the back of the car where its all accumulated. Since helium is lighter than that gas, it gets pushed to the front of the car. Atleast until inertia balances everything back out for a few moments. Right turn, balloon goes to right side of car. Hit the brakes, goes to the back of the car, etc.
Just a theory but with the windows closed it is kinda like its in a sealed atmosphere “no air movement “. But at the same time the drone is gps locked so wouldn’t it be trying to stay in its gps locked position until you give it any control input? I’d be curious to see what would happen with a drone with no gps?
Awesome experiment! Normally, going in a straight-line direction at a constant velocity should allow the drone to travel with a moving object (a.k.a the van). Assuming the van has all windows closed and no outside air is affecting the inside air. HOWEVER: One major factor that you didn't seem to consider was that the DJI Mavic Pro uses GPS to maintain it's absolute geographic location - and that is why the drone appears not to stay with the van. That is to be expected since the drone is programmed to maintain it's location!! :D
I want to clarify some things, if there's a window on top car and you jump out of the window and into the air, would you be able to get back to the car on the window or it would mean you gonna get hit into the street because you move at a lower speed then the car?
Your laughing at a man that could possibly injure himself? It’s his life so he does whatever he wants I remember when I was six I jumped off a bike going 80kph down a hill without any safety and I lived!
james pogrebetsky how does one hold a balloon string to it floats in the air wrong? The reason your head goes back is because of some gforce sciency stuff being connected to the car Air does not move backwards when you go fowards unless a windows open. I've done it a ton of times when I was little and I don't know how you'd do that wrong holding the string or not they didn't go back
Another example to clear the doubt, this experiment is just like why a plane can't just move up in the sky and cover the distance as earth is moving even when plane didn't move forward or backwards. It stays at same location because Earth's environment works as a closed air container (just like this car, in this example, it would actually move with object if instead of car it's a closed train compartment). So this video of yours is a wonderful science experiment. Thanks got making it.
You should drones with guarded blades when you do these experiments! In my opinion, ALL drones should have guarded blades. Eyes are too precious to lose.
Yes, but with that philosophy, you would not wear safety glasses when doing work where high-speed projectiles could be generated. You are working in close quarters with the drone, in a dynamic situation, precisely when such encounters are inevitable. Furthermore, propellers wont get broken or motors damaged. When a drone encounters a vertical surface, the doughnut-shaped airflow around it is disrupted in a manner that "sucks" the drone against the surface.
No it won't. First, the guard can be thin so it doesn't disrupt airflow. Second, the guard can be part of a duct to actually improve the performance of the fan. It biggest disadvantage is the additional weight.
This isn't a real experiment. Although anyone who has taken high school level science already knows the answer, the only way to really demonstrate it is to have a drone without GPS, and one that is much smaller (or a vehicle that's larger). In such a closed space, your aircraft will never be out of ground effect, and the turbulence created by the rotor is going to push it all over the place (which is one thing you are experiencing). Get something small like Ares helicopters- they are pretty rock solid just based on the internal gyros.
Many people will though, since he concludes something from these trials. So to me it is important to point out the flaws in what he does, since that is part of science, right? Testing the hypothesis and everything around it beyond the shadow of a doubt. :)
well are they testing for speed or acceleration? One of these will work; other will not. Go on highway or empty road; maintain constant speed and direction and it will work. Something something; bodies in motion...
You dont.. KNOW how long I wanted to learn this! I actually just asked on another science channel and they said to come here! I've wanted to this since I was like 8! (That's half my life!) Any ways, God bless you guys!
it think you mean atti mode witch is only activated when gps and the vision systems are unavailable. the only thing sportmode does is raise the speed and the gains on the remote and disable forward obstacle avoidance . trust me i flew (and crashed) drones without stabilisation.
gtjack9 you claim to have a mavic pro and yet you fail to realize the mavic pro does not have a toggle for Atti mode (manual) and on mavic pro Atti mode is a hardware fail safe for when other systems are offline like the GPS is unable to lock or IMUs are down... However this being said the reason the mavic pro or any modern DJI drone would be able to keep up in the car and hold position is because of the VPS and IMUs... VPS is a visual positioning system, uses the dual down facing cameras and dual front facing obstical avoidance cameras to estimate changes and adjustments.. the IMUs are inertial Measurement Units and they are measuring external changes that are impacting the drone like for example the turbulence pushing the drone up or down or away.. VPS sees the ground has moved along an axis and it attempts to compensate while the IMUs are saying that minimal change has occurred for what the VPS change was and that’s why the drone was unsteady and moving to the side a lot..
Also, I launched the drone once we had finished accelerating on the highway (about 50mph). If we suddenly slowed down it would fly into the windshield, and it we suddenly sped up it would fly into my face.
0:44 I think it will stay in place since that is a GPS drone and even with the GPS off it will not move with the car. I wounder if it would work with follow me mode?
Interesting. I already tried the jumping high on a jet and nothing happened. I did it while in the Air Force on a cargo jet. A lot of people think you will instantly fly to the back of the jet and splat on the back wall. But I'm wondering now if a drone will have different result on a jet because it stays in the air longer than I can stay in the air with a jump. From your car experiment, what do you think would happen on a jet?
dakota graham He's struggling flying a Drone, Rc Helicopters are very complex to fly, not everyone flies them (I mean real RC helicopters, not that cheap shits found on any toy store)
I have a similar question: in flight training we are told about “ground effect” in relation to our landings. I sent a question to The aeronautical Department at UCSLO and got no response. Here is the question, is ground effect present when operating a wind tunnel?
Perhaps the question should be, "Does one want to be in a vehicle with a flying drone as you maneuver the vehicle?" I would think as the driver, I'd be real nervous over that thing blasting away right behind me.
You should try it in a larger vehicle like a bus or something, you may get better results imo.... very interesting indeed I always wondered this since I was a kid when I saw a fly in our car thinking if he has to work harder to fly when the vehicle was in motion? Either way good good job Joe
acceleration vs speed; two different things. If a vehicle maintains same rate of speed and direction; then it will fly exactly the same as on earth; which is also moving at 1000mph or so. Newton's First Law...
its a generalization; if we want to be pedantic its 1000mph when referenced from the planet's center compared to the equator. In theory we are 490,000 miles per hour when compared to the great attractor; same idea...
If you can throw a baseball at 90 mph in the opposite direction of a vehicle you're in going 90 mph , will the baseball just hover in the air in one spot ?
From the perspective of a person outside the vehicle it will appear as if the baseball just fell straight down as if dropped. All movement is relative, that is to say you cannot define absolute movement, you can only say "this ball is moving relative to me".
It will hover/fall in one spot - the spot you were in when you threw it. Which would become 'out of the back windscreen' very quickly if you were going 90 mph.
Try getting the car up to speed on a straight path then start hovering to see if it stays "stationary". Also it would be cool to see what happens if the car is going a constant speed around a circular track before the drone starts hovering
DJI drones have GPS positioning and infrared sensors on the bottom to keep them as stable as possible when near ground or in air, so the drone tried to go back to the old position it knew when you moved via GPS but the bottom sensors told it there was a moving object. As soon as the bottom moving object was outside the tolerance the drone goes over to the GPS position, that's why it was staying for a little bit and then uncontrollably took off into one direction (keep in mind GPS is only accurate to about 2-3 meters).
I think simple experiment can be done with a mini drone. Just set a certain speed of the propellers which makes it (drone) float in the air and then tie it with a thread to the ceiling and then drive the car and see which way it moves from the center marking point.
I think it would be interesting to try this out in a moving van, with a smaller drone (less air being moved around). And to add to the type of experiment, try flying it up while moving to see if it is left behind or fly with the vehicle.
You should try it the other way round, find a long straight road and move at a constant velocity, while the drone is started on the round, at constant velocity, then lift off.
That was an interesting experiment. I remember tethering a helium-filled balloon to my gear shifter, and it floated in the opposite direction than I expected as I drove. I guess due to the way that the air moved inside the car with the windows up. I wonder if the drone is influenced similarly?
Maybe he just doesn't know how to trim it out. So he was constantly micro adjusting it. Could just be because the van is such a small space so its causing turbulent air, because I've seen Mavics be more stable outside with a breeze.
Problem is it also uses camera to keep its position so this experiment is flawed. The flight controller will try to keep the drone inside the car, but the forward accelerating car would otherwise not get the drone to follow.
Kyle Vardy and no info if downward vision was disabled. It would have helped it to stay in place. And there are propeller cages for the Mavic, would have been a smart move to use instead enclosing oneself in a big blender...
I assume you'd have to have modified software in the drone, in order to have controlled flight. As I don't think there would be anyway to get it to descend normally.
The drone will keep moving with car in one case only, if you take off while the car is already moving forward because then the drone has it’s own energy of moving froward before it takes off and after a while of flying the drone will start to lose the energy of moving forward and will be separated from the car. I haven’t tried this, this is only my opinion from my knowledge :)
Almost. It actually depends if the car is traveling at a constant velocity or accelerating. If the vehicle is moving at a constant velocity the drone will just sit there (assuming a perfect hover) but if the vehicle were to accelerate it would move back relative to someone sat in the car. The drone is experiencing no air resistance within the vehicle assuming door and windows are closed, its not a perfect system but its close enough. You could do the same experiment with a tray and a small ball, place the ball on the tray and accelerate or decelerate and the ball moves... place the ball on the tray while the vehicle is moving at a constant velocity and it will stay in the same place.
if the vehicle is enclosed and moving at a constant speed the drone will just move along with it until the vehicle decelerates or accelerates the "foward energy" doesnt get used up because from the drone's frame of reference its not moving
Hey I have a doubt : If I am driving a car and there is a trailer truck ahead of me ,our velocities are same , so if the drive in it will my car stop or will it move ahead in trailer.
What about front wheel drive cars? Although I imagine to the car it wouldn't know the difference between the road and a trailer in the moment- to it they're both stationary. Except the very short moment the tire is half on the road and half on the trailer, that would probably cause some wear.
Biggest issue with lifts/elevators: they're rarely going at a constant speed; it's almost always accelerating or decelerating. This will make the flight crazy erratic. Now if the lift is moving at a constant speed, it gets boring.
What if the vehicle is already in motion at 20, 40, or even 60 mph. When starting the aircraft, will it immediately be thrown towards the back or hover easily?
Hey everyone, I'm already seeing comments about this, don't forget that this does not mean that if you are moving at constant velocity in a moving car and jump that you will fly to the back! That is because when you are moving at a constant velocity you are going the same speed as the car already so there is nothing that would push you to the back of the car.
What if the cars stopped you jump and they floor it?
Cool video! This is one of the best proofs the Earth is flat! :)
The Action Lab it would depend whether the car is accelerating/decelerating. If it is a car going at a constant velocity, then you wouldn’t move when you jumped.
The Action Lab actually if you jump and while you are in the air they either speed up quickly or break quickly you will not stay in motion with the car
The Action Lab hey can you try to put polyethelyne glycol in a blender ands see if anything changes?
You need to put the Drone in atti or manual mode, it's trying to keep its self in the same place with whatever is beneath it via the optical sensor.
It was in atti mode
Plus the transparent protective cover of the drone is not removed ... you can see the gimbal attempting to move.
The Action Lab hmm, well I know the down facing sensor is always active but I think you can put the mavic in manual, I have one I'll have to check, I just haven't flown in a few months because it's been freezing in Chicago.
The Action Lab I think it also uses GPS full time, but again I can't remember, but be careful with those plastic blades, early on I helped organize the Drone Racing League, I built a lot of racing drones, and one time the Drone went nuts and I literally had 20 deep Cuts in my thumb, I think I have it on video but I was spurting blood all over the place. I called those blades the plastic Chinese Ginsu knives. Those suckers are sharp no joke, I use all carbon fiber now.
Warped Perception bro, its physics. He tried to do it as analog as possible.
Glad I’m not the only one that uses their significant other as an assistant
The Nocturnal Alchemist They signed up for it when saying I do..
The Nocturnal Alchemist ofcourse IT Will not Stay in the car if you move it
I'm glad I'm not his significant other as his assistant.
Hey lad I love your channel. Keep up the good work mate!
The Nocturnal Alchemist I saw u in the ductape glove video
I always had such a question in my mind about fly in a bus , thanks for this👌
Hhahaah yeh
Thought it was only me
When I was a kid, I've seen a fly buzzing around my face inside the car, while we were at high speed. I've thought, "How could a fly keep up with the car's speed?"
But to the fly everything around it was stationery same that it is for you. If not for the windows and g forces you'd assume you were stopped.
@@shawnwise2458 I'm stationery relative to the car because I am physically connected with the car. But the fly was suspended mid-air and was not touching the vehicle, so technically, it should not be stationery relative to the moving car.
@@cindymananzalamartinez6679 but because the car was basically a chamber it blocked all air flow so no drag other than gravity. So essentially it was as if the car wasn't moving.
@@shawnwise2458 You're right. The deciding factor here is whether the windows are closed or not.
@@shawnwise2458 i have always wondered the same thing. Can i please get scientific explanation ?
You need a racing drone for this test, the Maverick is too advanced, the GPS compass input is not matching the down facing Optical sensor. It's trying to keep centered on the landing pad, but the optical stabilization input isn't matching the GPS or Compass input. It's essentially just confusing the flight controller because it's all mathematical.
What he said🖒
Didn’t he say he turned all that stuff off?
Cappuccino - I’d imagine the drone had some stability assist systems such as trying to keep itself level with the ground etc. Those probably dont have an option to be turned off since it would be near impossible to fly a drone.
Tayfun Akin the
I didn't understand what you just said, but it sounded very smart
WTF THE CAR STARTING LEVITATING AT 4:24
Tangy Toast lol
Tangy Toast ,Lol it does look like is levitating when you look at the windows jajajaja , that's funny.
Well, the drone was reving pretty hard.
TJ Carlin Vlogs. It is on the video. It levitated. Watch it again.
Kick Saunders. Good ad cor that drone. Look! My payload is a mini van. Beat that Amazon.
I literally have been thinking about this for the past 2 years at least, but never actually searched for it, but mine was in a moving plane, but this will do. I’m glad someone made this experiment. 😂
I dont know is it the same thing or not but can it explained why when helicopter fly in a vertical movement for some hours without any horizontal nor diagonal movement then landing verticaly with the same track as when the helicopter fly, is still landing in the same exact position just like before the helicopter flies even though the earth rotation velocity is 460 meters/s?
Yes, it's the same thing, that's why you could move/walk normally and doesn't feel anything wrong in the car even though the car is moving
The car is changing speed from 0 to some speed positive, so there's acceleration. When there's acceleration, the drone won't accelerate with the car. But if the car is moving at a constant speed, without acceleration or deacceleration, maybe it will stay. Need to redo this experiment.
Gerard Tan yeah, relativity
Gerard Tan it was given to him
it will not lol unless it is attached to car. Any movement will not affect the drone as it is not attached to car in any way.
Gerard Tan I agree. The whole opening the windows and doors was pointless.
You have to factor in that the mavic has a optical down facing sensor, it's going to try to stay sooner with whatever is beneath it. But in this case the flight controller is just getting confused.
You need to do this inside of a big truck/moving van so there's room for it to really move around. The car is too small, these things tend to wobble a bit anyway so it's hard to tell what effect the car moving is having on it.
OMG! You literally just made me understand the concept of quasi equilibrium process in my ThermoDynamics engineering class. I couldn’t rap my head around the concept but after this video, it really did. Thank you sir
Please explain me too
I've always thought about this when I was a kid and I saw a fly or something in the car.
It's funny to see that someone actually made a video on this ^_^
E drop another ytber did it and it was better
Oh my god same !!
Same
E drop it he air is not moving the car is the air is moving with the car
SAME
I thought you will initially run the car at constant speed and then fly the drone. Path of car should be straight.
No that wouldn't work because the drone would then have an initial speed and direction. It wouldn't be lifting off from a standstill position.
Aaron Lowe but it would be a nice additional experiment. I would rather have seen that one, but I’m sure there are lots of difficulties
@@jestes7 I suspect it would move as people do when they're not secured to something. For example, go round a corner and they lean the other way. Jam on the breaks and they fly through the windscreen.
Aaron Lowe but each scenario you are describing requires a change in momentum so obviously that would happen. What I’m wondering is what happens when just going at a constant speed.
Trung Lam that’s a good prediction! I would guess that too. But unless you’ve done the experiment who knows for sure! In a vacuum (space) you can maintain momentum, but in a car it is not a vacuum, but I’m thinking that the additional factor of air transfer from the drone (as shown while driving slowly in this experiment) would help keep it positioned and moving with the vehicle.
Maybe a small chance, but I could also see the drone ever so gradually losing momentum and not being able to maintain the same speed as the car, and eventually hitting the back of it.
Looks like someone skipped physics class.
lol
Since you didnt, please explain
How'd you know dad?
Ok kindly explain... Im waiting
Its because of the air
What i love about being human is our collective thought process. I just thought about this a few minutes ago and knew someone, somewhere has thought of the exact same thing. And luckily i was born in a time when im able to access other people's minds as well as their experiments through the internet.
hey, you are not alone, i 've been thinking of it for many many years :)
Haha.. 1st try to keep it steady
This happened exactly the way I expected. These types of drones including the new Phantom and Mavic Air drones use a mix of ground position detecting sonar as well as GPS. If the GPS was turned off this experiment may have lead the drone to stay exactly in place with the car. For the first few feet the drone would be confused with the confliction between the GPS signal going through the car and the sonar sensor. It would just think that while the car is moving it would consider itself being offset from either being pushed by something like another person, object or the wind and realign itself, but when it gets too far it will priorities the GPS as they are both generally mixed to keep it steady as far as I know. This being said, turning the GPS off would give better results, but if it does happen to see outside of the car particularly with newer drones that have front, rear and bottom sensors it may still see that the car is separate from the ground outside. However if it just can see directly down with the GPS off it 'may' be more likely to stay in place as long as the car doesn't move too fast, the equivalent of the force of wind pushing it at it's max realignment speed.
I've wondered about that tossing a ball in a car thing for years... Thanks a lot for this 😃
I’ve always wondered about the same thing 😂glad to know I’m not the only one
lol reading the comments on this guy's videos makes me feel like I'm somehow not as stupid as I thought I was
Mike Wazowski that is exactly what i was thinking😂😂😂😂
Mike Wazowski Haha
😂
Video starts at 1:32
Okto - osu! and Stuff thank you sir
Thanks a lot......this was the thing running around my head since my childhood....no one understood my question all these days..... thank you action lab 😍😍😍
I also have been thinking about this for years.
I'm glad he answered this question because I've always asked myself this
DJI Mavics have two sensors placed on the bottom of the drone to keep the drone in place while in take off. That's why it stayed where it was. 👍🏻
Biggsy Those sensors are only for altitude.
And it is a collusion sensor that’s why the drone goes up when he put a plastic cover beneath it
Markus The Mechanic There are no collision sensors on the bottom
That is a proximity censor / ultrasonic censor
Markus The Mechanic It is called sonar and it it only used for altitude stabilization.
So had this test been conducted in a way that made actual sense, he would have started moving the car while the drone was on the floor. From there he should bring the car up to a constant velocity. At this point, he can begin to hover the drone, which would show that the drone will only move upwards and NOT backwards due to Newton's first law. This can be related to how you can stand up and walk around on an airplane without falling backwards once it is moving at a constant velocity.
At this point he has the drone hovering in place while the car is moving at a constant velocity. Next, he would have the driver slowly accelerate the car (press slightly harder on the gas pedal), which would show the drone begin to move backwards, since the drone itself does not experience the acceleration that the car is experiencing due to the fact that they are not touching. That can be related to how you feel yourself be pushed to the back of your seat when a car accelerates, but since you are in contact with the car, you don't fly out of the back.
Santy G thank you
Santy G
Exactly. Thats a fairly dangerous test, spinning props and all. But anyways
Until it has friction with the car, or something else that does, it has no outside force on it, except the cars atmospheric gas. Which is minimal.
But. If it was a mini-blimp, results would differ. If a car accelerates with a helium balloon in it, not only does the balloon move with the car it accelerates faster than the car. Since the atmospheric gases (air) in the car have no friction, it stays put. It slightly compresses at the back of the car where its all accumulated. Since helium is lighter than that gas, it gets pushed to the front of the car. Atleast until inertia balances everything back out for a few moments. Right turn, balloon goes to right side of car. Hit the brakes, goes to the back of the car, etc.
Nerd
Santy G
Sault _YT except that he is wrong.
Just a theory but with the windows closed it is kinda like its in a sealed atmosphere “no air movement “.
But at the same time the drone is gps locked so wouldn’t it be trying to stay in its gps locked position until you give it any control input? I’d be curious to see what would happen with a drone with no gps?
Awesome experiment! Normally, going in a straight-line direction at a constant velocity should allow the drone to travel with a moving object (a.k.a the van). Assuming the van has all windows closed and no outside air is affecting the inside air.
HOWEVER:
One major factor that you didn't seem to consider was that the DJI Mavic Pro uses GPS to maintain it's absolute geographic location - and that is why the drone appears not to stay with the van. That is to be expected since the drone is programmed to maintain it's location!! :D
I want to clarify some things, if there's a window on top car and you jump out of the window and into the air, would you be able to get back to the car on the window or it would mean you gonna get hit into the street because you move at a lower speed then the car?
No safety glasses or nothing. Lol be safe man🤓
Your laughing at a man that could possibly injure himself? It’s his life so he does whatever he wants I remember when I was six I jumped off a bike going 80kph down a hill without any safety and I lived!
Piemack2006 next time wear a helmet🤕
crazy russian hacker?
@El Capitano Kapitan it's is the 1 priority in your country he's in Get you facts straight before you comment
I think every kid has kinda tried this with a balloon
The ballon will move to the front actually for different reason....check net
Sudarshan Pujari I've done it many times when I was young. Balloon never moved
+J⃟O⃟N⃟A⃟T⃟H⃟A⃟N⃟ S⃟C⃟H⃟U⃟L⃟T⃟Z⃟
then you did it wrong. That would be like saying your head wouldn't move when the car accelerates. hint, it does.
james pogrebetsky how does one hold a balloon string to it floats in the air wrong?
The reason your head goes back is because of some gforce sciency stuff being connected to the car
Air does not move backwards when you go fowards unless a windows open.
I've done it a ton of times when I was little and I don't know how you'd do that wrong holding the string or not they didn't go back
J⃟O⃟N⃟A⃟T⃟H⃟A⃟N⃟ S⃟C⃟H⃟U⃟L⃟T⃟Z⃟ you might want to try it again, as an adult. It’s basic physics.
Another example to clear the doubt, this experiment is just like why a plane can't just move up in the sky and cover the distance as earth is moving even when plane didn't move forward or backwards. It stays at same location because Earth's environment works as a closed air container (just like this car, in this example, it would actually move with object if instead of car it's a closed train compartment). So this video of yours is a wonderful science experiment. Thanks got making it.
Oh boy. A cell phone that's a fidget spinner. What a time to be alive.
Wife should have reversed it instead really fast and shout afterwards
"IT WAS JUST A PRANK BRUHHHHH"
Hahaha jesus everybody who visited highschoool knows whats going to happen
Hoichael Stoderzinken his audience contains children who don't know. Don't be so self centered
so whats going to happen? i dont know, though ive been to highschool
Or read the comments
Jesus said worry more about spelling high school correctly.
Daniel Guzman yes
You should drones with guarded blades when you do these experiments! In my opinion, ALL drones should have guarded blades. Eyes are too precious to lose.
a better idea would be not to fly a drone into your eye
Yes, but with that philosophy, you would not wear safety glasses when doing work where high-speed projectiles could be generated. You are working in close quarters with the drone, in a dynamic situation, precisely when such encounters are inevitable. Furthermore, propellers wont get broken or motors damaged. When a drone encounters a vertical surface, the doughnut-shaped airflow around it is disrupted in a manner that "sucks" the drone against the surface.
Or fly one of the small toy ones instead of a big one
Small ones can injure eye easier then the large ones! They are typically flown indoors or in close proximity to people.
No it won't. First, the guard can be thin so it doesn't disrupt airflow. Second, the guard can be part of a duct to actually improve the performance of the fan. It biggest disadvantage is the additional weight.
Wow! That was really cool. Now I know what it'll happen if I levitate in a bullet train...
This isn't a real experiment. Although anyone who has taken high school level science already knows the answer, the only way to really demonstrate it is to have a drone without GPS, and one that is much smaller (or a vehicle that's larger). In such a closed space, your aircraft will never be out of ground effect, and the turbulence created by the rotor is going to push it all over the place (which is one thing you are experiencing). Get something small like Ares helicopters- they are pretty rock solid just based on the internal gyros.
Many people will though, since he concludes something from these trials. So to me it is important to point out the flaws in what he does, since that is part of science, right? Testing the hypothesis and everything around it beyond the shadow of a doubt. :)
Lone Madrone I agree your exactly correct
well are they testing for speed or acceleration?
One of these will work; other will not.
Go on highway or empty road; maintain constant speed and direction and it will work. Something something; bodies in motion...
devops'y a body in motion tends to stay in motion, while a body at rest tends to stay at rest. Yet the experiment starts at rest(theoretically)
yep; what i was alluding to.
5:05 your wife just left you
Kool hwip
She's her sister
He married his sister?
@@fundemort yeah he's a moslim.
You dont.. KNOW how long I wanted to learn this! I actually just asked on another science channel and they said to come here! I've wanted to this since I was like 8! (That's half my life!) Any ways, God bless you guys!
1:33 er... you may want to, you know, not be BEHIND the drone...
The gps is what is creating the bizarre behaviour you are witnessing!
Think Lab He said he turned it off.
Papii Chuloo actualy manual mode doesnt mean its not going to stabilise with gps.
it think you mean atti mode witch is only activated when gps and the vision systems are unavailable.
the only thing sportmode does is raise the speed and the gains on the remote and disable forward obstacle avoidance .
trust me i flew (and crashed) drones without stabilisation.
I would say its they gyro and accelerometer
gtjack9 you claim to have a mavic pro and yet you fail to realize the mavic pro does not have a toggle for Atti mode (manual) and on mavic pro Atti mode is a hardware fail safe for when other systems are offline like the GPS is unable to lock or IMUs are down...
However this being said the reason the mavic pro or any modern DJI drone would be able to keep up in the car and hold position is because of the VPS and IMUs... VPS is a visual positioning system, uses the dual down facing cameras and dual front facing obstical avoidance cameras to estimate changes and adjustments.. the IMUs are inertial Measurement Units and they are measuring external changes that are impacting the drone like for example the turbulence pushing the drone up or down or away.. VPS sees the ground has moved along an axis and it attempts to compensate while the IMUs are saying that minimal change has occurred for what the VPS change was and that’s why the drone was unsteady and moving to the side a lot..
I've done this before with a smaller drone. It isn't affected by the movement of the car.
Also, I launched the drone once we had finished accelerating on the highway (about 50mph). If we suddenly slowed down it would fly into the windshield, and it we suddenly sped up it would fly into my face.
+TurkeyBoy55 that’s cool. I think that the smaller the drone compared to the vehicle the less effect the vehicle has on it too.
The Action Lab it's not size, the Mavic uses GPS to stay at his original location. That's why it moves back when you drive the car.
0:44 I think it will stay in place since that is a GPS drone and even with the GPS off it will not move with the car.
I wounder if it would work with follow me mode?
Interesting. I already tried the jumping high on a jet and nothing happened. I did it while in the Air Force on a cargo jet. A lot of people think you will instantly fly to the back of the jet and splat on the back wall. But I'm wondering now if a drone will have different result on a jet because it stays in the air longer than I can stay in the air with a jump. From your car experiment, what do you think would happen on a jet?
He needs a rc helicopter,
Not a drone with GPS and motion sensors
dakota graham He's struggling flying a Drone, Rc Helicopters are very complex to fly, not everyone flies them (I mean real RC helicopters, not that cheap shits found on any toy store)
Diego Andrés Luna Hernández
A cheap one
Not a big expensive one
Diego Andrés Luna Hernández just something that hovers in the air
With no sensors of any kind
dakota graham Gps and motion sensors on a drone can easily be turned off. So no rc-helicopter needed for this experiment. I fly both.
I agree. I get the point of what you're saying. He needs a simple $30 Amazon special. Better for the experiment and WAY cheaper if damaged
Should do this again with a mini drone. Much better and stable in small spaces.
preston121068 well, a mini drone would make no difference, just that it’s smaller so it can move more before hitting the side.
Preton121068 l agree with you
I have a similar question: in flight training we are told about “ground effect” in relation to our landings. I sent a question to The aeronautical Department at UCSLO and got no response. Here is the question, is ground effect present when operating a wind tunnel?
Perhaps the question should be, "Does one want to be in a vehicle with a flying drone as you maneuver the vehicle?" I would think as the driver, I'd be real nervous over that thing blasting away right behind me.
Friend: hahahahha look at that phone man
Me: bitch this is a fidget spinner
I AM DERP. no shit! So what
You should try it in a larger vehicle like a bus or something, you may get better results imo.... very interesting indeed I always wondered this since I was a kid when I saw a fly in our car thinking if he has to work harder to fly when the vehicle was in motion? Either way good good job Joe
F
acceleration vs speed; two different things. If a vehicle maintains same rate of speed and direction; then it will fly exactly the same as on earth; which is also moving at 1000mph or so.
Newton's First Law...
its a generalization; if we want to be pedantic its 1000mph when referenced from the planet's center compared to the equator.
In theory we are 490,000 miles per hour when compared to the great attractor; same idea...
I just realized how interesting this will be...
2:15 bro almost died in the name of science
If you can throw a baseball at 90 mph in the opposite direction of a vehicle you're in going 90 mph , will the baseball just hover in the air in one spot ?
Ja Z Yes. The mythbusters filmed a simliar experiment with a basketball I think.
From the perspective of a person outside the vehicle it will appear as if the baseball just fell straight down as if dropped. All movement is relative, that is to say you cannot define absolute movement, you can only say "this ball is moving relative to me".
Ja Z nice
It will hover/fall in one spot - the spot you were in when you threw it. Which would become 'out of the back windscreen' very quickly if you were going 90 mph.
What if there's 100mph wind and you are driving 100mph in the same direction
Terrible execution
Kyle Sheffield u mom da big geay
Glad you came to your senses before the vehicle moved another 2 feet.
Try getting the car up to speed on a straight path then start hovering to see if it stays "stationary". Also it would be cool to see what happens if the car is going a constant speed around a circular track before the drone starts hovering
Walk inside a flying airplane ✈️ in the direction of the plane.. now you are moving faster than the plane (plane initial speed + your speed)
MDS Minecraft 45 Repeat the experiment with a plain that's going almost at the speed of light. EXPERIMENT FAILED
Ricky Pazzi plane*
Ricky Pazzi No Mass Can Travel in the speed of light... experiment impossible👍
MDS Minecraft 45 You don't know that for sure though.
William Mosley No.. Its true!
At 4:35 the van looks like its floating away
I thought of this for 3 years every week finnaly found it
I've been wondering about this for 2 years thank you.
DJI drones have GPS positioning and infrared sensors on the bottom to keep them as stable as possible when near ground or in air, so the drone tried to go back to the old position it knew when you moved via GPS but the bottom sensors told it there was a moving object. As soon as the bottom moving object was outside the tolerance the drone goes over to the GPS position, that's why it was staying for a little bit and then uncontrollably took off into one direction (keep in mind GPS is only accurate to about 2-3 meters).
Try a drone with out gps or turn off the gps.
I think simple experiment can be done with a mini drone. Just set a certain speed of the propellers which makes it (drone) float in the air and then tie it with a thread to the ceiling and then drive the car and see which way it moves from the center marking point.
I think the GPS was off because the lights were flashing red and yellow. It should be green when it has signal.
Try actually watching the video. He literally says that he turned it all off.
mrodg88 lol I tried. I just couldn't. Not the whole video.
A "drone" without GPS is not a drone. But nice try
My head has been hurting for 3 days thinking what happens if an object flies in a car
The 5k dislikes are from people who loves flying drones inside cars
Why didn’t you try driving at 50 mph windows closed
I think it would be interesting to try this out in a moving van, with a smaller drone (less air being moved around). And to add to the type of experiment, try flying it up while moving to see if it is left behind or fly with the vehicle.
You should try it the other way round, find a long straight road and move at a constant velocity, while the drone is started on the round, at constant velocity, then lift off.
So if you start slow and then eventually go at normal road speeds would it work or fail like you were saying
I think you should move the car first , then you should fly it and , with constant speed regardless of the speed quantity .
That was an interesting experiment. I remember tethering a helium-filled balloon to my gear shifter, and it floated in the opposite direction than I expected as I drove. I guess due to the way that the air moved inside the car with the windows up. I wonder if the drone is influenced similarly?
🚐🚋🚌🚈
You have ask the answers to my important life questions.
what about flying a drone in a plane while it takes off? LMFAO
You had to use a 1000$ drone
ReKt SoN he should've used those pocket $9 micro drone
Yes because the mavic is very stable. Better for the circumstances of the experiment
Ratchet Bunny "very stable"? He could barely hover the thing
Maybe he just doesn't know how to trim it out. So he was constantly micro adjusting it. Could just be because the van is such a small space so its causing turbulent air, because I've seen Mavics be more stable outside with a breeze.
Problem is it also uses camera to keep its position so this experiment is flawed. The flight controller will try to keep the drone inside the car, but the forward accelerating car would otherwise not get the drone to follow.
A tennis ball or any ball if you through it up in a car it will keep moving with the car because no forces are opposing it.
Rule number one: Always wear appropriate safety gears. You should have been wearing goggles. You could have lost an eye with those sharp blades
I always have this question, I asked many guyz. I was guessing the same. Thanks for this. Sometimes physics is magic.
TRY TAKEING OFF WHILE AT SPEED ON THE FREEWAY, WINDOWS CLOSED AND THEN OPEN.
Hey dji drones have GPS stabilization so your test worn work right
Kyle Vardy and no info if downward vision was disabled. It would have helped it to stay in place. And there are propeller cages for the Mavic, would have been a smart move to use instead enclosing oneself in a big blender...
You should try this speeding down a highway. Moving that slowly would be easy to correct quick enough to keep moving with the car.
You should do it in a box truck and mark the walls might be easier
What if you fly a drone inside a spaceship?
I always wondered that (actually just now)
Pro Player 1⃣ 🤣
King of Random did that.
I assume you'd have to have modified software in the drone, in order to have controlled flight.
As I don't think there would be anyway to get it to descend normally.
Pro Player 1⃣ I know that a fly cannot fly inside a vacuum so i would say neither could a drone
Genuinly always wanted to know that
Could've just tried google ya know
Bomara do u relaly think it woukd be on google + google know always right ya know
Or you could've just thought about it for about 2 seconds.
What id like to see is driving down the highway windows up, drone on the ground then lift off inside and see if it goes towards the back
Hello there. I am interested to know what would have happened if you took off while the car is moving?
Even better. Off a flat bed trailer.
The drone will keep moving with car in one case only, if you take off while the car is already moving forward because then the drone has it’s own energy of moving froward before it takes off and after a while of flying the drone will start to lose the energy of moving forward and will be separated from the car.
I haven’t tried this, this is only my opinion from my knowledge :)
Alaa Alahmad yes, like us on the spinning earth
Almost. It actually depends if the car is traveling at a constant velocity or accelerating. If the vehicle is moving at a constant velocity the drone will just sit there (assuming a perfect hover) but if the vehicle were to accelerate it would move back relative to someone sat in the car.
The drone is experiencing no air resistance within the vehicle assuming door and windows are closed, its not a perfect system but its close enough. You could do the same experiment with a tray and a small ball, place the ball on the tray and accelerate or decelerate and the ball moves... place the ball on the tray while the vehicle is moving at a constant velocity and it will stay in the same place.
if the vehicle is enclosed and moving at a constant speed the drone will just move along with it until the vehicle decelerates or accelerates the "foward energy" doesnt get used up because from the drone's frame of reference its not moving
This is all assuming that the GPS is disabled.
Alaa Alahmad The drone has downward sensors and will move with the car if not connected by gps
Hey I have a doubt :
If I am driving a car and there is a trailer truck ahead of me ,our velocities are same , so if the drive in it will my car stop or will it move ahead in trailer.
You will move at twice the speed man lol.
What the hell are you trying to say
Netts Can you rephrase for me I'm not sure what he's trying to say and I'm curious
Netts Really appreciate all this. You take care as well, thank you.
What about front wheel drive cars? Although I imagine to the car it wouldn't know the difference between the road and a trailer in the moment- to it they're both stationary. Except the very short moment the tire is half on the road and half on the trailer, that would probably cause some wear.
I had this random thought in my head and I never knew people made vids on it
Your wife is really helpful to you and she really respect you and loves you a lot
Same concept as a fly inside a flying commercial jetliner
Airmanmx1 True, but I can't remember ever seeing a fly inside a plane. It's odd.
DLJ pls don’t tell me you are one of those “matrix” is real. Oh I haven’t seen a fly inside an airplane so it must be a glitch.
Airmanmx1 - no, I'm just someone who makes silly jokes. Although I genuinely can't remember seeing a fly inside a plane.
DLJ ever jumped in an elevator right before you know it will stop?
Airmanmx1 What happens?
all the highschool passed..
JUST LEAVE
My M8 no
My M8 but I'm curious
Edit: wrong person
redstone craft guy oops didn't mean to reply to yours, sorry
Obviously you didn't. Go back and learn some sentence structure
Felt so sorry for your drone 😅 Thanks for the sacrifice~
@actionlab im curious of what will happen to the drone if you start flying it when the car is moving at a constant speed?
The drone geo-location that means it will try and keep the GPS coordinate if the remote has no input.
???????????? Do you know what inertia means right?
Go Wikipedia --> Newton's laws of movement please.
fidget spinner phone?
cool, now all we need is to connect the spinner part to a dynamo so we can charge our phones by using them as fidget spinners
meepy MC great idea! I’m gonna be so rich...
Richard Norris you mean we are gonna be rich right?
Do this, please!
That's innovation bro
meepy MC ;
My guess: it'll move with the car when the doors and back are closed, but will slowly back out when they are opened due to the wind
Can you do a liftoff and landing on a rotating merry go round? Thanks
Pls try to fly it in a lift :3
missing.no_ Casey neistat flew one in an Emirates plane so...
Lyft
Biggest issue with lifts/elevators: they're rarely going at a constant speed; it's almost always accelerating or decelerating. This will make the flight crazy erratic. Now if the lift is moving at a constant speed, it gets boring.
**FacePalm**
What if the vehicle is already in motion at 20, 40, or even 60 mph. When starting the aircraft, will it immediately be thrown towards the back or hover easily?
The vehicle could be going as fast as the speed of sound as long as the speed stays the same it will hover in place.
Lol, this was a question I hade when i was very young , finally got an answer.