about 9 months ago - No comments
The commonwealth of Puerto Rico, a territory of the United States, is a popular vacation destination for people all over the world, and Puerto Rico casinos fit in well with the whole exciting and glamorous image. Visitors to Puerto Rico give a high rating to its hotel casinos, and consistently call them some of the More >
about 9 months ago - No comments
Most people want to burn calories and lose weight, but want to avoid the inconvenience of going to a gym every day. For this reason, prefer to buy a treadmill, because it is one of the best options to achieve these goals. The problem is that people who need to use a treadmill are the More >
about 9 months ago - No comments
For humankind who don’t apprehend a treadmill is a contraption that is used to tone up the build of the person using it. Regularly this category of fitness device is seen in fitness centres today. But lately, many general public who do not have any opportunity to go the gym suggest having their own treadmill More >
about 9 months ago - No comments
Is BJJ Manifesto by Matt Arroyo works? Don’t bυу BJJ Manifesto by Matt Arroyo until yου hear what I think honestly about this product. First of all, you must know that the authors of BJJ Manifesto Matt Arroyo and Rob Kahn along have 25 years practical experience of Jiu Jitsu training. Just in case you’ve never heard about them, More >
about 9 months ago - No comments
Introduction: What would clue you to the fact that you should obtain your own personal treadmill? It is whenever you realize that it is critical for you to exercise, but still you haven’t got sufficient time to work out at the gym. But don’t just go out to buy your own treadmill just yet. Treadmills More >
about 9 months ago - No comments
A Smooth treadmill offers a great workout for the serious runner and the novice alike. With a sturdy frame and a range of great exercising features, a Smooth treadmill has everything you need to reach your fitness goals, whether these are getting you up to marathon running speed, or just getting in shape for the More >
about 9 months ago - No comments
Motor is the heart of any treadmill. And only a heart specialist should do a heart operation or a transplant! Treadmill motor repairs can be costly as you never know what the defect is. so whatever may be the depth of your love for the heart of your own treadmill, don’t express it yourself. Look More >
about 9 months ago - No comments
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about 9 months ago - No comments
Running is a beautiful way to get fit. It is so simple and so basic, and while it can be difficult at first, the rewards come quickly to those who persist. Running is also one of the most efficient ways to burn calories. As a cardiovascular exercise, it reduces the risk of certain diseases, strengthens More >
about 1 year ago
Nah, I just think we just have a misunderstanding of the original argument that’s all. You don’t quite understand how I interpreted the premise, but that’s cool. Obviously most people interpreted it your way.
about 1 year ago
@Sconz32 You don’t understand the premise of the experiment. Think outside the box, sconz….if you don’t understand what I am showing, then you will not understand the conclusions.
Feel free to believe that the plane will not take off and that perpetual motion machines might exist, we just haven’t discovered them yet.
about 1 year ago
You don’t understand the premise of the argument. The treadmill must constantly, at all times, be matching the wheel speed. You can’t just turn the treadmill on at a constant speed, then push the plane forward.
about 1 year ago
I particularly agree with the way the man explained why everything happened the way it did.
about 1 year ago
This video is an excellent demonstration and explanation. I particularly enjoyed you displaying how only the rolling friction needs to be overcome, regardless of the increasing speed of the treadmill.
about 1 year ago
The wheels would be spinning backward when it took off.
about 1 year ago
ahahaha
about 1 year ago
for all the people that are still saying things like: ‘if the treadmill is travelling at the same speed as the plane, it won’t take off’, just think about it…. the planes propulsion comes from it’s jets, or – in this case – propellers. the wheels have no effect on the planes speed, they are there purely to make take off and landing smoother.
and, if the wheels DID provide the thrust needed to make the plane take off (and fly), how would it move forward whilst in the air?
about 1 year ago
the wheels could be spinning backward and it would still take off
about 1 year ago
i cant believe people still has a hard time understanding the concept..
about 1 year ago
I see where you’re going with it, but I don’t think it would work. Aircraft wheels are designed to go quickly from stationary to spinning rapidly with minimal resistance — they have very little inertia. So when you stop the treadmill, the plane isn’t going go get much energy transferred from the wheels stopping.
Even if the wheels did have a lot of inertia, they’d probably “burn out” when you stop the treadmill — just like when you floor the accelerator in a stationary high-performance car.
about 1 year ago
Yes, but once you get your wheels moving really fast, you could then stop the treadmill, forcing the plane onto a small runway already at a high speed since the wheels are still turning so rapidly, this would cause enough airspeed under its wings for it to takeoff no?
about 1 year ago
No, because the treadmill is only affecting the plane’s groundspeed, not its airspeed. Groundspeed controls how quickly the wheels will be spinning, where airspeed is what actually allows the plane to fly. The prop increases airspeed regardless of how the wheels are turning.
However, you can rapidly accelerate the plane if you push on a fixed part of it rather than the wheel. This “catapult” method is how the Navy gets high-speed fighters to take off the short runways on aircraft carriers.
about 1 year ago
I want to see a full sized plane take off like this, from a treadmill that is going super fast. I thought the mythbusters test was a joke.
about 1 year ago
Hmm thats an interesting concept. I think it there is a way to suddenly put it to zero, it might be possible
about 1 year ago
So basically when you overcome friction the plane enters some kind of physical homeostasis (yeah I know its not the right use of the word) where the wheels match the speed of the treadmill no matter haw much you accelerate the treadmill. If you suddenly decrease the speed of the treadmill to 0 will the plane continue at the speed it was going? and if so could we use this to make the worlds smallest runway?
about 1 year ago
I think you explained this better than mythbuster did.
about 1 year ago
Now do a helicopter on a turntable.
about 1 year ago
I have to be honest, I had a hard time wrapping my mind around the concept until this video. I see now that the only way that a conveyor would keep it stationary is if the pilot forced it to. The only way it wouldn’t fly is if the max force the propeller produced was only enough to overcome the friction. And if that was the case, then the plane wouldn’t fly even without a conveyor!
about 1 year ago
With the exception of the minimal amount of friction increase from bearings heating up, the friction is constant. That treadmill could have been running 100 miles an hour in reverse, and he still wouldn’t have needed to move the stick more than he did.
about 1 year ago
You just didn’t like being proved wrong. Stop being ignorant, and take it in stride.
about 1 year ago
you know what i didn’t i watched for 30-45 seconds and stoped it wrote my comment and left your vid thank you very much!
about 1 year ago
LOL…you watched it though, didn’t you.
about 1 year ago
hey guess what mr person on the vid NOBODY CARES!!!!
about 1 year ago
Oh ok thanks
Surely this concept could be used elsewhere? I just realized it is:
The hover-craft: Barely any friction = Less power needed.
Its cool