There is nothing in that link that talks about maximum power theorem (MPT). MPT simply means that if your amplifier has an internal impedance of 4 ohms, then you'll get maximum power transfered to your speaker if your speaker has an impedance of 4 ohms.
There is no work for me to do. THere is nothing to accept. Maximum Power Theorem has nothing to do with anything we're talking about here.
And there's nothing in that link that says if you extract power from the difference beween wind and groudn that you can't use that power to go faster than the wind. Matching speaker impedances doesn't mean you can't go faster than teh wind.
I pointed out several places were I admit I was wrong.
If you google "Maximum power theorem", you will find numerous websites with that exact phrase in it describign exactly what I'm describing. You prove me wrong by providing a link that doesn't even talk about "maximum power theorem".
One page is on wikipedia, it describes exactly what I'm talking about.
http://en.wikipedia.org/wiki/Maximum_power_theorem
You used a specific term to mean something it didn't. That's all.
If you said 2+2=5, I'd expect you to admit it was a mistake.
So, the only inertial frame is one that doesn't require acceleration to get to?
That doesn't even make sense. An inertial frame is any frame moving at fixed velocity. You could have a frame movign at 0 mph over the ground, or a frame moving at 10 mph over the ground. Both are inertial frames. To get from one frame to the other, you would have to accelerate, but that doesn't mean they're not inertial frames.
teh standard example of inertial frame is to calculate teh trajectory of an artillery piece fired from a stationary position, then put the gun on a train, have the train move at a constant velocity, and fire the gun from the train. If the gun has radar to track its own shell, it will track the same trajectory on the ground or on the train.
On the ground with no wind, or on a train moving at 10 mph wtih a 10 mph tailwind are exactly the same for the gun.
on the ground with a 10 mph tailwind or moving at 10 mph with no wind are exactly the same for the gun.
YOu can only extract power if there is a difference, humber. YOu cannot extract power from 500 degree air if your machine adn all its components are also 500 degrees and you have no access to anything but 500 degree air.
you cannot extract power from teh wind if you're floating on the wind in a balloon at the same speed as the wind.
You can only extract power from the wind by tying it to something that isn't moving with the wind, liek the ground. The cart does that by gearing the prop to the wheel. As long as the air over the prop is different than the ground under the wheel, the cart can extract power, regardless of how fast the cart is moving.
And yes, you can extract power from the ground, if you're in a car moving at 50 mph and you need to slow down.
wait. you just changed the subject here.
You said the treadmill in still air isn't equivalent to being on the ground with a tailwind. That the cart on the treadmill doesn't prove that the cart works on teh ground.
The reason you don't see windmills on tracks is because it takes power to move a track. from newtonian mechanics point of view, inertial frames are equivalent. But now you're talking about whats the best place to generate power, not whether the inertial frames are equivalent.
