hascoolnickname wrote:Yes, and the laws of physics say that it cannot lift off because there is not any lift on the wings other than a slight breeze that would be present. The energy is making the plane go forward, but as you stated in your first post the treadmill or other contraption that it is on is going fast enough to match the speed, making it not have any net movement. Energy is being expended.Potter wrote: think about it. millions ogf pounds of thrust and the plane is stationary, law of physics, where the hell is all that energy going?
Let me relate it to something you are more familiar with: If you're on a treadmill with a bike pedaling and the treadmill is matching your speed you wouldn't go anywhere. Now you don't have a jet engine, but you are pedaling. You aren't attempting to fly, but you still wont move forward.
If there is some way that anyone knows of for a plane to take off without any lift then post it. Otherwise: not probable(maybe possible, I've never taken a physics class so I'm not in the know).
thats where you just proved yourself wrong is so many ways. Bikes are POWERED through the pedals, so the rolling movement is absorbed on the treadmill. slap a jetpack on me, what do you think will happen? my wheels spin faster without me moving at all? no, I shoto the fuck off the treadmill and hurt myself liek a mofo. Planes are powered through the jets, not the wheels. they are FREEROLLING, and just there to suspend the plane. The plane will move forward. its simple. One million pounds of thrust versus like 1 pound of friction in the wheels. think about it: if they are freerolling, you can push them or pul them in any direction you want, without resistance. unless you put the brakes on, your set to get up to 100000 mph. if your seriously suggesting that a Rolls Royce het engine can sit on an airplane, put around 5 million pounds of forward force on an airplane chassis, but somehow put all of this force into a black hole and let the jet be stationary, then GREAT SCOTT! WEVE DISCOVERED A NEW LAW OF PHYSICS!
HOHKAY. thnik about it this way. This should simplify everything for everybody.
Imagine you have a treadmill that is vertical. wre will replace the force of the thrusters with the force of gravity. a plane, or anything with wheels for that matter, lets say a toy car is on it. lets just say that it will not fall to the side or anything for hypothetical purposes. gravity (the jets) will want to pull it downwards, turning the wheels. but the treadmil is designed to match the speed of the wheels, in reverse, puling it up. But the wheels are FREEROLLING, making it fall straight down. Just think about it. you think the rolling treadmill will cancel out the force of gravity (the jets) and let the car float in one spot, not falling down? no. since the wheels are freerolling, it will roll straight down. Think about it. if the force of gravity vould be canceled and somehow turned into the constant spinning of floating wheels, we would nevr need another energy source, ever.
woh black betty. BAM ba LAM
