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-   -   Science Something amazing to tell you concerning physics and motion (https://chiefsplanet.com/BB/showthread.php?t=208580)

Silock 06-04-2009 01:02 PM

Quote:

Originally Posted by bdeg (Post 5816813)
explain to me how it will get off the ground if it can't accelerate in relation to the air

The only way it can't accelerate is if there is no air to push against. The wheels are irrelevant.

Buck 06-04-2009 01:03 PM

Quote:

Originally Posted by Baby Lee (Post 5816795)
You don't gain momentum in a jet by pushing the pavement below you backward, you push the atmosphere behind you backwards.

Unless that treadmill can manipulate the atmosphere, it's irrelevant.

This.

P.S. I know this because it was on Mythbusters the other day.

bdeg 06-04-2009 01:04 PM

Quote:

Originally Posted by Silock (Post 5816841)
The only way it can't accelerate is if there is no air to push against. The wheels are irrelevant.

you are just underestimating this ba tread mill we have here.

it doesn't matter that the plane isn't propelled by the wheels, the wheels are attached to the plane, if the wheels don't move, the plane doesn't move

Buck 06-04-2009 01:04 PM

The plane doesnt use the ground to accelerate like a car does. You are mistaken.

Watch the episode of the Mythbusters.

Silock 06-04-2009 01:05 PM

Quote:

Originally Posted by bdeg (Post 5816849)
i think you guys are just underestimating this ba tread mill we have here.

it doesn't matter that the plane isn't propelled by the wheels, the wheels are attached to the plane, if the wheels don't move, the plane doesn't move

Troooooooooooooollllllllllllllllllllllllllling

bdeg 06-04-2009 01:05 PM

a regular treadmill, sure, i agree

but the one in this question would make a plane unable to liftoff

MagicHef 06-04-2009 01:06 PM

Quote:

Originally Posted by MediaCenterJunkie (Post 5816853)
The plane doesnt use the ground to accelerate like a car does. You are mistaken.

Watch the episode of the Mythbusters.

So, since the wheels are unable to move, are you suggesting that the plane rips its landing gear off?

Buck 06-04-2009 01:06 PM

Quote:

Originally Posted by bdeg (Post 5816849)
you are just underestimating this ba tread mill we have here.

it doesn't matter that the plane isn't propelled by the wheels, the wheels are attached to the plane, if the wheels don't move, the plane doesn't move

Why dont you get it?

The wheels aren't pushing the plane?

The treadmill cannot keep the plane from moving.

The Wheels are not connected to a drivetrain or anything, the wheels are just connected to to some ball bearings or whatever and spin freely.

The propulsion of the plane comes from the air.

A treadmill cannot keep a plane from moving.

bdeg 06-04-2009 01:07 PM

Quote:

Originally Posted by Silock (Post 5816856)
Troooooooooooooollllllllllllllllllllllllllling

i don't even understand what you mean

that i'm being intentionally obnoxious?

Quote:

Originally Posted by MediaCenterJunkie (Post 5816853)
The plane doesnt use the ground to accelerate like a car does. You are mistaken.

Watch the episode of the Mythbusters.

doesn't matter. if everytime the plane moves forward 100 feet in a second, the treadmill moves back 100 feet per second, the plane will not take off.

Buck 06-04-2009 01:08 PM

Lets look at it this way.

If you put a bird on rollerskates and told it to flap its wings to move forward, would the bird not move forward? The wheels would spin, but its using the air to move, not its feet.

Silock 06-04-2009 01:08 PM

Planes without wheels take off all the time.

MagicHef 06-04-2009 01:09 PM

Quote:

Originally Posted by Silock (Post 5816872)
Planes without wheels take off all the time.

It's not a plane without wheels.

bdeg 06-04-2009 01:09 PM

ok, i admit, im high

i understand

the wheel would just spin

damn, of course im beaten to that too

i lose

MagicHef 06-04-2009 01:10 PM

Quote:

Originally Posted by MediaCenterJunkie (Post 5816871)
Lets look at it this way.

If you put a bird on rollerskates and told it to flap its wings to move forward, would the bird not move forward? The wheels would spin, but its using the air to move, not its feet.

Birds don't understand English. Ridiculous scenario.

Silock 06-04-2009 01:10 PM

Quote:

Originally Posted by MagicHef (Post 5816876)
It's not a plane without wheels.

Might as well be.


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