The Lee-Tseung Lead Out Theory

[hansvonlieven]

Lawrence:

Please have Forever perform the wheeled chair experiment in her bikini.  This will garner a lot of views and recognition for your theory.  Thank you.

Bill

Maybe we could talk Mingmei into doing it in the buff. That would be even better, though I doubt shruggedatlas would approve.

Hans von Lieven

[chrisC]

Maybe we could talk Mingmei into doing it in the buff. That would be even better, though I doubt shruggedatlas would approve.

Hans von Lieven

Or we can have Lawrence and Gaby hold hands together to perform their Valentine Lead-Out special to celebrate their 'great minds think alike' and behave even more alike!

cheers
chrisC

[shruggedatlas]

However, the flaw with this method is that it works due to friction.  I am able to overcome friction by quickly thrusting forward.  If I then return my body gently to the starting pose, that movement does not overcome friction, so the chair stays in the forward position.  I can then repeat my quick thrust followed by a gentle return to starting form, and thereby travel accross the room as far as I desire.

In space or even in Earth's atmosphere, there is not sufficient friction to allow this to happen.

Sure there is.

So a flying saucer cannot.....

hey hey, you didn't get off the chair remember?

Yes, I did not get off the chair, but the reason it works is that I am first able to bring my upper body forward slowly, then I can thrust forward.

In space, no matter how slowly I bend forward, there is no friction at all, so the lower half of my body would move backward, and no amount of thrusting would push me forward.  Look, just because you can walk on the ground on earth does not mean you can pedal your feet in outer space and achive propulsion.

I did click on links.  Lots of dubious crap and not a single working device.  I could point you to links about leprechauns.  Does not mean they exist.

[Pirate88179]

@ Shruggedatlas:

Well said.

Bill

[ltseung888]

In space or even in Earth's atmosphere, there is not sufficient friction to allow this to happen.

Dear shruggedatlas,

This is actually an intelligent question.  There are two schools of thought amongst the Physicists.  Look at the cartoon diagram of a space ship traveling with constant velocity along a straight line.

One school believed that no matter what type of action might be inside the box (apart form ejecting mass outside the box), the velocity of the space ship would not change.  They based their reasoning on a generalization of Newton?s Third Law.  Some of the rocket scientists actually believed that.

Another school (I happen to be a believer) does not believe in a generalization of Newton?s Third Law in all cases.  The specific example is ?non-rigid body general motion including straight line and circular motion?.  In swinging the chain ball, there should be no effect on the velocity of the space ship ? I also apply Newton?s Third Law so far.  But when the ball is let go and hit one side of the spaceship, I predict that this impact force will change the velocity and/or the direction of the space ship.

The first school argued that the moment you let the chain ball go, there will be an equal and opposite direction pushing you.  The Forever flying water bottle proof of concept experiment is an experimental proof.  Have you done that experiment yet?

If you have not, do it.  Then read 1165 again.  Do not apply Physics Laws in the wrong situation.  You would not do that in law courts.  You should not do that in the Physics Laboratories.