The Lee-Tseung Lead Out Theory

[utilitarian]

The idea that the string holds no energy and does no work is laughable. Stopping the bob from dropping is requiring a constant (mG) amount of force to be applied, resisting the force pulling the bob down further. An equal amount of force is also being applied on the mounting point side of string, stopping the string from being pulled down by the bob. Since we hold 2 things together via mechanical force and say that no work is being done, we are doomed to view things that way.

The string lifting the bob is work. yes? Horizontal force was used to load the system up with energy, but the result of that force on its own accord, would only have moved the bob horizontally. The energy transfer systems at play within the pendulum allowed some horizontal force to be converted into vertical force.

I think you need to study up some more, buster.  You start out correct, and then swiftly fall over the cliff of wrong wrong wrong. 

The string does no work at all.  Work equals force times distance.  Now, you may think, hey, the pendulum bob is moving, that is distance, right?  Wrong.  The string can only do work in one direction, by pulling.  Since the ball never gets any closer to the center, the string never does any work.

Confusing?  Consider a pencil with a rubber band stretched around it, longways.  There is force on both ends of the pencil, perhaps alot of force, depending on the tautness of the rubber band.  You put this pencil and band down and leave it there for a week.  You come back, and wouldn't you know it, the band is still around the pencil!  How much work has the pencil done that week?  Yes, my friend, it is zero.  Even though it withstood a force for a week, it has done no actual work.  If you take the pencil and shake it around and throw it up and twirl it and catch it, it has still done zero work.  Your arm has done work, but the pencil has done no work.  If the pencil could somehow stretch its length on its own, and thereby work against the band, now it has done work, but not until then.

Similarly, replace the pendulum string in your mind with a rod.  I withstands forces from both directions, but never does any work.  It rotates about when the pendulum bob is pushed, and if we assign it a mass, the bob actually does work on it!

By the way, Tseung's entire principle is based on this faulty premise that the string somehow does work, so I hope it is clear now how goofy that principle is.

And by the way, your comment about why a purportedly 150% overunity pendulum should stop makes no sense either.  When the bob hits the maximum point, it does not somehow magically "lose" all this excess energy.  If it had any surplus kinetic energy, this would have resulted in the bob rising higher on each swing.  There is nowhere for this surplus energy to go except to be converted into potential gravitational energy.

I hope that was gentle enough for you.

[Pirate88179]

Lawrence:

I think cap-Z-ro is correct.  That group shot you have that includes the translator shows men of normal height.  The podium shot of the head would have to belong to someone about 1.5 feet shorter than the man at the podium.  I saw no such height difference in the group shot.

Bill

[utilitarian]

Lawrence:

I think cap-Z-ro is correct.  That group shot you have that includes the translator shows men of normal height.  The podium shot of the head would have to belong to someone about 1.5 feet shorter than the man at the podium.  I saw no such height difference in the group shot.

Bill

Nah, photo is legit.  It is just the angle of the shot that makes the gentleman on the left look shorter.  Please, this is how the moon landing conspiracies get started. 

[Cap-Z-ro]

Once again, to my chagrin,  I have clearly demonstrated that comedy is a dangerous business. *sighs*

Regards...

[ltseung888]

By the way, Tseung's entire principle is based on this faulty premise that the string somehow does work, so I hope it is clear now how goofy that principle is.

Dear utilitarian,

You raised a very good point.  Many people also thought that the string could do no work if it is not stretched or shortened.  If the pendulum bob is just hanging, the string will do no work (correct).  If the pendulum bob is pulled to a new position and if the string is not stretched or shortened, the string will do no work (incorrect).  Work is done during the moving.

For a vigorously trained Physicist, a force can be resolved into two components.  The most common is resolving it into the horizontal and vertical component.  We can then examine each component and see if it does any work.

The string is at an angle.  So the tension (a force) can be resolved into the vertical and the horizontal components. 

Focus on the bob, there is both vertical and horizontal displacement when it is pulled by the First Lee-Tseung pull.  This means that it has both vertical and horizontal displacement (from the starting vertical position).

In Physics and in Vector Mathematics, we can treat the vertical and horizontal components separately and combine them afterwards. 

Thus there is positive work done by the vertical component of the string as the vertical direction of the tension and the displacement are the same.  There is negative work by the horizontal component of the string as its direction is opposite to that of displacement.

The above description can be double checked and verified by almost all top Physics Professors and textbooks.  Please review this section of Physics and Vector Mathematics.  I welcome your further comments.  It will help all.