Magnets, motion and measurement

[Floor]

Videos of some of these magnet interactions.



https://overunity.com/18137/newtons-magnets/msg544070/#msg544070

    floor

[Floor]

@ all readers

I have been "informed" on very numerous occasions that "there is no such thing as a magnetic shield".

Please tell this to the Magnetic Shield Corporation, as they have been (apparently erroneously)
in the business of manufacturing and selling magnetic shielding for about 80 years.  Look em up !

What is shielding in general, and in specific what are some of the kinds of, and ways in which various kind of shielding perform their function ?

Lets look at one type.

For many centuries, in some parts of the world, individuals have demonstrated a kind of shielding as performance art. It is as follows.  Performer #1 (typically of large stature and physical strength) lies on his back upon the ground.  A large / thick / broad / flat stone is placed upon his chest.  The stone typically has a weight of  some where around 80 or 100 pounds.

While performer #1 holds the stone from rocking and / or sliding from its place, a second performer (performer #2) strikes the stone fiercely and repeatedly with a 6 or 8 pound sledge hammer, until the stone is split into two or more pieces.  Performer #1 is unharmed.

What is happening.

1. We commonly say the stone has absorbed most of the impact, but this is a vagary. It gives no understanding of the how and why this works.

The stone has a large mass as compared to the sledge hammer.  The kinetic energy of the lighter and fast moving sledge hammer is transformed into a slow moving / short distance travel, of the stone.

   In other words high speed / low mass, is traded for large mass slower speed / less travel distance.

Upon the hammers striking of the stone, the kinetic energy in the hammer is transferred to the stone. The same kinetic energy that was present in the hammer is then present in the stone.  But that kinetic energy is also transformed in its ratio of mass to speed.  Greater mass with a lesser speed.  Lesser speed over a given duration of the event, results in a lesser distance traveled by the stone, than would have been traveled by a stone of a mass equal to that of the sledge hammer.

2.  The energy present as the momentum of the sledge hammer is spread over the large surface area of contact, between performer #1's chest and the stone.
                                           In other words the force is redistributed.
Is this over unity ?   No.

There are aspects to and / or kinds of shielding, for example padding lengthens the time duration of an impact while also decreasing peak force.  Stretch / elasticity, when an object's fall is arrested by a rope  lengthens the time duration of an impact while also decreasing peak force and so on.
..............................................



continued

The magnetic force shielding methods presented have some characteristics in common with the sledge hammer and stone slab example.

The stone slab has a broad surface area against performer #1's chest, and a large amount of inertia due to its mass.  The force is DISTRIBUTED over a large area.

A force shielding magnet redirects various of the magnetic forces to act at right angles,  causing those force to be against the track or rail elements of the devices rather than against input energy / forces.

The force is placed upon the sliding tracks.  It is DISTRIBUTED in such a manner that it cannot cause motion of the magnets.  No motion equals no kinetic energy transfer / expenditure.  But also the magnets can be moved along their tracks with out work against magnetic forces because those motions are at right angles to those magnetic forces.

The magnet force shielding differs in many and considerable ways from the stone and hammer example.  Rather than inertia acting in a major way, in the magnet interactions.  It is the interconnections of the magnets via the track elements of the devices which transform and limit the transfer of the kinetic energy in terms of  direction, distance and ratio of force to displacement.

In other words the magnet are bound / limited in their motions to specific directions by the tracks, but also, the tracks are rigidly connected to each other. This rigid contentedness, in a manner of speaking, takes the place of  the inertia aspect of the stone slab / hammer example.

There is then also that aspect present in magnet interactions which is not at all present in the hammer / stone example.  Near balance of magnetic attraction with magnetic repulsion.  This aspect in combination with the force per distance transformations and force redirecting allows for a variety of very effective magnetic force neutralizations and shieldings. The results of which can be dramatic Over  Unity.

For a greater understanding of the subjects and if you wish, watch the videos or study the drawings.

             best wishes
                  floor
Videos of some of these magnet interactions.



https://overunity.com/18137/newtons-magnets/msg544070/#msg544070

    floor

[ayeaye]

What is shielding in general, and in specific what are some of the kinds of, and ways in which various kind of shielding perform their function ?

Oh, you think that you push all into obscurity by asking what shielding is. No. Shielding is making magnetic field more asymmetric in a certain way, using the asymmetry (non-Coulomb irregularity) in the magnetic materials that there already is.

[Floor]

Oh that's it eye eye. I'm telling my mom !
You're in big trouble now !

    floor

[ayeaye]

Oh that's it eye eye. I'm telling my mom !

If you want, but don't talk to Stefan, he has difficult times now.