Magnet force shield

[Floor]

On many of these videos, I often find that I have to ues external speakers in order to get enough volume.
This is the easiest solution.  The fault is my own.  I some times, am simply not speaking loudly enough, during
the videos.  External speakers are the only thing you can do.

                     thanks for the comments
                     I will try to remember to speak loud and clear In the future.
                                               floor 

[Floor]

                                                          NOTES ON
                             VARIATIONS IN THE SHIELDING MAGNET ARRAY

In this last video I got the best shielding results to date.  I did this by trying
out various magnets as the shield magnet array.

I swapped various magnets into the various positions until I arrived at a satisfactory
level of shielding effectiveness. I then labeled 3 particularly effective magnets as #1, #2
and #3 for future reference / demonstrations. 

Also, I  labeled two particular magnets for use in the fixed and sliding magnet positions.

Prior to this, inconsistencies in my results were just about giving me fits !

I have found SIGNIFICANT differences in the effectiveness of shielding.....
while using magnets (which although they are of the same shape and size)...
those magnets are of significantly varied strengths from each other.

The variations in the magnet strengths are a consequence of using  inexpensive / off
the shelf magnets.

I have not as of this time, determined what kind of mix and match of shield magnets
is most effective.  In other words... the three magnets used in the shield magnet array
in the last video... are unknown to me in the respects of

are all three magnets of a very similar strength ?
are the two outer most magnet well matched .. while the inner is stronger ?
are the two outer most magnet well matched .. while the inner is weaker ?
and so on ?
                             floor

[gyulasun]

Hi Floor,

I have attached a drawing someone made years ago (unfortunately I do not remember in which yahoo technical mail group he uploaded and who he was, to acknowledge).   He used a Gauss meter to check two ferrite magnets how their field changes at the surface of the magnets at different points and then he let them attract and measure the flux again at the same points and he also placed them facing in repel and checked the flux again. The mechanical sizes for the magnets he used are in the top row. They were magnetized through their thickness.

His measurements also show what you found: two magnets of the same size and type do not have identical strength at all.
I do think that this is also valid for rare earth magnets because magnet manufacturers charge extra cost if someone wants to buy quasi equal strength magnets (albeit still within certain tolerance range).

This means that for such shielding purposes it seems the best (what you also had to do) to select the magnets out of several ones to get satisfactory results and this involves buying several magnets at the cheapest price possible which is probably ebay.com or maybe aliexpress.com   Also, it may be worth building a simple yet useful Gauss meter, especially for comparing magnets, no real need for calibrating for actual Gauss values in this case.   I found this link at random:
https://rimstar.org/science_electronics_projects/diy_gauss_meter_with_digital_display_ba.htm   or another simple circuit:
http://www.coolmagnetman.com/magmeter.htm 

Gyula 

[Floor]

@Gyulasun

        Thanks for the info. and links
                          floor

[Floor]

                                                   A path to over unity with magnets

BELIEVING THAT HUMAN BEINGS CAN DO MOST ANY THING THEY DECIDE TO DO.

                                        HAVING A WILLINGNESS TO LEARN
                                                           AND
                            A general UNWILLINGNESS TO BE INSTRUCTED.

The study of, and arriving at a clear understanding of science's definitions of  energy, work and force
enables one to comprehend the possibility that energy CONVERSIONS might result in an over unity of
mechanical work input to mechanical work output.

Exposure to daring and brilliant minds (such as are some of those present at the OVERUNITY forum), and to
their ideas and to the links to many other internet resources.
....................................................
BIGGER IS NOT ALWAYS BETTER. Working with small / weak magnets allowed direct / hands on contact with and manipulations of magnets.  This along with some precise measurements, allows one to arrive at CLEAR UNDERSTANDINGS of the forces involved and of the directions (vectors) in which those forces act.
....................................................
NOT having the approach toward efficiency as a primary goal.....

leads one away from focusing upon conservation of energy via circular motion, constant motion
or consistent direction of motion, but instead, toward completions of actions before the start of a
next action, start / stop motions, reciprocating actions, right angle and / or near right angle interactions....

Resulting in low speed / high force / small displacement actions in which accelerations are small and therefore also
is there LITTLE OR NO ADVANTAGE gained in arrangements made in order to conserve momentum !

                 These things, and a good woman by your side.

          In the words of Stephan H.  "hmmm"