Very practical magnetic asymmetry

[dieter]

Just something to think about. I have to say, even although I think this is explained by the distribution of force over a longer way, in a very practical way, from the point of view of a human being, this is clearly an asymmetric  feature. If I compare the force required this way and the direct way, to just lift it off. This tremendous attraction may accellerate a greater mass I think. It may have something to do with the twist and the arc shape of the field.

[geenee]

make asymmetry magnetic.from James Roney Stators(youtube).

http://www.youtube.com/watch?v=-Aqu9f1KbqE

http://www.modvid.com/play/Energy__Unsorted/Part_2_One_Way_Magnetic_Shielding_The_Holy_Grail__The_Secret_Revealed__Part_2

[dieter]

You're comparing apples and oranges...


I highly respect James Roney's efforts and that he explained how it's made, but...


He says he cuts off the magnetic field at a certain position, but in fact he just shields it, aka redirects it and compresses it in the inner sheetmetal layer. You cannot cut off a magnet field. Shielding will not cut off a single fieldline, and each fieldline is a closed loop. The attracted object wants to reach the point of highest fieldline density (besides to align its shape to support the field axis), and when it reached this point of max fieldline density (usually a pole), it had to penetrate a certain exact number of field lines. To be removed from the attractor means to go back trough the same number of lines, where it does not matter (and that's the point) how dense these lines now are! The formula of "a magnetfield is getting weaker in square with the distance' is not valid when shielding is used, nonetheless, the number of field lines is the same, be it in 2 inch air or in a 1/16 inch iron shield. And what goes bejond the lines, must come out of the lines, unless there's a button to turn off the field...
101 magnet theory, that needs to be understood.


But indeed, there is more. Like, when the polarity suddently changes, then this rule is broken.

[nwman]

One of the tricky illusions of magnets if how much work is done to attract and pull away magnets in different directions respectively. In simplest terms you always have to physically test the magnets interactions. The equations of attracting magnets is only for magnets with opposite poles aligned. If you change the angles then the equation is no longer is correct and is difficult to calculate. You have to test and measure.  You have to use the basic Work = Force x Distance.


So if two magnets are attracting N-to-S then the equations is "close to" the basic inverse square law. Thus the attraction gets stronger in a nice exponential curve as they approach each other. Figure 1


However, if you then try to remove the magnets by sliding them apart at a 90 degree angle it seems like it takes half the force needed to slide them off...... Well, that is true*. It does take half* the force. Figure 2. But the force is only half the battle... equations. The other half is distance. As you pull the magnets apart the force needed increases until the halfway point of both magnets when it reaches it's strongest. Then it ramps down quickly.


Figure 3 shows both force vs. distance graphs overlapped. If you add together both the "areas" of both curves you "should" come out with equal numbers. Thus showing the same amount of work has been done. Just under different conditions.


That is the theory at least.


I'm currently working on retesting some data the shows more work is actually needed to slide magnets apart at 90 degrees then is needed to pull them apart at zero degrees (straight apart). It seems backwards but I physically tested the below arrangement with "different shaped" magnets. I plotted the data and found (in simplest terms) that if two magnets attracting at zero degrees and generated 1 unit of Work it would take 1.55 units of Work to slide them apart at 90 degrees. Thus, if you were to revers the action and have the magnets attract at 90 degree (creating 1.55 units of work),  and only 1 unit of work to pull them apart at zero degrees then you end up with .55 units of work OU! (NOTE: magnets never touch so no friction when sliding.)


I have to be over looking something.

[nwman]

Sorry, I made the graph wrong. This is more like what I found with two .5" square neo magnets.