Hello! I have a deeply magnetizing question. I have an attractive magnetic assembly and I am interested in finding some forces, acting on its parts. Set-up details ( if to be specific ): I have two cylinder-shaped neo magnets with identical dimensions and properties, such as residual induction, dimensions, mass, etc. I fix both of 'em as shown in the attachment A1.gif below. M1 is fixed on the ground, M2 can only move thru Y-axis. M2 is attracted by gravity, but hangs in the air because of the repulsive force between those two. Target: I have to find the net force in Newton units, acting on M2, thus it's being fixed in its levitated state and doesn't move. The sticky point is that I want to design a magnet, which will hold another one at certain air gap, but for this purpose a horse, pardon, a force value needed. What I do know: I know nothin' about it, as the school project has just begun; this is my first week with permanent magnets. So my questions to you: • Could you provide me with any ( specific ) guidelines for further reading? Google did not help me a lot in this case. • or, could you give me some kind of hint for the strategy of calculation, which I should follow? • How the Magnetic Flux Density ( induction ) of a given magnet does relate to the resulting force? • I have gotten a link to so-called "magnetic moment" or torque as a force expression, but it just doesn't make sense, I am not sure it's what I need. Is it? I’m totally lost in this forest. Any help would be appreciated.. ..even if there are no threes. Lyric notes: When I’m talking about induction, I visualize the following calculation in my mind: see att. A2.gif The purpose of this project is to develop ( OK, to try to develop ) a magnetic ( frictionless ) bearing for the windmill. It is interesting to check – will it work or will it not do so.