I'm sorry to say that your idea has been tried before, Pioneer0333. Magnets will not produce free energy. They are very good at transferring energy, but they do not magically create energy.<br /><br />For instance, if you have the magnets moving, so their magnetic fields move as well, they will create motion in the rod. But it's not free energy. Something has to move the magnets -- or move their magnetic field. The latter is far more common. With an electromagnet, you can move the magnetic field just by adjusting the current. So electrical energy can be converted into kinetic energy this way. This is the basic principle behind all electric motors.<br /><br />But not only is not free energy, it loses energy. You put in x amount of work (in the form of electricity) and x amount comes out -- but only some of it comes out in the rotation of the rod. The rest is lost to heat and friction and electrical resistence. A perfectly efficient motor is just as much of a holy grail as the free energy machine. But despite a lot of effort to try to build one, none has ever been produced.<br /><br />The fundamental problem is that your system will never be ideal, no matter how much money you spend on powerful ferromagnets. It will lose energy somewhere along the line. Even the ambient air will sap energy from it (by producing aerodynamic drag), as will the Earth's magnetic field (by tugging gently on the magnets). There are ways to reduce friction: lubricants such as WD-40, or more sophisticated concepts such as electromagnetic levitation.<br /><br />Maglevs are so efficient because they have almost zero drag from the track itself. They still must face other forms of drag, but the track makes most of the drag on a train, so it's a huge energy savings. The drawback is that the magnetic levitation itself consumes an enormous amount of energy. For it to be financially viable, the cost of levitating the train has to be offset by the greater capacity -- and ticket sales -- the <div class="Discussion_UserSignature"> <p> </p><p><font color="#666699"><em>"People assume that time is a strict progression of cause to effect, but actually from a non-linear, non-subjective viewpoint it's more like a big ball of wibbly wobbly . . . timey wimey . . . stuff."</em> -- The Tenth Doctor, "Blink"</font></p> </div>