Thanks to supermagnete.com for providing the magnets I used to perform these different configuration of the homopolar Railgun. Here are the magnets used in this video. First Experiment S-15-100-N https://sumag.net/s-15-100-n-x01 Second Experiment S-20-10-N https://sumag.net/s-20-10-n Third Experimet S-06-02-N https://sumag.net/s-06-02-n-e01 cs-s-42-04-n https://sumag.net/cs-s-42-04-n-x01 This is another version of the homopolar motor, in this magnetic experiment use an external energy source to have a greater acceleration effect. The engine is a simple screw with magnets at the ends. The polarity of the magnets is very important. I try to outline the position. S-N iron N-S (With this configuration wheel on one side) N-S iron S-N (With this configuration wheel on the other side) S-N iron S-N (Do Not work) N-S iron N-S (Do Not work) The aluminum foil transmits the current to the motor. The interaction between the magnetic field created by the current and the magnetic field of the neodymium magnets moves quickly the rotor. LIKE & SUBSCRIBE HERE: http://bit.ly/Sub2MagneticGames WATCH MY TOP VIDEOS HERE: http://bit.ly/MagneticGamesTopPlaylist On my channel you will find all the ways to have fun with magnets divided into 3 main categories: Classical magnetic experiments such as magnetic levitation, homopolar motors, small magnetic weapons, Gauss cannons, gears, magnetic field viewers and much more. Satisfaction video like the construction of magnetic sculptures, slime and magnetic putty and product review. ASMR relaxing videos to watch but above all to listen preferably with stereo headphones to be able to appreciate the particular sounds of the magnets About Magnetic Games: All ways to have fun with magnets. The magnetism has always intrigued me. The strength of the magnets is scientifically explainable but there's something "magical" about its interaction with the world. My Channel offers you curious experiments and fun games to do with magnets. #magneticgames #magnets