How to make a Gauss cannon

The magnetic accelerator or Gauss cannonis an invention that consists of making a metallic ball be shot using the power of a powerful field, which takes this ball through a winding. Today, we will see how to make a Gauss cannonThis is an interesting variant of traditional magnetic accelerators, which are quite complex and require a huge amount of energy.



- 4 powerful magnets, preferably Boron-Neodymium (as used by games such as Geomax).

- A smooth wooden surface about 50 cm long.

- 9 steel balls.

- Adhesive tape.

Assembly of our Gauss cannon

The assembly of our Gauss cannon is quite simple: on the wooden surface, we place the magnets with a distance between them of about 4 times the diameter of the steel balls we are going to use.

We place the magnets with their poles alternating and fix them to the wooden base with adhesive tape. Make sure that the axes of the magnets are at the same height, so that the electromagnetic fields are perfectly aligned and provide a better accelerator effect.

Preparing the Gauss cannon for use

Once the assembly of our Gauss cannonNow it's time to set it in motion and carry out our first experiments and shots. To do this, we are going to take 8 steel balls and place them in pairs at one end of each of the magnets, preparing the device for firing.

Now, we place the remaining steel ball near the first magnet and release it to induce it to approach the first magnet, and we will see how the last steel ball shoots out with a much higher speed than the first steel ball.

How it works

This device uses two fundamental principles of physics, one is magnetism and the other is the transfer of energy through collisions. When the first steel ball is induced to move, the magnetic field accelerates its movement towards the magnet, thus, when it collides with the magnet, it transmits kinetic energy which is harnessed by the balls at the other end of the magnet to shoot out.

The ball that shoots out is accelerated even more by the magnetic field of the second magnet, thus increasing the kinetic energy of the balls until we reach the last one, which will shoot out with a kinetic energy much higher than the initial one.

4 thoughts on “Cómo hacer un cañón de Gauss”

  1. if the system is created circular, it would be flawed by the deflection and that would reduce the firing force, at least that's what I think.

  2. One thing comes to my mind: if this system of collisions were made to circulate, wouldn't it be a kind of energy multiplier or something like that? because the balls would go harder and harder, although it seems to me that it's getting out of hand...

  3. A photo of the finished cannon or a working video would add the finishing touch to the post.

  4. Great post! I have assembled it and it works fine 🙂 but the problem is that the magnets I have are of a cheap brand, they are not geomag. For it to work perfectly they have to be very strong ones like geomag.

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