Micro Gauss Rifle





Introduction: Micro Gauss Rifle

A tiny gauss rifle built from only a few strong magnets. (It's not a coil or rail gun since its got no electromagnets, so I went with gauss rifle.)

Step 1: Acquire Magnets

You will want some strong rare earth (Neodymium) magnets of two sizes. The larger size should be a ring magnet. The smaller magnet can be a ring or cylinder, and should fit snuggly into the first one. You can actually stack together several magnets, but single cylinders might work better.

I get my rare earth magnets from http://www.kjmagnetics.com/

Step 2: Arrange Magnets

Place the smaller magnet(s) end to end with the larger ring magnet(s). It should attract end to end but be off center as shown. If you attempt to join the magnets at the wrong ends, they will repel. (Although if you try really hard you can get the smaller ones stuck in the bigger. That's not what you want to do.)

Step 3: Load Rifle

Load the rifle by forcing the smaller magnet(s) into the larger. It will go in, but may take some work. Ideally you'll have some of the smaller magnet(s) sticking out both ends, as shown. This is the locked and loaded (and potentially dangerous) state. Be careful.

You'll want to make sure the inner magnet(s) fit into the outer. It should be a snug fit, not loose. It should also not be so tight that it can't shoot back out.

Step 4: Fire!

Holding the rifle by its sides, point one flat end at a nice, soft, non-living target. The Neodymium magnets are fragile and will break, plus they can hurt people so be really careful.

Firmly push the inner magnet(s) into the outer and it should pop out the other end with greater force.



    • Science of Cooking

      Science of Cooking
    • Pro Tips Challenge

      Pro Tips Challenge
    • Pocket-Sized Contest

      Pocket-Sized Contest

    We have a be nice policy.
    Please be positive and constructive.




    another sorce for magnets is www.leevally.com

    no more

    some form of RAIL GUNZ FTW!!!

    um sorry to burst your bubble, dude 'but magnets, no matter how strong, never, and i mean never, keep their polairity forever.''

    true, but it would last a really really long time.

    Actually this would not work at all in order to cause the magnet to go far enough into the other magnets field to be repelled by it you would need to give the magnet more force than the other magnet was capable of producing other wise the magnet would simply repel the other magnet back before it could pass through and be propelled to the next magnet in line. it may work for a while the initial force you give it but eventually the extra bit of energy required to pass through each magnet will stop it. Perpetual motions machines are never going to work because of the fact that energy is always lost. The second law of Thermodynamics states that entropy is always increasing and if you were to build a machine capable of perpetual motion you would be breaking that very law. so unless you plan on rewriting the laws of Thermodynamics then perpetual motion machines are not realistic. 

    “The law that entropy always increases, holds, I think, the supreme position among the laws of Nature. If someone points out to you that your pet theory of the universe is in disagreement with Maxwell's equations — then so much the worse for Maxwell's equations. If it is found to be contradicted by observation — well, these experimentalists do bungle things sometimes. But if your theory is found to be against the second law of thermodynamics I can give you no hope; there is nothing for it but to collapse in deepest humiliation.” — Sir Arthur Stanley Eddington, The Nature of the Physical World (1927)

    True, but if you gave it a large enough initial force, it would continue for a very long time and quite possible generate power for longer than a human live.

    Hypothetically but in order to make electrical energy you would need to somehow harness the kinetic energy and since nothing is 100% efficient it would slow it down faster, and unless you gave it a crazy amount of initial force it would have to generate only a trickle of energy other wise it would stop to quickly to be useful.

    I mean get it up to the speed of light fast and unstoppably hard. Then it would move forever and generate energy forever. If it decided to go in a circle around a large electromagnetic coil, that is.

    it's impossible to make it go the speed of light. Because it would (according to law) grow ever more heavier and heavier so your device will explode/implode.