Deleted
Deleted Member
Posts: 0
|
Post by Deleted on Oct 5, 2011 21:09:49 GMT
Been curious about this one lately: When I was very young ,The first time I learned of magnetizing steel (or ferrous metal) by rubbing other ferrous metal over it repeatedly , was from a story (My older brother told) that the "Knights" used to magnatize their swords that way, so when they contacted another sword it would be easier to disarm the opponent. ( )... Myth or not, Usefull or not, I wonder? Seems such an easy concept probably even the ancient smiths would have noticed it. It's an easy technique for building a compass to magnatize a needle or wire and float it in a cork in water as well. Although usually it's said naturally magnetic lode-stones were used by Vikings etc. I suppose it would be useful for a "sword breaker" dagger, but that would require probably a bunch of modern neodymium magnets (which by the way I'm designing my leather shoulder scabbard so the tip will be enclosed but the sides will probably be a row of these in the leather so it can be yanked free without the noise of snaps or velcro)... Funny I remebered at the time I heard this one, I was very young and my oldest brother was in a phase where the neighborhood boys were cutting out wooden shields and padded "swords" and "lances" and pugil stick type stuff...Real brawls sometimes ensued. Back then there were no airsoft or paintball guns either, and they also used to wear winter coats, multiple pants, and swim goggles, etc. and go in the woods and shoot each other with BB guns! :shock: :lol: Thanks for any thoughts or information on this one. Dang! I'm out of time online for now.
|
|
|
Post by LastGodslayer on Oct 5, 2011 21:29:09 GMT
Well, I don't know about historical magnetized swords, but I don't think it would work... It won't take several neodymium magnets for the scabbard. Heck, I'd just go protosaber on it, and would just turn the entire blade into an electromagnet! Few loops of copper over the ricasso and voilá! As for disarming opponents... One problem I see is the presence of large amounts of chain mail and armor all around me. Just moving my sword might be problematic if had a strong magnetic field. Another problem I see with this, is that having another blade clinging to your own would be just of an disadvantage to you as to the other guy of course, you were the only one expecting it, but still...). And then there is the problem of avoiding arrows. Even if the field increased odd of me getting his by a stray arrow by 0.01%, I'm pretty sure most armies shot 1000+ arrows into the air, and those are bad enough odds as it is. It does seem like a good concept if you had some sort of control over the magnetism (like in an electromagnet).
|
|
|
Post by Dave(utilityslave) on Oct 5, 2011 22:01:50 GMT
Hmmmmmm........even if you could get the molecular alighnment necessary to make a blade magnetic enough to attract another blade enough to help with a disarming move, the magnetic quality of the blade would lessen drastically each time you struck it against a target. In order to create a blade that was magnetically stable it would need to be crafted from a rare earth magnetic material which is generally too brittle for such an application or have a blade that plugs into a power supply (electromagnet).
If you magnetize a screwdriver then need to demagnetize it, you just have to strike it against a hard surface to misalign the atoms in it to cancel its magnetic field. Heating it has the same affect as increased temperature randomly excites molecules in a material. Randomly aligned molecules equals little to no magnetism.
There's always Magic! lol
|
|
|
Post by Lonely Wolf Forge on Oct 6, 2011 2:52:15 GMT
i was going to build a magnetised shoulder scabbard as homage to the old RPG games where the heros sword floated on his back at the ready, however, not matter how powerful the magnet is, the sword can come off, if your running or anything it will move around and can slide right off the magnet. If its weak enough for you to pull it free with your hands, its weak enough to fall of if you run or fall down with it, though i considered a magnet as a supplement to an existing rig. as for magnetised sword for disarmament, i call BS on whoever told you the story
|
|
SeanF
Member
Posts: 1,293
|
Post by SeanF on Oct 6, 2011 5:39:09 GMT
Unless you make an electro-magnet sword mount.
|
|
|
Post by Vincent Dolan on Oct 6, 2011 6:37:17 GMT
Not exactly what I was expecting when I first saw the title of this thread. I was thinking Rurouni Kenshin, wherein an antagonist during the Jinchu arc had a magnetized sword that he used in conjunction with a mass of iron powder; the idea was, you throw iron powder onto the opponent, the magnetic sword is attracted to the powder, and voila! No matter how sempriniesque the swordsman, he'll always hit. Plus, if I remember right, the actual sword itself was only being magnetized by the sheath, which itself had magnets inside.
Mind you, it's far from realistic (at least, as far as I know), but it sounds good and it makes for an interesting plot device.
|
|
SeanF
Member
Posts: 1,293
|
Post by SeanF on Oct 6, 2011 11:26:58 GMT
I can't imagine cutting through people covered in Iron dust would be great for edge retention.
|
|
|
Post by Vincent Dolan on Oct 6, 2011 12:02:53 GMT
Well, if you only needed one shot to kill almost every opponent, you wouldn't need to worry over much about your edge, now would you? :lol:
|
|
TomK
Member
Senior Forumite
Posts: 2,377
|
Post by TomK on Oct 6, 2011 18:02:56 GMT
ok guys, WOW have we got a doozy here. I am quite sure that historically there may have been blades that carried a weak magnetic field by co-incidence. however, in the middle ages the materials they had to make magnets with would have only yielded very weak magnetic fields insufficient to be of any kind of benefit. sure it's a fun idea especially for situations where magic can play a part but in reality it just doesn't work. I'm an electrician and I have always been interested in magnetism so I have played around with all manner of electro-magnets and rare earth magnets, which brings me to my next point: if you are considering using Neodymium Magnets in conjunction with a sword in any way I want you to STOP AND THINK! I'm not saying don't do it, I'm just saying "be extraordinarily careful and seek profession assistance with understanding these magnets." I recently had a neodymium magnet about the size of a hockey puck that had a pull force of 274 pounds. it was a gift to me from a friend, I'm not silly enough to buy myself one of these, but let me regale you with some "cautionary tales of neodymium magnets."
first of all the magnet I had was not the strongest rating so there are neodymium magnets out there that are smaller and are just as strong or stronger.
once one of these magnets sticks to something it can be extremely hard to move or take off. higher grade steel such as carbon steel stick harder to magnets than lower grade steel or stainless (some stainless WILL stick some won't). also the thicker the steel the better it tends to stick. this means that most swords are going to stick to these magnets like nobody's business. I had my magnet on the fridge and was a few feet (yes FEET) away swinging a new sword around a bit to get a feel for it when the blade suddenly surged to my right and stuck hard on that magnet. it was about 2.5 feet away from the magnet when it veered. when I tried to pull the sword off the magnet I only was able to pull the magnet off the fridge. this magnet normally required me to grab it with two hands and pull with my body weight to unstick it from stuff. this was by far the hardest stick it had ever done and I was worried about safely removing it from the sword. after all if I'm in the process of taking the magnet off and the sword jumps toward the magnet and happens to turn a little then I have 274 pounds of pressure behind a sharp (tom sharp in this case) edge trying to go through my hand. this made me a bit nervous, ok more than a bit. normally the easiest way to get a strong magnet off something is to slide it sideways off the edge. no way was I doing that with a sword, I love each and every one of my fingers and want to keep them with me always. I ended up clamping the sword to a table with 5 heavy duty clamps before I finally pulled that magnet off.
the next day I was on the phone with the guy who gave it to me telling him some of the funny stories about the magnet ans what happened with it so far. as I was talking to him I picked the magnet up and brought it about a foot and a half from my cell phone. and the call was over. done. the magnet hung up the phone. it also scrambled and corrupted most of the data on the memory chip. fortunately it did not erase or mess up the data that made the phone work.
so another day I had the magnet in my pocket (on the opposite side of my body from my wallet and phone) when I walked too close to a steel wall and got pulled up against it. it was easy to remove myself from the wall but it sure made me look funny randomly and suddenly staggering into a wall and then having to pry myself off it.
the sheer force with which these magnets hit things can break fingers (or in the case of really big ones break arms or legs or worse) and even if you manage to avoid getting your precious digits mashed there is always the chance that the magnet or the thing it hits shatters and as strange as it seem there's still always some shrapnel that gets away from the magnetic field and flies out. in fact sometimes broken magnet pieces find a broken magnet piece of the same polarity which causes the piece to accelerate away from the magnet instead of being drawn towards it.
I have more stories, but the point is that neodymium magnets can be stupidly powerful and they can hurt you and your electronics. they are a real pain in the butt to own as they can damage electronics from several feet away. seriously look around your house and see where you could put something that it would always be at least 5 feet from any ferrous metal and/or electronics of any kind.
please be careful
|
|
|
Post by Hiroshi on Oct 9, 2011 20:44:31 GMT
I love Tom's magnet stories. Always a good laugh!
|
|
|
Post by MOK on Oct 12, 2011 10:57:03 GMT
You know, I think a rapier or such with a strong electro-magnet built in could be of some utility, especially if you could switch it on and off at will - maybe some sort of trigger on the grip. It would make maintaining blade contact very easy while still allowing the blades to slide along each other, could possibly be useful for certain disarms, and would generally freak out any opponent not aware of it.
Maybe.
Or it might just be awkward as all hell, liable to break down and/or end up zapping you...
|
|
TomK
Member
Senior Forumite
Posts: 2,377
|
Post by TomK on Oct 13, 2011 1:44:03 GMT
the last. at least until such time as we get some new technology.
|
|
Deleted
Deleted Member
Posts: 0
|
Post by Deleted on Oct 17, 2011 19:48:48 GMT
Yeah , it's some stuff to "chew on" ... Thanks for the replies I have some (little) time so I'll send you folks Karma now (just for the F*CK of it! ) I think highly magnetized would defeat the purpose of evading armored spots since it would stick to the armor. The trouble of attaching an electro-magnet ...might as well attach a (something else)... If a hollow tube was run up the blade a conductive gas could be sprayed through it and lightning from a telsla coil would follow the gas...Or an internal LED light, Laser, and pepper spray ...DANG, might as well have the magnet too ...IDK. Anything's possible all it takes is Imagination I suppose. ... I drank too much last night, then before dawn I drank some more and got up dizzy today...wife was acting stupid so I drank some more...Hate that. Karma sent soon (because I CAN )... Oh , I liked Tom's reply the best By the Way. (Might PM about some other magnetic projects I have in mind!)
|
|
|
Post by Miked45 on Dec 30, 2019 17:55:58 GMT
So maybe not magnetic in the sense it will attracted other metals, but wouldn’t it not be feasible to create a sword or any melee weapons with a magnetic repulsing feature. Would it even be possible to create a magnetic substance that repels metal in general? Because if so it would even play havoc with these rail weapons being made?
|
|
|
Post by MOK on Dec 30, 2019 22:01:56 GMT
For repulsion that strong you'd need a powerful electromagnet, which is seriously not feasible for handheld weapons, and the opponent's weapon or projectile needs to be a magnet as well.
|
|
|
Post by unistat76 on Jan 3, 2020 22:01:56 GMT
This thread makes me realize what an amazingly hospitable and friendly forum this is.
|
|