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What’s the stupidest thing you’ve ever heard about blades?

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Zaydok Allen

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This morning an online acquaintance proceeded to make a statement in a group that a jagged dull blade was better for self defense because it “tends to rip rather than cut” and because of that “it’s harder to repair the damage”. Then she proceeded to tell us about her sword and why she should be allowed to take it on a plane.

I was going to respond but just saw no point.

What’s the one you just can’t forget?
 
I'm just curious now if you gents bother to try and correct these notions at all, or just walk away. I've really lost steam in the last year trying to share good info regarding firearms, and engage with folks still learning some thing. Not to say I'm an expert on firearms or loading, but I have some experience. I typically shut my mouth about knives because my knowledge base is small, but the amount of incorrect and just silly notions that gets parroted is really disturbing to me.
 
I'm just curious now if you gents bother to try and correct these notions at all, or just walk away.

If it’s just someone spouting, I generally ignore, smile and nod, maybe a “that’s an interesting perspective.” Remembering the sound of my Grandmother saying “bless his heart.”, being that’s all she had that wasn’t negative to say.

26:4 “Do not answer a fool according to his folly, or you yourself will be just like him.”

If it is someone in learning mode, I might dive into things deeper.
 
Yes, read the audience. Many have bought the hype and now feel obligated to defend it. Others are trying to learn from those with experience. There will be a lot to discuss among those with wisdom and experience, but there is no use investing the time with someone who believes their blade is a 78 on the Rockwell C scale.
 
The Japanese katana has a lot of mythology behind it. I used to read of accounts where Japanese Officers chopped the barrel off a machine gun with their katana. Read it in a National Geographic that claimed the machine gun was in a museum. Seems the Japanese military had a thing against machine guns, based on the number of stories where the samurai sword cuts the barrel in two.

this is typical of what you read:

Perhaps the strongest swords ever made were the weapons of the samurai in Japan. As far back as the eighth century until the end of the feudal period in the nineteenth century, Japanese smiths made blades of exceptional hardness by welding strips of iron and steel together, then folding the resulting sandwich over on itself and pounding it flat again. This process was repeated from 12-28 times. Old blades were passed down in families, and some were still in use in World War H. These swords were so sharp and strong they could cut through a machine gun barrel.

http://www.madehow.com/Volume-5/Sword.html

Mythbusters tested this, and the sword broke.

MythBusters Episode 64: More Myths Revisited
 
Reading your audience is precisely what I did. This person is a huge know it all bag of wind. Can't stand her. I just won't engage with someone like that.
 
I remembered another: the blood groove. How many times have you been told the "blood groove" prevents suction inside the victims body from trapping the blade?

LXqd9fq.jpg

This is one you were you have to be a bit of a history buff to know. Pre WW1 Pioneer troops were issued a saw tooth bayonet as a multitool. The saw teeth were there so the back of the bayonet could be used as a saw. This is a Swiss version. With "blood groove"

dR3pQlC.jpg

German Pioneer troops had the things, and the Allies developed an atrocity myth that the saw teeth were on the bayonet to create a terrible wound. As if getting one of these all the way through you was not bad enough, the saw teeth were supposed to rip and tear the poor victim to pieces. The Horror's! If Allied soldiers caught a German with a saw tooth bayonet, they shot him out of hand. Word got out on the German side, and it is hard to find a German saw tooth bayonet, or one with teeth. I have one where the teeth were ground down, for obvious reasons.

Those were the good old days

rPoIheC.jpg

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Yeah, "blood grove" for fullers still makes me flinch and the lecture on lightening while structurally improving the blade begins to start in my head.

"Damascus" myths.

Katana myths.

Bowie mythology.

Kabar mythology.

The list goes on and on.
 
Blood groove on the Kabar is based on the original Marbles knife - which used that recess to lighten the weight and still have stiffness in cross section. It used less material which during WWII with metal rationing was a plus.

Other than that, meh.

RE: the OP, use of the word "devastating." The recent flooding in central TN with 22 dead was devastating. A knife? Compared to what? I would suggest that a magazine of 9mm might be devastating, or the use of a mace, war hammer, or sword - as it usually has 3x the sharpened edge and momentum.

If you can wade thru the hyperbole and constant machismo of knife enthusiasts you'll find the tech interesting and much deeper than the "dumb" steels and lack of sophisticated alloys and treatments in firearms. Knives are literally weapons - a gun isn't, the ammunition does the damage. A gun is just the mobile launcher platform, like a battle tank or aircraft carrier. At least with knives you pay attention to the shapes, grinds, etc as they are critical to how it works, and looks. A gun? Tube on a handle in its basic form, no changing it.

There is a significant factor to where knives rank as a weapon, and that is stand off distance. It's why people tend to be somewhat sarcastic about bringing a knife to a gunfight - only if the gunfighter somehow loses the advantage of distance can a knife combatant win. The 21 foot rule was all about how it was done, and why you shouldn't let them closer. This is where the justification to shoot a knife wielding person is derived - if closer than 21 feet, they can be lethal, therefore, treat them as such.

It's the less educated who have no clue over it who complain, and you get to see who is and isn't the sharpest knife in the drawer.
 
Well, she was not wrong, a dull edge does more damage, hence the adage a sharp knife is a safer knife. Serrated blades are amazing cutters. That said, what the heck is she planning, is she the next Dexter or something? If someone thinks it's a good idea to bring a sword onto an airplane I'm not sure there's much of anything you're gonna be able to say to get through to them.
 
Well, she was not wrong, a dull edge does more damage, hence the adage a sharp knife is a safer knife. Serrated blades are amazing cutters.
Well, when I think about this, I guess I think a dull, jagged, or even a serrated blade is going to do worse surface damage, and create an uglier wound that is harder to repair. But I wouldn't think that it would be better for self defense. I mean I don't think Michael Janich designs a self defense knife for Spyderco, and then says "Ok now make it a dull jagged blade." A scary sharp knife is going to cut deeper, with less effort, which means potentially severing more muscle, tendons, and certainly more veins, arteries, and capillaries in a well placed slash. I would think it would lead to more profuse bleeding, and perhaps more debilitating wounds than a dull or jagged blade would produce.

If that's incorrect thinking, please correct me. Like I said, I'm not an expert by any stretch of the imagination.

hence the adage a sharp knife is a safer knife
I thought this referred to the safety of the knife user, in that a sharp blade will cut with less effort, and therefore there is less possibility of the user applying too much force and slipping with the blade, and cutting themselves.

Again, If I have this backwards or incorrect, please, someone with more knowledge correct me.
 
Your online acquaintance sounds as if she has given some thought to maximum mayhem. Seems to exhibit berserker tendencies. Caution is advised.
I play a team based strategy game online, and she happens to be on the same team. I really can't handle her on a personal level, and allow her only minimal access to me. Unfortunately she knows everything if you ask her, and takes the group chats down some strange paths. I just avoid her.

Fortunately an ocean separates us, along with at least half a continent. But her silly notions fly around the ether quite a lot.
 
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Well, when I think about this, I guess I think a dull, jagged, or even a serrated blade is going to do worse surface damage, and create an uglier wound that is harder to repair. But I wouldn't think that it would be better for self defense. I mean I don't think Michael Janich designs a self defense knife for Spyderco, and then says "Ok now make it a dull jagged blade." A scary sharp knife is going to cut deeper, with less effort, which means potentially severing more muscle, tendons, and certainly more veins, arteries, and capillaries in a well placed slash. I would think it would lead to more profuse bleeding, and perhaps more debilitating wounds than a dull or jagged blade would produce.

If that's incorrect thinking, please correct me. Like I said, I'm not an expert by any stretch of the imagination.


I thought this referred to the safety of the knife user, in that a sharp blade will cut with less effort, and therefore there is less possibility of the user applying too much force and slipping with the blade, and cutting themselves.

Again, If I have this backwards or incorrect, please, someone with more knowledge correct me.

This is true, about cutting safer, but it's also due to chances of less nerve damage and disruption. Think of using a serrated knife to cut steak vs a plain edge. Much less damage to the beautiful steak with a plain edge.
 
Dull knives don't cut as deeply as sharp knives. The serrated knife isn't dull, it has more sharp cutting edge for the length. The behavior of a serrated knife is they don't get sharpened enough/properly because they'll still rip through material after they've lost their sharpness so people don't care for them. A butcher or a surgeon or craftsman keeps his knives sharp because they cut more smoothly, but also because they cut more efficiently.

This crazy myth about dull/jagged knives comes form people that don't know anyone that works with one as part of their living. The number of knife makers that were meat cutters is considerable and they laugh at this one when it comes up.
 
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