![]() Also cutting a tunnel through a mountain might be a bad idea, due to cave-ins. Enemies may take you out from afar, or dodge your blow to land their own. Just because you can cut everything doesn't mean everything waits to be cut. If the blade could cut everything like hot butter, would it be the ultimate weapon? Also, the core is really dense, so it probably float on it's surface. You still have to break apart the bonds in the material you want to cut, and the blade is not heavy enough for that. You can likely pull it out in a second or two, but you should still pay attention when fighting (between) trees.įAQ If I drop the blade (without the handle), will it drop to the core? Then you have a whole tree pushing on your blade. Penetrating the wood might be easy, but because it is wet the wood will expand slightly after cutting it, as there now is a gap of air. But you still have friction, and you still have to overcome it. The only advantage you have over metal is that the surface of your obsidian can be much smoother, allowing you to pull it out easier thanks to a lower friction. A blade can cut only at the edge, if something blocks the blade it is the same af if you put a sheet of metal (for example) between the two blocking objects. Sure, put an anvil on it and it won't move an inch anymore. ![]() ![]() So while an iron sword may not be able to cut through a particular leather-armor on first strike, due to the weight and the inertia it might still carry on where the obsidian blade due to it's smaller mass simply can't. Weapons made from Iron do not only cut, they also crush due to their weight. You're biggest problem is not that your sword might not be able to cut it, but that it might miss the cutting power. It would be better for your enemy to replace the sword after the fight, but that isn't helpful to you now. You may possibly not even cut his sword in half, though you could leave some nice cuts along the edge. This means you probably can not simply cut through the steel armor of your enemy, unless you hit him really hard. For every** deeper layer you have to deform all the layers above. Luckily your obsidian blade focuses all the strength you put in on a single-atom width line, so you can probably cut the first layer of atoms quite easily.įor the next layer you not only have to cut it, but also push the first layer a bit to the side, as blades are usually getting a bit wider away from the edge (otherwise you had a blade that would be only one atom in width). To cut through for example a metal plate you have to first break the binding between the metal-atoms, which is pretty strong. For this matter, skin is not really solid*. You will still have a hard time cutting any solid surface. It will be easier to free than a steel blade, but ultimately an obsidian surface still experiences friction. Ultimately you should be able to cut almost anything with it, but it will take time.Īnd yes, you still can get stuck. While being useful against soft materials even in combat situations, harder materials might need more strength to achieve the same result in the same time. It is not the ultimate weapon of all-cutting. So you got an indestructible obsidian blade, now what? I've a basic understanding of tensile strength, shear strength, etc., but I'm looking for a way to describe this to readers in simple terms. What other concerns and limitations would a wielder realize, with the use of such a blade? Would it get stuck in things, despite its unbreakable and peerlessly sharp edge?įeel free to use hard science or common sense to describe answers. ![]() ![]() No, breaking the blade isn't an issue - though perhaps friction or binding would be. So an obsidian blade relic wouldn't be encountering issues of chipping or snapping off when directed at plate armor, stone doors, or the like. For all other practical purposes, a relic won't burn, shatter, warp, etc. One of the conceits of this setting is that items of mythic power can only be broken or altered under specific circumstances. It's sharp enough to cut between human cells, and is even used in surgeries today. Knapped obsidian holds an edge one molecule thick. Exactly what could an obsidian blade do, if it were unbreakable? ![]()
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