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Is Wonder Woman bulletproof?
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<blockquote data-quote="Random Bystander" data-source="post: 7146797" data-attributes="member: 6702095"><p>I think I will post about the physics of that, because it may be helpful. I should also re-iterate that I am still not a ballistics expert, and this is merely what I have gathered from around the internet.</p><p></p><p>Bullets are very fast, he says, stating the blatantly obvious, as an opening prequel to note that they are also very light. They are also very light. Kevlar stops bullets by breaking; as the bullet passes through the vest, Kevlar strands twist around it, slow it, and essentially *"web" it in place.</p><p>Against metal armour such as full plate, a bullet hits with such kinetic energy that almost all of the collision takes place at the moment of initial impact, so there is not nearly enough time for the bullet to be slowed to a stop. Since a bullet is light, slowing it down is very effective.</p><p>Against a Kevlar vest, an arrow cuts through the strands, limiting their ability to twist around it and stop it. In addition, an arrow is relatively heavy, meaning that the strands which do catch on it, do not do much to slow it down. In short, an arrow has **more momentum than a bullet.</p><p>On the other hand, its kinetic energy is low, meaning that it does not have the initial impact energy needed to penetrate full plate armour. Indeed, metal armour of nearly any type was generally very good at deflecting arrows. Most wounds since the invention of armour, have been to the arms, legs, and face; the most common armour being torso armour.</p><p></p><p>In short, analysis of how a super-powered character's "bulletproof" nature works may well indeed prove very useful in designing counter-measures. An arrow may well work more effectively against a character with "increased density", for example; while some form of hardened skin would more likely call for bullets.</p><p></p><p>The idea that a bow and arrow is somehow "less lethal" does have some truth to it; a bullet to an arm or leg is very likely to prove fatal if untreated due to ongoing blood loss. On the other hand, ***most arrow wounds killed due to disease rather than due to wounding; the arrow itself would seal the wound shut.</p><p></p><p>* The new Spider-man Playstation 4 game looks like great fun.</p><p>** Can vary by weight and speed of arrow and bullet. I may very well be wrong, and almost certainly am for heavier calibres of bullets.</p><p>*** Hard data is somewhat scarce, as you might imagine. <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite1" alt=":)" title="Smile :)" loading="lazy" data-shortname=":)" /></p></blockquote><p></p>
[QUOTE="Random Bystander, post: 7146797, member: 6702095"] I think I will post about the physics of that, because it may be helpful. I should also re-iterate that I am still not a ballistics expert, and this is merely what I have gathered from around the internet. Bullets are very fast, he says, stating the blatantly obvious, as an opening prequel to note that they are also very light. They are also very light. Kevlar stops bullets by breaking; as the bullet passes through the vest, Kevlar strands twist around it, slow it, and essentially *"web" it in place. Against metal armour such as full plate, a bullet hits with such kinetic energy that almost all of the collision takes place at the moment of initial impact, so there is not nearly enough time for the bullet to be slowed to a stop. Since a bullet is light, slowing it down is very effective. Against a Kevlar vest, an arrow cuts through the strands, limiting their ability to twist around it and stop it. In addition, an arrow is relatively heavy, meaning that the strands which do catch on it, do not do much to slow it down. In short, an arrow has **more momentum than a bullet. On the other hand, its kinetic energy is low, meaning that it does not have the initial impact energy needed to penetrate full plate armour. Indeed, metal armour of nearly any type was generally very good at deflecting arrows. Most wounds since the invention of armour, have been to the arms, legs, and face; the most common armour being torso armour. In short, analysis of how a super-powered character's "bulletproof" nature works may well indeed prove very useful in designing counter-measures. An arrow may well work more effectively against a character with "increased density", for example; while some form of hardened skin would more likely call for bullets. The idea that a bow and arrow is somehow "less lethal" does have some truth to it; a bullet to an arm or leg is very likely to prove fatal if untreated due to ongoing blood loss. On the other hand, ***most arrow wounds killed due to disease rather than due to wounding; the arrow itself would seal the wound shut. * The new Spider-man Playstation 4 game looks like great fun. ** Can vary by weight and speed of arrow and bullet. I may very well be wrong, and almost certainly am for heavier calibres of bullets. *** Hard data is somewhat scarce, as you might imagine. :) [/QUOTE]
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