my grandfather used to tell me stories about how a Japanese samurai sword were so sharp that they could cut through a machine gun barrel. then i saw myth buster do a thing on it but they did it all wrong they heated the barrel up for 30mins then used a replica sword to try. the fact that the gun barrels were constantly heated up and cooled over and over again would had made them very brittle. so just heating the barrel up for 30min wasn't accurate and any body that knows swords that if a samurai sword didn't cut through dead bodies it was junk. so how could they use a replica and think they would get the same results?
because they have little knowledge of metallurgy and even less knowledge of how to properly cut with a katana. i saw that episode and dismissed it as bullshit. also they didnt test a khukuri or a falcata, which are very effective cutting tools.
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