ok so I was reading this manga, of a battle mage in another world and it is great so far (no harem an the dude gets with the girl at the start =D), but one thing always takes me out and that is
that they designed a sword with a replaceable blade!!!.... now he puts a hyper-sonic vibration on the blade which in itself I can pass(magic and junk), but they give this non magic blade to actual military and they act like its the best thing ever. they even say not as a joke of making a sword from a mould at the start and here I am banging my head cause I actually research how a blade works and know that
A) swords made from moulds are wall hangers at best and useless pieces of shit at worst
B) swords are made of one piece of metal cause if they didn't the place where they connect is a giant weak spot and any sane person would chuck the piece of shit out the window and get a real sword.
it's a nitpick but it really takes me out of the story -_-