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Originally Posted by motan
Just few additional remarks:
I, and others, have mentioned strength/weight ratio as a factor. But this apparently very logical argument has a big hole in it. The main strength parameter to increase (per weight unit) is the lateral stiffness and this is NOT a good idea because it reduces lateral flexibility and increase the chances of bending and breaking. A lot has been done in sword forging to achieve the exact opposite-more flexibility, like in katanas (very functional swords indeed).
Air-pocketing and blood grooves do not make sense either if we consider physics and physiology. Suction (underpressure) does, in theory, because in battle situaton, a sword would have to be inserted and pulled out very quickly (much too fast for bleeding to develop). I beleive in empirical solutions, so this will remain a feeble theory untill experiments are conducted.
Why fullers then?
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Forgive me Motan, but it does seem to me that this question has indeed been adequately answered. The blood letting "answer" has been known to be a myth for many years know so i don't think any kind of experiments are necessary to prove this point.
