Although apparently only in dry bone? So I shouldn't zap myself to make my bones stronger xD
Though I suppose Brook is just bone dry bones (+ afro) so it should work for him.
wait actually how does the bone being in compression make it stronger …
No, there's research being done about how to use electricity to help heal bones faster (in living people). Bone is piezoelectric whether it's dry or not, as far as I'm aware. Thing is, if you send too much current through a living bone, then you'll actually start killing the bone tissue. Trick is figuring out how much current you can supply before you start frying your marrow cells.
The reason why compression makes bones stronger is because of microfractures. When the bone is already slightly damaged (like it usually is after experiencing significant impact), then it is likely for fractures to grow if enough tension is applied. But, if you can keep the bone under compression using the piezoelectric effect, then even normal wear and tear will not cause these microfractures to grow as it normally would.
Stay tuned for the next installment: Why electricity makes Brook's afro even better, too!
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Come on, Brook. You can do it!!!