What is the best and most practical way to transform particular mechanical energy into electrical energy.I am not quite familiar to physics so I' ll try to explain what I want outsider way. When I say"particular mechanical energy" I mean the energy consisting of many low power hits.One hit make pressure(P) about 0.01 N/m2.When I say many hits I mean 10 - 100 at one time and again and again... What quantum of energy can I expect to get in some period of time? What is recommended ground for getting hits(to be hit) that loosing of energy be the least? I am sincerely hope that you will understand what I am asking for. Thank you!