rolling handle by yuri kim from korea

Do you know how consumption of day average electrical energy of the subway ?
The subway runs on electronic. In the case of Korea, quantity of electricity that use a day in the whole Seoul subway is about 4,070,000 kwh.
This middle 70% is used in train operation and the remainder 30% is used on the illumination or subway inside.
The subway is using in a lot of countries. The subway us most is a means of the public transportation which is representative but consuming the energy of the degree which will surprise door Jeddah.
Rolling Handle did battery as motive containing meaning that charge electricity and when drags or turned hand spike, used principle of occurred kinetic energy.
The energy which occurs becomes and making up in the energy which is used in subway illumination will be able to economize a war potential there to make be does. Is valuable energy by people's just simple wrist movement happens. The people touches and directness with moves and is a design which is sensitivity the antenna stimulates.
The right-hander and the left-hander both will be able to use form, turns adds the element which is fun with the ear of the people there to be a chisel possibility, all had both a functional characteristic and a entertainment.
How much war potential should have gathered in the handle, when the number ascends in order to indicate every, with pleasant sensation together will be the possibility of feeling a fun.
Can use somewhere if the subway is where handle is not and handle may gather great energy if each feed unites energy because is not one.
It is design that can economize a lot of energies in people's small effort.