sci.energy

75 kilogram average person takes a step and presses 75 kilograms down,
then back up. Imagine Tokyo, large crouds walking on a street and with
each step energy is made. Imagine the weight of cars in a street
moving passed a weight thing, tens of thousands of cars press down
there with 1-10 tons for a second or more, one after the other all
day. To press down a centimeter with one ton would mean that a ton can
be lifted with the energy made a centimeter. 10 thousand cars a day
press 10 thousand centimeters or 100 meters for over a ton. I don't
know how many watts that means. The German autobahn could make energy
that way, to have segments on the highway that transform weight
pressure into electricity.

I wonder if an average person is 75 kilograms and steps on a thing
that converts this step into electricity, how many watts he would make
with a step?