Do the piezoelectric wafers also turn kintetic energy into electric?
If the cars are already being slowed by the tar, as long as it is not slowed anymore it would be effective to use them. Also, how about in the floors of amusement parks or malls? The combined force of all the people walking would be large aswell. To use it in target areas only line up areas would be used.
enigma your signature says that there are always multiple right and wrong answers. but in more words
I read the rest of the quotes he has in there though, i agreed with most of them.