Love the science, but first cleavage division is a great band name.

The key word here is low powered. This is not for your washer, tv or even phone. It might power a sensor here or there, or a small led. Amazing technology, though. Imagine the "powered by dirt" stickers...

A string that long that doesn't sag to the ground or break is already physically unlikely, but assuming it exists it would probably stretch enough to compensate for the movement. So I'd say no, unless you had a perfectly rigid string.

But he's a liar and I'm not sure about you!

Thanks for getting a great song stuck in my head.