Actually, having read the Engadget end of things, I can see exactly what the professor is saying in his blog post. The potential energy capture from any rain-r

Actually, having read the Engadget end of things, I can see exactly what the professor is saying in his blog post. The potential energy capture from any rain-related technique is trivial, negligible is a better word. The article sounds completely clueless to anyone who understands the energy flow involved. The fact that it was written should be a professional embarrassment for that author. The fact that the original paper was treated with any respect is yet another level of embarrassment. A high school science project sounds more believable. None of the original ink / bits should have been wasted. But I suppose some sort of nanoscale power supply could be some potential use, so maybe, maybe, there's some redeeming value. But not the way the paper or the article tried to spin it.