“This is a marvelous step” toward more efficient random number generation, says Rajarshi Roy, a physicist at the University of Maryland in College Park who was not involved in the work. Random number ...

So, I want to make a small hand-operated electric generator with my kids just to kind of show them how this kind of thing works. I understand the basics, but there are some things I want to do that I ...

While we've been hearing a lot about wearable piezoelectric devices that produce electricity from people's movements, such gadgets don't work well under certain conditions. A new bioelectric wearable, ...

We may receive a commission on purchases made from links. Most households these days rarely face a power outage. Even when they do, there is usually some sort of warning beforehand that gives people ...