Lost in the woods near a stream, with some empty water bottles, wire, plastic plates, and a stepper motor, *and* you need to charge your smartphone? Try this. OK, so perhaps you wouldn't ever be ...

It's a mechanical problem that's troubled scientists since Archimedes and the ancient Greeks but now an electrician has come up with a new invention that could help save consumers thousands of pounds ...

[Paul Junkin] bought a curious product off the Internet. It was supposed to generate electricity when hooked up to a running hose. Only, it didn’t do a very good job. His solution was ...