Learn how to make a simple hand-cranked power generator from scratch using basic materials like DC motors, a wooden base, an ...

If you’ve ever sat through a power outage watching your phone battery tick down — or worse, found yourself off the grid with no way to call for help — then you already know how clutch a backup power ...

While desktop 3D printing is an incredible technology, it’s got some pretty clear limitations. Plastic parts can be produced quickly in a 3D printer but can be more expensive or take longer to make ...

Hand-crank generators are, well, handy. It's always a good idea to keep a backup battery on hand when you're traveling, in case you need to make an emergency call—but if you're in a place without a ...