Dividing the watt-hours of a generator by the watts of the devices you plug into it can tell you (even before you buy) how much runtime you’ll get.

Your home generator can power plenty of devices, but there are some items you should keep unplugged to avoid damage, overloads, or tripping the system.

Hydrogen! It’s a highly flammable gas that seems way too cool to be easy to come by. And yet, it’s actually trivial to make it out of water if you know how. [Maciej Nowak] has shown us how to do just ...