Do you feel nervous when you make a credit-card transaction using your mobile phone? Your worries could soon be a thing of the past, thanks to a low-cost device that could bring powerful cryptography ...

Ideally, you don’t use your portable generator often. But you don’t want this key piece of emergency equipment to let you down when you need it. How can you make sure your generator is always ready to ...

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 ...

Q: While we were preparing for Hurricane Irma, my son told me I should not use my portable generator to power my TV and computer. Is this true? A: It's impossible to say without more specific ...