Tests confirm graphene-based energy harvesters can use ambient energy to run ultra-low power sensors — the first hurdle in developing autonomous sensor systems.

Researchers in United Arab Emirates have developed a novel model that relies on either the open-circuit voltage or the maximum power point voltage to estimate PV module operating temperature without ...

Astronomers directly imaged a faint companion star orbiting Betelgeuse, solving a decades-old mystery about its strange ...

Discover the best home-improvement products—lab-tested, expert-approved upgrades for kitchens, baths, and beyond from Good ...

Aptera is slowly but surely moving toward its goal of making a usable solar-powered electric car. After years of delays and multiple crowdfunding campaigns, the California-based startup said it began ...

The VX2 Pro is a two-slot battery charger that can take a wide variety of cell types and sizes. You can pop in AA, AAA, C, D, 18650, 21700, and more, and the unit will automatically detect the battery ...

I've worked hard over the past few years to move away from disposable alkaline batteries and replace them with rechargeable equivalents. After all, there are some great brands of rechargeable AAA, AA, ...