Although it dates back to the early days of the Marconi Company in the 1920s, the Franklin oscillator has remained a relatively obscure circuit, its memory mostly kept alive by ham radio operators ...

Supercapacitors rely mostly on double-layer capacitance to bridge the divide between chemical batteries and traditional ...

Fitness wearables can help you move more, sleep better, and stay healthy. Here's how to pick the right one for you, along with the best fitness trackers we've tested. I’m PCMag’s senior writer ...

There needs to be a future in which cities provide opportunities for all, with access to basic services, energy, housing, transportation and more.

The Global Findex Database is the world's only demand-side survey on financial inclusion and a leading source of data on how adults around the world access and use financial services. Since its launch ...