Using electrochemical impedance spectroscopy (EIS) techniques to help obtain battery working conditions like SOH and SOC.

NPR's Ailsa Chang speaks to mathematician Eugenia Cheng about the Pascaline -- a 17th-century invention credited as the first mechanical calculator.

If you're planning to increase your electrical load by adding a new major appliance, make sure your panel can handle it. Here's how.

Disposable batteries seem so 1990s. Sure, it’s nice to be able to spend a couple of bucks at the drugstore and get a flashlight or TV remote back in the game, but when the device is a daily ...

Check the currency rates against all the world currencies here. The currency converter below is easy to use and the currency rates are updated frequently. This is very much needed given the extreme ...

OLED TVs I test TVs for a living — here are 3 reasons I’d splurge on OLED over a cheap TV TVs I make a living testing TVs — these are the 5 TVs under $1,000 I'd buy right now ...