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

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 ...

Vue.js is a progressive JavaScript framework for building front-end UIs. It lets developers start simple with reactive data binding and declarative templates, then scale up to complex apps with ease.

The situation: Roger Jackson had a four-decade career as a geologist. After leaving full-time work, he originally planned to do part-time consulting for five years. But he ended up retiring after just ...