They’re controlled by an Arduino Nano which has a built-in inertial measurement unit, allowing it to sense the angle the pipe is being held at as well as making determinations about its movement.

Learn about social security benefits, including retirement, disability, survivor benefits. Understand when to start collecting benefits and what you'll receive.

J&J’s leaders estimate that wellness programs have cumulatively saved the company $250 million on health care costs over the past decade; from 2002 to 2008, the return was $2.71 for every dollar ...

Use BBC.com or the new BBC App to listen to BBC podcasts, Radio 4 and the World Service outside the UK. Find out how to listen to other BBC stations ...