One of the most important measurements we make while tuning an engine is finding out what the actual balance of air and fuel was inside the engine. It doesn’t matter if we have a carburetor, port ...

Smartphones have become indispensable, yet their convenience comes with risks to personal privacy. Always-on microphones, sensors, and apps can collect location, audio, and behavioral data without ...

Contact sensors, often known as door or window sensors, use magnets to sense open or closed states. You can use this information and the changing of these states to do all sorts of neat things in your ...

Federal safety officials are scrutinizing Waymo after its driverless taxis were recorded gliding past stopped school buses with red lights flashing and stop arms extended, maneuvers that would bring ...