Treadmills are great for getting in a quick burst of activity or training indoors when the weather outside isn't cooperating. Most treadmills provide feedback about your workout, including approximate ...

Many measurements start with sensors, be they temperature, strain, light, position, or other physical properties. Accurately measuring the distance to and speed of an object has challenges relating to ...

If you want to know exactly how far, and fast, you've run, then a speed-and-distance monitoring (SDM) watch is an essential piece of kit. Timex, Garmin and Navman produce SDMs that use satellites to ...