How to use the Apple Watch Workout app: View progress during your workout. By default the Workout app shows progress towards your goal (if you specified one) as a ring on the lefthand side of the screen-as on the Activity app, the ring fills in clockwise and a complete ring represents a completed target.
Man-Made Noise (Industrial Noise) By man-made noise or industrial- noise is meant the electrical noise produced by such sources as automobiles and aircraft ignition, electrical motors and switch gears, leakage from high voltage lines, fluorescent lights, and numerous other heavy electrical machines.
Like any waveform, sound has the characteristics of wavelength, frequency, amplitude and speed or velocity. Sound waves are created by the vibration of some object, like the cone in a radio loudspeaker. The waves are detected when they cause a detector to vibrate.