Longitudinal wave and seismic P-waves (created by earthquakes and explosions). In longitudinal waves, the displacement of the medium is parallel to the propagation of the wave, and waves can be either straight or round. A wave along the length of a stretched Slinky toy, where the distance between coils increases and decreases, is a good visualization. In the case of longitudinal harmonic sound waves, the frequency and wavelength can be described by the formula where: The quantity "x"/"c" is the time that the wave takes to travel the distance "x". The ordinary frequency ("f") of the wave is given by The wavelength
The Wave 96.4 FM The Wave 96.4 FM 96.4 The Wave is a British Independent Local Radio station that serves the Swansea Bay area of West Wales. The station is owned by Wireless Group and mainly broadcasts chart and contemporary music, alongside news and local information, for an audience of under 40s. Initially broadcasting as 95.1 Swansea Sound on 30 September 1974, the station split into two separate services on 30 September 1995, creating a new music-led station called 96.4 Sound Wave when it moved its frequency from 95.1 FM to 96.4 FM, while Swansea Sound continued to broadcast on 1170 AM. The separate