List of generation V PokÃ©mon. (Redirected from Zorua and Zoroark) The international logo for the PokÃ©mon franchise. The fifth-generation (Generation V) of the PokÃ©mon franchise features 156 fictional creatures introduced in the 2010 Nintendo DS games PokÃ©mon Black and White.
1 This type of radio propagation is encountered with signals travelling to and from satellites. 2  Ground wave propagation: When signals travel via the ground wave they are modified by the ground or terrain over which they travel. 3  They also tend to follow the earth's curvature.
A device that converts one form of energy into another. In ultrasonics, electrical energy is converted to mechanical (sound) energy and visa versa. Modes of Sound Wave Propagation. In air, sound travels by the compression and rarefaction of air molecules in the direction of travel. However, in solids, molecules can support vibrations in other directions, hence, a number of different types of sound waves are possible.