Longitudinal Waves. In a longitudinal wave, the motion of the medium is parallel to the direction of the wave. This means that the particles move left and right which in turn makes the other particles start to oscillate. Sound waves are longitudinal waves.
The name âZimbabweâ is an anglicized form of an African word meaning âstone housesâ, for the ruins of the Great Zimbabwe are comprised of several stone walls, monuments, and buildings built mainly of granite. The structures were created using a method called dry stonewalling, which requires a high level of masonry expertise.
900-year-old stone kingdom: The breathtaking ruins of Great Zimbabwe. By Teo Kermeliotis and Stefanie Blendis, CNN â¢ Published 29th January 2014. Legend has it that this was once a playground for the giants -- and for visitors gazing over this steep hill in southern Zimbabwe it's easy to understand why.