Earth is the homeworld of the Human race, located in the Sol System. It is the third planet of the system, orbiting at precisely 1 AU from its parent star, a G2-V Main Sequence star known as Sol, or simply The Sun. Contrary to popular belief, Earth is not the Federation's headquarters - it is Mars.
What causes whole body vibration. Drivers of some mobile machines, including certain tractors, fork lift trucks and quarrying or earth-moving machinery, may be exposed to WBV and shocks, which are associated with back pain.
Introduction to Vibration. Vibration is the oscillatory motion of various bodies. All bodies with mass elements and elasticity are. capable of vibration; hence, most machines and structures including the human body experience vibration to. some degree. Two different categories of vibration are distinguished in literature.