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.
An evaluation takes into account the intensity and frequency of the vibration, the duration (years) of exposure and the part of the body which receives the vibration energy. Hand-arm vibration causes damage to hands and fingers. It appears as damage to blood vessels and nerves in the fingers.