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.
Other conditions that may cause fluttering or vibrating sensations in lower abdomen. Muscle twitching: muscle twitching is a very common phenomenon which is experienced by millions of people every day. It is a normal process and can be due to several causes such as: Hyperactivity of central nervous system.