Considers that any anytime you’re standing on the planet Earth is rotating and it's going from the west towards the east that's why the Sun rises in the morning and out at any given time let's say we’re pointing north for example K that's north or their see take a look at beautiful Mar I here where I’m standing and a shelf that's the north over there the earth is spinning faster here because its wider here than it is up there to think about the North Pole in order to do a one rotation it's small distance it covers up real high North you towards the equator and it's a larger distance that has to be covered in order to make rotation severe spinning faster towards the south and as an art stuff Inset up a target over there at 1500 meters or whatever I earth is not spending as fast over there as.http://neuro3xhelp.com/