cintrefugal force... like when you have a ball on a string and spin it... then let go... it flys strait out from the point you let it go
all the other planets and the moon.
You do. If you didn't move exactly right along with the earth, then the ground would be whizzing by under your feet, at speeds around 800 miles per hour in the central US, or 1,570 km per hour in...
by turning
Tell them they're cheap idiots and get your money back.