41. The first extra term is the Coriolis force , the second the centrifugal force, and the third the Euler force. 42. The concept was originally introduced by a French physicist Jacques Babinet in 1859 using mathematical deduction and Coriolis force . 43. Where matter moves relative to the co-rotating frame it will seem to be acted upon by a Coriolis force . 44. The force of spin, called the Coriolis Force , is a maximum at the poles and zero at the Equator. 45. The centripetal centrifugal force may be dispensed with, but we still have to take the Coriolis force into account. 46. It can be seen that for any object, the coriolis force over it is proportional to its momentum vector. 47. In application to the HRG shell, Coriolis forces cause a precession of vibration patterns around the axis of rotation. 48. In this case the Coriolis force is twice the magnitude of the centrifugal force, and it points in centripetal direction. 49. The deviations are caused by the Coriolis force and conservation of potential vorticity which leads to changes of relative vorticity. 50. The force of spin, called the Coriolis force , is at a maximum at the poles and is zero at the equator.