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Oh rotation can dramatically stabilize the fluid motion many types of oscillations and wave motions occur in rotating flows and there can be unexpected flow patterns the large-scale motions of the atmosphere and the oceans and even the motions of the stars and galaxies are strongly influenced by rotation we shall look at a number of experiments which show some of the effects of rotation to keep things reasonably simple we shall look mainly at flows that deviate only slightly from a rigid body rotation and we shall confine our attention to homogeneous fluids when we observe the motions relative to a coordinate frame rotating at a constant rate Omega the velocity vector U is measured with respect to the rotating axes the inviscid fluid equation motion then takes this form this much of the equation is identical to the non-rotating case the relative acceleration is balanced by the pressure gradient and the gradient of the gravitational potential in the non inertial rotating frame two addi...