refer to the following: The lemniscate motion occurs
Chapter 8, Problem 65(choose chapter or problem)
refer to the following: The lemniscate motion occurs naturally in the apping of birds wings. The birds vertical lift and wing sweep create the distinctive gure-eight pattern. The patterns vary with the different wing proles.Flapping Wings of Birds. Compare the following two possible lemniscate patterns by graphing them on the same polar graph: r2 = 4 cos(2 u) and r2 = 1 4 cos(2 u).
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