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The spin of the boomerang along with the forward motion causes
uneven lift over the boomerang's wings. The wing at the top of the cycle
has its spin motion added to its forward motion, producing a higher air
speed and more lift than the other wing. The uneven lift across the plane
of rotation produces a tilting force on the spin axis. This force on the
axis is twisted at right angles because of gyroscopic precession, which
causes the boomerang's flight path to become curved. |
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