Saturday, March 12, 2011
Birds and Bugs Fly the Same
Scientists studied 7 different kinds of winged animals - bugs to birds - and found they all used "flapping counter-torque" to turn. When a bird or bug turns right, its left wing moves faster on the downstroke while the right is faster on the upstroke, slowing the animal’s rotation. Whatever their size, animals with a similar wingspan to body length ratio need the same number of flaps to finish a turn.