11.   At the Smith Street station, where the train emerges onto the elevated tracks, I was gazing out the window and heard the sound of madly flapping wings.

12.   At the Center for Intelligent Mechatronics at Vanderbilt University in Nashville, Tenn., researchers have successfully applied this theory to build tiny piezoelectric actuators that can flap wings.

13.   A mythological insect flapping its wings in Rio de Janiero causes a hurricane off the coast of Louisiana.

14.   A pigeon flaps its wings up and down in a similar fashion to take off from the ground.

15.   Above, pigeons cooed and flapped their wings.

16.   But Mike stopped running, stood up straight, flapped his wings and tried to crow.

17.   But one can never know how the butterfly will flap its wings.

18.   Carousels spin, angels flap their wings, penguins sing, and toys roll down conveyor belts, all thanks to the new technology.

19.   Custom dictates that he begin flapping his wings the minute he takes the floor and never stop until the game is over.

20.   Considering how long the Seahawks have been flapping their wings in futility, those in charge of restoring the team to respectability are amazingly optimistic.