31.   For safety reasons, the propellers are turned at different speeds by an electric motor instead of the internal combustion engine used on the original plane.

32.   He has a dizzying array of pitches, including four different speeds of change-up.

33.   He is trying to add a sinking two-seam fastball, a changeup, breaking balls with different speeds.

34.   He would throw a fastball inside and then maybe a curveball or a slider, or maybe a changeup, all at different speeds.

35.   Hernandez reminded Torre of Juan Marichal, with the different arm angles, different release points, different speeds.

36.   How do these fibers transmit information at different speeds?

37.   In time he learned to throw different speeds and got it to tail, too.

38.   Like a stick-shift car, Marbury has different speeds, and he uses them shrewdly.

39.   Move the fan selector switch through all the different speeds and listen to the motor.

40.   More than ever, the Arab world is also running at different speeds.