The sound speed changes dramatically for materials undergoing phase change, and can be orders of magnitude different.

Once more he ordered a speed change, back to 20 knots, running silent, steady, without further hysterics.

Once more, Bahrank put them through a series of dazzling speed changes and turns for no apparent reason.

The speed change is made by changing metal drive gears within the power head.

Due to the 5.2 cm3 engine's ample power, speed change is not necessary.

The calculations required to work out the speed changes caused massive delays on set, causing the band to nearly call off the entire plan.

Safety is frankly put at risk because of the huge number of speed changes on highways.

He begins to practice his speed change at home and at the Daily Planet.

HP3 went through two speed changes in its history, but only one actual change to the emulsion.

Ramps (speed changes in the shot) can be shown also.