11.   There was a wave of public sympathy for her when she died.

12.   Ultrasonic waves are at a higher pitch than the human ear can hear.

13.   The third wave was so strong it knocked me backwards.

14.   Waves are the children of the struggle between ocean and atmosphere, the ongoing signatures of infinity.

15.   Reproducing a smooth waveform in digital code requires a very high rate of sampling every second, particularly if the wave is complex with many different component frequencies.

16.   The human waves were at an end, as Iraqi Defence Minister Khairallah had foretold in January.

17.   If the two emitted waves are to be in phase and reinforce each other, their path lengths must differ by a number of wavelengths.

18.   Government optimism that the crime wave may at last be under control will be little consolation to Franc Hyde.

19.   He says that if there had been a bit less water in the river the wave would have been bigger.

20.   The strike waves were the delayed expression of this resentment.