41.   But if the waves are too small, they lie outside the range of human hearing.

42.   But most waves will be detectable only by instruments with exquisite sensitivity.

43.   But the merger wave has been so important to the economy and the deadlines are so tight that we had little choice.

44.   But this latest wave of litigation is fundamentally different, legal experts said.

45.   But this wave is different.

46.   But the wave of migration is so recent that that prediction remains largely untested.

47.   But, hey, a wave is still a wave.

48.   Can a wave of variety shows be far behind?

49.   Change occurs in little explosions in which matter is created and destroyed, in which chance guides what happens, in which waves are particles and particles are waves.

50.   Child bride sentiments to the contrary, a wave of nostalgia is awash in the land.