Voorbeelden van the sound barrier

• Wattenberg equates this development to 'breaking the demographic sound barrier ', and his book is an engaging discussion of the wide-ranging challenges this demographic revolution will pose.

• I am sure that grandma, when she goes through the sound barrier, will not even notice it, however fantastic it may sound.

• Don't talk about going through the stratosphere and breaking the sound barrier and all the rest of it.

• That is what they are going to do; and who wants to go through the sound barrier?

• I am advised that the installation of a ground sound barrier would have little practical effect.

• The only thing he will not include is the nonsense of the sound barrier.

• He made a number of references to supersonic speeds and at least one reference to breaking the sound barrier.

• We have just about one aircraft which will break the sound barrier.