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Two built-in oscillators are set to very closely-spaced frequencies , and the device then produces a series of alternating tones of the two frequencies , each lasing about one-half second . They also know we could destroy any country we wanted , and the world community would stand by and watch . This process is too long to reprint in full in this article , but the operation is simple enough . Meteorological records show there are n't too many places that fall into that category , but those wind readings are taken close to the surface . We may therefore , I think , safely conclude , that this fourth and last allegation , contained in an information against a man for writing and publishing a seditious paper or libel , to wit , its tendency to disturb the public peace , or to produce the other bad effects set forth in the information , is a proper object of the consideration and determination of a jury , or , in the law-sense of the phrase , a matter of fact , as well as the three former allegations , of the writing the paper , the publishing it , and the intention with which it was published .