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Rereading them , it struck me that for some readers , the earlier pieces might seem to belong to a bygone era - -20 to 30 years ago . The Field poll showed Miller ahead by four points - -20 to 24 . We talked with him about race relations , sexuality , and the need to stop all wars - -20 to 30 years before our country was rocked by these issues . Panofsky and Ginzton quickly took leading roles in exploring the feasibility of building a two mile long , multi-GeV electron accelerator - - -20 to 30 times larger than the Mark III in both size and energy output , and initially referred to as " The Monster " - - - on the Stanford campus . We have been meeting for the last 3 days - -20 , 21 , and 22 August - - with the comrades of the Political Bureau of the Party , with the comrade first secretaries of the party of the six provinces and from the Isle of Pines region , with the comrade secretaries of organizations , with the comrades of the regional and national Committees for the Defense of the Revolution , of the workers movements , of the farmers , of the youth movement , and with some other invited comrades concerning the work they are doing . Exercises 13 - -20 and 21-28 are a parallel grouping of problems involving harmonic oscillators .