As seismologists gained more experience from earthquake records, it became obvious that the problem could not be reduced to a single peak acceleration. In fact, a full frequency of vibrations occurs.
Charles Francis RichterThe laboratory routine, which involves a great deal of measurement, filing, and tabulation, is either my lifeline or my chief handicap, I hardly know which.
Charles Francis RichterIt is a common remark that men talk most who think least; just as frogs cease their quacking when a light is brought to the water-side.
Charles Francis Richter