The New Encyclopædia BritannicaEncyclopædia Britannica, 1983 - Encyclopedias and dictionaries |
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Page 99
Life on the slopes Examples of vibrating bodies Vibration as periodic motion The hertz Stationary waves. quakes , lasting for six months and gradually increasing in violence , preceded a major eruption that took place on December 16 ...
Life on the slopes Examples of vibrating bodies Vibration as periodic motion The hertz Stationary waves. quakes , lasting for six months and gradually increasing in violence , preceded a major eruption that took place on December 16 ...
Page 100
... hertz ( abbreviated Hz ) , named after a Ger- man physicist Heinrich Hertz ( 1857-94 ) . In the vibra- tion of the object on the end of a spring , as described earlier , the frequency may be low enough ( e.g. , from 0.5 to 2 Hz ) so ...
... hertz ( abbreviated Hz ) , named after a Ger- man physicist Heinrich Hertz ( 1857-94 ) . In the vibra- tion of the object on the end of a spring , as described earlier , the frequency may be low enough ( e.g. , from 0.5 to 2 Hz ) so ...
Page 808
... Hertz to 20 kilohertz ) to about ten times the human upper limit ( up to about 150 kilohertz ) . In odontocetes , the hearing of clicks is highly directional and is apparently mediated through the lower jaws and throat , rather than ...
... Hertz to 20 kilohertz ) to about ten times the human upper limit ( up to about 150 kilohertz ) . In odontocetes , the hearing of clicks is highly directional and is apparently mediated through the lower jaws and throat , rather than ...
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