Waves And Ripples in Water Air And Aether Being a Course of Christmas Lectur
Waves And Ripples in Water Air And Aether Being a Course of Christmas Lectur
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In our eReader you can find the full English version of the book. Read Waves And Ripples in Water Air And Aether Being a Course of Christmas Lectur Online - link to read the book on full screen. Our eReader also allows you to upload and read Pdf, Txt, ePub and fb2 books. In the Mini eReder on the page below you can quickly view all pages of the book - Read Book Waves And Ripples in Water Air And Aether Being a Course of Christmas Lectur
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Here, for instance, is a heavy ball suspended by a spiral spring (see Fig. 53). If I pull the ball down a little, and then let it go, it jumps up and down, and executes vertical vibrations. The elastic control here is the spring which resists extension. In this instance, also, there is a natural free time of vibration, independent of the extent of the motion, but dependent upon the weight of the ball and the stiffness of the spring.
A good illustration of the above principles may be found in th...e construction of a clock or a watch. A clock contains a pendulum which vibrates in a certain fixed time. The arrange- ments we call the " works " of a clock are only a contrivance for counting the swings, and re- cording them by the "hands" of the clock. Owing, however, to the friction of the " works, " FIG 53 the pendulum would soon come to rest, and hence we have a mainspring or " weights " which apply a little push to the pendulum at each swing, and keep it going. In a watch there is no pendulum, but there is a "balance-wheel and hair-spring, " or a wheel which has a spiral spring attached to it, so that it can swing backwards and forwards through a small angle.
What to read after Waves And Ripples in Water Air And Aether Being a Course of Christmas Lectur?
You can find similar books in the "Read Also" column, or choose other free books by John Ambrose Fleming to read onlineMoreLess
To quickly assess the difficulty of the text, read a short excerpt:
Here, for instance, is a heavy ball suspended by a spiral spring (see Fig. 53). If I pull the ball down a little, and then let it go, it jumps up and down, and executes vertical vibrations. The elastic control here is the spring which resists extension. In this instance, also, there is a natural free time of vibration, independent of the extent of the motion, but dependent upon the weight of the ball and the stiffness of the spring.
A good illustration of the above principles may be found in th...e construction of a clock or a watch. A clock contains a pendulum which vibrates in a certain fixed time. The arrange- ments we call the " works " of a clock are only a contrivance for counting the swings, and re- cording them by the "hands" of the clock. Owing, however, to the friction of the " works, " FIG 53 the pendulum would soon come to rest, and hence we have a mainspring or " weights " which apply a little push to the pendulum at each swing, and keep it going. In a watch there is no pendulum, but there is a "balance-wheel and hair-spring, " or a wheel which has a spiral spring attached to it, so that it can swing backwards and forwards through a small angle.
What to read after Waves And Ripples in Water Air And Aether Being a Course of Christmas Lectur?
You can find similar books in the "Read Also" column, or choose other free books by John Ambrose Fleming to read onlineMoreLess
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