This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1912 Excerpt: ...same vibration number. Striking one of these and soon after damping it with the fingers, we are able to hear a faint response coming from the other. If the vibration numbers of the two forks were not the same, no such tone would be produced. When these are equal, however, the fork originally sounding impinges its ...
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This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1912 Excerpt: ...same vibration number. Striking one of these and soon after damping it with the fingers, we are able to hear a faint response coming from the other. If the vibration numbers of the two forks were not the same, no such tone would be produced. When these are equal, however, the fork originally sounding impinges its vibrations upon the other through the medium vibrations of...., .. tuning forks. of the air, just as the pushes were given to the swing, or the puffs of breath struck the suspended cannon ball. A pulse of condensation proceeding from the first fork hits the second, giving it a slight forward momentum. Its return is then facilitated by coincidence with the rarefaction which has followed the condensation from the first fork. Another pulse of condensation now strikes the second fork, and the whole process is repeated with slightly increased momentum. Thus the motion accumulates, as in the examples above cited, until the second fork sings steadily with the first. But a tuning-fork may with equal facility incite sympathetic vibrations in bodies unlike itself. Let us hold our sounding fork over a glass jar, as in Fig. 57, first ascer-Effect o taining the pitch of the air-column in the empty uUp"inlgafnor!irjar by blowing gently across its mouth. If this coIumnpitch is higher than that of the fork it will be necessary to lower it by "shading," which is accomplished by partly closing the mouth of the jar with a card or other flat object. If, however, the pitch of the jar is lower than that of the fork, water may be poured in until their vibration numbers coincide. The point at which they are in unison may be easily determined, since the tone c the fork will become reinforced by the resonance of the air in the jar when the vibration numbers a...
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Seller's Description:
Good Minus. No Jacket. Book Covers are bent, slightly misaligned, and somewhat soiled. Some ink bleeding to inside covers. Previous owner's name on endpaper. Spine is tight; pgs are unmarked. The physical laws which underly the art/science of music.
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Seller's Description:
Very Good/Fine. No Jacket. Size: 8vo-over 7¾-9¾Tall; Type: Book This book published in 1912 explores the realtionship between music and sound. On page 98-99 there is some discoloring due to newspaper clippings.
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Seller's Description:
PLEASE NOTE, WE DO NOT SHIP TO DENMARK. New Book. Shipped from UK in 4 to 14 days. Established seller since 2000. Please note we cannot offer an expedited shipping service from the UK.
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Seller's Description:
PLEASE NOTE, WE DO NOT SHIP TO DENMARK. New Book. Shipped from UK in 4 to 14 days. Established seller since 2000. Please note we cannot offer an expedited shipping service from the UK.
Choose your shipping method in Checkout. Costs may vary based on destination.
Seller's Description:
PLEASE NOTE, WE DO NOT SHIP TO DENMARK. New Book. Shipped from UK in 4 to 14 days. Established seller since 2000. Please note we cannot offer an expedited shipping service from the UK.
Choose your shipping method in Checkout. Costs may vary based on destination.
Seller's Description:
PLEASE NOTE, WE DO NOT SHIP TO DENMARK. New Book. Shipped from UK in 4 to 14 days. Established seller since 2000. Please note we cannot offer an expedited shipping service from the UK.
