Philosophy in Sport Made Science in Earnest Being An Attempt to Illustrate the
The book Philosophy in Sport Made Science in Earnest Being An Attempt to Illustrate the was written by author John Ayrton Paris Here you can read free online of Philosophy in Sport Made Science in Earnest Being An Attempt to Illustrate the book, rate and share your impressions in comments. If you don't know what to write, just answer the question: Why is Philosophy in Sport Made Science in Earnest Being An Attempt to Illustrate the a good or bad book?
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Seymour concurred in this opinion, and immediately afforded the following explanation: "An echo is nothing more than a reflected sound. When the aerial vibrations strike against any obstacle of sufficient magnitude, they are reflected back to the ear, and produce a repetition of the sound, which will appear to proceed from the point whence they are reflected, so that the apparent direction of the voice 304 PHTLOSOPHY IN SPORT CHAP. XIX. becomes completely changed by an echo. A considerable exte...nt of level wall will sometimes produce it in great per- fection ; for a smooth surface reflects sound much better than a rough one : but the circumstance which, perhaps, contributes more than any other to the perfection of an echo, is the form of the reflecting surface ; a convex surface is a very bad reflector of sound, a flat one reflects very well, but a small degree of concavity is the form best adapted to 'the purpose/' "I believe, " observed the vicar, " that fluid bodies, will also, under certain circumstances, so reflect sound as to pro- duce echoes.
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