Letters On Natural Magic Addressed to Sir Walter Scott
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In our eReader you can find the full English version of the book. Read Letters On Natural Magic Addressed to Sir Walter Scott 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 Letters On Natural Magic Addressed to Sir Walter Scott
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To quickly assess the difficulty of the text, read a short excerpt:
Along fluid and solid bodies, its progress is still more rapid. Through water it moves at the rate of 4708 feet in a second, through tin at the rate of 8175 feet, and through iron, glass, and some kinds of wood, at the rate of 18, 530 feet.
When a number of single and separate sounds follow each other in rapid succession, they pro- duce a continued sound, in the same manner as a continuous circle of light is produced by whirling round a burning stick before the eye. In order that the sound may ...appear a single one to the ear, nearly sixteen separate sounds must follow one another every second. When these sounds are exactly similar, and recur at equal intervals, they form a musical sound. In order to produce such sounds frem the air, it must receive at least sixteen equally distant impulses or strokes in a second. The most common way of producing this effect is by a string or wire AB, Fig. 40, stretched between the fixed points A, B. If this string is taken by the middle and pulled aside, or if it is suddenly struck, it will vibrate between its two fixed points, as shown in the figure, passing alternately on each side of its axis AB, the vibrations gradually diminishing by the resistance of the air till the string is brought to rest.
What to read after Letters On Natural Magic Addressed to Sir Walter Scott?
You can find similar books in the "Read Also" column, or choose other free books by David Brewster to read onlineMoreLess
To quickly assess the difficulty of the text, read a short excerpt:
Along fluid and solid bodies, its progress is still more rapid. Through water it moves at the rate of 4708 feet in a second, through tin at the rate of 8175 feet, and through iron, glass, and some kinds of wood, at the rate of 18, 530 feet.
When a number of single and separate sounds follow each other in rapid succession, they pro- duce a continued sound, in the same manner as a continuous circle of light is produced by whirling round a burning stick before the eye. In order that the sound may ...appear a single one to the ear, nearly sixteen separate sounds must follow one another every second. When these sounds are exactly similar, and recur at equal intervals, they form a musical sound. In order to produce such sounds frem the air, it must receive at least sixteen equally distant impulses or strokes in a second. The most common way of producing this effect is by a string or wire AB, Fig. 40, stretched between the fixed points A, B. If this string is taken by the middle and pulled aside, or if it is suddenly struck, it will vibrate between its two fixed points, as shown in the figure, passing alternately on each side of its axis AB, the vibrations gradually diminishing by the resistance of the air till the string is brought to rest.
What to read after Letters On Natural Magic Addressed to Sir Walter Scott?
You can find similar books in the "Read Also" column, or choose other free books by David Brewster to read onlineMoreLess
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