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" When the sections of a river vary, the quantity of water remaining the same, the mean velocities are inversely as the areas of the sections. "
Iron: An Illustrated Weekly Journal for Iron and Steel Manufacturers ... - Page 245
edited by - 1848
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Outlines of Natural Philosophy: Being Heads of Lectures Delivered ..., Volume 1

John Playfair - Astronomy - 1812 - 344 pages
...be permanent, though in strictness this epithet is not applicable to the course of any river. 291. When the sections of a river vary, the quantity of...velocities are inversely as the areas of the sections. This must happen, in order to preserve the same quantity of discharge. N 3 SECT. SECT. III. PERCUSSION...
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Papers relating to the river Tyne

Newcastle-upon-Tyne river comm - Tyne, River (England) - 1836 - 62 pages
...water contributes greatly to its motion, so that it is not in proportion to the slope only."§ 5th. " When the sections of a river vary, the quantity of...velocities are inversely as the areas of the sections. This must happen in order to preserve the same quantity of discharge. 1 "!! * Encyclop. Britan. vol....
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The Mechanic's Magazine, Museum, Register, Journal and Gazette, Volume 45

1846 - 648 pages
...water contributes greatly to its motion, so that it is not in proportion to the slope only."J 5th. " When the sections of a river vary, the quantity of...velocities are inversely as the areas of the sections. This must happen in order to preserve the sameqnantity of discharge. "|| I may here add that Zendrini,...
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Mechanics' Magazine, Volume 48

Technology - 1848 - 652 pages
...following page, of a river with a rectangular bed, whose breadth = b, and depth — d, when R=-M and (5). But as I have before observed (ante p. 177),...follows that the velocity would be n times less at the ON THE LAW OF THE FLOW OF WATER IN OPEN CHANNELS. larger than at the lesser section, and if consequently,...
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The Conservation and Improvement of Tidal Rivers: Considered Principally ...

Edward Killwick Calver - Rivers - 1853 - 122 pages
...descending stream diminishes in rate directly it meets with an expanse according to the known law, that " when the sections of a river vary, the quantity...velocities are inversely as the areas of the sections," — the velocity of the upward current or stream of flood must also be diminished by such irregularities,...
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The Conservation and Improvement of Tidal Rivers: Considered Principally ...

Edward Killwick Calver - Rivers - 1853 - 122 pages
...the velocity increases, till, in very great velocities, it approaches to the ratio of equality. 5. When the sections of a river vary, the quantity of...velocities are inversely as the areas of the sections. 6. The mean velocity of a stream upon any one section is the arithmetical mean between the velocity...
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The Conservation and Improvement of Tidal Rivers: Considered Principally ...

Edward Killwick Calver - Rivers - 1853 - 122 pages
...the velocity increases, till, in very great velocities, it approaches to the ratio of equality. 5. When the sections of a river vary, the quantity of water remaining the same, the^mean velocities are inversely as the areas of the sections. 6. The mean velocity of a stream upon...
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Mathematics for Practical Men: Being a Common-place Book of Principles ...

Olinthus Gregory - 1863 - 482 pages
...applicable to the course of any river. 7. When the sections of a river vary, the quantity of wafer remaining the same, the mean velocities are inversely as the areas of the sections. This must happen, in order to preserve the same quantity of discharge. ( P lay fair' s Outlines.) 8....
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A Dictionary of Science, Literature, & Art: Comprising the ..., Volume 2

William Thomas Brande, George William Cox - Encyclopedias and dictionaries - 1866 - 972 pages
...(Playfair's Elemmts of Natural 2 These formulae are deduced from the experiments of Du Buat. Philosophy.) When the sections of a river vary, the quantity of...velocities are inversely as the areas of the sections ; but when the river reçoives a perwould appear from experiment that this last consequence only holds...
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Appleton's Dictionary of Machines, Mechanics, Engine-work, and ..., Volume 2

Mechanical engineering - 1874 - 1186 pages
...said to be permanent, though in strictness this epithet is not applicable to the course of any river. When the sections of a river vary, the quantity of...velocities are inversely as the areas of the sections. This must happen, in order to preserve the same quantity of discharge. The following table, abridged...
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