Elements of Natural Philosophy, Volume 1 |
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Page 4
Hence , LA when P moves through any space in the direction of the cord , the
pulley B B moves in the same direction , through half the space . B ( 2 ) If there be
two cords and two pulleys , the ends AA ' being fixed , and the other end of AB ...
Hence , LA when P moves through any space in the direction of the cord , the
pulley B B moves in the same direction , through half the space . B ( 2 ) If there be
two cords and two pulleys , the ends AA ' being fixed , and the other end of AB ...
Page 6
23. The rate of motion of a point , or its rate of change of position , is called its
Velocity . It is greater or less as the space passed over in a given time is greater
or less : and it may be uniform , i.e. the same at every instant ; or it may be
variable .
23. The rate of motion of a point , or its rate of change of position , is called its
Velocity . It is greater or less as the space passed over in a given time is greater
or less : and it may be uniform , i.e. the same at every instant ; or it may be
variable .
Page 7
In fact , if v be the velocity at either beginning or end , or at any instant , of an
interval t , and s the space actually described in that interval ; the equation v = (
which expresses the definition of the average velocity , § 26 ) is more and more
nearly ...
In fact , if v be the velocity at either beginning or end , or at any instant , of an
interval t , and s the space actually described in that interval ; the equation v = (
which expresses the definition of the average velocity , § 26 ) is more and more
nearly ...
Page 8
These propositions are virtually equivalent to the following obvious geometrical
construction :To compound any two velocities as 9A , OB in the figure ; where OA
, for instance , represents in magniB tude and direction the space which would ...
These propositions are virtually equivalent to the following obvious geometrical
construction :To compound any two velocities as 9A , OB in the figure ; where OA
, for instance , represents in magniB tude and direction the space which would ...
Page 11
... body falling vertically in vacuo under the action of gravity . In this case the
space described in any interval is that which would be described in the same
time by a point moving uniformly with a velocity equal to that at the middle of the
interval .
... body falling vertically in vacuo under the action of gravity . In this case the
space described in any interval is that which would be described in the same
time by a point moving uniformly with a velocity equal to that at the middle of the
interval .
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Common terms and phrases
acceleration according acting action amount angle angular applied attraction axes axis body called centre centre of inertia circle component condition consider constant corresponding couple course curvature curve denote density described determined direction displacement distance divided effect elastic elements energy equal equations equilibrium evidently expression figure fixed fluid force friction give given gravity harmonic Hence important increase infinitely small instant interval kinetic length less mass matter mean measured method motion moving natural normal observation opposite parallel particle passing path perpendicular plane portion position potential practical pressure principle problem produce projection proportional quantity radius reference relative remain remarkable respectively rest resultant right angles rigid rotation round sides simple solid space spherical square straight strain stress suppose surface theory turned uniform unit velocity weight whole wire
Bibliographic information
| Title | Elements of Natural Philosophy, Volume 1 Volume 23 of A library of universal literature. Part one - Science [vol.23] Clarendon Press series Elements of Natural Philosophy, Peter Guthrie Tait Nineteenth Century Collections Online (NCCO): Science, Technology, and Medicine: 1780-1925 |
| Authors | William Thomson Baron Kelvin, Peter Guthrie Tait |
| Publisher | Clarendon Press, 1873 |
| Original from | the New York Public Library |
| Digitized | 24 May 2011 |
| Length | 279 pages |
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