Elements of Natural Philosophy, Part 1 |
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Page 62
A Couple is a pair of equal forces acting in dissimilar directions in parallel lines .
The Moment of a couple is the sum of the moments of its forces about any point in
their plane , and is therefore equal to the product of either force into the shortest ...
A Couple is a pair of equal forces acting in dissimilar directions in parallel lines .
The Moment of a couple is the sum of the moments of its forces about any point in
their plane , and is therefore equal to the product of either force into the shortest ...
Page 63
Generally , unit of work is done by unit force acting through unit space . In lifting
coals from a pit , the amount of work done is proportional to the weight of the
coals lifted ; that is , to the force overcome in raising them ; and also to the height
...
Generally , unit of work is done by unit force acting through unit space . In lifting
coals from a pit , the amount of work done is proportional to the weight of the
coals lifted ; that is , to the force overcome in raising them ; and also to the height
...
Page 67
The case of the equilibrium of a number of forces acting at one point , is evidently
deducible at once from this ; for if we introduce one other force equal and
opposite to their resultant , this will produce a change of motion equal and
opposite to ...
The case of the equilibrium of a number of forces acting at one point , is evidently
deducible at once from this ; for if we introduce one other force equal and
opposite to their resultant , this will produce a change of motion equal and
opposite to ...
Page 70
principle of superposition of forces in equilibrium , all the forces acting on points
of the system form , with the reactions against acceleration , an equilibrating set
of forces on the whole system . This is the celebrated principle first explicitly
stated ...
principle of superposition of forces in equilibrium , all the forces acting on points
of the system form , with the reactions against acceleration , an equilibrating set
of forces on the whole system . This is the celebrated principle first explicitly
stated ...
Page 71
... continues moving uniformly in a straight line , unless in so far as the direction
or velocity of its motion is changed by forces acting mutually between them and
some other matter not belonging to them ; also that the centre of inertia of any
body ...
... continues moving uniformly in a straight line , unless in so far as the direction
or velocity of its motion is changed by forces acting mutually between them and
some other matter not belonging to them ; also that the centre of inertia of any
body ...
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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 experience 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 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, Part 1 Volume 23 of A library of universal literature. Science Clarendon Press series 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 |
| Export Citation | BiBTeX EndNote RefMan |