Elements of Natural Philosophy, Volume 1 |
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Page 4
In theory a pulley is simply a smooth body which changes the direction of a
flexible and inextensible cord stretched across part of its surface ; in practice ( to
escape as much as possible of the inevitable friction ) it is a wheel , on part of
whose ...
In theory a pulley is simply a smooth body which changes the direction of a
flexible and inextensible cord stretched across part of its surface ; in practice ( to
escape as much as possible of the inevitable friction ) it is a wheel , on part of
whose ...
Page 11
This is the case of a 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 ...
This is the case of a 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 ...
Page 20
Those common kinds of mechanism , for producing rectilineal from circular
motion , or vice versá , in which a crank moving in a circle works in a straight slot
belonging to a body which can only move in a straight line , fulfil strictly the
definition ...
Those common kinds of mechanism , for producing rectilineal from circular
motion , or vice versá , in which a crank moving in a circle works in a straight slot
belonging to a body which can only move in a straight line , fulfil strictly the
definition ...
Page 28
We now pass to the consideration of the displacement of a rigid body or group of
points whose relative positions are unalterable . The simplest case we can
consider is that of the motion of a plane figure in its own plane , and this , as far
as ...
We now pass to the consideration of the displacement of a rigid body or group of
points whose relative positions are unalterable . The simplest case we can
consider is that of the motion of a plane figure in its own plane , and this , as far
as ...
Page 29
It is not necessary to suppose the figure to be a mere flat disc or plane - for the
preceding statements apply to any one of a set of parallel planes in a rigid body ,
moving in any way subject to the condition that the points of any one plane in it ...
It is not necessary to suppose the figure to be a mere flat disc or plane - for the
preceding statements apply to any one of a set of parallel planes in a rigid body ,
moving in any way subject to the condition that the points of any one plane in it ...
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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