## Elements of Natural Philosophy |

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Page 4

18. The simplest and most useful applications are to the Pulley and its

combinations . In theory a pulley is simply a smooth body which changes the

direction of a flexible and inextensible Pr cord stretched across part of its

in practice ...

18. The simplest and most useful applications are to the Pulley and its

combinations . In theory a pulley is simply a smooth body which changes the

direction of a flexible and inextensible Pr cord stretched across part of its

**surface**;in practice ...

Page 17

The intensity of heat and light emanating from a point , or from a uniformly

radiating spherical

distance from the centre . Hence the rate at which a planet receives heat and light

from ...

The intensity of heat and light emanating from a point , or from a uniformly

radiating spherical

**surface**, diminishes according to the inverse square of thedistance from the centre . Hence the rate at which a planet receives heat and light

from ...

Page 36

Consider a spherical

All points of this sphere attached to the body will move on a sphere fixed in space

. Hence the construction of 8.91 may be made , only with great circles ...

Consider a spherical

**surface**within the body , with its centre at the fixed point C.All points of this sphere attached to the body will move on a sphere fixed in space

. Hence the construction of 8.91 may be made , only with great circles ...

Page 37

... a similar pyramid ( the image in a plane mirror of the first position of the first ) all

round , it clearly comes back to its primitive position . This ( as all rolling of cones

) is exhibited best by taking the intersection of each with a spherical

... a similar pyramid ( the image in a plane mirror of the first position of the first ) all

round , it clearly comes back to its primitive position . This ( as all rolling of cones

) is exhibited best by taking the intersection of each with a spherical

**surface**. Page 41

It is to be understood here , that as the radii of curvature , have been considered

positive when both

either radius when the corresponding

It is to be understood here , that as the radii of curvature , have been considered

positive when both

**surfaces**are convex , the negative sign must be introduced foreither radius when the corresponding

**surface**is concave . Hence the angular ...### What people are saying - Write a review

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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 expression figure fixed fluid force friction give given gravity harmonic Hence increase infinitely small instant interval kinetic length less mass matter mean measured method motion moving natural normal observation opposite parallel particle passing path period perpendicular plane portion position potential practical pressure principle produce projection proportional quantity radius reference relative remain remarkable resistance respectively rest resultant right angles rigid rotation round sides simple solid space spherical square straight strain stress suppose surface theory turned uniform unit velocity vertical weight whole wire