## Elements of Natural Philosophy |

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Page 1

This is merely mentioned now in order to show the necessity for , and the value of

, the preliminary

are many properties of motion , displacement , and deformation , which may be ...

This is merely mentioned now in order to show the necessity for , and the value of

, the preliminary

**matter**we are about to introduce . 6. Thus it appears that thereare many properties of motion , displacement , and deformation , which may be ...

Page 6

That there is at every instant a definite velocity for any moving point , is evident to

all , and is

gradually increases its speed , and every one understands what is meant by ...

That there is at every instant a definite velocity for any moving point , is evident to

all , and is

**matter**of everyday conversation . Thus , a railway train , after starting ,gradually increases its speed , and every one understands what is meant by ...

Page 42

... and we can easily form hhe conception from it of a sheet of ideal

perfectly dexible . It is very inextensible ; that is to say , 42 PRELIMINARY .

... and we can easily form hhe conception from it of a sheet of ideal

**matter**perfectly dexible . It is very inextensible ; that is to say , 42 PRELIMINARY .

Page 45

136 : If , when the

points of its substance which are initially at equal distances from one another in

parallel lines remain equidistant , it may be at an altered distance ; and in parallel

...

136 : If , when the

**matter**occupying any space is strained in any way , all pairs ofpoints of its substance which are initially at equal distances from one another in

parallel lines remain equidistant , it may be at an altered distance ; and in parallel

...

Page 50

... this follows the remarkable corol . lary that three pure strains produced one

after another , in any piece of

as to leave the body unstrained , but rotated through some angle about some

axis .

... this follows the remarkable corol . lary that three pure strains produced one

after another , in any piece of

**matter**, each without rotation , may be so adjustedas to leave the body unstrained , but rotated through some angle about some

axis .

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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