Elements of Natural Philosophy |
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Page 17
... rotation . We may compound this with the ( equally calculable ) velocity of the earth in its orbit . This resultant again we may compound with the ( roughly - known ) velocity Vol . 23-2 of the sun relatively to the so - called fixed ...
... rotation . We may compound this with the ( equally calculable ) velocity of the earth in its orbit . This resultant again we may compound with the ( roughly - known ) velocity Vol . 23-2 of the sun relatively to the so - called fixed ...
Page 21
... rotating part is uniform . The motion of the treadle in a spinning - wheel approximates to the same condition when the wheel moves uniformly ; the approxi- mation being the closer , the smaller is the angular motion of the treadle and ...
... rotating part is uniform . The motion of the treadle in a spinning - wheel approximates to the same condition when the wheel moves uniformly ; the approxi- mation being the closer , the smaller is the angular motion of the treadle and ...
Page 29
... rotation of the plane of polarization of light , by quartz and certain fluids on the one hand , and by trans- parent bodies under magnetic forces on the other . It is a case of the hypotrochoid , and its corresponding mode of ...
... rotation of the plane of polarization of light , by quartz and certain fluids on the one hand , and by trans- parent bodies under magnetic forces on the other . It is a case of the hypotrochoid , and its corresponding mode of ...
Page 30
... rotation in its own plane about one point held fixed . To prove this , let A , B be any two points of the plane figure in a first position , A ' , B ' the position of the same two after a displacement . The lines AA , BB ' will not be ...
... rotation in its own plane about one point held fixed . To prove this , let A , B be any two points of the plane figure in a first position , A ' , B ' the position of the same two after a displacement . The lines AA , BB ' will not be ...
Page 31
... rotating about the point Q ; found by the method of § 91 by drawing per- pendiculars to OA and OB at A and B. Hence P for the instant revolves about Q , and thus its direction of motion , or the tangent to the ellipse , is perpendicular ...
... rotating about the point Q ; found by the method of § 91 by drawing per- pendiculars to OA and OB at A and B. Hence P for the instant revolves about Q , and thus its direction of motion , or the tangent to the ellipse , is perpendicular ...
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Common terms and phrases
acceleration action amount angular velocity anticlastic attraction axis called centimetre centre of gravity centre of inertia circle circular co-ordinates component configuration consider constant cord corresponding cosine couple curvature curve cylinder denote density described diagram displacement distance ellipse ellipsoid elongation equal equations equilibrium external point finite fixed point flexure fluid forces acting formulae friction geometrical given force Hence hodograph horizontal inclined infinitely small instant inversely kinetic energy length magnitude mass matter measured moment of inertia momentum moving normal section P₁ parallel parallelogram particle path pendulum perpendicular plane perpendicular portion position pressure principal axes principle produce projection proportional quantity radius radius of gyration reckoned rectangular relative right angles rigid body rotation round shear shell sides simple harmonic motion solid angle space spherical surface spiral square straight line strain stress suppose tangent theorem tion torsion uniform unit vertical weight whole wire