Volume 1

A course of lectures on natural philosophy and the mechanical arts / by Thomas Young.

  • Young, Thomas, 1773-1829.
Date:
1845
Catalogue details

Licence: Public Domain Mark

Credit: A course of lectures on natural philosophy and the mechanical arts / by Thomas Young. Source: Wellcome Collection.

Provider: This material has been provided by King’s College London. The original may be consulted at King’s College London.

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    LECTURE V. On Confined Motion, 82. Motion limited by suspension, or by a smooth surface ; Effect of friction and of rotatory motion, 32. Inclined plane; Descent in the chords of a circle; Velocity of descent, 33. Ascending force; Energy; Cycloid; Cycloidal pendulums, 34. Laws of pendulums ; Swiiftest descent, 35. Circular pendulums; Pendu- lums with resistance; Revolving pendulums, 36. Composition of vibrations; Regulator for steam engines; Circular road; Principle of the least action, 37, 38. LECTURE VI. On the Motions of Simple Masses, 38. Definition of a moveable body, without regard to its extension; Inertia [gravity] ; Centre of inertia, 39. Its properties; Reciprocal forces ; Quantity of motion, 40. Momentum; Centre of inertia of a system; Motion of the centre of inertia, 41. Action and reaction, 42. Newton’s illustrations; Magnitude of reciprocal forces, 4.3. Fall of a feather and of a piece of gold; Lucretius; Relation between forces and distances; Displacement of the earth by the effect of a machine, 44. LECTURE VII. On Pkessure and Equilibrium, 45. Pressure, a force counteracted ; Pressure and momentum incommensurable, 45. Laws of pressure included in those of motion; Opposition of pressures, 46. I Equilibrium of mechanical powers ; Centre of gravity ; Stability of equilibrium, I 47. Stability independent of equilibrium, 48. Situation and motions of the I centre of gravity of animals, 49. Levers of two kinds; Fundamental property of jj the lever, 50. Series of levers ; Bent levers ; Oblique levers; Wheel and axis, i 51. Wheels and pinions ; Double axis ; Pullies, 52. Blocks; Smeaton’spullies; I Oblique ropes, 53. Inclined plane; Wedges, 54. Props, or shores ; Screws ; | Nuts; Hunter’s screw, 55. Determination of mechanical power from virtual ! velocities, 56. LECTURE VIII. On Collision, 57. Motions of various bodies acting reciprocally; Elastic bodies, 57. Nature of repulsion ; Experiment on an ivory ball; Apparatus for experiments on collision, , 58. Inelastic bodies; Energy, 59. Measure of force; Relation of labour to i energy; Preservation of energy; or of ascending force, 60. Effect of a blow; i Rotation, 61. Billiards ; Reflection, 62. J I LECTURE IX. ; On the Motions of Connected Bodies, 63. ; I Rotatory power; Consideration of the square of the velocit)', 63. Smeaton’s j apparatus; Centre of gyration ; Centre of percussion and of oscillation, 64. Free ,j | rotation ; Motion of a stick broken by a blow, 65. Preponderance, 66. Greatest j | I I