Familiar lectures on natural philosophy, for the use of schools

Front matter

3 ^

-d rju o w

^MILIAR XECTURES

PART I. OF MATTER AND ITS MECnANICAL PROPERTIES

rAOK.

LECTURE 1. Introduction; or the objects and advantages of Science, 13

IC

11. or Abstract Science. Geometrical definitions,

Iir. or the Properties of Matter,

IV. Gravity, ....

V. Moti.)n and Force,

C(

VI. Of the Laws of Motion, .

IC

VII. Compound Motion,

CO

VIII. Acceleroted and Retarded Motion,

IX. Curvilinear Motion. Projectiles, u

X. Centre of Gravity,

Part II. Of The Mechanical Powers

LECTURE XI. Machines. The Cord. The Lever,

XII. The Lever continued.

XIII. The Inclined Plane,

XIV. The Pulley, ....

(C

XV. The Wheel and Axle. The Wedge. The Screw,

I(

XVL Friction. Moving Povirers. General remarks upon

Machinery, ....

it

XVII. The Pendulum,

I3a u

XVin. Locomotion, ,

Part III. Hydrostatics

LECTURE XIX. Mechanical Properties of Liquids, " XX. Pressure of Liquids,

" XXI. Specific Gravity,

" XXIL Hydraulics or Liquids in Motion,

145 149 161 171

Part IV. Pneumatics

LECTURE XXIII. .Piriform Bodies. Atmosphere. The Air,

" XXIV. Properties of Air, . . . .

" XXV. The Condensation of Air. Condensing Syringe,

Artificial Fountains. Air Gun. Diving Bell, " XXVI. Barometer. Eifect of Heat upon Air, .

" XXVIL Winds— Their Causes and Effects, I

194 200

VI

CONTENTS.

LECTURE XXVIII. Meteorology. Steam. Elastic Force of Steam.

Stcatn Engine, . . . .212

" XXIX. Atmospheric pi essure upon Water. Pumps. Syphons, 221

Part V. Acoustics

LECTURE XXX, Sonorous Bodies. Bells. Musical Strings, ^olian

" XXXL Medium of Sound. The Ear. Echo. Speaking

Trumpet. Velocity of Sound. Music. The Human Voice, ..... 233

Part VI. Optics

LECTURE XXXII. Light. Definitions. Motion of Light. Its Intensity. Of Reflection, Refraction and Inflection, 247 " XXXIII. Reflection from Mirrors. Plane Mirrors. Con-

vex Mirrors. Concave Mirrors, . . 254

XXXIV. Refraction of Light, , . .274

XXXV. Lenses, , . . . .286 " XXXVI. Visual Angle. Pore-Shortening. Perspective.

Intensity of Light and Shade. Convergence of the Optic Axes, ... - 294

" XXXVIf. Dm-ation of Impressions upon the Eye. Single

Vision. Imperfection of Vision. Optical Instruments. Shadow, . . . 306

" XXXVIII. Nature of Light. Decomposition of Light. Dis-

persion of Light. Rain-bow. Absorption of Light, . . . . .319

PART VII. ELECTRICiry ATs'D JIAGNETISM

LECTURE XXXIX. Theories of Electricity. Mode of obtaining Electricity. Conductors and Non-concluctors. Elec- ♦ tricul Apparatus and Experiments illustrating the Nature of Electricity, . . . 330

" XL. Atmospheric Electricity, . . .341

" XLI. Magnetism. Inclination of the Magnet. Declination

of the Compass, .... 345

Part VIII. Celestial Mechanics, Or Astronomy

LECTURE XLIL Introd'ictory Remarks, Armillary Sphere. Imaginary Circles. Tlie Solar Sj-stem. Planets. Comets. Ap. plication of Miichaaical Laws to Planetary Motion, 355 •* XLin. The Fixed Stars. The Constellations. Galaxy.

Nebulae. Coaclusiun. . . . Z$9

FAMILIAR LECTURES

ON

NATURAL PHILOSOPHY.

PART L

OF MATTER AND ITS MECHANICAL PROPERTIES.

LECTURE L