Experimental Mechanics / A Course of Lectures Delivered at the Royal College of Science for Ireland
THE PATH OF A PROJECTILE IS A PARABOLA.
EXPERIMENTAL MECHANICS
A COURSE OF LECTURES
DELIVERED AT THE ROYAL COLLEGE OF SCIENCE FOR IRELAND
BY SIR ROBERT STAWELL BALL, LL.D., F.R.S. ASTRONOMER ROYAL OF IRELAND
FORMERLY PROFESSOR OF APPLIED MATHEMATICS AND MECHANISM IN THE ROYAL COLLEGE OF SCIENCE FOR IRELAND (SCIENCE AND ART DEPARTMENT)
WITH ILLUSTRATIONS
SECOND EDITION
London MACMILLAN AND CO. AND NEW YORK 1888.
The Right of Translation and Reproduction is reserved
Richard Clay and Sons, Limited, LONDON AND BUNGAY.
Robert S. Ball
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EXPERIMENTAL MECHANICS
PREFACE.
TABLE OF CONTENTS.
INTRODUCTION.
THE DEFINITION OF FORCE.
THE MEASUREMENT OF FORCE.
EQUILIBRIUM OF TWO FORCES.
EQUILIBRIUM OF THREE FORCES.
INTRODUCTION.
ONE FORCE RESOLVED INTO TWO FORCES.
EXPERIMENTAL ILLUSTRATIONS.
SAILING.
THE JIB AND TIE ROD.
INTRODUCTION.
THE COMPOSITION OF PARALLEL FORCES.
THE COUPLE.
THE WEIGHING SCALES.
INTRODUCTION.
SPECIFIC GRAVITY.
THE PLUMMET AND SPIRIT-LEVEL.
THE CENTRE OF GRAVITY.
STABLE AND UNSTABLE EQUILIBRIUM.
THE NATURE OF FRICTION.
THE MODE OF EXPERIMENTING.
A MORE ACCURATE LAW OF FRICTION.
THE ANGLE OF FRICTION.
ANOTHER LAW OF FRICTION.
CONCLUDING REMARKS.
INTRODUCTION.
THE USE OF THE PULLEY.
LARGE AND SMALL PULLEYS.
THE LAW OF FRICTION IN THE PULLEY.
WHEELS.
ENERGY.
INTRODUCTION.
THE SINGLE MOVEABLE PULLEY.
THE THREE-SHEAVE PULLEY-BLOCK.
THE DIFFERENTIAL PULLEY-BLOCK.
THE EPICYCLOIDAL PULLEY-BLOCK.
THE LEVER OF THE FIRST ORDER.
THE LEVER OF THE SECOND ORDER.
THE LEVER OF THE THIRD ORDER.
THE INCLINED PLANE WITHOUT FRICTION.
THE INCLINED PLANE WITH FRICTION.
THE SCREW.
THE SCREW-JACK.
THE SCREW BOLT AND NUT.
INTRODUCTION.
EXPERIMENTS UPON THE WHEEL AND AXLE.
FRICTION UPON THE AXLE.
THE WHEEL AND BARREL.
THE WHEEL AND PINION.
THE CRANE.
CONCLUSION.
INTRODUCTION
THE GENERAL PROPERTIES OF TIMBER.
RESISTANCE TO EXTENSION.
RESISTANCE TO COMPRESSION.
A BEAM UNIFORMLY LOADED.
INTRODUCTION.
WEIGHT SUSTAINED BY TIE AND STRUT.
A BRIDGE WITH TWO STRUTS.
A BRIDGE WITH FOUR STRUTS.
A BRIDGE WITH TWO TIES.
A SIMPLE FORM OF TRUSS.
THE WYE BRIDGE.
INTRODUCTION.
THE GIRDER.
THE TUBULAR BRIDGE.
THE SUSPENSION BRIDGE.
INTRODUCTION.
THE FIRST LAW OF MOTION.
A BODY FALLS 16' IN THE FIRST SECOND.
HOW THE FORCE OF GRAVITY IS DEFINED.
THE PATH OF A PROJECTILE IS A PARABOLA.
INERTIA.
THE HAMMER.
THE STORING OF ENERGY.
THE FLY-WHEEL.
THE PUNCHING MACHINE.
THE NATURE OF CIRCULAR MOTION.
THE APPLICATIONS OF CIRCULAR MOTION.
THE PERMANENT AXES.
INTRODUCTION.
THE CIRCULAR PENDULUM.
THE CYCLOID.
THE COMPOUND PENDULUM.
THE CENTRE OF OSCILLATION.
THE CENTRE OF PERCUSSION.
THE CONICAL PENDULUM.
THE COMPOSITION OF VIBRATIONS.
INTRODUCTION.
THE COMPENSATING PENDULUM.
THE ESCAPEMENT.
THE TRAIN OF WHEELS.
THE HANDS.
THE STRIKING PARTS.
APPENDIX I.
APPENDIX II.
INDEX.
