Twentieth Century InventionsTWENTIETH CENTURY INVENTIONSReading editionChapter navigation50 reading sectionsGo to chapterChoose a chapter…TWENTIETH CENTURY INVENTIONSPREFACE.Chapter IChapter IIChapter IIIChapter IVChapter VChapter VIChapter VIIChapter VIIIChapter IXChapter XChapter XIChapter XIIChapter XIIIChapter XIVSCIENTIFIC WORKSCHEMISTRY.PHYSICS, ETC.MECHANICS, DYNAMICS, STATICS, HYDROSTATICS, ETC.OPTICS AND PHOTOGRAPHY.SOUND, LIGHT, HEAT, AND THERMODYNAMICS.STEAM, OIL, AND GAS ENGINES.BUILDING CONSTRUCTION.ELECTRICITY AND MAGNETISM.TELEGRAPHY AND THE TELEPHONE.ENGINEERING, STRENGTH OF MATERIALS, ETC.LONGMANS' CIVIL ENGINEERING SERIES.NAVAL ARCHITECTURE.MACHINE DRAWING AND DESIGN.WORKSHOP APPLIANCES, ETC.MINERALOGY, METALLURGY, ETC.ASTRONOMY, NAVIGATION, ETC.WORKS BY RICHARD A. PROCTOR.PHYSIOGRAPHY AND GEOLOGY.NATURAL HISTORY AND GENERAL SCIENCE.MANUFACTURES, TECHNOLOGY, ETC.HEALTH AND HYGIENE.MEDICINE AND SURGERY.VETERINARY MEDICINE, ETC.PHYSIOLOGY, BIOLOGY, BACTERIOLOGY, AND ZOOLOGY.BOTANY AND GARDENING.AGRICULTURE.WORKS BY JOHN TYNDALL, D.C.L., LL.D., F.R.S.TEXT-BOOKS OF SCIENCE.ADVANCED SCIENCE MANUALS.ELEMENTARY SCIENCE MANUALS.THE LONDON SCIENCE CLASS-BOOKS.PRACTICAL ELEMENTARY SCIENCE SERIES.TRANSCRIBER'S NOTESBeginning of this editionNext chapter →PREFACE.All chapters and sections (50)Other sectionsTWENTIETH CENTURY INVENTIONSPREFACE.Chapters1234567891011121314Other sectionsSCIENTIFIC WORKSCHEMISTRY.PHYSICS, ETC.MECHANICS, DYNAMICS, STATICS, HYDROSTATICS, ETC.OPTICS AND PHOTOGRAPHY.SOUND, LIGHT, HEAT, AND THERMODYNAMICS.STEAM, OIL, AND GAS ENGINES.BUILDING CONSTRUCTION.ELECTRICITY AND MAGNETISM.TELEGRAPHY AND THE TELEPHONE.ENGINEERING, STRENGTH OF MATERIALS, ETC.LONGMANS' CIVIL ENGINEERING SERIES.NAVAL ARCHITECTURE.MACHINE DRAWING AND DESIGN.WORKSHOP APPLIANCES, ETC.MINERALOGY, METALLURGY, ETC.ASTRONOMY, NAVIGATION, ETC.WORKS BY RICHARD A. PROCTOR.PHYSIOGRAPHY AND GEOLOGY.NATURAL HISTORY AND GENERAL SCIENCE.MANUFACTURES, TECHNOLOGY, ETC.HEALTH AND HYGIENE.MEDICINE AND SURGERY.VETERINARY MEDICINE, ETC.PHYSIOLOGY, BIOLOGY, BACTERIOLOGY, AND ZOOLOGY.BOTANY AND GARDENING.AGRICULTURE.WORKS BY JOHN TYNDALL, D.C.L., LL.D., F.R.S.TEXT-BOOKS OF SCIENCE.ADVANCED SCIENCE MANUALS.ELEMENTARY SCIENCE MANUALS.THE LONDON SCIENCE CLASS-BOOKS.PRACTICAL ELEMENTARY SCIENCE SERIES.TRANSCRIBER'S NOTESTWENTIETH CENTURY INVENTIONS A ForecastBY GEORGE SUTHERLAND, M.A. LONGMANS, GREEN, AND CO. 39 PATERNOSTER ROW, LONDON NEW YORK AND BOMBAY 1901PREFACE. →