Produced by Chris Curnow, Julia Neufeld and the Online Distributed Proofreading Team at https://www.pgdp.net (This file was produced from images generously made available by The Internet Archive) Transcriber's note: For this text version passages in italics are indicated by _underscores_. Small caps have been replaced by ALL CAPS and subscripts are denoted as _{2}. * * * * * [Illustration: cover] [Illustration: _By permission of Messrs. Chance Bros, and Co., Ltd._ A HUGE LAMP The marvellous arrangement of lenses and prisms which enables the lighthouse to send out its guiding flashes, with the mechanism for turning it. Made for "Chilang" Lighthouse, China _Frontispiece_] MARVELS OF SCIENTIFIC INVENTION AN INTERESTING ACCOUNT IN NON-TECHNICAL LANGUAGE OF THE INVENTION OF GUNS, TORPEDOES, SUBMARINES MINES, UP-TO-DATE SMELTING, FREEZING, COLOUR PHOTOGRAPHY, AND MANY OTHER RECENT DISCOVERIES OF SCIENCE BY THOMAS W. CORBIN AUTHOR OF "ENGINEERING OF TO-DAY," "MECHANICAL INVENTIONS OF TO-DAY," "THE ROMANCE OF SUBMARINE ENGINEERING," _&c., &c._ WITH 32 ILLUSTRATIONS & DIAGRAMS PHILADELPHIA J. B. LIPPINCOTT COMPANY LONDON: SEELEY, SERVICE & CO. LTD. 1917 CONTENTS CHAPTER PAGE I. DIGGING WITH DYNAMITE 9 II. MEASURING ELECTRICITY 22 III. THE FUEL OF THE FUTURE 42 IV. SOME VALUABLE ELECTRICAL PROCESSES 55 V. MACHINE-MADE COLD 67 VI. SCIENTIFIC INVENTIONS AT SEA 78 VII. THE GYRO-COMPASS 90 VIII. TORPEDOES AND SUBMARINE MINES 98 IX. GOLD RECOVERY 109 X. INTENSE HEAT 123 XI. AN ARTIFICIAL COAL MINE 137 XII. THE MOST STRIKING INVENTION OF RECENT TIMES 149 XIII. HOW PICTURES CAN BE SENT BY WIRE 176 XIV. A WONDERFUL EXAMPLE OF SCIENCE AND SKILL 191 XV. SCIENTIFIC TESTING AND MEASURING 198 XVI. COLOUR PHOTOGRAPHY 212 XVII. HOW SCIENCE AIDS THE STRICKEN COLLIER 220 XVIII. HOW SCIENCE HELPS TO KEEP US WELL 231 XIX. MODERN ARTILLERY 236 APPENDIX 245 INDEX 247 LIST OF ILLUSTRATIONS A Huge Lamp _Frontispiece_ FACING PAGE First Effect of the Dynamite 16 A Fine Crop 24 Apple-tree planted by Spade 48 Machine-made Ice 72