Books with author Cynthia Cook

Title: Development of the Phonograph at Alexander Graham Bell's Volta LaboratoryContributions from the Museum of History and Technology, United States National Museum Bulletin 218, Paper 5, (pages 69-79)Author: Leslie J. NewvilleRelease Date: September 27, 2009 DEVELOPMENT OF THE PHONOGRAPH AT ALEXANDER GRAHAM BELL'S VOLTA LABORATORYBy Leslie J. NewvilleThe story of Alexander Graham Bell's invention of the telephone has been told and retold. How he became involved in the difficult task of making practical phonograph records, and succeeded (in association with Charles Sumner Tainter and Chichester Bell), is not so well known.But material collected through the years by the U. S. National Museum of the Smithsonian Institution now makes clear how Bell and two associates took Edison's tinfoil machine and made it reproduce sound from wax instead of tinfoil. They began their work in Washington, D. C., in 1879, and continued until granted basic patents in 1886 for recording in wax.Preserved at the Smithsonian are some 20 pieces of experimental apparatus, including a number of complete machines. Their first experimental machine was sealed in a box and deposited in the Smithsonian archives in 1881. The others were delivered by Alexander Graham Bell to the National Museum in two lots in 1915 and 1922. Bell was an old man by this time, busy with his aeronautical experiments in Nova Scotia.It was not until 1947, however, that the Museum received the key to the experime

Title: All Around the MoonAuthor: Jules VerneTranslator: Edward RothRelease Date: August 6, 2005 [EBook #16457]Language: EnglishCONTENTS.LIST OF ILLUSTRATIONS.PRELIMINARY CHAPTER,RESUMING THE FIRST PART OF THE WORK AND SERVING AS AN INTRODUCTION TO THE SECOND.A few years ago the world was suddenly astounded by hearing of an experiment of a most novel and daring nature, altogether unprecedented in the annals of science. The BALTIMORE GUN CLUB, a society of artillerymen started in America during the great Civil War, had conceived the idea of nothing less than establishing direct communication with the Moon by means of a projectile! President Barbican, the originator of the enterprise, was strongly encouraged in its feasibility by the astronomers of Cambridge Observatory, and took upon himself to provide all the means necessary to secure its success. Having realized by means of a public subscription the sum of nearly five and a half millions of dollars, he immediately set himself to work at the necessary gigantic labors.In accordance with the Cambridge men's note, the cannon intended to discharge the projectile was to be planted in some country not further than 28° north or south from the equator, so that it might be aimed vertically at the Moon in the zenith. The bullet was to be animated with an initial velocity of 12,000 yards to the second. It was to be fired off on the night of December 1st, at thirteen minutes and twenty seconds before eleven o'

Author: P. Gerald SanfordRelease Date: March 10, 2005 Language: EnglishTABLE OF CONTENTS.CHAPTER I.—INTRODUCTION.The Nitro-Explosives—Substances that have been Nitrated—The Danger Area— Systems of Professors Lodge, Zenger, and Melsens for the Protection of Buildings from Lightning, &c. CHAPTER II.—NITRO-GLYCERINE.Properties of Nitro-Glycerine—Manufacture—Nitration—Separation—Washing and Filtering—Drying, Storing, &c.—The Waste Acids—Their Treatment— Nitric Acid PlantsCHAPTER III.—NITRO-CELLULOSE, &C.Cellulose Properties—Discovery of Gun-Cotton—Properties of Gun-Cotton— Varieties of Soluble and Insoluble Gun-Cottons—Manufacture of Gun-Cotton— Dipping and SteepingWhirling Out the Acid—Washing, Boiling, Pulping, Compressing—The Waltham Abbey Process—Le Bouchet Process—Granulation of Gun-Cotton—Collodion-Cotton—Manufacture—Acid Mixture Used—Cotton Used, &c.—Nitrated Gun-Cotton—Tonite—Dangers in Manufacture of Gun-Cotton— Trench's Fire-Extinguishing Compound—Uses of Collodion-Cotton—Celluloid— Manufacture, &c.—Nitro-Starch, Nitro-Jute, and Nitro-Mannite CHAPTER IV.—DYNAMITE.Kieselguhr Dynamite—Classification of Dynamites—Properties and Efficiency of Ordinary Dynamite—Other forms of Dynamite—Gelatine and Gelatine Dynamites, Suitable Gun-Cotton for, and Treatment of—Other Materials Used—Composition of Gelignite—Blasting Gelatine—Gelatine Dynamite—Absorbing Materials—Wood Pulp—Potassium Nitrate, &c.— Manufacture, &c.—Apparatus Used—The Properties of the Gel