أنت هنا
قراءة كتاب Great Inventions and Discoveries
تنويه: تعرض هنا نبذة من اول ١٠ صفحات فقط من الكتاب الالكتروني، لقراءة الكتاب كاملا اضغط على الزر “اشتر الآن"
The Project Gutenberg eBook, Great Inventions and Discoveries, by Willis Duff Piercy
Title: Great Inventions and Discoveries
Author: Willis Duff Piercy
Release Date: September 30, 2011 [eBook #37574]
Language: English
Character set encoding: ISO-8859-1
***START OF THE PROJECT GUTENBERG EBOOK GREAT INVENTIONS AND DISCOVERIES***
E-text prepared by Albert László
and the Online Distributed Proofreading Team
(http://www.pgdp.net)
from page images generously made available by
Internet Archive
(http://www.archive.org)
| Note: | Images of the original pages are available through Internet Archive. See http://www.archive.org/details/greatinventionsd00pier |
The First Sheet from the Printing Press
GRADED SUPPLEMENTARY READING SERIES
GREAT INVENTIONS
AND DISCOVERIES
BY
WILLIS DUFF PIERCY
NEW YORK
CHARLES E. MERRILL COMPANY
Copyright, 1911
By Charles E. Merrill Co.
CONTENTS
| Chapter | Page | |
| I. | Introduction | 7 |
| II. | The Printing Press | 15 |
| III. | The Steam Engine | 30 |
| IV. | Electricity: The Telegraph and the Telephone | 56 |
| V. | Electricity: Lighting, Transportation, and Other Uses | 78 |
| VI. | The Discovery of America | 92 |
| VII. | Weapons and Gunpowder | 108 |
| VIII. | Astronomical Discoveries and Inventions | 127 |
| IX. | The Cotton-gin | 138 |
| X. | Anæsthetics | 147 |
| XI. | Steel and Rubber | 154 |
| XII. | Stenography and the Typewriter | 164 |
| XIII. | The Friction Match | 169 |
| XIV. | Photography | 177 |
| XV. | Clocks | 182 |
| XVI. | Some Machines | 188 |
| The Sewing Machine | 188 | |
| The Reaper | 192 | |
| Spinning and Weaving Machines | 197 | |
| XVII. | Aeronautics | 203 |
GREAT INVENTIONS AND DISCOVERIES
CHAPTER I
INTRODUCTION
Tens of thousands of years ago, when the world was even then old, primitive man came into existence. The first men lived in the branches of trees or in their hollow trunks, and sometimes in caves. For food they chased horses or caught fish from the streams along whose shores they lived. If they had clothing, it was the skins of wild beasts. Life was simple, slow, and crude. There were no cities, books, railroads, clocks, newspapers, schools, churches, judges, teachers, automobiles, or elections. Man lived with other animals and was little superior to them. These primitive men are called cave-dwellers.
A resident of modern New York sits down to a breakfast gathered from distant parts of the earth. He spreads out before him his daily