
Masters of Space - Sách nói Miễn phí
Tác giả: Walter Kellogg Towers
Ngôn ngữ: English
Thể loại: Thiên văn học, Vật lý & Cơ họcPhi hư cấuCông nghệ & Kỹ thuậtKhoa học
1 / 23Preface
- 1. Preface
- 2. Communication Among the Ancients
- 3. Signals Past and Present
- 4. Forerunners of the Telegraph
- 5. Inventions of Sir Charles Wheatstone
- 6. The Achievement of Morse
- 7. 'What Hath God Wrought?'
- 8. Development of the Telegraph System
- 9. Telegraphing Beneath the Sea
- 10. The Pioneer Atlantic Cable
- 11. A Successful Cable Attained
- 12. Alexander Graham Bell, The Youth
- 13. The Birth of the Telephone
- 14. The Telephone at the Centennial
- 15. Improvement and Expansion
- 16. Telegraphing Without Wires
- 17. An Italian Boy's Work
- 18. Wireless Telegraphy Established
- 19. The Wireless Serves the World
- 20. Speaking Across the Continent
- 21. Telephoning Through Space
- 22. Appendix A
- 23. Appendix B
Giới thiệu
This is the story of talking at a distance, of sending messages through space. It is the story of great men—Morse, Thomson, Bell, Marconi, and others—and how, with the aid of men like Field, Vail, Catty, Pupin, the scientist, and others in both the technical and commercial fields, they succeeded in flashing both messages and speech around the world, with wires and without wires. It is the story of how the thought of the world has been linked together by those modern wonders of science and of industry—the telegraph, the submarine cable, the telephone, the wireless telegraph, and, most recently, the wireless telephone. (From Preface) - Summary by Walter Kellogg Towers
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