Telephone An
The Telephone An Account of the Phenomena of Electricity, Magnetism, and Sound, as Involved in Its Action
作者：Dolbear, A. E. (Amos Emerson), 1837-1910
体例：题 章数：56
字数：103,219 来源：Project Gutenberg
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cache/epub/33154/pg33154.txt（Project Gutenberg）
章节目录
共 56 题- THE TELEPHONE
- By Professor A. E. Dolbear
- With directions for making a Speaking Telephone Illustrated 50 cents
- The Factors and Relations of Physical Science Illustrated $1.75
- Lee and Shepard Publishers Boston
- THE TELEPHONE:
- AN ACCOUNT OF THE
- AS INVOLVED IN ITS ACTION.
- WITH DIRECTIONS FOR MAKING
- A SPEAKING TELEPHONE.
- BY
- PROF. A. E. DOLBEAR,
- TUFTS COLLEGE,
- AUTHOR OF "THE ART OF PROJECTING," ETC.
- PREFACE.
- A. E. DOLBEAR.
- COLLEGE HILL, MASS.
- THE TELEPHONE.
- ELECTRICITY.
- MAGNETS.
- THE GALVANIC BATTERY.
- OTHER MEANS FOR GENERATING ELECTRICITY.
- THERMO-ELECTRICITY.
- MAGNETO-ELECTRICITY.
- MAGNETIC INDUCTION.
- MAGNETO-ELECTRIC MACHINES.
- SECONDARY CURRENTS.
- I give his table as taken from the "Proceedings of the Royal Society:"--
- 600 .0033 inch.
- WHAT IS ELECTRICITY?
- THEORIES.
- VELOCITY.
- SOUND.
- CONSTITUTION OF A SINGLE SOUND-WAVE.
- PITCH.
- LIMITS OF AUDIBILITY.
- 66.2 m. m. 20,000
- EFFECTS OF SOUND UPON OTHER BODIES.
- SYMPATHETIC VIBRATIONS.
- RESONANCE.
- Taking C with 128 vibrations, we have for this series:--
- TONE COMPOSITION.
- TONE COMPOSITION.
- FORM OF A COMPOUND SOUND-WAVE IN AIR.
- CORRELATION.
- HELMHOLTZ' ELECTRIC INTERRUPTOR.
- REISS' TELEPHONE.
- GRAY'S TELEPHONES.
- BELL'S TELEPHONE.
- FIRST FORM OF SPEAKING-TELEPHONE.
- THE AUTHOR'S TELEPHONE.
- Among these, I would mention the following:--
- 2. A magneto-electric telegraph.
- 5. The convertibility of sound into electricity.
- Page 42, "muturally" changed to "mutually" (bodies would mutually)
- Page 106, "outby" changed to "out by" (given out by the)