有声读物: Scientific American Supplement, No. 446, July 19, 1884
- Download Improved Filter Presses audio
- Download Pneumatic Malting audio
- Download A New Form of Gas Washer audio
- Download The Wind Mill audio
- Download The Pneumatic Dynamite Gun audio
- Download Rope Pulley Friction Brake audio
- Download Wire Rope Towage audio
- Download Improved Hay-Rope Machine audio
- Download The Anglesea Bridge, Cork audio
- Download Portable Railways, Part 1 audio
- Download Portable Railways, Part 2 audio
- Download Gerard's Alternating Current Machine audio
- Download Automatic Fast Speed Telegraphy audio
- Download Theory of the Action of the Carbon Microphone--What Is It? audio
- Download The Dembinski Microphonic Telephone Transmitter audio
- Download New Gas Lighters audio
- Download Distribution of Heat Which Is Developed by Forging audio
- Download Tin in Canned Foods audio
- Download Technical Education in America audio
- Download The Anaesthetics of Jugglers audio
- Download The Deposition of Ores, Part 1 audio
- Download The Deposition of Ores, Part 2 audio
- Download The Deposition of Ores, Part 3 audio
- Download Habits of Burrowing Crayfishes in the United States audio
- Download Our Servants, The Microbes audio
- Download Epitaphium Chymicum audio
- Download A New Stove Climber - History of Wheat - Determination of Starch audio
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描述
The Scientific American may be the oldest continuously published periodical in the United States, havinge launched its first publication in 1845. It has been a mainstay of popular science with in depth articles across a broad spectrum of scientific fields. In this supplement are short articles ranging through such topics as Pneumatic Malting, Improved Hay-Rope Machine, Automatic Fast Speed Telegraphy, and Tin in Canned Foods Our Servants, The Microbes - Summary by Larry Wilson
您正在收听 Scientific American Supplement, No. 446, July 19, 1884 - Various.
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