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Electrical Experimenter (06:05) September 1918

Hugo Gernsback, editor

"A number of French cities are equipped with specially designed sensitive microphone "listening-posts" placed on high buildings or other elevated structures, for the purpose of detecting the approach of enemy aircraft. An American inventor here proposes using small balloons which carry a series of horns pointing in various directions, each horn being connected with a super-sensitive microphone to indicate the approach of aircraft several miles away."
This is the September 1918 issue of Electrical Experimenter. The cover story is “Lassoing Aeroplanes with Flame and Bomb.” Other articles include using balloons to warn of air raids, demonstrating thought-transference, a review of the Gyro-Electric Destroyer article, and an editorial about generating cold from electricity.
Contents of this Issue:
  • Editorial: Cold From Electricity (H. Gernsback)
  • How the Electric “Sea Tanks” Raided Pola (H. Winfield Secor)
  • How Artillery Observation Balloons ‘Phone to Earth
  • Balloon Microphones to Warn of Air Raids (Lee A. Collins)
  • American Aviator Escapes Under Hun Electrified Fence
  • Making Synthetic Gems in the Electric Furnace (George Holmes)
  • Test Driving Machine to Undo U-Boats’ Work
  • Electricity and Radio as Used by “Movie” Spies (George Holmes)
  • Lassoing Aeroplanes with Bomb and Flame (H. Gernsback)
  • New Electrical Ideas on Submarines and Torpedoes
  • Popular Demonstration of Thought-Transference and Other Phenomena (Albert Abrams)
  • “Over There”–A Miniature War Panorama (George Holmes)
  • The Man Who Stayed at Home
  • The Blind Now Tape Electric Coils
  • New Electric Fuse Lighter for Blasting
  • Making Electricians Over Night
  • Popular Astronomy: The Sun and His Satellites–Third Paper (Isabel M. Lewis)
  • The Gyro-Electric Destroyer–Once More
  • The Phenomena of Electrical Conduction in Gases: Part V–Weighing an Ion (Rogers D. Rusk)
  • Experimental Physics: Lesson 15–Current Electricity (Cont.) (John J. Furia)
  • Radio Department: U.S. Signal Corps Radio Outfit in France
  • Cruft High Tension Radio Laboratory
  • The Einthoven Galvanometer–Its Theory, Operation and Construction (Samuel D. Cohen)
  • A Graph for Solving Wave Length Frequency Inductance and Capacity (E.M.T.)
  • The Constructor: A Simple Hand Milling Machine (Thomas Reed)
  • The Manipulation of Glass Tubing in the Experimental Laboratory: Part 1 (Herbert E. Metcalf)
  • Experimental Mechanics: Lesson VI–Thread Cutting and Metal Turning (Samuel D. Cohen)
  • Experimental Chemistry: 28th Lesson–Water, Hydrogen Peroxide and Ozone (Albert W. Wilsdon)
  • How-to-make-it
  • Wrinkles, Recipes, Formulas
  • Latest Patents
  • With the Amateurs
  • Phoney Patents
  • The Oracle
  • Book Review
  • Patent Advice (S. Gernsback)
  • Opportunity Ad-lets
  • Scientific Exchange Columns

Experimenter Publishing Company, Inc.
Editor: Hugo Gernsback
Issue: Volume 6: Number 5; Whole No. 65; September 1918
Pages: 72
Size: 9″ x 12″
Digital edition © 2010 Curtis Philips. All Rights Reserved.

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