This is the August 1919 issue of Electrical Experimenter. The cover story is “Solving the Transportation Problem” by Hugo Gernsback. An article by Greenleaf Whittier Pickard describes his invention of the crystal detector. Another article discusses peacetime uses for war inventions following the end of World War I the previous year.
Contents of this Issue:
- Editorial: Speeds (H. Gernsback)
- Radio-Planes Watch Forests and Ranches
- Bomb Expert Eagan
- Peacetime Uses for War Inventions (H. Winfield Secor)
- Changing Nature’s Face
- Man’ Greatest Curse–Infected Teeth (Henry A. Cotton, MD)
- Solving the Transportation Problem (H. Gernsback)
- Measuring 1-5,000,000 of an Inch
- Paris Letter (Jacques Boyer)
- The “Torpedoplane” and “Sub” Spotter (George Holmes)
- Thunderstorm Electricity (Rogers D. Rusk, M.A.)
- “Ground Flying” for Aviators
- Electric Brush Contains Dynamo
- Inside of a U-Boat
- Locating Airplanes In Night Fighting
- Jeweled Portal Welcomes N.Y. Fighters
- Reviving Plants with Electricity
- Popular Astronomy: The Nature of Comets (Isabel M. Lewis)
- Steinmetz’s Own Shorthand
- A Hornless Phonograph
- Experiments in Physics: 1–Perpetual Motion (John J. Furia)
- $50.00 Prize Contest
- Airplane Parachute a Success
- The Constructor: How to Make Photo-Micrographs (G.D. Laudermilk)
- Faradic Currents–How to Apply Them
- X-Ray Experiments (Ivan Crawford)
- Heat Engines (John J. Furia, MA)
- Experimental Mechanics; Lesson XIII: Regarding Reamers (Samuel D. Cohen)
- How-To-Make-It: Automatic Electrolytic Interrupter
- Wrinkles, Recipes, Formulas (S. Gernsback)
- Radio Department: Airplane Antenna Reels (Lester F. Ryan)
- How I Invented the Crystal Detector (Greenleaf Whittier Pickard)
- A Review of Radio-Telephony
- American Radio-Telephone Apparatus
- Concentrated or Loop Aerials (Prof. Lloyd M. Knoll, A.M.)
- To War on an American Destroyer (A.H. Whedon)
- How to Develop Your Inventive Ability (Jay G. Hobson)
- Latest Patents
- With the Amateurs
- Science in Slang: What Makes the Storage Battery Store? (Emerson Easterling)
- The Oracle
- Patent Advice
- E.F.W. Alexanderson Wins “I.R.E.” Gold Medal
- Opportunity Ad-Lets
Publisher: Experimenter Publishing Company, Inc.
Editor: Hugo Gernsback
Issue: Volume 7: Number 4; Whole No. 76; August 1919
Pages: 96
Size: 9″ x 12″
Digital edition © 2006 Curtis Philips. All Rights Reserved.