Electrical Experimenter, 07:09 January 1920


Publisher: G-Books.com



This G-Book® downloadable e-magazine reproduces the January 1920 issue of Electrical Experimenter, Vol. 7, No. 9, Whole No. 81. The cover story is "First Wingless Airplane," introducing the helicopter. See the main contents listed next.

Main Contents of this Issue:

  • Editorial: A Celestial Short-Circuit (H. Gernsback)
  • Vertical Lighthouse Beams
  • The "Helicopter," A Vertical Airplane (Robert G. Skerrett)
  • Is the Electric Airplane Possible?
  • What Atomic Forces Could Do
  • Electric Locos Cross Mountains
  • Magnetic Storms (Lindley Pyle)
  • Swimming Pool Purified by Electric Rays (Joseph H. Kraus)
  • The World's Largest Theater
  • The Locomotive Periscope: Next! (George Wall)
  • Abolishing Smoke Electrically
  • The Electrical Engineer at Work (H. Winfield Secor)
  • Learning Telegraphy and Radio at School
  • A Model Helicopter (William John Beach)
  • Science in Latest Movies
  • Astern! With Engine Running Ahead! (Charles M. Ripley)
  • Popular Astronomy: The Einstein Theory of Relativity (Isabel M. Lewis)
  • The Mt. Wilson 100-Inch Reflecting Telescope (Floyd L. Darrow)
  • The First Automatic Telephone
  • Recording Daylight
  • The Structure of Electricity (Dr. Alfred Gradenwitz)
  • Is There a Sub-Electron? (Rogers D. Rusk)
  • Automobile News
  • The Amateur Magician (Joseph H. Kraus)
  • Practical Chemical Experiments (Albert W. Wilsdon)
  • The Constructor: Home-Made Arc Searchlight (Frank Calvert, Jr.)
  • A Small Rectifier for Charging Storage Batteries (Elliott A. White)
  • Calibrating Electrical Measuring Instruments (Thomas W. Benson)
  • Instrument for Measuring Radio-Activity (Ivan Crawford)
  • Selective Switch for Three or More Interphones
  • The Electrical Machinist: No. 3--Motor Journals and Bearings (H. Winfield Secor)
  • How-To-Make-It
  • Wrinkles, Recipes, Formulas (S. Gernsback)
  • Radio Department: The Radio Compass (Pierre H. Boucheron)
  • An Oscillion Radio Telephone and Telegraph
  • New Undamped Radio Receiver
  • Radio Fog Signaling A Success
  • New 165 Ft. Portable Radio Mast
  • Latest Patents
  • With the Amateurs
  • Science in Slang (Emerson Easterling)
  • The Oracle
  • Patent Advice (H. Gernsback)
  • Opportunity Ad-Lets

Publisher: Experimenter Publishing Company, Inc., 1920
Editor: Hugo Gernsback
Size: 9" x 12"
Issue: Volume 7: Number 9; Whole No. 81; January 1920
Pages: 124
Download Size: 73 MB (broadband connection recommended)
Resolution: 200 ppi resolution, sufficient to zoom to 200% actual size.
Copyright Status: ©2011 G-Books.com. All Rights Reserved.

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This title was added to our catalog on Monday 14 March, 2011.

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