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Theater Television

Our Search for the Supernatural--IV

Did Sir Oliver Lodge Write the Message?

By A.D. Rathbone

A Bottle-Neck Breaker

Welding Presents Advantages of Speed and Low Cost to Machine Tool Industry

By Ed C. Powers

Portable Substation, Protection, and more

Transformer on Wheels for Emergency Use

Wartime Astronomy

A Mere War Does Not Sidetrack European Astronomers from Regular Work

By Henry Norris Russell

Radio Runs a Transit

Accurate Ocean-Floor Topographic Maps Made Through Acoustical Surveys

By Gilbert T. Rude

Oil Wells, Cosmic Rays

Sciences Beat Hunches in Discovering New 1940 Fields

Pilots, Pilots, More Pilots

Encouragement of Glider Clubs Would Provide Ample Raw Material for Military Needs

By E. F. McDonald

Green-Bouses for Bombers

Plastic Enclosures Reduce Plane Weight, Hence Increase Speed or Bomb Capacity

More Power to the South

Development of South Carolina Engineering Project Will Provide for New Industries

By Hamilton M. Wright

Sampling, Mine Locomotives

New Apparatus for Taking Sea Bed Samples

Television Today

Commercial Operation, Large-Screen Projection, and Color Are Recent Developments

By A. P. Peck

Quiet Offices, Stutterers, and more

Precision Filing, Thermostat, and more

Reciprocating Hand Tool For Semi-Skilled Labor

Helicopter Records

Rotary Aircraft Operates as Seaplane Or Amphibian Helicopter

By Alexander Klemin

Dive Bomber, Self Sealing Tanks

America Produces Outstanding Navy Plane


  • 50 Years Ago, July 1941

  • From the Editor

    Our Point of View, July 1941

  • Recommended

    Our Book Corner, July 1941

  • Departments

    Personalities in Science, July 1941

  • Industrial Trends, July 1941

  • Camera Angles, July 1941

  • Your Firearms and Fishing Tackle, July 1941

  • Telestopics, July 1941

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