What's new in the world of air transportation : all radio signals travel in straight lines

Diagram demonstrates how radio signals travel in straight lines but can reflect off the Heaviside layer.

Publication date: 1937-05-30

Size: 8 x 10 cm

Publisher: Tribune Company

Print type: grayscale

Language:

• English

Genre(s):

• Diagrams

Type(s):

• still image
• text

Copyright(s):

• These materials are either in the public domain, according to U.S. copyright law, or permission has been obtained from rights owners. The digital version and supplementary materials are available for all educational uses worldwide.

Is part of:

• The Janet A. Ginsburg Chicago Tribune Image Collection

Source(s):

• Chicago Sunday Tribune (May 30, 1937), p. 10

Format(s):

• application/pdf
• image/jpeg