How loud is the noise : Dr. William Braid White

Dr. William Braid White measures the noise levels of typewriter clatter with a noise meter. A man stands at his left and a woman can be seen using a typewriter behind them.

Publication date: 1934-07-22

Size: 11.6 x 15 cm

Publisher: Tribune Company

Print type: grayscale

Language:

• English

Subject(s):

• Scientific equipment--1930-1940
• Sounds
• Typewriters--1930-1940
• Typewriting--1930-1940
• White, William Braid, 1878-1959

Genre(s):

• Photographs

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 (July 22, 1934), p. 6

Format(s):

• application/pdf
• image/jpeg