File:Popular Science Musical Test, 1931.jpg

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Description 1931 magazine feature describing hearing tests done at the University of Iowa Child Welfare Research Station. Out of the magazine Popular Science.
Date 1931
Source http://blog.modernmechanix.com/ blog entry, Scanned from (1931-08). "Tests Now Show If Child Is Tone Deaf Or Musical". Popular Science: 62.
Author Unknown authorUnknown author
Permission
(Reusing this file)
This work is in the public domain in the United States because it was published in the United States between 1929 and 1977, inclusive, without a copyright notice. For further explanation, see Commons:Hirtle chart as well as a detailed definition of "publication" for public art. Note that it may still be copyrighted in jurisdictions that do not apply the rule of the shorter term for US works (depending on the date of the author's death), such as Canada (50 p.m.a.), Mainland China (50 p.m.a., not Hong Kong or Macao), Germany (70 p.m.a.), Mexico (100 p.m.a.), Switzerland (70 p.m.a.), and other countries with individual treaties.

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 ; verified via Google Books that no copyright notice appeared within that issue of the magazine.

Transcript

Tests Now Show If Child Is Tone Deaf Or Musical

Has Junior a natural ear for music? Or are his piano lessons wasted effort? It’s easy to find out at once, according to Prof. Harold M. Williams, of the University of Iowa Child Welfare Research Station. Tests he has devised show whether a child has a real sense of rhythm and whether he can keep a tune in singing.

A rhythm hammer provides the first test. With it a child is asked to tap on a plate, in time with the clicks of a special electric clock. Electric wires lead from plate and clock to another room, where on a chart whirled by a phonograph turntable an automatic pen records how closely the child has followed the clock’s beat. In another test, a child is asked to sing a song he has learned. An experimenter sits near by with a telephone transmitter. In another room, a special photographic apparatus makes a sound picture of the child’s singing and shows whether he can carry a tune.


Popular Science

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current08:59, 2 January 2009Thumbnail for version as of 08:59, 2 January 2009640 × 305 (46 KB)Struthious Bandersnatch{{Information |Description=1931 article describing hearing tests done at the w:University of Iowa w:Child Welfare Research Station. Out of the magazine w:Popular Science. |Source=http://blog.modernmechanix.com/ [http://blog.modernmechanix.
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