Ear model by Philipp Reis, 1930s
Rear view of the ear model of Johann Philipp Reis. Reis wanted to use it to understand how the ear functions and thus gained knowledge which he used to build an early telephone prototype in 1861. Photo from the 1930s
Picture No
13330364
Media ID
48318144
Size
2474px x 4962px
(792KB)
Credit
(c) Mary Evans / Sueddeutsche Zeitung Photo
Usage Restrictions
No model release, no property release. No commercial, merchandising or advertising use without release by SZ Photo
Source
SZ Photo - Scherl
Date
1930
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Build Functions Gained Knowledge Philipp Reis Thus Understand
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