Tin-can telephone receiver
Item
Title (Dublin Core)
Tin-can telephone receiver
Subject (Dublin Core)
en
Technology
Article Title and/or Image Caption (Dublin Core)
Title: Inventions the war has brought out
Caption: Listening to the sound of heavy guns with the aid of a tin-can telephone receiver. A tin can, suspended from a copper wire which is wound about a pencil or penholder pressed against the bone back of the ear, makes an excellent instrument for detecting these sounds when they cannot be heard otherwise
Language (Dublin Core)
eng
Temporal Coverage (Dublin Core)
Date Issued (Dublin Core)
11916-03
Is Part Of (Dublin Core)
pages (Bibliographic Ontology)
364
Rights (Dublin Core)
Public domain
Source (Dublin Core)
Archived by (Dublin Core)
Filippo Valle