Jump to content

File:Bell telephone magazine (1922) (14756235595).jpg

Page contents not supported in other languages.
This is a file from the Wikimedia Commons
From Wikipedia, the free encyclopedia

Original file (996 × 1,246 pixels, file size: 148 KB, MIME type: image/jpeg)

Summary

Description
English:

Identifier: belltelephonemag4344amerrich (find matches)
Title: Bell telephone magazine
Year: 1922 (1920s)
Authors: American Telephone and Telegraph Company American Telephone and Telegraph Company. Information Dept
Subjects: Telephone
Publisher: (New York, American Telephone and Telegraph Co., etc.)
Contributing Library: Prelinger Library
Digitizing Sponsor: Internet Archive

View Book Page: Book Viewer
About This Book: Catalog Entry
View All Images: All Images From Book
Click here to view book online to see this illustration in context in a browseable online version of this book.

Text Appearing Before Image:
a nuclear explosion andprotect the vision of U.S. airmen againstflash blindness. The goggles employ a colloidal mixture ofgraphite suspended in a fluid, which is storedin a reservoir above the double lenses. Whenan intense flash occurs which threatensserious eye damage, it is detected by a photosensor in the airmans helmet. The sensortriggers a pencil-sized explosive, which pro-pels the opaque mixture into a narrow gapbetween the front and rear lens plates of thegoggles. The graphite covers the lens in thefew microseconds before the light has timeto damage a pilots eyes—in less time thanit takes to wink. After the danger has passed,the blackened goggles can be replaced withclear ones. The unique device works by means of asystem designed and developed at the SandiaCorporation, a subsidiary of the Western Elec-tric Company, which has an important rolein Americas nuclear defenses. Sandia—withscientific laboratories and facilities at Albu-querque, N.M. and Livermore, Calif.—con- 59
Text Appearing After Image:
Airman denionstrales new goggles designedto protect eyesight from a nuclear flash. ducts special projects for the Atomic EnergyCommission under a non-profit contract, andwas asked to work on the eye protectionsystem because of its experience in develop-ing explosive devices. and the film negative then can be used tomake, by conventional techniques, a plate forsubsequent printing. The system is considerably more flexiblethan any other way of setting type. In othermethods of type setting, type faces are storedas shapes on metal, glass or film. To changestyles, it is necessary to manipulate metalforms, glass wheels or strips of film. In thenew Bell Laboratories system, the type facesare stored in digital form. To change typefaces, only the program instruction must bechanged. A change could be made quickly,for example, from English to Chinesecharacters. The new system has been implemented atBell Laboratories in an experimental set-upthat includes a digital logic network, a cath-ode ray tu

Note About Images

Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original work.
Date
Source

https://www.flickr.com/photos/internetarchivebookimages/14756235595/

Author Internet Archive Book Images
Permission
(Reusing this file)
At the time of upload, the image license was automatically confirmed using the Flickr API. For more information see Flickr API detail.
Volume
InfoField
43-44
Flickr tags
InfoField
Flickr posted date
InfoField
27 July 2014

Licensing

This image was taken from Flickr's The Commons. The uploading organization may have various reasons for determining that no known copyright restrictions exist, such as:
  1. The copyright is in the public domain because it has expired;
  2. The copyright was injected into the public domain for other reasons, such as failure to adhere to required formalities or conditions;
  3. The institution owns the copyright but is not interested in exercising control; or
  4. The institution has legal rights sufficient to authorize others to use the work without restrictions.

More information can be found at https://flickr.com/commons/usage/.


Please add additional copyright tags to this image if more specific information about copyright status can be determined. See Commons:Licensing for more information.
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.

العربية  беларуская (тарашкевіца)  čeština  Deutsch  Ελληνικά  English  español  français  Bahasa Indonesia  italiano  日本語  한국어  македонски  Nederlands  português  русский  sicilianu  slovenščina  ไทย  Tiếng Việt  中文(简体)  中文(繁體)  +/−

Flag of the United States
Flag of the United States
This image was originally posted to Flickr by Internet Archive Book Images at https://flickr.com/photos/126377022@N07/14756235595. It was reviewed on 17 September 2015 by FlickreviewR and was confirmed to be licensed under the terms of the No known copyright restrictions.

17 September 2015

Captions

Add a one-line explanation of what this file represents

Items portrayed in this file

depicts

image/jpeg

f1bf26734e5105fc26b4f7af3aae946b41922efe

151,575 byte

1,246 pixel

996 pixel

File history

Click on a date/time to view the file as it appeared at that time.

Date/TimeThumbnailDimensionsUserComment
current17:46, 17 September 2015Thumbnail for version as of 17:46, 17 September 2015996 × 1,246 (148 KB)== {{int:filedesc}} == {{subst:chc}} {{information |description={{en|1=<br> '''Identifier''': belltelephonemag4344amerrich ([https://commons.wikimedia.org/w/index.php?title=Special%3ASearch&profile=default&fulltext=Search&search=insource%3A%2Fbelltelep...

The following page uses this file: