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File:Nuclear artillery test Grable Event - Part of Operation Upshot-Knothole.jpg

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English: GRABLE EVENT - Part of Operation Upshot-Knothole, was a 15-kiloton test fired from a 280-mm cannon on May 25, 1953 at the Nevada Proving Grounds. Frenchman's Flat, Nevada - Atomic Cannon TestHistory's first atomic artillery shell fired from the Army's new 280-mm artillery gun. Hundreds of high ranking Armed Forces officers and members of Congress are present. The fireball ascending.
Deutsch: Operation Upshot-Knothole - Grable (25. Mai 1953, Nevada Test Site, 15 kT) Grable war der erste Test einer nuklearen Artilleriegranate. Grable ist neben Priscilla das einzige Beispiel für eine doppellagige Wolke mit einem Feuerring. Die Rauchspuren im vorderen Teil des Bildes stammen von Raketen, die kurz vor der Zündung abgefeuert wurden, um die unsichtbare Druckwelle zu untersuchen.
Date Taken on 25 May 1953
Source
This image is available from the National Nuclear Security Administration Nevada Site Office Photo Library under number CIC 0315864.

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Author Federal government of the United States
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This work is in the public domain in the United States because it is a work prepared by an officer or employee of the United States Government as part of that person’s official duties under the terms of Title 17, Chapter 1, Section 105 of the US Code. Note: This only applies to original works of the Federal Government and not to the work of any individual U.S. state, territory, commonwealth, county, municipality, or any other subdivision. This template also does not apply to postage stamp designs published by the United States Postal Service since 1978. (See § 313.6(C)(1) of Compendium of U.S. Copyright Office Practices). It also does not apply to certain US coins; see The US Mint Terms of Use.
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Captions

Upshot-Knothole Grable detonation

Items portrayed in this file

depicts

Upshot-Knothole Grable

inception

25 May 1953

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Date/TimeThumbnailDimensionsUserComment
current01:52, 17 December 2009Thumbnail for version as of 01:52, 17 December 20092,945 × 2,338 (1.57 MB)HohumLevels, reduced blemishes.
19:07, 20 October 2009Thumbnail for version as of 19:07, 20 October 20092,945 × 2,338 (1.66 MB)Pieter Kuiperhigher resolution from http://narademo.umiacs.umd.edu/cgi-bin/isadg/viewobject.pl?object=95110
21:25, 18 August 2007Thumbnail for version as of 21:25, 18 August 2007587 × 471 (70 KB)Wikifreund{{Information |Description=GRABLE EVENT - Part of Operation Upshot-Knothole, was a 15-kiloton test fired from a 280-mm cannon on May 25, 1953 at the Nevada Proving Grounds. Frenchman's Flat, Nevada - Atomic Cannon TestHistory's first atomic artillery shel

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