Battle of Backbone Mountain

Original file ‎(5,160 × 2,696 pixels, file size: 1.73 MB, MIME type: image/jpeg)

Summary

DescriptionOperation Crossroads Baker (wide).jpg	English: The "Baker" explosion, part of Operation Crossroads, a nuclear weapon test by the United States military at Bikini Atoll, Micronesia, on 25 July 1946. The wider, exterior cloud is actually just a condensation cloud caused by the Wilson chamber effect, and was very brief. The actual mushroom cloud is inside the condensation cloud (compare with this image, a photo taken slightly later, after the condensation cloud had cleared). The water released by the explosion was highly radioactive and contaminated many of the ships that were set up near it. Some were otherwise undamaged and sent to Hunter's Point in San Francisco, California, United States for decontamination. Those which could not be decontaminated were sunk a number of miles off the coast of San Francisco.
Date	25 July 1946
Source	Library of Congress
Author	United States Department of Defense (either the U.S. Army or the U.S. Navy)
Other versions	Derivative works of this file: Operation Crossroads Baker in color.jpg Restored version

Object location	11° 34′ 58.8″ N, 165° 22′ 58.8″ E	View this and other nearby images on: OpenStreetMap	11.583000; 165.383000

Licensing

This image is a work of a U.S. military or Department of Defense employee, taken or made as part of that person's official duties. As a work of the U.S. federal government, the image is in the public domain in the United States.

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File history

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

	Date/Time	Dimensions	User	Comment
current	18:14, 26 May 2009	5,160 × 2,696 (1.73 MB)	AzaToth	reduce noise
	01:03, 1 May 2009	5,160 × 2,696 (2.04 MB)	Mgiganteus	higher resolution
	15:28, 11 July 2008	1,508 × 764 (518 KB)	Fastfission~commonswiki	high res version from LOC
	00:25, 13 August 2005	600 × 432 (54 KB)	Fastfission~commonswiki	The "Baker" shot of Operation Crossroads, at the Bikini Atoll, 1946. Picture is either an Army or Navy photo. {{PD-USGov}} Category:Nuclear tests Category:1946