Original file (1,024 × 1,024 pixels, file size: 167 KB, MIME type: image/jpeg)

Summary

Description
English: Iron-rich sphere, found in the dust from the destruction of the World Trade Center on September 11, 2001; as documented by the United States Geological Survey. The solidified droplet indicates temperatures in excess of the melting point of iron (2795ºF).
Date
Source http://pubs.usgs.gov/of/2005/1165/graphics/IRON-04-IMAGE.jpg
Author United States Geological Survey, Particle Atlas of World Trade Center Dust

Licensing

Public domain
This image is in the public domain in the United States because it only contains materials that originally came from the United States Geological Survey, an agency of the United States Department of the Interior. For more information, see the official USGS copyright policy.

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copyright status

public domain

applies to jurisdiction: United States
determination method or standard: work of the federal government of the United States

inception

28 April 2005

instance of

scanning electron micrograph

fabrication method

scanning electron microscopy

data size

170,783 byte

height

1,024 pixel

width

1,024 pixel

media type

image/jpeg

checksum

f3d231b01bc0884eb828d42cbbfe5663a2e48289

determination method or standard: SHA-1

File history

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Date/TimeThumbnailDimensionsUserComment
current06:23, 15 August 2009Thumbnail for version as of 06:23, 15 August 20091,024 × 1,024 (167 KB)Cs32enEnhanced contrast.
02:01, 31 May 2009Thumbnail for version as of 02:01, 31 May 20091,024 × 1,024 (135 KB)Cs32en{{Information |Description={{en|1=Iron-rich sphere, found in the dust from the destruction of the World Trade Center on September 11, 2001; as documented by the United States Geological Survey.}} |Source=http://pubs.usgs.gov/of/2005/1165/graphics/IRON-04-

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