File:PSM V21 D439 Rock fracture and excavation using tapered needle.jpg

From Wikisource
Jump to navigation Jump to search

Original file (1,432 × 1,306 pixels, file size: 320 KB, MIME type: image/jpeg)

Description Rock fracture and excavation using tapered needle
Date
Source Popular Science Monthly Volume 21
Author Unknown authorUnknown author
Permission
(Reusing this file)
Public domain

This work is in the public domain in its country of origin and other countries and areas where the copyright term is the author's life plus 70 years or fewer.

You must also include a United States public domain tag to indicate why this work is in the public domain in the United States.
 Note that a few countries have copyright terms longer than 70 years: Mexico has 100 years, Jamaica has 95 years, Colombia has 80 years, and Guatemala and Samoa have 75 years. This image may not be in the public domain in these countries, which moreover do not implement the rule of the shorter term. Honduras has a general copyright term of 75 years, but it does implement the rule of the shorter term. Copyright may extend on works created by French who died for France in World War II (more information), Russians who served in the Eastern Front of World War II (known as the Great Patriotic War in Russia) and posthumously rehabilitated victims of Soviet repressions (more information).
This file has been identified as being free of known restrictions under copyright law, including all related and neighboring rights.

Captions

Add a one-line explanation of what this file represents

Items portrayed in this file

depicts

data size

327,608 byte

height

1,306 pixel

width

1,432 pixel

media type

image/jpeg

checksum

0eac753cfb1137bedaedba9f030a20d5eb00c222

determination method or standard: SHA-1

File history

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

Date/TimeThumbnailDimensionsUserComment
current05:13, 26 August 2010Thumbnail for version as of 05:13, 26 August 20101,432 × 1,306 (320 KB)Ineuw{{Information |Description = Rock fracture and excavation using tapered needle |Source = http://en.wikisource.org/wiki/Page:Popular_Science_Monthly_Volume_21.djvu/439 |Date = 1882 |Author = Unknown |Permission = {{PD-old}} |other_versions = }} [[C

Metadata

This file contains additional information, probably added from the digital camera or scanner used to create or digitize it.

If the file has been modified from its original state, some details may not fully reflect the modified file.

Retrieved from "https://en.wikisource.org/wiki/File:PSM_V21_D439_Rock_fracture_and_excavation_using_tapered_needle.jpg"