Loading

  • 21 Aug, 2019

  • By, Wikipedia

File:Test Rig For Naval Mines, 21 March 1834, St Petersburg.jpg
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 100 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.
 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

media type

image/jpeg

exposure time

0.0008 second

focal length

40 millimetre

File history

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

Date/TimeThumbnailDimensionsUserComment
current20:01, 31 October 2020Thumbnail for version as of 20:01, 31 October 20202,100 × 1,795 (1.08 MB)Retired electrician{{Information |Description={{en|Test rig for naval mines designed by Pavel Schilling and Karl Schilder. As held in St Petersburg on March 21, 1833. Legend: A - wooden target hut filled with ice blocks B, placed on 1 archin thick ice D, with layers of logs and ice C in between. Bottom E is 13 feet below ice D. F and G are test charges of 80 and 120 pounds, fired with electric fuzes H. }} |Source=Yarotsky, A.V. (1963). Павел Львович Шиллинг 1786-1837 [Pavel Lvovich Schilling] (2nd ed.). Izd. AN...
The following pages on the English Wikipedia use this file (pages on other projects are not listed):

Global file usage

The following other wikis use this file:

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.wikipedia.org/key/File:Test_rig_for_naval_mines,_21_March_1834,_St_Petersburg.jpg"