File:Broom bridge plaque.jpg

From Wikimedia Commons, the free media repository
Jump to navigation Jump to search

Original file ‎(1,536 × 1,024 pixels, file size: 203 KB, MIME type: image/jpeg)

Captions

Captions

Add a one-line explanation of what this file represents

Summary[edit]

Description
English: Somewhat vandalized plaque on Brougham Bridge in Central Dublin, commemorating Hamilton's invention of w:quaternions.

The plaque says:

Here as he walked by
on the 16th of October 1843
Sir William Rowan Hamilton
in a flash of genius discovered
the fundamental formula for
quaternion multiplication
i2 = j2 = k2 = i j k = −1

& cut it on a stone of this bridge
Date
Source Transferred from en.wikipedia to Commons by Premeditated Chaos using CommonsHelper.
Author Wisher at English Wikipedia
Other versions
Camera location53° 22′ 22.79″ N, 6° 18′ 00.05″ W Kartographer map based on OpenStreetMap.View this and other nearby images on: OpenStreetMapinfo

Licensing[edit]

Public domain This work has been released into the public domain by its author, Wisher at English Wikipedia. This applies worldwide.
In some countries this may not be legally possible; if so:
Wisher grants anyone the right to use this work for any purpose, without any conditions, unless such conditions are required by law.

Original upload log[edit]

The original description page was here. All following user names refer to en.wikipedia.
  • 2006-03-05 21:14 Wisher 1536×1024× (207614 bytes) Author - wisher Photo of the plaque on Brougham Bridge in Central Dublin. Photo taken mid May, 2005.

File history

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

Date/TimeThumbnailDimensionsUserComment
current13:22, 12 March 2012Thumbnail for version as of 13:22, 12 March 20121,536 × 1,024 (203 KB)File Upload Bot (Magnus Manske) (talk | contribs) {{BotMoveToCommons|en.wikipedia|year={{subst:CURRENTYEAR}}|month={{subst:CURRENTMONTHNAME}}|day={{subst:CURRENTDAY}}}} {{Information |Description={{en|Author - wisher Photo of the plaque on Brougham Bridge in Central Dublin. Photo taken mid May, 2005....

You cannot overwrite this file.

Metadata

This file contains additional information such as Exif metadata which may have been added by the digital camera, scanner, or software program used to create or digitize it. If the file has been modified from its original state, some details such as the timestamp may not fully reflect those of the original file. The timestamp is only as accurate as the clock in the camera, and it may be completely wrong.

Retrieved from "https://commons.wikimedia.org/w/index.php?title=File:Broom_bridge_plaque.jpg&oldid=835215161"