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File:William Rowan Hamilton Plaque - geograph.org.uk - 347941.jpg

William_Rowan_Hamilton_Plaque_-_geograph.org.uk_-_347941.jpg ‎(640 × 480 pixels, file size: 104 KB, MIME type: image/jpeg)

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English: William Rowan Hamilton Plaque Plaque on Broome Bridge on the Royal Canal commemorating William Rowan Hamilton's discovery. The plaque reads:
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 = ijk = −1
& cut it on a stone of this bridge.
Date
Source From geograph.org.uk
Author JP
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JP / William Rowan Hamilton Plaque / 
CC BY-SA 2.0
JP / William Rowan Hamilton Plaque
Object location53° 23′ N, 6° 18′ W  Heading=0° Kartographer map based on OpenStreetMap.View this and other nearby images on: OpenStreetMapinfo

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w:en:Creative Commons
attribution share alike
This file is licensed under the Creative Commons Attribution-Share Alike 2.0 Generic license.
Attribution: JP
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Date/TimeThumbnailDimensionsUserComment
current18:21, 2 January 2011Thumbnail for version as of 18:21, 2 January 2011640 × 480 (104 KB)GeographBot (talk | contribs)== {{int:filedesc}} == {{Information |description={{en|1=William Rowan Hamilton Plaque Plaque on Broome Bridge on the Royal Canal commemorating William Rowan Hamilton's discovery.}} |date=2007-02-25 |source=From [http://www.geograph.org.uk/photo/347941 ge

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