BETWEEN CROSS GUNS BRIDGE AND BROOM BRIDGE

BETWEEN CROSS GUNS BRIDGE AND BROOM BRIDGE

Custom Search

ROYAL CANAL - CABRA AND PHIBSBORO SECTIONS

Cross Guns Bridge (officially Westmoreland Bridge) and the nearby 5th and 6th Locks are surrounded by industrial ruins, some converted into apartments. You can also spot the O'Connell Monument in Glasnevin Cemetery. And you might notice a railway line disappearing in a tunnel underneath the Royal Canal - this marks the start of the almost unknown [until recently] railway tunnel running underneath the Phoenix Park.

Broom Bridge also called Broome Bridge, and sometimes Brougham Bridge, is a bridge along Broombridge Road which crosses the Royal Canal in Cabra, Dublin, Ireland. Broome Bridge is named after William Broome, one of the directors of the Royal Canal company who lived nearby. It is famous for being the location where Sir William Rowan Hamilton first wrote down the fundamental formula for quaternions on October 16, 1843, which is to this day commemorated by a stone plaque on the northwest corner of the underside of the bridge. After being spoiled by the action of vandals and some visitors, the plaque was moved to a different place, higher, under the railing of the bridge.

The text on 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.

Given the historical importance of the bridge with respect to mathematics, mathematicians from all over the world have been known to take part in the annual commemorative walk from Dunsink Observatory to the site. Attendees have included Nobel Prize winners Murray Gell-Mann, Steven Weinberg and Frank Wilczek, and mathematicians Sir Andrew Wiles, Sir Roger Penrose and Ingrid Daubechies. The 16 October is sometimes referred to as Broomsday (in reference to Broome Bridge) and as a nod to the literary commemorations on 16 June (Bloomsday in honour of James Joyce).
  •  ROYAL CANAL - CABRA AREA 001

    ROYAL CANAL - CABRA AREA 001

  •  ROYAL CANAL - CABRA AREA 002

    ROYAL CANAL - CABRA AREA 002

  •  ROYAL CANAL - CABRA AREA 003

    ROYAL CANAL - CABRA AREA 003

  •  ROYAL CANAL - CABRA AREA 004

    ROYAL CANAL - CABRA AREA 004

  •  ROYAL CANAL - CABRA AREA 005

    ROYAL CANAL - CABRA AREA 005

  •  ROYAL CANAL - CABRA AREA 006

    ROYAL CANAL - CABRA AREA 006

  •  ROYAL CANAL - CABRA AREA 007

    ROYAL CANAL - CABRA AREA 007

  •  ROYAL CANAL - CABRA AREA 008

    ROYAL CANAL - CABRA AREA 008

  •  ROYAL CANAL - CABRA AREA 009

    ROYAL CANAL - CABRA AREA 009

  •  ROYAL CANAL - CABRA AREA 010

    ROYAL CANAL - CABRA AREA 010

  •  ROYAL CANAL - CABRA AREA 011

    ROYAL CANAL - CABRA AREA 011

  •  ROYAL CANAL - CABRA AREA 012

    ROYAL CANAL - CABRA AREA 012

  •  ROYAL CANAL - CABRA AREA 013

    ROYAL CANAL - CABRA AREA 013

  •  ROYAL CANAL - CABRA AREA 014

    ROYAL CANAL - CABRA AREA 014

  •  ROYAL CANAL - CABRA AREA 015

    ROYAL CANAL - CABRA AREA 015

  •  ROYAL CANAL - CABRA AREA 016

    ROYAL CANAL - CABRA AREA 016

  •  ROYAL CANAL - CABRA AREA 017

    ROYAL CANAL - CABRA AREA 017

  •  ROYAL CANAL - CABRA AREA 018

    ROYAL CANAL - CABRA AREA 018

  •  ROYAL CANAL - CABRA AREA 019

    ROYAL CANAL - CABRA AREA 019

  •  ROYAL CANAL - CABRA AREA 020

    ROYAL CANAL - CABRA AREA 020

  •  ROYAL CANAL - CABRA AREA 021

    ROYAL CANAL - CABRA AREA 021

  •  ROYAL CANAL - CABRA AREA 022

    ROYAL CANAL - CABRA AREA 022

  •  ROYAL CANAL - CABRA AREA 022

    ROYAL CANAL - CABRA AREA 022

  •  ROYAL CANAL - CABRA AREA 024

    ROYAL CANAL - CABRA AREA 024

  •  ROYAL CANAL - CABRA AREA 025

    ROYAL CANAL - CABRA AREA 025

  •  ROYAL CANAL - CABRA AREA 026

    ROYAL CANAL - CABRA AREA 026

  •  ROYAL CANAL - CABRA AREA 027

    ROYAL CANAL - CABRA AREA 027

  •  ROYAL CANAL - CABRA AREA 028

    ROYAL CANAL - CABRA AREA 028

  •  ROYAL CANAL - CABRA AREA 029

    ROYAL CANAL - CABRA AREA 029

  •  ROYAL CANAL - CABRA AREA 030

    ROYAL CANAL - CABRA AREA 030

We use cookies to ensure that we give you the best experience on our website. By continuing to visit this site you agree to our use of cookies.