THE BRIDGE AT BROOMBRIDGE

LUAS GREEN LINE SERVICE

Custom Search

THE BRIDGE AND THE FORMULA

Even though there is a railway station and a tram terminus the area is remote and rather bleak and has suffered from anti-social activity for many years. Therefore, I would not recommend it as a tourist destination.

Broom Bridge also called Broome Bridge, and sometimes Brougham Bridge, is a bridge along Broombridge Road which crosses the Royal Canal in Cabra, Dublin. The 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 16 October 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.
  •  BROOM BRIDGE 001

    BROOM BRIDGE 001

  •  BROOM BRIDGE 002

    BROOM BRIDGE 002

  •  BROOM BRIDGE 003

    BROOM BRIDGE 003

  •  BROOM BRIDGE 004

    BROOM BRIDGE 004

  •  BROOM BRIDGE 005

    BROOM BRIDGE 005

  •  BROOM BRIDGE 006

    BROOM BRIDGE 006

  •  BROOM BRIDGE 007

    BROOM BRIDGE 007

  •  BROOM BRIDGE 008

    BROOM BRIDGE 008

  •  BROOM BRIDGE 009

    BROOM BRIDGE 009

  •  BROOM BRIDGE 010

    BROOM BRIDGE 010

  •  BROOM BRIDGE 011

    BROOM BRIDGE 011

  •  BROOM BRIDGE 012

    BROOM BRIDGE 012

  •  BROOM BRIDGE 013

    BROOM BRIDGE 013

  •  BROOM BRIDGE 014

    BROOM BRIDGE 014

  •  BROOM BRIDGE 015

    BROOM BRIDGE 015