William Rowan Hamilton
Irish mathematician and astronomer (1805-1865) · Academics · Died at 60
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Something wrong?He carved quaternions into a Dublin bridge in a flash of insight and gave physics a language it still speaks: Hamilton's reformulation of mechanics underpins quantum theory, relativity, and every field that models energy and motion.
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An Account of the Eruption of Mount Vesuvius, in 1767- In a Letter to the Earl of Morton, President of the Royal Society, from the Honourable William Hamilton, His Majesty's Envoy Extraordinary at (14744451476).jpg?width=1200)
An Account of the Eruption of Mount Vesuvius, in 1767- In a Letter to the Earl of Morton, President of the Royal Society, from the Honourable William Hamilton, His Majesty's Envoy Extraordinary at (14764273191)
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Ihoosh-Broom bridge plaque_regarding_the_discovery_of_Quaternions_multiplication_by_Sir_William_Rowan_Hamilton.jpg?width=1200)
Inscription on Broom Bridge (Dublin) regarding the discovery of Quaternions multiplication by Sir William Rowan HamiltonIn their own words 4
, … an undercurrent of thought was going on in my mind which gave at last a result, whereof it is not too much to say that I felt at once the importance.
To admire is, to me, questionless, the highest pleasure of life.
Time is said to have only one dimension, and space to have three dimensions. ...
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Born in Dublin in 1805, Hamilton was appointed Andrews Professor of Astronomy at Trinity College and director of Dunsink Observatory in 1827, a post he held until his death. His early work reshaped geometrical optics and classical mechanics, rewriting Lagrangian equations in a form that became foundational to modern theoretical physics. He later turned to algebra, pioneering quaternions and helping establish modern linear algebra through Fourier analysis and abstract structures. Knighted in 1835, he won the Cunningham Medal twice and the Royal Medal the same year. He died in 1865, leaving Ireland its most influential physicist alongside Ernest Walton, his name now fixed to institutes, monuments, streets, and stamps across the country.
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