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04 Aug

What has Hamilton to do with philosophy?

William Rowan Hamilton Wikimedia, Public Domain

William Rowan Hamilton
Wikimedia, Public Domain

[T]he visible world supposes an invisible world as its interpreter, and […] in the application of the mathematics themselves there must (if I may venture upon the word) be something meta-mathematical. Though the senses may make known the phenomena, and mathematical methods may arrange them, yet the craving of our nature is not satisfied till we trace in them the projection of ourselves, of that which is divine within us

From a lecture to astronomy students given by William Rowan Hamilton in 1833 (Graves, 1882-9, vol. 2, p. 68).

Hamilton differed from other mathematicians of his time in his focus on abstract mathematical laws, and in finding inspiration in idealist philosophers such as Immanuel Kant and Samuel Taylor Coleridge,  as can be seen from the quote. “Hamilton often argued that certain metaphysical views were the primary motivation for his work in mathematics” (Attis, 2004).
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29 Apr

Root and STEM

Taming the Electric Fluids (c) PhotoAtelier/Flickr (CC BY 2.0)

Taming the Electric Fluids
(c) PhotoAtelier/Flickr (CC BY 2.0)

In the general consciousness, philosophy is more associated with the arts than with science. The nesting of philosophy under “literature” in the Oxford Reference timeline tool is one example. In the case of Irish philosophy it’s understandable given great writers such as Swift, Wilde and Yeats fit into the category of Irish philosopher. But Irish philosophy (as all philosophy) also includes people who are interested in the natural world, mathematics and technology.

AE wrote in 1925 (Irish Statesman): “Ireland has not only the unique Gaelic tradition, but it has also given birth, if it accepts all of its children, to many men who have influenced European culture and science, Berkeley, Swift, Goldsmith, Burke, Sheridan, Moore, Hamilton, Kelvin, Tyndall, Shaw, Yeats, Synge and many others of international repute.” Four of those names unequivocally played a role in the history of STEM. Three of those were also philosophers.
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16 Oct

Quaternion Bridge

The quaternion plaque on Broombridge © Cliff Bilbrey on Flickr (CC BY-NC 2.0)

The quaternion plaque on Broombridge
© Cliff Bilbrey on Flickr (CC BY-NC 2.0)

This plaque commemorates the discovery of the quaternion formula (i2=j2=k2=ijk=-1) by Sir William Rowan Hamilton on 16th October 1843, as he walked along the canal from Dunsink on his way to a meeting in Dublin. Without paper to hand he scratched the formula into one of the bridge’s stones.

There is a commemorative Hamilton Walk organised by the Maynooth University Maths department every year. There is also a virtual version here.

For a Storify of Hamilton Day 2015 and the 25th Hamilton Walk, click here.

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