Rene Descartes

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Mathematician Robert Langlands. Langlands program is a set of deep conjectures that attempt to forge links between algebraic and analytical objects.

There are numerous branches of mathematics, from the familiar arithmetic, geometry and algebra at an elementary level to more advanced branches such a(...)

What white people can do next: Hazel Chu and Emma Dabiri. Photographs: Dara Mac Dónaill and Joanne O’Brien

Emma Dabiri, the author, historian, and TV presenter, and Hazel Chu, the Green Party politician and Lord Mayor of Dublin, both share an experience o(...)

A greater understanding of consciousness carries the potential for bringing wide benefits, but also carries dangers. Photograph: iStock

In the first of a two-part series Seán Duke examines the science and philosophy of consciousness – starting with “the insiders”; those who believe ans(...)

Slavoj Žižek: He’s been called the Elvis of cultural theory and the Borat of philosophy. Photograph: Ulrich Baumgarten/Getty Images

I’m 20 minutes into an interview with Slavoj Žižek when he propositions sex. As a thought experiment, I stress. “Imagine a love encounter. (...)

Prof Emily Thomas: ‘There’s a long history of arguing that armchair travel is better than real-world travel.’

This week normally sees legions of holiday-makers rushing to the ports and airports for an Easter getaway. But that’s all changed. Countless short bre(...)

TCD professor emeritus David Berman: ‘I was about six or seven when I had what is sometimes described as an “I am me” experience.’ Photograph: Dave Meehan

A few weeks ago, this column explored that ancient puzzle “How do you know you actually exist?”, one of the defining questions of philosophy. In doin(...)

If the self is located in the body, Richard Swinburne asks, where exactly can we find it? Photograph: iStock

A timeless question that still awaits a conclusive answer is whether you, in fact, exist. Sure, you think you exist. But where exactly are “you” locat(...)

A French stamp honouring Évariste Galois.

On the morning of May 30th, 1832, a young man stood 25 paces from his friend. Both men fired, but only one pistol was loaded. Évariste Galois, a 20-ye(...)

A spiral has appeared over the past decade or so on the beach between Booterstown station and the Merrion Gates, southeast of Dublin. A sandbank (pictured) has gradually built up, driven by the action of the sea waves, and has assumed a form close to a logarithmic spiral.

We all know what a spiral looks like. Or do we? Ask your friends to describe one and they will probably trace out the form of a spiral staircase. But (...)

Flight plan: the geodesic arcs – one northerly, one southerly – show the shortest routes between Singapore and Quito. They are shorter than the line of the equator between the two points as Earth is not a perfect sphere

Geodesy is the study of Earth’s shape and size, and of variations in its gravitational field. Earth was originally believed to be flat, but many clues(...)

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