Speaker: Dr. Henry Wilton (DPMMS)
Venue: Winstanley Lecture Theatre
Time: 16/02/2015 20:30, drinks from 20:15
The Banach-Tarski Paradox is the counter-intuitive fact that a sphere can be cut into finitely many pieces and reassembled into two copies of itself. Of course, you can’t do this in real life, but it’s more than just a curiosity. In fact, it’s the start of a beautiful mathematical story at the heart of modern group theory, geometry, logic and analysis. I’ll try to tell some of that story.