PIRSA Logo


PERIMETER INSTITUTE RECORDED SEMINAR ARCHIVE

Displaying all lectures given by: Julian Barbour


10050060.jpg
The case for geometry
Speaker(s): Julian Barbour
Abstract:
Date: 22/05/2010 - 10:40 am

08100040.jpg
Was Spacetime a Glorious Historical Accident?
Speaker(s): Julian Barbour
Abstract: Exactly half a century after Minkowski’s justly famous lecture, Dirac’s efforts to quantize gravity led him “to doubt how fundamental the four-dimensional requirement in physics is”. Dirac does not appear to have explored this doubt further, but I shall argue that it needs to be considered s... read more
Date: 01/10/2008 - 2:00 pm
Series: Colloquium

08090064.jpg
The Theory of Duration and Clocks
Speaker(s): Julian Barbour
Abstract: In 1898, Poincaré identified two fundamental issues in the theory of time: 1)What is the basis for saying that a second today is the same as a second tomorrow? 2) How can one define simultaneity at spatially separated points? Poincaré outlined the solution to the first problem { which amounts to a... read more
Date: 28/09/2008 - 10:00 am

08100033.jpg
Some issues in quantum gravity
Speaker(s): Julian Barbour
Abstract: TBA
Date: 25/09/2008 - 2:00 pm
Valid XHTML 1.0!