Classnotes for October 24

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1 Sep 12 About, Tue, Thu, Std2Disc
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7 Oct 24 Mon, Tue, Thu
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26 Apr 10 Tue, Thu
Study Apr 17 Office Hours
Exams Apr 24 Final, PM

Classnotes for October 24

We will hold a makeup class, for the class lost when Dror was sick, on Monday October 24th, 6PM to 8PM, in our regular classroom.

Makeup half-cancelled! I've just noticed Kadanoff's public lecture (http://www.fields.utoronto.ca/programs/scientific/05-06/holodynamics/CMI/) today at 6PM at the Koffler Institute, Room KP 108. This seems like a better use for everybody's time than a makeup class. So please come and enjoy (I hope), and after that is over and if we still have time, we may hold the second hour of the makeup. Kadanoff's title and abstract read:

Making a Splash; Breaking a Neck: The Development of Complexity in Physical Systems

Abstract. The fundamental laws of physics are very simple. They can be written on the top half of an ordinary piece of paper. The world about us is very complex. Whole libraries hardly serve to describe it. Beyond this, any living organism exhibits a degree of complexity quite beyond the capacity of our libraries. This complexity has led some thinkers to suggest that living things are not the outcome of physical law but instead the creation of a (super)-intelligent design.

In this talk, we examine the development of complexity using examples drawn from studies of the flow of simple materials. Examples include splashing water, the formation of a thin neck as one mass of fluid separates into two, swirls in gases heated over a flame, and jets thrown up from beds of sand. We watch complexity develop in front of our eyes. Mostly, we are able to understand and explain what we are seeing. We do our work by following a succession of very specific situations. In following these specific problems, we soon get to broader issues: predictability and chaos, mechanisms for the generation of complexity and of simple laws, and finally the question of whether there is a natural tendency toward the formation of complex 'machines'.

Added later - makeup half-cancelled turned out to be makeup cancelled.