Putting the fizz in physics. ‘Many of us look forward to a cold beer at the end of a hot summer day, but physicist John Page brings beer to work. For him, the bubbly beverage is a perfect medium for demonstrating a scientific technique pioneered by his group at the University of Manitoba.
Page is a leading expert on the use of multiply scattered acoustic waves to study changes in physical systems and the movement of particles through a medium, in this case bubbles in a glass of beer. He directs the university’s ultrasonics research laboratory, one of only a handful in North America focused on this technique.
Page recently co-wrote a summary of major work in the field that appeared as a feature article in the May 2007 edition of Physics Today.
“I know that a lot of effort has gone into figuring out how to get just the right concentration and size of bubbles, and how to produce the perfect head on a glass of beer,” he said. “There are people who work in that industry who know much, much more about that than I do. Could diffusing acoustic wave spectroscopy be useful to them? Maybe. But for me, beer is just a good example of the kind of thing you can do using this technique”.’ [via ZDNet Blogs: Emerging Technology Trends]