Hervé This, the famed french chemist, author of Molecular Gastronomy, and director of the INRA (Institut National de la Recherche Agronomique) in France, was the keynote speaker on Friday, April 13 at the IACP's 29th Annual Conference in Chicago. Dr. This came on stage to talk about Constructivism and performed a couple of experiments to proove his points. The following is a very short sample of his presentation. You can read a summary of the session here. If you are interested in getting a full transcript of Dr. Hervé This's plenary session, as well as other presentations and workshops of the IACP Chicago Conference, you can do so by accessing this website.