teaching is a science at least as far as charles spencer is concerned the oxford university professor enjoys manipulating the sense of taste simply by changing the color of the cup music playing in the background you can change the taste of food that is something no one kind of believes on how it can possibly be true and there's a job of the guest a physicist to do the experiments to demonstrate this stuff builds an understanding of how the brain works and how the senses connect. according to spence for example the physical shape of a cup alters the taste of the coffee. as you feel something round in my hand that brings out next as you make the cut more angular that tends to accentuate the acidic notes instead and then by changing of the shape of the cup over the surface of the liquid then you can accentuate to enhance the fruit you know it's. seeing hearing tasting smelling and touching the full experience of a meal is made about all of senses and what they come together to create. the self described gastro physicist has played with the concept and is achieved results that 1st glance

spencer's speech being denied on campus, what about trans people or people of color who were threatened directly by his presence and what about their speech against the platform speaker, in the case of charlesrray and read their statements in reply. how is we negotiate these questions? >> if you think of campus supposedly the issues is an important issue, it is telling that we've been convinced this is such an important free-speech issue, there is virtually no discourse about the prison population being a free-speech issue, the fact that tens of millions of americans are locked up and can't talk to people he free-speech issue or migrants disappear and their families can't find them, isn't that a bigger free-speech issue than charles murray talking on campus? that shows how skewed our perspective has become. we want to reclaim free-speech, it would have to be in that material way that is tied to reality. >> three more questions. >> on that last point, maybe the aspect of discourse do have some substance in empirical evidence and that helped get to the point at which we can decide what affect material speech and what is a value and that is what we are talking about, the ways the media mishand