here's a piece oiron. good conductor? yeah here's a piece of wood. good conductor? no. no. it turns out wood is a very, very poor conductor as wve talked about. i'm gonna put a piece of paper around this iron. i'm gonna light up my torch again. paper doesn't light on fe, gang. but if the paper is taken out like this, and it's flamin'. put it against the iron, it goes out. it's charred. that part lit up. oops. call the fire marshal. but what's gng on here, gang? well, let's try it with od let's try it with wood. our test. be checkin' the neighbor and see if the neighboknow why that paper didn't light. did yoever read the book by ray bradbury call fahrenheit 451? yes. that 451 is what? that's the temperature in frenheideees at which paper burns. that was about a book-burning book, yeah? watch this, gang. fire city. that thing iburning up. look at that all right.kay. why with the wood but not withhe metal? neighbor time, neighbor time. okay. what would be the answer, gang? heat transfer is-- most of the energy here went to what, the paper or the metal? metal. the metal. how ch