HEAT Presentation Help !! Hi, I have to give a 10 minute presentation on HEAT soon. The topic is quite broad as its more of a research project. The idea being that I pick any aspect or characteristic relitive to HEAT and go quite in depth with the research. I really dont know where to start to be honest, I am looking for any sugestions or comments on what you would concentrate on? Or any possible subjects you recomend? I was considering looking into how "Friction" produces HEAT but cant see it filling 10 minutes!! If you can recomend any sites with good information I would greatly appreciate it. Many Thanks.