Here is a challenge: have a scientist with a great idea to summarize it in a ten minute lecture. Harvard has done it in the series Harvard Thinks Big. The crash lectures mounted all one after the other in a one night event and they recorded this on video for us to enjoy in video podcast.
It is too bad the quality of the sound and visuals were botched. If this was an attempt by Harvard to do something similar to TED Talks it miserably failed as far as the presentation is concerned. For the content, there is more to say. Go watch and enjoy. (feed)
I learned from this series from Open Culture one of the blogs I follow for being informed about great academic free content on-line