For one week from the time of this posting you can hear an interview with Brian Eno in which he discusses the Long Now Foundation (as discussed here a few days ago), and his exploration of bell sounds as ‘demonstrations’ for the 10,000 year clock project. (Don’t be put off if the radio stream starts with an arts review programme: the Eno interview starts about 27 minutes in and runs for 30 minutes.)
Eno again manages to make the ideas provocative and moving. With luck the interview should be archived after 17 October on the BBC Radio 3 Mixing It page — try clicking on the pull-down menu near the bottom of the page (at the time of writing).