Today, September 11th 2009, at almost 6 in the afternoon, the Space Shuttle Discovery had to land up at Edwards Air Force Base. Earlier in the day I'd heard a casual mention on the radio that we'd be hearing the dual sonic booms in the LA area at around 5:45... but I had no idea just how loud they would be!
Before heading out to pick up my son at kindergarten I put my two mini recorders on the ledge of my office balcony, just hoping that they might pick up something.