How can I speed up the tempo of some MP3 files and burn them onto a CD for faster playback? [more inside]
posted by querty on Aug 29, 2009 - 5 answers

Pilots and medical personnel: Exactly why are cell phones and wireless devices prohibited at takeoff/landings and in ICUs (etc.). Are there known consequences on certain equipment? And why, precisely, are microwaves bad for pacemaker wearers? I'm interested in knowing exactly what mechanisms are/could be affected, how and why. [more inside]
posted by spock on Aug 13, 2008 - 15 answers