Podcast:Ask the Naked Scientists Published On: Fri Aug 21 2009 Description: How do glowsticks glow? Do mobile phones have limited frequencies? How do 3D films work? We tackle these questions on this weeks show, as well as discuss the causes of heart attacks, why it's less windy at night and find out why our accents aren't always reflected when we sing. Like this podcast? Please help us by supporting the Naked Scientists