Inside the hard drive of many computers, a small arm moves across the face of the hard disk. Tune in to this podcast from HowStuffWorks.com to discover how the movement of this arm produces sound -- and why the arm must move to load files.
Welcome to the daily audio workout for your head. Every day we have two games for you, each with three rounds which get progressively harder. To enjoy the full experience avoid distractions whilst you listen.
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