From Treehugger comes a report about a yo-yo powered MP3 player. "The inventors estimate that between 10-12 tosses per hour are sufficient for continuous music play. A wireless headset allows the user to listen to music while yo-yoing." Cool.
From Treehugger comes a report about a yo-yo powered MP3 player. "The inventors estimate that between 10-12 tosses per hour are sufficient for continuous music play. A wireless headset allows the user to listen to music while yo-yoing." Cool.