Power Laces
Back to the Future II Power Laces Are Real...
...but they require a big motor on the back of your shoe. Don't fret, fans of all things future. This is but step one in replacing the more economical, mechanically perfect shoelace technology known as Velcro. [Instructables via HackaDay]
這發想不錯 !! 再加上太陽能軟板材料:利用走路跑步的動能與太陽能來存儲電力
http://www.youtube.com/watch?v=ROEZs0HpFQc&feature=player_embedded
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