Electricity from SPARKs creates light

Sudha Kheterpal, a percussionist from the United Kingdom-based band Faithless, has designed a device that she has dubbed the SPARK. This device, which doubles as a musical instrument, uses energy to power a rechargeable battery that can then be used to power electronics like lights and cellphones through a built-in USB port. After being played for only 12 minutes, it can power an electronic device for up to an hour.

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