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In Science Tour: Xingfeng was showing the students in St. Helens High School how to assemble a capacitor that could light up a 2.5 V LED.  

The capacitor was charged only for 30 seconds. (May 2017)

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Xingfeng was helping high school teachers in the OSU SMILE program in assembling supercapacitors (August 2016)

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Dr. Ji was helping high school teachers in the OSU SMILE program in assembling supercapacitors (August 2016)

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Dr. Ji with high school students in Clackamas High after giving a lecture on "Energy Storage for the 21st Century". (May 2015)