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File:Zeffy Ruvalcaba judges lemon-powered iPod charger (13787598905).jpg

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Description Zeffy Ruvalcaba, a civil engineer with the U.S. Army Corps of Engineers Sacramento District, offers constructive feedback on a lemon-powered iPod charger during Folsom High School's seventh-annual Engineering Challenge April 11, 2014, in Folsom, Calif. Student projects included: hovercrafts, catapults, Tesla coils, electromagnetic propulsion devices, pneumatic wind turbines, voice synthesizers, hydrogen fuel cells, solar electric boats and cars, gene transformation, and orthopedic implants. (U.S. Army photo by Todd Plain/Released)
Date Taken on 11 April 2014, 09:53
Source Zeffy Ruvalcaba judges lemon-powered iPod charger
Author U.S. Army Corps of Engineers Sacramento District
Camera location38° 38′ 54.18″ N, 121° 09′ 26.36″ W Kartographer map based on OpenStreetMap.View this and other nearby images on: OpenStreetMapinfo

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Public domain
This image or file is a work of a U.S. Army Corps of Engineers soldier or employee, taken or made as part of that person's official duties. As a work of the U.S. federal government, the image is in the public domain.

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This image was originally posted to Flickr by USACE-Sacramento District at https://flickr.com/photos/52057813@N07/13787598905. It was reviewed on 12 October 2016 by FlickreviewR and was confirmed to be licensed under the terms of the United States Government Work.

12 October 2016

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current04:49, 12 October 2016Thumbnail for version as of 04:49, 12 October 20164,928 × 3,264 (8.69 MB)Vanished Account Byeznhpyxeuztibuo (talk | contribs)Transferred from Flickr via Flickr2Commons

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