Fred Ramsdell in light blue shirt and dark jacket in laboratory.
Fred Ramsdell / Creative Commons
This photo is shared under Creative Commons BY-SA 4.0:
https://creativecommons.org/licenses/by-sa/4.0/
The photo has been cropped, with the original available here:
https://en.wikipedia.org/wiki/Fred_Ramsdell#/media/File:Fred_Ramsdell,_2015_(cropped).jpg
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