File:R. E. Rosensweig with ferrofluid in his lab (1965).jpg

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English: R. E. Rosensweig initially produced ferrofluid for a magnetocaloric energy conversion system.Photo taken in 1965.
Date
Source Own work
Author North1Star

Photo taken at Avco Corporation, Wilmington, MA.

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10 May 2017

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Date/TimeDimensionsUserComment
current02:23, 22 December 2018800 × 1,144 (75 KB)Opencoopercrop and downscale to get rid of artifacts

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