* For permission to use this image or to obtain a higher quality please contact:
Asymptote Ltd., St Johns Innovation Centre, Cowley Road, Cambridge CB4 0AS, UK
© Do not reproduce without permission.
Additional photos
Click photo to enlarge
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Detail of etched, freeze concentrated glycerol.
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Cross fracture of whole straw - low magnification. Etching to remove ice crystals reveals the structure of the freeze concentrated glycerol.
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