Honorable Mention (2009)
Image courtesy of Kelly M. Brinsko. All rights reserved.
Cross Section of Black Cotton Fibers
Kelly M. Brinsko, McCrone Research Institute
Compound polarized light microscopy
Black cotton embroidery thread was cross-sectioned to a 3 µm thickness using a Schwartz fiber microtome. Brinsko viewed the image between crossed polars with a first-order red compensator inserted.