Kendall Matsumoto

<p>
 The images below show a microscopic visual comparison of eyebrow hair and hair from the head. I collected these samples from my own eyebrow and head (so these strands of hair are from the same individual), and mounted them using a wet mount slide technique. These two types of hair clearly have notable color differences, but it is also interesting to note the very different degrees of transparency between the two hair types: the eyebrow hair seems much more opaque–with no discernible difference between the outer layer and and the interior of the hair strand, whereas the head hair strand has a more transparent center. Such differences bring up interesting questions about if this is universally true for all humans, why this is the case, and if these differences indicate divergent evolutionary purposes for these types of hair. Bio60_2019
</p>
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   <img alt="eyebrow 2" class="wp-image-125916 gcloudimg" data-attachment-id="125916" data-comments-opened="1" data-id="125916" data-image-meta='{"aperture":"1.8","credit":"","camera":"iPhone X","caption":"","created_timestamp":"1549887044","copyright":"","focal_length":"4","iso":"20","shutter_speed":"0.0015432098765432","title":"","orientation":"1"}' data-image-title="eyebrow 2" data-link="https://microcosmos.foldscope.com/?attachment_id=125916" data-recalc-dims="1" src="https://storage.googleapis.com/microcosmosdelta.appspot.com/images/transfer_125901/eyebrow-2-1.jpeg"/>
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    Eyebrow Hair 1
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   <img alt="eyebrow 1" class="wp-image-125914 gcloudimg" data-attachment-id="125914" data-comments-opened="1" data-id="125914" data-image-meta='{"aperture":"1.8","credit":"","camera":"iPhone X","caption":"","created_timestamp":"1549887061","copyright":"","focal_length":"4","iso":"20","shutter_speed":"0.0019762845849802","title":"","orientation":"1"}' data-image-title="eyebrow 1" data-link="https://microcosmos.foldscope.com/?attachment_id=125914" data-recalc-dims="1" src="https://storage.googleapis.com/microcosmosdelta.appspot.com/images/transfer_125901/eyebrow-1-1.jpeg"/>
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    Eyebrow Hair 2
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   <img alt="head hair 1" class="wp-image-125911 gcloudimg" data-attachment-id="125911" data-comments-opened="1" data-id="125911" data-image-meta='{"aperture":"1.8","credit":"","camera":"iPhone X","caption":"","created_timestamp":"1549887429","copyright":"","focal_length":"4","iso":"20","shutter_speed":"0.00076219512195122","title":"","orientation":"1"}' data-image-title="head hair 1" data-link="https://microcosmos.foldscope.com/?attachment_id=125911" data-recalc-dims="1" src="https://storage.googleapis.com/microcosmosdelta.appspot.com/images/transfer_125901/head-hair-1.jpeg"/>
   <figcaption>
    Head Hair 1
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   <img alt="head hair 2" class="wp-image-125913 gcloudimg" data-attachment-id="125913" data-comments-opened="1" data-id="125913" data-image-meta='{"aperture":"1.8","credit":"","camera":"iPhone X","caption":"","created_timestamp":"1549887496","copyright":"","focal_length":"4","iso":"20","shutter_speed":"0.00074074074074074","title":"","orientation":"1"}' data-image-title="head hair 2" data-link="https://microcosmos.foldscope.com/?attachment_id=125913" data-recalc-dims="1" src="https://storage.googleapis.com/microcosmosdelta.appspot.com/images/transfer_125901/head-hair-2.jpeg"/>
   <figcaption>
    Head Hair 2
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Eyebrow Hair v. Head Hair Bio60_2019

<p>
 The images below show cells from a layer of white onion: the membranous peel on the inside of the onion bulb. The sample was peeled from an interior layer of a fresh white onion (not the outer skin)–with care to make sure they were as thin and transparent as possible–then dried overnight. The dried peels were then prepared with wet mount slide preparation and examined with the foldscope. The cells and cell walls are clearly visible, but it is worth noting that that they are entirely transparent. Bio60_2019
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   <img alt="IMG_2929" class="wp-image-129452 gcloudimg" data-attachment-id="129452" data-comments-opened="1" data-id="129452" data-image-meta='{"aperture":"1.8","credit":"","camera":"iPhone X","caption":"","created_timestamp":"1550748193","copyright":"","focal_length":"4","iso":"20","shutter_speed":"0.00086505190311419","title":"","orientation":"0"}' data-image-title="IMG_2929" data-link="https://microcosmos.foldscope.com/?attachment_id=129452" src="https://storage.googleapis.com/microcosmosdelta.appspot.com/images/transfer_129438/IMG_2929.jpg"/>
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   <img alt="IMG_2928" class="wp-image-129453 gcloudimg" data-attachment-id="129453" data-comments-opened="1" data-id="129453" data-image-meta='{"aperture":"1.8","credit":"","camera":"iPhone X","caption":"","created_timestamp":"1550748147","copyright":"","focal_length":"4","iso":"20","shutter_speed":"0.00059701492537313","title":"","orientation":"0"}' data-image-title="IMG_2928" data-link="https://microcosmos.foldscope.com/?attachment_id=129453" src="https://storage.googleapis.com/microcosmosdelta.appspot.com/images/transfer_129438/IMG_2928.jpg"/>
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Kendall Matsumoto

Earth

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Eyebrow Hair v. Head Hair Bio60_2019

White Onion Cells

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Type of Sample

Foldscope Lens Magnification