<ul class="wp-block-gallery columns-2 is-cropped" data-carousel-extra='{"blog_id":1,"permalink":"https:\/\/microcosmos.foldscope.com\/?p=151945"}'>
 <li class="blocks-gallery-item">
  <figure>
   <img alt="tennis1" class="wp-image-151946 gcloudimg" data-attachment-id="151946" data-comments-opened="1" data-id="151946" data-image-meta='{"aperture":"0","credit":"","camera":"","caption":"","created_timestamp":"0","copyright":"","focal_length":"0","iso":"0","shutter_speed":"0","title":"","orientation":"0"}' data-image-title="tennis1" data-link="https://microcosmos.foldscope.com/?attachment_id=151946" src="https://storage.googleapis.com/microcosmosdelta.appspot.com/images/transfer_151945/tennis1.jpg"/>
   <figcaption>
    This was the tennis ball the sample was obtained from.
   </figcaption>
  </figure>
 </li>
 <li class="blocks-gallery-item">
  <figure>
   <img alt="tennis2" class="wp-image-151947 gcloudimg" data-attachment-id="151947" data-comments-opened="1" data-id="151947" data-image-meta='{"aperture":"0","credit":"","camera":"","caption":"","created_timestamp":"0","copyright":"","focal_length":"0","iso":"0","shutter_speed":"0","title":"","orientation":"0"}' data-image-title="tennis2" data-link="https://microcosmos.foldscope.com/?attachment_id=151947" src="https://storage.googleapis.com/microcosmosdelta.appspot.com/images/transfer_151945/tennis2.jpg"/>
   <figcaption>
    The felt under the foldscope showed thin lines and a neon yellow color.
   </figcaption>
  </figure>
 </li>
</ul>
<p>
 The sample was obtained on May 28, 10:30 pm, from a Penn tennis ball. The felt was picked from the tennis ball and used as the sample. The image under the foldscope showed the strands of the felt, and also showed the neon color of the felt. #caltechbi1
</p>


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