Alex Hao

I took a drop of water from the fountain in front of the Green Library and observed it under the foldscope with dark filed. The dark filed image was by adding another lens between the light and the sample. Surprisingly I found this golden creature which may be a unicellular organism due to its size.

<figure class="wp-block-image">
 <img alt="IMG_0045_3" class="wp-image-148962 gcloudimg" data-attachment-id="148962" data-comments-opened="1" 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="IMG_0045_3" src="https://storage.googleapis.com/microcosmosdelta.appspot.com/images/transfer_148897/IMG_0045_3.jpg"/>
 <figcaption>
 The mysterious creature captured under the foldscope. The image was take by an iPad.
 </figcaption>
</figure>

 The scale bar was estimated via an image of the 5 μm nylon filter (in the foldscape toolkit) as shown below. I averaged over 10 holes to get the length.

<figure class="wp-block-image">
 <img alt="IMG_0084_3" class="wp-image-148963 gcloudimg" data-attachment-id="148963" data-comments-opened="1" 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="IMG_0084_3" src="https://storage.googleapis.com/microcosmosdelta.appspot.com/images/transfer_148897/IMG_0084_3.jpg"/>
 <figcaption>
 The image of the 5 μm nylon filter.
 </figcaption>
</figure>

Mysterious Creature from Stanford Fountain

Inspired by Alexandar Fleming, I studied a mildewed carrot found in my refrigerator. The orange balls are carrot cells. And the black fibers are the mildew. And the black spots seem to be the cell body of the mildew. The black fibers seem to wind on the carrot tissue and decompose the tissue. A further study is to explore how the mildew decompose the carrot. It is highly probably that the mildew generate hydrolyses to decompose. This hydrolysis may be useful to decompose the organic rubbish. The scale bar was by imaging a 5 μm nylon filter and taking the average over several holes.

<figure class="wp-block-image">
 <img alt="IMG_0089_3" class="wp-image-148973 gcloudimg" data-attachment-id="148973" data-comments-opened="1" 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="IMG_0089_3" src="https://storage.googleapis.com/microcosmosdelta.appspot.com/images/transfer_148968/IMG_0089_3.jpg"/>
 <figcaption>
 The image of a crewed carrot under the foldscope.
 </figcaption>
</figure>

Alex Hao

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Mysterious Creature from Stanford Fountain

Mildewed Carrot

Spider Leg

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Foldscope Lens Magnification