Zane Taylor

Sample obtained from the top tier of the Caltech Turtle Pond (Pasadena, CA) at 6:20 pm on 10 April 2019 via pipet from the slurry.

<figure class="wp-block-video aligncenter">
 <video alt="Recitation-2-Pond-Water-Small.mp4" autoplay="" class="gcloudimg" controls="" loop="" muted="" src="https://storage.googleapis.com/microcosmosdelta.appspot.com/images/transfer_141933/Recitation-2-Pond-Water-Small.mp4">
 </video>
 <figcaption>
 Pond Water – Small, dark organism moving through the bottom left corner.
 </figcaption>
</figure>
<figure class="wp-block-video aligncenter">
 <video alt="Recitation-2-Pond-Water-Large.mp4" autoplay="" class="gcloudimg" controls="" loop="" muted="" src="https://storage.googleapis.com/microcosmosdelta.appspot.com/images/transfer_141933/Recitation-2-Pond-Water-Large.mp4">
 </video>
 <figcaption>
 Pond Water – Two semi-translucent organisms in the upper right corner.
 </figcaption>
</figure>

 In these videos, three separate organisms of approximately the same form are seen to be in motion. In the first case, this single organism is moving quite rapidly and is difficult to observe, while in the second case, two slightly larger organisms of similar appearance move more slowly and fluidly around the obstacles of their environment.


 With a foldscope magnification of 140x with the video itself at 4x magnification, these images total to 560x magnification. Judging by the approximately 1 cm length of these motile organisms in the image, we can conclude they are approximately 18-36 micrometers in length.


 Due to the size of these organisms, they are probably eukaryotic but single cellular, suggesting they are protozoa. Further these protozoa may be among the amoebozoa or ciliophora; uncertain due to the poor resolution of the images.


 #caltechbi1

Turtle Pond Protozoa

Sample obtained from a rose in a flower bed at Caltech’s Moore Walk (Pasadena, CA) at 2:30 PM on 5 May 2019.

<figure class="wp-block-image">
 <img alt="Recitation 5 &amp;#8211; Rose &amp;#8211; Zoomed Out" class="wp-image-146890 gcloudimg" data-attachment-id="146890" data-comments-opened="1" data-image-meta='{"aperture":"1.9","credit":"","camera":"SAMSUNG-SM-J727A","caption":"","created_timestamp":"1557066713","copyright":"","focal_length":"2.9","iso":"40","shutter_speed":"0.0012853470437018","title":"","orientation":"6"}' data-image-title="Recitation 5 – Rose – Zoomed Out" src="https://storage.googleapis.com/microcosmosdelta.appspot.com/images/transfer_146888/Recitation-5-Rose-Zoomed-Out.jpg"/>
 <figcaption>
 Rose on Caltech’s Moore Walk
 </figcaption>
</figure>
<figure class="wp-block-image is-resized">
 <img alt="Recitation 5 &amp;#8211; Rose Pollen" class="wp-image-146889 gcloudimg" data-attachment-id="146889" data-comments-opened="1" data-image-meta='{"aperture":"1.9","credit":"","camera":"SM-J727A","caption":"","created_timestamp":"1557066481","copyright":"","focal_length":"2.9","iso":"40","shutter_speed":"0.0083333333333333","title":"","orientation":"6"}' data-image-title="Recitation 5 – Rose Pollen" height="780" src="https://storage.googleapis.com/microcosmosdelta.appspot.com/images/transfer_146888/Recitation-5-Rose-Pollen.jpg" width="585"/>
 <figcaption>
 Rose Pollen at 560x Magnification
 </figcaption>
</figure>

 This rose (Rosa rubiginosa) pollen was rubbed directly onto the slide from the stamen of flower to collect the sample for viewing.


 With a foldscope magnification of 140x with the image itself at 4x magnification, these images total to 560x magnification. Judging by the approximately 1 cm length of the grains in the image, we can conclude they are approximately 18-36 micrometers in length.


 #caltechbi1

Zane Taylor

Earth

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Turtle Pond Protozoa

Rose Pollen

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Type of Sample

Foldscope Lens Magnification