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<p>
 The organisms seen here were found studying a sample of pond water. The sample was collected around 5:30 pm on 4/8/19 from the pond outside Baxter on Caltech’s campus. It was obtained via falcon tube.
</p>
<p>
 Questions: How diverse is this sample? What kinds of bacteria can we find? From the images, there appears to be organisms of different sizes and shapes. We could use a higher-magnification microscope to look at them in more depth, and to identify them. Are these types of bacteria typical to all ponds? To get a better picture of all the bacteria in this particular pond, we could first study more samples. Then, we should compare this to other pond samples taken from a random set of ponds.
</p>
<figure class="wp-block-image">
 <img alt="IMG_20190408_171907[1]" class="wp-image-141302 gcloudimg" data-attachment-id="141302" data-comments-opened="1" data-image-meta='{"aperture":"2","credit":"","camera":"REVVL 2","caption":"","created_timestamp":"1554743948","copyright":"","focal_length":"3.5","iso":"977","shutter_speed":"0.049999","title":"","orientation":"1"}' data-image-title="IMG_20190408_171907[1]" src="https://storage.googleapis.com/microcosmosdelta.appspot.com/images/transfer_141289/IMG_20190408_1719071-1.jpg"/>
</figure>
<figure class="wp-block-image">
 <img alt="IMG_20190408_171629[1]" class="wp-image-141297 gcloudimg" data-attachment-id="141297" data-comments-opened="1" data-image-meta='{"aperture":"2","credit":"","camera":"REVVL 2","caption":"","created_timestamp":"1554743790","copyright":"","focal_length":"3.5","iso":"1805","shutter_speed":"0.059997","title":"","orientation":"1"}' data-image-title="IMG_20190408_171629[1]" src="https://storage.googleapis.com/microcosmosdelta.appspot.com/images/transfer_141289/IMG_20190408_1716291.jpg"/>
</figure>
<p>
 #caltechbi1
</p>


A Sample from Caltech Pond

<p>
 The image shows a magnified view of a flower’s pollen. The sample was collected near the Turtle Pond on Caltech’s campus at 9:15 of the morning of May 1. It was obtained by brushing some pollen off of an anther onto a tissue paper, and later transferred to a slide for study with a foldscope. The pollen comes from a daylily (scientific name Hemerocallis). Daylilies are known for their attractive and colorful flowers; this particular one was yellow. They are perennial plants, and native to Asia.
</p>
<figure class="wp-block-image">
 <img alt="IMG_20190501_093351" class="wp-image-146340 gcloudimg" data-attachment-id="146340" data-comments-opened="1" data-image-meta='{"aperture":"2","credit":"","camera":"REVVL 2","caption":"","created_timestamp":"1556703231","copyright":"","focal_length":"3.5","iso":"112","shutter_speed":"0.006835","title":"","orientation":"1"}' data-image-title="IMG_20190501_093351" src="https://storage.googleapis.com/microcosmosdelta.appspot.com/images/transfer_146311/IMG_20190501_093351-1.jpg"/>
</figure>
<figure class="wp-block-image">
 <img alt="IMG_20190501_093521" class="wp-image-146313 gcloudimg" data-attachment-id="146313" data-comments-opened="1" data-image-meta='{"aperture":"2","credit":"","camera":"REVVL 2","caption":"","created_timestamp":"1556703321","copyright":"","focal_length":"3.5","iso":"191","shutter_speed":"0.008328","title":"","orientation":"1"}' data-image-title="IMG_20190501_093521" src="https://storage.googleapis.com/microcosmosdelta.appspot.com/images/transfer_146311/IMG_20190501_093521.jpg"/>
</figure>
<figure class="wp-block-image">
 <img alt="IMG_20190501_095245" class="wp-image-146314 gcloudimg" data-attachment-id="146314" data-comments-opened="1" data-image-meta='{"aperture":"2","credit":"","camera":"REVVL 2","caption":"","created_timestamp":"1556704365","copyright":"","focal_length":"3.5","iso":"118","shutter_speed":"0.008328","title":"","orientation":"1"}' data-image-title="IMG_20190501_095245" src="https://storage.googleapis.com/microcosmosdelta.appspot.com/images/transfer_146311/IMG_20190501_095245.jpg"/>
 <figcaption>
  Location of sample collection
 </figcaption>
</figure>
<figure class="wp-block-image">
 <img alt="IMG_20190501_095308" class="wp-image-146315 gcloudimg" data-attachment-id="146315" data-comments-opened="1" data-image-meta='{"aperture":"2","credit":"","camera":"REVVL 2","caption":"","created_timestamp":"1556704388","copyright":"","focal_length":"3.5","iso":"113","shutter_speed":"0.004201","title":"","orientation":"1"}' data-image-title="IMG_20190501_095308" src="https://storage.googleapis.com/microcosmosdelta.appspot.com/images/transfer_146311/IMG_20190501_095308.jpg"/>
 <figcaption>
  The daylily flower
 </figcaption>
</figure>
<h4>
 #caltechbi1
</h4>
<p>
</p>


Pollen Sample from a Daylily

<p>
 The image shows a pollen sample from a Port Saint John’s Creeper flower, also known as Pink Trumpet Vine. The sample was taken from a fallen flower, near the Millikan Library on Caltech’s campus, at 9:15 AM May 1st. The pollen grains are about 0.005 cm.
</p>
<p>
 The vine grows best in full sun to partial shade, it needs moderate watering, and can grow to cover 20 ft.
</p>
<div class="wp-block-image">
 <figure class="aligncenter is-resized">
  <img alt="IMG_20190501_095519" class="wp-image-146324 gcloudimg" data-attachment-id="146324" data-comments-opened="1" data-image-meta='{"aperture":"2","credit":"","camera":"REVVL 2","caption":"","created_timestamp":"1556704519","copyright":"","focal_length":"3.5","iso":"110","shutter_speed":"0.0072","title":"","orientation":"1"}' data-image-title="IMG_20190501_095519" height="417" src="https://storage.googleapis.com/microcosmosdelta.appspot.com/images/transfer_146320/IMG_20190501_095519.jpg" width="313"/>
 </figure>
</div>
<div class="wp-block-image">
 <figure class="aligncenter is-resized">
  <img alt="IMG_20190501_095457" class="wp-image-146325 gcloudimg" data-attachment-id="146325" data-comments-opened="1" data-image-meta='{"aperture":"2","credit":"","camera":"REVVL 2","caption":"","created_timestamp":"1556704497","copyright":"","focal_length":"3.5","iso":"116","shutter_speed":"0.003672","title":"","orientation":"1"}' data-image-title="IMG_20190501_095457" height="281" src="https://storage.googleapis.com/microcosmosdelta.appspot.com/images/transfer_146320/IMG_20190501_095457.jpg" width="375"/>
 </figure>
</div>
<h4>
 #caltechbi1
</h4>


S vN

Earth

Posts

A Sample from Caltech Pond

Pollen Sample from a Daylily

Pollen Sample from a Port Saint John’s Creeper

Locations

Statistics

Type of Sample

Foldscope Lens Magnification