Xiaoqi Long

Caltech Turtle Pond Wet Sample

<figure class="wp-block-image">
 <img alt="屏幕快照 2019-05-10 下午12.35.20" class="wp-image-149122 gcloudimg" data-attachment-id="149122" 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="屏幕快照 2019-05-10 下午12.35.20" data-recalc-dims="1" src="https://storage.googleapis.com/microcosmosdelta.appspot.com/images/transfer_149120/%E5%B1%8F%E5%B9%95%E5%BF%AB%E7%85%A7-2019-05-10-%E4%B8%8B%E5%8D%8812.35.20.png"/>
</figure>
<figure class="wp-block-image">
 <img alt="屏幕快照 2019-05-10 下午12.35.04" class="wp-image-149121 gcloudimg" data-attachment-id="149121" 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="屏幕快照 2019-05-10 下午12.35.04" data-recalc-dims="1" src="https://storage.googleapis.com/microcosmosdelta.appspot.com/images/transfer_149120/%E5%B1%8F%E5%B9%95%E5%BF%AB%E7%85%A7-2019-05-10-%E4%B8%8B%E5%8D%8812.35.04.png"/>
</figure>

 This is the image of the pollen sample seen with the foldscope. The picture is taken by the camera of an iPhone 7. As we can see in the image, there are tiny grains of pollen, some impurities on the glass, and a petal in the background. The image is not ideal.


 The pollen sample was obtained from a blooming wild daisy on the lawn beneath Millikan Library at noon May 10. The stamen of the daisy was fetched an arranged on the glass slide. A few petals went onto the slide as well since it is hard to break them apart without letting all the pollen fall off.

<figure class="wp-block-image">
 <img alt="9d6e551d-8fe6-41d1-b0de-2e28027bd791" class="gcloudimg" src="https://storage.googleapis.com/microcosmosdelta.appspot.com/images/transfer_149120/9d6e551d-8fe6-41d1-b0de-2e28027bd791"/>
</figure>

 The sample was obtained on the lawn in this picture.


 The magnification of the foldscope lens is 140x. From our picture, the diameter of the pollen is roughly 2mm. This means the diameter of the pollen is 0.014mm.


 The species of this plant is the wild daisy.


 #caltechbi1

Wild Daisy Pollen Sample

<figure class="wp-block-image">
 <img alt="1631558246130_.pic" class="wp-image-150580 gcloudimg" data-attachment-id="150580" 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="1631558246130_.pic" data-recalc-dims="1" src="https://storage.googleapis.com/microcosmosdelta.appspot.com/images/transfer_150579/1631558246130_.pic_.jpg"/>
 <figcaption>
 Sample 1: Tip of a dead leaf
 </figcaption>
</figure>

 1: This is a picture of the magnified image seen from the foldscope of a dead leaf. The leaf appears brownish. The sample was obtained from a fallen leaf from a tree outside of
 
 Dabney courtyard
 
 at
 
 13:10, May 16
 
 . We picked up the leaf from the grass and cut off a fragment to use as the sample. The species of the tree is oak.

<figure class="wp-block-image">
 <img alt="301558044347_.pic_hd" class="wp-image-150582 gcloudimg" data-attachment-id="150582" data-comments-opened="1" data-image-meta='{"aperture":"1.8","credit":"","camera":"CLT-AL00","caption":"smacap_Bright","created_timestamp":"1558017222","copyright":"","focal_length":"3.95","iso":"200","shutter_speed":"0.001111","title":"smacap_Bright","orientation":"0"}' data-image-title="301558044347_.pic_hd" src="https://storage.googleapis.com/microcosmosdelta.appspot.com/images/transfer_150579/301558044347_.pic_hd.jpg"/>
 <figcaption>
 Location where we picked up the dead leaf
 </figcaption>
</figure>


<figure class="wp-block-image">
 <img alt="1641558246131_.pic_hd" class="wp-image-150581 gcloudimg" data-attachment-id="150581" data-comments-opened="1" data-image-meta='{"aperture":"1.8","credit":"","camera":"CLT-AL00","caption":"oznor","created_timestamp":"1558013311","copyright":"","focal_length":"3.95","iso":"500","shutter_speed":"0.05","title":"oznor","orientation":"0"}' data-image-title="1641558246131_.pic_hd" src="https://storage.googleapis.com/microcosmosdelta.appspot.com/images/transfer_150579/1641558246131_.pic_hd.jpg"/>
 <figcaption>
 Sample 2: Stem of a flower
 </figcaption>
</figure>

 2: This is a picture of the magnified image seen from the foldscope of a white flower. In the picture, the green stem of the flower can be observed. The sample was obtained from the
 
 lawn between Parson and Dabney
 
 at
 
 13:11, May 16
 
 . We picked up the flower from the grass and cut off a fragment to use as the sample. The species of the flower is Geranium wilfordii Maxim.

<figure class="wp-block-image">
 <img alt="371558044385_.pic_hd" class="wp-image-150584 gcloudimg" data-attachment-id="150584" data-comments-opened="1" data-image-meta='{"aperture":"1.8","credit":"","camera":"CLT-AL00","caption":"smacap_Bright","created_timestamp":"1558012297","copyright":"","focal_length":"3.95","iso":"50","shutter_speed":"0.002571","title":"smacap_Bright","orientation":"0"}' data-image-title="371558044385_.pic_hd" src="https://storage.googleapis.com/microcosmosdelta.appspot.com/images/transfer_150579/371558044385_.pic_hd.jpg"/>
 <figcaption>
 Location where we obtained the sample
 </figcaption>
</figure>


<figure class="wp-block-image">
 <img alt="1661558246134_.pic" class="wp-image-150585 gcloudimg" data-attachment-id="150585" 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="1661558246134_.pic" data-recalc-dims="1" src="https://storage.googleapis.com/microcosmosdelta.appspot.com/images/transfer_150579/1661558246134_.pic_.jpg"/>
 <figcaption>
 Sample 3: Stamens of a fallen purple flower
 </figcaption>
</figure>

 3: This is a picture of the magnified image seen from the foldscope of stamens of a purple flower. Semi-clear tubes and their tips can be observed. The sample was obtained from the
 
 lawn beside Millikan pond
 
 at
 
 13:50, May 16
 
 . We picked up the flower from the grass and cut off its stamens to use as the sample. The species of the flower is Jacaranda mimosifolia.

<figure class="wp-block-image">
 <img alt="401558044451_.pic_hd" class="wp-image-150586 gcloudimg" data-attachment-id="150586" data-comments-opened="1" data-image-meta='{"aperture":"1.8","credit":"","camera":"CLT-AL00","caption":"dav","created_timestamp":"1558014432","copyright":"","focal_length":"3.95","iso":"50","shutter_speed":"0.000772","title":"dav","orientation":"0"}' data-image-title="401558044451_.pic_hd" src="https://storage.googleapis.com/microcosmosdelta.appspot.com/images/transfer_150579/401558044451_.pic_hd.jpg"/>
 <figcaption>
 Location where we picked up the purple flower
 </figcaption>
</figure>
<figure class="wp-block-image">
 <img alt="1681558246137_.pic" class="wp-image-150587 gcloudimg" data-attachment-id="150587" 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="1681558246137_.pic" data-recalc-dims="1" src="https://storage.googleapis.com/microcosmosdelta.appspot.com/images/transfer_150579/1681558246137_.pic_.jpg"/>
 <figcaption>
 Sample 4: Seeds from a lavender
 </figcaption>
</figure>

 4: This is a picture of the magnified image seen from the foldscope of a seed of a lavender flower. Hair growing out of the seed can be observed. The sample was obtained from the
 
 lawn beside Millikan pond
 
 at
 
 13:52, May 16
 
 . We ripped a seed from the lavender plant to use as the sample. The species is Lavendula angustifolia.

<figure class="wp-block-image">
 <img alt="481558044497_.pic_hd" class="wp-image-150588 gcloudimg" data-attachment-id="150588" data-comments-opened="1" data-image-meta='{"aperture":"1.8","credit":"","camera":"CLT-AL00","caption":"smacap_Bright","created_timestamp":"1558014414","copyright":"","focal_length":"3.95","iso":"400","shutter_speed":"0.001111","title":"smacap_Bright","orientation":"0"}' data-image-title="481558044497_.pic_hd" src="https://storage.googleapis.com/microcosmosdelta.appspot.com/images/transfer_150579/481558044497_.pic_hd.jpg"/>
 <figcaption>
 Location where we obtained the lavender seed
 </figcaption>
</figure>


<figure class="wp-block-image">
 <img alt="1691558246137_.pic" class="wp-image-150589 gcloudimg" data-attachment-id="150589" 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="1691558246137_.pic" data-recalc-dims="1" src="https://storage.googleapis.com/microcosmosdelta.appspot.com/images/transfer_150579/1691558246137_.pic_.jpg"/>
 <figcaption>
 Sample 5: Legs of a dead ant
 </figcaption>
</figure>
<figure class="wp-block-image">
 <img alt="1701558246139_.pic" class="wp-image-150590 gcloudimg" data-attachment-id="150590" 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="1701558246139_.pic" data-recalc-dims="1" src="https://storage.googleapis.com/microcosmosdelta.appspot.com/images/transfer_150579/1701558246139_.pic_.jpg"/>
 <figcaption>
 Sample 5: head of the same ant
 </figcaption>
</figure>

 5: This is a picture of the magnified image seen from the foldscope of a dead ant. The legs and the head can be observed. The sample was obtained from the
 
 rose garden beside Millikan pond
 
 at
 
 13:54, May 16
 
 . We killed the ant (by accident) and used it as a sample. The species is Pogonomyrmex badius.

<figure class="wp-block-image">
 <img alt="1711558246140_.pic" class="wp-image-150591 gcloudimg" data-attachment-id="150591" 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="1711558246140_.pic" data-recalc-dims="1" src="https://storage.googleapis.com/microcosmosdelta.appspot.com/images/transfer_150579/1711558246140_.pic_.jpg"/>
 <figcaption>
 Sample 6: Abdomen of a live ant
 </figcaption>
</figure>

 6: This is a picture of the magnified image seen from the foldscope of a live ant. We are seeing the abdomen of the ant. The sample was obtained from the
 
 rose garden beside Millikan pond
 
 at
 
 13:55, May 16
 
 . We caught the ant alive and used it as a sample. The species is Pogonomyrmex badius.

<figure class="wp-block-image">
 <img alt="641558044788_.pic_hd" class="wp-image-150592 gcloudimg" data-attachment-id="150592" data-comments-opened="1" data-image-meta='{"aperture":"1.8","credit":"","camera":"CLT-AL00","caption":"sdr_HDRB","created_timestamp":"1558017146","copyright":"","focal_length":"3.95","iso":"50","shutter_speed":"0.002587","title":"sdr_HDRB","orientation":"0"}' data-image-title="641558044788_.pic_hd" src="https://storage.googleapis.com/microcosmosdelta.appspot.com/images/transfer_150579/641558044788_.pic_hd.jpg"/>
 <figcaption>
 Location where we caught the ants
 </figcaption>
</figure>

 When working on this assignment, I (Xiaoqi Catherine Long) collaborated with Happy Wenjun Chang and Erika Shuyue Yu. We collected the samples together but used separate foldscopes to take the pictures.


 #caltechbi1

Foldscope Observations: Plants and Insects

<ol>
 <li>
 What: Tip of a leaf of weeds in the grass. When: May 29th 15:40. Where: Outside Moore Laboratory. How: Ripped the leaf off the plant, took a tip as a sample, and placed it on the glass slide.
 </li>
 <li>
 </li>
</ol>
<figure class="wp-block-image">
 <img alt="891559320046_.pic" class="wp-image-153688 gcloudimg" data-attachment-id="153688" 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":"1"}' data-image-title="891559320046_.pic" src="https://storage.googleapis.com/microcosmosdelta.appspot.com/images/transfer_153687/891559320046_.pic_.jpg"/>
 <figcaption>
 Sample 1: Tip of a leaf
 </figcaption>
</figure>
<figure class="wp-block-image">
 <img alt="屏幕快照 2019-05-31 上午9.32.00" class="wp-image-153689 gcloudimg" data-attachment-id="153689" 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="屏幕快照 2019-05-31 上午9.32.00" src="https://storage.googleapis.com/microcosmosdelta.appspot.com/images/transfer_153687/%E5%B1%8F%E5%B9%95%E5%BF%AB%E7%85%A7-2019-05-31-%E4%B8%8A%E5%8D%889.32.00.png"/>
 <figcaption>
 Location of the weeds we obtained (Picture by Wenjun Chang)
 </figcaption>
</figure>

 2. What: The resin of a piece stem from a flowery plant. When: May 29th 15:35. Where: Beckman Lawn. How: Cut open the stem of the plant and squeezed the resin onto a glass slide

<figure class="wp-block-image">
 <img alt="881559320044_.pic" class="wp-image-153690 gcloudimg" data-attachment-id="153690" 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":"1"}' data-image-title="881559320044_.pic" src="https://storage.googleapis.com/microcosmosdelta.appspot.com/images/transfer_153687/881559320044_.pic_.jpg"/>
 <figcaption>
 Sample 2: Resin from a plant stem
 </figcaption>
</figure>
<figure class="wp-block-image">
 <img alt="28181559269498_.pic_hd" class="wp-image-153691 gcloudimg" data-attachment-id="153691" data-comments-opened="1" data-image-meta='{"aperture":"1.8","credit":"","camera":"CLT-AL00","caption":"smacap_Bright","created_timestamp":"1559143934","copyright":"","focal_length":"3.95","iso":"50","shutter_speed":"0.001893","title":"smacap_Bright","orientation":"0"}' data-image-title="28181559269498_.pic_hd" src="https://storage.googleapis.com/microcosmosdelta.appspot.com/images/transfer_153687/28181559269498_.pic_hd.jpg"/>
 <figcaption>
 Location where we got the sample (Photo by Wenjun Chang)
 </figcaption>
</figure>

 3. What: Dead human skin. When: May 29th 15:50. Where: Somebody’s finger. How: Ripped off a piece of skin from the finger.

<figure class="wp-block-image">
 <img alt="901559320053_.pic" class="wp-image-153692 gcloudimg" data-attachment-id="153692" 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":"1"}' data-image-title="901559320053_.pic" src="https://storage.googleapis.com/microcosmosdelta.appspot.com/images/transfer_153687/901559320053_.pic_.jpg"/>
 <figcaption>
 Sample 3: Dead skin
 </figcaption>
</figure>

 4. What: Hair on a purple plant. When: May 29th 15:30. Where: Outside Annenberg. How: Ripped off the tip of the plant and collected the hair onto the slide.

<figure class="wp-block-image">
 <img alt="871559320043_.pic" class="wp-image-153693 gcloudimg" data-attachment-id="153693" 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":"1"}' data-image-title="871559320043_.pic" src="https://storage.googleapis.com/microcosmosdelta.appspot.com/images/transfer_153687/871559320043_.pic_.jpg"/>
 <figcaption>
 Sample 4: Hair on a purple plant
 </figcaption>
</figure>
<figure class="wp-block-image">
 <img alt="28201559269501_.pic_hd" class="wp-image-153694 gcloudimg" data-attachment-id="153694" data-comments-opened="1" data-image-meta='{"aperture":"1.8","credit":"","camera":"CLT-AL00","caption":"smacap_Bright","created_timestamp":"1559143660","copyright":"","focal_length":"3.95","iso":"100","shutter_speed":"0.008333","title":"smacap_Bright","orientation":"0"}' data-image-title="28201559269501_.pic_hd" src="https://storage.googleapis.com/microcosmosdelta.appspot.com/images/transfer_153687/28201559269501_.pic_hd.jpg"/>
 <figcaption>
 Location where we obtained the purple plant (photo by Wenjun Chang)
 </figcaption>
</figure>

 5. What: Pollen of a red plant. When: May 29th 15:32. Where: Outside Annenberg. How: Rubbed the anther of the flower against the slide.

<figure class="wp-block-image">
 <img alt="861559320007_.pic" class="wp-image-153695 gcloudimg" data-attachment-id="153695" 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":"1"}' data-image-title="861559320007_.pic" src="https://storage.googleapis.com/microcosmosdelta.appspot.com/images/transfer_153687/861559320007_.pic_.jpg"/>
 <figcaption>
 Sample 5: Pollen of a red plant
 </figcaption>
</figure>
<figure class="wp-block-image">
 <img alt="28191559269499_.pic_hd" class="wp-image-153696 gcloudimg" data-attachment-id="153696" data-comments-opened="1" data-image-meta='{"aperture":"1.8","credit":"","camera":"CLT-AL00","caption":"smacap_Bright","created_timestamp":"1559143710","copyright":"","focal_length":"3.95","iso":"64","shutter_speed":"0.008333","title":"smacap_Bright","orientation":"0"}' data-image-title="28191559269499_.pic_hd" src="https://storage.googleapis.com/microcosmosdelta.appspot.com/images/transfer_153687/28191559269499_.pic_hd.jpg"/>
 <figcaption>
 Location where we obtained the red plant (photo by Wenjun Chang)
 </figcaption>
</figure>

 Collaborated with Wenjun Chang, Shuyue Yu, and Yuanzhe Xie to prepare sample slides.


 #caltechbi1

Xiaoqi Long

Earth

Posts

Caltech Turtle Pond Wet Sample

Wild Daisy Pollen Sample

Foldscope Observations: Plants and Insects

Foldscope Extra Credit (Attempt #2)

Locations

Statistics

Type of Sample

Foldscope Lens Magnification