Timothy Yao

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   Video of a sample of water with microorganisms from the Caltech turtle pond. The sample was provided to us by the TAs who obtained it from the turtle pond, most likely the day of our recitation 4/10.  In order to better determine the characteristics of the moving microorganism that was observed, greater magnification and higher resolution is probably needed. #caltechbi1
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Water from Caltech Turtle Pond

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  <img alt="Pollen Assignment &amp;#8211; Pollen" class="wp-image-149186 gcloudimg" data-attachment-id="149186" 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="Pollen Assignment – Pollen" src="https://storage.googleapis.com/microcosmosdelta.appspot.com/images/transfer_149182/Pollen-Assignment-Pollen.jpg"/>
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   In the image, several individual pollen grains (yellow elongated ovals) can be observed. The sample was obtained from a flower near the east entrance of the Caltech Broad Center for the Biological Sciences at approximately 2:00 pm on May 10th, 2019. The sample was obtained by carefully rubbing one of the flower’s anthers across a glass sample slide, before covering the pollen with a glass cover slip and taping the slip down with scotch tape. #caltechbi1
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  <img alt="Pollen Assignment &amp;#8211; Flower" class="wp-image-149194 gcloudimg" data-attachment-id="149194" 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="Pollen Assignment – Flower" src="https://storage.googleapis.com/microcosmosdelta.appspot.com/images/transfer_149182/Pollen-Assignment-Flower.jpg"/>
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   The sample was obtained here from this flower. This plant species that the pollen was obtained from is
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    Hemerocallis fulva
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   , otherwise known as the orange day-lily. #caltechbi1
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Several Individual Pollen Grains of the species Hemerocallis fulva, obtained and observed at the Caltech Broad Center for the Biological Sciences

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  <img alt="1 pic" class="wp-image-153053 gcloudimg" data-attachment-id="153053" 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="1 pic" src="https://storage.googleapis.com/microcosmosdelta.appspot.com/images/transfer_153042/1-pic.jpg"/>
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   The picture is of a hairy extension found on the stigma of a purple flower. The hair is translucent, and perhaps is coated with a viscous liquid that traps objects like pollen (probably the faint yellow object close to the center) in order to feed the pollen into the pistil. #caltechbi1
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  <img alt="1 location" class="wp-image-153081 gcloudimg" data-attachment-id="153081" 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="1 location" src="https://storage.googleapis.com/microcosmosdelta.appspot.com/images/transfer_153042/1-location.jpg"/>
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   The sample was taken at approximately 3:30 pm on May 30, 2019 on the south side of the Caltech Annenberg Center for Information Science and Technology. The sample was obtained by removing a flower form the tree before carefully extracting several hairs from the stigma, placing these on a clean sample slide. #caltechbi1
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Hairs Extracted from the Pistils of Common Purple Flowers on the Caltech Campus

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  <img alt="2 pic" class="wp-image-153106 gcloudimg" data-attachment-id="153106" 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="2 pic" src="https://storage.googleapis.com/microcosmosdelta.appspot.com/images/transfer_153105/2-pic.jpg"/>
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   The image is a picture of a furry hairlike object found covering the end of a long stem. The purple hairs in turn have tiny extensions (the sharp pointy wedges coming off the central line). #caltechbi1
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  <img alt="2 location" class="wp-image-153123 gcloudimg" data-attachment-id="153123" 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="2 location" src="https://storage.googleapis.com/microcosmosdelta.appspot.com/images/transfer_153105/2-location.jpg"/>
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   The sample was taken at approximate 3:30 pm on May 30, 2019 from this plant on the south side of the Caltech Annenberg Center for Information Science and Technology. The sample was obtained by carefully extracting a single hair from one of the stems of this plant; special care was taken in removing the hair from the base, i.e. as close to the stem as possible. The sample was then placed on a sample slide to be viewed by the foldscope. #caltechbi1
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Purple Hairy Follicles on the Stem of a Bush found on the North Side of the Caltech Campus

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  <img alt="3 pic" class="wp-image-153171 gcloudimg" data-attachment-id="153171" 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="3 pic" src="https://storage.googleapis.com/microcosmosdelta.appspot.com/images/transfer_153168/3-pic.jpg"/>
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   A mass of tiny pollen grains (the individual yellow specks) is observed in this image. For the most part, the pollen grains are round and originally are clumped together; they are separated due to placing the cover slip over the sample on the sample slide. #caltechbi1
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  <img alt="3 location" class="wp-image-153172 gcloudimg" data-attachment-id="153172" 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="3 location" src="https://storage.googleapis.com/microcosmosdelta.appspot.com/images/transfer_153168/3-location.jpg"/>
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   The sample was taken at approximately 3:30 pm on May 30, 2019 near the southwest entrance of the Caltech Annenberg Center for Information Science and Technology. A single flower bud was carefully removed and opened. The sample was then obtained by carefully rubbing an anther against a glass slide until pollen rubbed off. #caltechbi1
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Mass of Pollen Extracted from closed Pink Flowers on the North Side of the Caltech Campus

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  <img alt="4 pic" class="wp-image-153260 gcloudimg" data-attachment-id="153260" 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="4 pic" src="https://storage.googleapis.com/microcosmosdelta.appspot.com/images/transfer_153259/4-pic.jpg"/>
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   A pointy leaf from a hedge-plant that is commonly seen around the Caltech houses is the subject of this image. The grainy texture of the leaf can be seen as the thin parallel lines crossing the image. Furthermore, water droplets are observed as the sample is fresh and is pressed between a sample slide and cover slip. #caltechbi1
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  <img alt="4 leaves" class="wp-image-153261 gcloudimg" data-attachment-id="153261" 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="4 leaves" src="https://storage.googleapis.com/microcosmosdelta.appspot.com/images/transfer_153259/4-leaves.jpg"/>
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   The sample was taken at approximately 5:30 pm on May 30, 2019 in the Caltech Ruddock House Courtyard. The sample was obtained by removing a leaf from the plant, and carefully removing a thin slice from the leaf with the help of a knife. This thin slice was then transferred to a clean sample slide. #caltechbi1
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Surface Texture of a Leaf from a Common Plant found around the Caltech Undergraduate Houses

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   This image depicts the surface structure and texture of the white flower’s filament. The lines traversing the filament indicate the more rigid and patterned structure familiar in most plant structures. Water droplets can also be seen as the sample was fresh, and pressing the sample between the slide and cover slip extracted the water from the sample. #caltechbi1
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  <img alt="6 pic" class="wp-image-153272 gcloudimg" data-attachment-id="153272" 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="6 pic" src="https://storage.googleapis.com/microcosmosdelta.appspot.com/images/transfer_153268/6-pic.jpg"/>
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   This image depicts the surface texture of the white flower’s petal. As can be carefully observed, the petal has a microscopically rugged texture though its appearance to the naked eye is rather smooth. The structure seems to be rather different than the structure of the filament. #caltechbi1
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  <img alt="5 location" class="wp-image-153274 gcloudimg" data-attachment-id="153274" 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="5 location" src="https://storage.googleapis.com/microcosmosdelta.appspot.com/images/transfer_153268/5-location.jpg"/>
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   These samples were taken at approximately 6:00 pm on May 30, 2019 near Chandler Cafe on the walk to Page House in the Caltech Campus. A single flower was carefully removed. The filament was first carefully pressed and flattened before placing onto the sample slide under the cover slip. After cleaning the sample slide with acetone, the petal was then placed and viewed under a clean cover slip. #caltechbi1
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Filament and Petal of a White Flower Common to the Caltech Campus

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  <img alt="7 pic" class="wp-image-153299 gcloudimg" data-attachment-id="153299" 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="7 pic" src="https://storage.googleapis.com/microcosmosdelta.appspot.com/images/transfer_153297/7-pic.jpg"/>
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   This image depicts the edge of the pink flower’s petal. The pinkish area is the main region of the petal. It is close to opaque, and so quickly fades to black. The edge also has a white covering as can be seen on top of the pink area. #caltechbi1
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  <img alt="3 location" class="wp-image-153300 gcloudimg" data-attachment-id="153300" 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="3 location" src="https://storage.googleapis.com/microcosmosdelta.appspot.com/images/transfer_153297/3-location-1.jpg"/>
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   The sample was taken from these pink flowers at approximately 3:30 pm on May 30, 2019 near the southwest entrance of the Caltech Annenberg Center for Information Science and Technology. A flower bud was carefully removed, and a section of the petal was cut and placed onto a clean sample slide. #caltechbi1
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Timothy Yao

Earth

Posts

Mass of Pollen Extracted from closed Pink Flowers on the North Side of the Caltech Campus

Surface Texture of a Leaf from a Common Plant found around the Caltech Undergraduate Houses

Filament and Petal of a White Flower Common to the Caltech Campus

Petal from a Pink Flower Found on the North Side of the Caltech Campus

Water from Caltech Turtle Pond

Several Individual Pollen Grains of the species Hemerocallis fulva, obtained and observed at the Caltech Broad Center for the Biological Sciences

Hairs Extracted from the Pistils of Common Purple Flowers on the Caltech Campus

Purple Hairy Follicles on the Stem of a Bush found on the North Side of the Caltech Campus

Mass of Pollen Extracted from closed Pink Flowers on the North Side of the Caltech Campus

Surface Texture of a Leaf from a Common Plant found around the Caltech Undergraduate Houses

Filament and Petal of a White Flower Common to the Caltech Campus

Petal from a Pink Flower Found on the North Side of the Caltech Campus

Water from Caltech Turtle Pond

Several Individual Pollen Grains of the species Hemerocallis fulva, obtained and observed at the Caltech Broad Center for the Biological Sciences

Hairs Extracted from the Pistils of Common Purple Flowers on the Caltech Campus

Purple Hairy Follicles on the Stem of a Bush found on the North Side of the Caltech Campus

Mass of Pollen Extracted from closed Pink Flowers on the North Side of the Caltech Campus

Surface Texture of a Leaf from a Common Plant found around the Caltech Undergraduate Houses

Filament and Petal of a White Flower Common to the Caltech Campus

Petal from a Pink Flower Found on the North Side of the Caltech Campus

Locations

Statistics

Type of Sample

Foldscope Lens Magnification