Kiran Hamkins

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 This is an image of a drop of pond water examined through a foldscope. Obtained by sticking Falcon tube into the Caltech turtle pond at 4:50 PM, 4/8/19. The circular particles in the image are bacteria, surrounded by dirt particulates. Some indicators to the fact that these are in the domain bacteria are the fact that they are clear and sticking together. A greater magnification would allow the distinctions between microbacteria and dirt particles to be more clear.


 #caltechbi1

Pond Water Sample

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 <img alt="IMG_20190502_154524769" class="wp-image-146379 gcloudimg" data-attachment-id="146379" data-comments-opened="1" data-image-meta='{"aperture":"1.8","credit":"","camera":"moto g(6)","caption":"","created_timestamp":"1556811925","copyright":"","focal_length":"3.95","iso":"128","shutter_speed":"0.033333333333333","title":"","orientation":"0"}' data-image-title="IMG_20190502_154524769" src="https://storage.googleapis.com/microcosmosdelta.appspot.com/images/transfer_146378/IMG_20190502_154524769.jpg"/>
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 Pollen Sample under foldscope.
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 Location of sample collection
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 This is an image of pollen collected directly from a flower outside of Page House at Caltech on May 2, 2019 at 3:30 PM. The sample was obtained by brushing pollen from the stamen of the flower directly on to the glass slide. The magnification of the foldscope is 140x, meaning that the size of the pollen grain which appears to be about .4 cm wide in the image is about 30 micrometers. Some questions that are brought up by this image are those concerning the shape of the pollen. Why does pollen from different flowers have different shapes, and which shapes are the most optimal? Answers to this could possibly be found by collecting samples from several different plants and researching the types of pollinators used by each plant to see if there is any correlation. Certain shapes may stick better to certain pollinators, or may be more easily carried by the wind, or something of this sort. The plant is a hibiscus rosa-sinensis. #caltechbi1

Kiran Hamkins

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Pond Water Sample

Pollen Sample from Hibiscus Flower

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Type of Sample

Foldscope Lens Magnification