After examining the inside of a grass blade last time, I was curious to explore beyond the plant kingdom and examine what bacteria look like. I conveniently stumbled upon a sample of bacteria from my classmate’s right hand. The bacteria was cultured in a Petri dish and so it had grown into multiple colonies. First, I used a toothpick to collect a good chunk of the bacteria and then placed it under the Foldscope for viewing. It looks like the bacteria have developed a yellowish brown color and that they are congregating/clustering together. Although it is difficult to see the precise geometries of the bacteria, we can slightly tell that the bacteria are rod shaped and approximately rectangular. The bacteria look opaque and difficult to see precisely through, although perhaps the light from the room or external source may have played a role. I am curious to view other types of bacteria (e.g. spiral-shaped, enterococcus, coliform, round-shaped) under the Foldscope and see how they differ.


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 <img alt="IMG_2739" class="alignnone size-medium wp-image-31557 gcloudimg" data-attachment-id="31557" data-comments-opened="1" data-image-meta='{"aperture":"2.2","credit":"","camera":"iPhone 6","caption":"","created_timestamp":"1519300281","copyright":"","focal_length":"4.15","iso":"50","shutter_speed":"0.033333333333333","title":"","orientation":"6"}' data-image-title="IMG_2739" data-recalc-dims="1" height="225" src="https://storage.googleapis.com/microcosmosdelta.appspot.com/images/transfer_31555/IMG_2739.jpg" width="300"/>

Bacteria from a Classmate’s Hand (BIO60_2018)

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