STEM/STEAM 2022
Figure 3: Diatoms come in many shapes and sizes. SEM images. Figure 1: Microscopic Explorations from the Lawrence Hall of Science.
Te Private Eye (
http://www.the-private-eye.com/
index.html). We have frisbees, matchsticks, cocoa beans, Toblerone bars, marshmallows, pillows, cushions, guitars, bananas, peanuts, canoes, etc. Once the students are hooked, they want to know more. Even the ones who think they are artists and not scien- tists get hooked with the patterns they see in the diatoms. My favorite is the “Toblerones,” Trigonium sp. (Figure 4). I’m sure I’ve seen a wallpaper with this pattern. We continually bring in
the sciences, such as how diatoms keep us alive (20–50% of the world’s oxygen), and how the broken pieces of diatoms make the very useful diatomaceous earth (we are up to six uses, from fil- tering beer to dynamite). Copepods and amphipods have their squidgy stuff on the inside and the hard stuff on the outside. We have our squidgy stuff on the outside and our hard stuff on the inside. When you zoom into a copepod, you see the pattern
Figure 2: Microscopy is fun. Community outreach at the University of Vermont Medical Center. Courtesy of Janet Schwarz.
2022 July •
www.microscopy-today.com
Figure 4: Trigonium sp. (“Toblerone bar”). SEM images. 39
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