Scanning electron microscopy/SEM
Contents contributed and discussions participated by Sean Nash
Hearing is be-leafing: Students invent quieter leaf blower | Hub - 1 views
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OK- so THIS specific thing is done. I have not seen the data (decibels @ 50') but I do know this... there are many other challenges unsolved (and largely unaddressed) out there.
Dynamic microvilli sculpt bristles at nanometric scale | Nature Communications - 0 views
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They had to use scanning electron microscopy to figure this out, yes. BUT... in scaling something like this up, we would not need such a thing!
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The refractive index tomograms of isolated bristles were obtained by Nanolive 3D Cell Explorer, and raw data were deposited at https://doi.org/10.5281/zenodo.10207240.
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This might be the way to dial in the measurement ratios to mimick something like this on a larger scale for some purpose. How do the worms use them? If this doesn't get it, we can ALWAYS email the actual scientists to see if they can send us this data to do what we're trying to do. They are usually VERY helpful in such things for creative and hard-working students.
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I am often thinking about biomimicry. I wonder if something like this process could be 3D printed at a larger scale... for another valuable use of some sort. (?)
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This one is a LOT of chew through, but it is super interesting to figure out how living things bioengineer such structures over millions of years of evolution. Biomimicry is simply us studying (and then mimicking) the most interesting things in nature... to enhance something in the human world. This article is the original journal article linked to and highlighted by one of the ScienceDaily stories from today.
Virtual reality warps your sense of time | ScienceDaily - 1 views
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Interesting, perhaps. Well, we DO have a solid VR headset.
Rocks beneath our feet could be key to carbon-neutral cement - 1 views
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This sort of thing isn't exactly my specialty, but I HAVE had a student do an award-winning project that dealt with engineered concrete...
Add to the many afterlives of coffee grounds: Toxic cleanup - 0 views
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The experts selected onion plants to test out this idea, known for their high sensitivity to toxins in the environment. In beakers of water containing bentazone, they grew onion root tissue, called meristems, measuring its cell division and root growth as a sign of health.
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One of the things I want VERY badly for our program... is a set of equipment for histology... where we can take things like onion root tips and lock samples in wax, slice them incredibly thin (microslices), and then be able to mount them onto slides for analysis.
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Study traces an infectious language epidemic | ScienceDaily - 0 views
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Rho's work is grounded in a social science framework called Fuzzy Trace Theory that was pioneered by Valerie Reyna, a Cornell University professor of psychology and a collaborator on this Virginia Tech project. Reyna has shown that individuals learn and recall information better when it is expressed in a cause and effect relationship, and not just as rote information. This holds true even if the information is inaccurate or the implied connection is weak. Reyna calls this cause-and-effect construction a "gist."
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Fuzzy Trace Theory looks interesting for this, and perhaps many other reasons. I want to learn more about this myself, and I'm wondering if this theory could be put to work in other potential behavioral science projects. What do you think?
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Five Hormones that Control Plant Growth & Development - dummies - 2 views
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Just a SUPER basic overview of phytohormones. The + is that we can obtain ALL of these for use in pure form. The - is that you need to develop a unique question/experimental design.
Model Organisms - HSR 2025 - Google Docs - 3 views
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This is a crowd-sourced document I created for a session with high school research teachers in Washington D.C. in 2022. SAVE this document and use it to explore some of the more commonly-used model organisms for all sorts of biological research. There is a TON to explore here!
Model Organisms for Research - HSRTC - 2022 - Google Slides - 4 views
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This is a slide deck I used for a presentation to research teachers in Washington D.C. last year. I will also save a link to the crowd-sourced document we created in this session where teachers too our suggested model organisms, and then added in their suggestions as well.
Neoplants - The Future of Plants - 3 views
What the Heck Is Seaweed Mining? | Hakai Magazine - 6 views
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“It’s pure chemistry,” Umanzor says. “Positive with negative, and then it just collects.”
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For those interested in chamistry topics, this looks really interesting.
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Sean Nash
District Instruction Coordinator. Marine Biology instructor. Husband. Dad. (certainly not in order of importance) North Kansas City School District, Missouri, USA