#stemsundays

Some #agarart for you today on #STEMsundays ✨You can do much with bacteria but also with science in general! Stem-O-Sphere might be taking a small break for the summer but always remember that science is everywhere, is beautiful, and most importantly, it is FUN!!! Thank you to the Latham Science Engagement Initiative program for allowing us to freely explore how to best communicate science! We sincerely hope every one of our followers learned at least one new thing from our accounts/website! "Science and everyday life cannot and should not be separated."- Rosalind Franklin, discovered the molecular structure of DNA 👀🔬👌

This is #STEMsundays with Zach! This is for my Electronics class with Prof. John Goree. Our assignment was to build a circuit on our own. I chose to do a sort of adjustable temperature alarm. Basically, the temperature sensor measures temperature and outputs a voltage based off of that. And the potentiometer outputs a voltage in a similar manner, but it's adjustable. When the temperature sensor goes higher than the value of the potentiometer, then the alarm goes off. #phySICK #physics #stemeducation

This friendly little banana slug is helping resolve one of the toughest human diseases in world! By examining the mucus that these slugs make and comparing to mucus from patients with cystic fibrosis, scientists at UIowa are investigating how mucus production affects the severity of the disease! 👀They're actually quite cute, aren't they? 👀 This research is being carried out at the McCray lab, and just to let you all know, there will be a lab tour Snapchat story featuring more of their lab and the different amazing works they do! Stay tuned and check us out @uiowastem on Snapchat!!! #STEMsundays is not over just yet!!!🔬👌👀 (at University of Iowa)

#STEMsundays post today featuring bacteria that you can find on your skin! Between the two plates shown, we have samples coming from hands, a forehead, nostrils, and an ear. As you can see, bacteria can live anywhere, even on you! You may be wondering how is it that you are not sick, but some of the bacteria on these plate are not harmful but may actually be helping you defend from worse things! On the second picture, you have bacteria underneath a yellow area, meaning that these bacteria can ferment as a form of energy production. Fermentation is a type of energy making that does not involve oxygen! Bacteria, even the "good" ones, are scary versatile! Watch out for more content like this next week!!!! #microbiology #microbiome

A way your white blood cells protect you from invaders is by eating and kinda "chewing" the bad stuff out of your body, AKA phagocytosis 😋The pictures shown here have lawns of bacteria that were combined with D. dicstellium amoeba. The clearings around the lawns of bacteria, formed after the amoeba were added, are incredible and the reason why this happened is the amoeba ate the bacteria, like WBCs do it! The other pictures show side angles of the plate because what the amoebas do to eat the bacteria is that they form "slugs" (a bunch of amoebas banded together), which stand straight up on the plate like little hairs after they eat bacteria! Freaky science at its best!!!😮😮😮 This is #STEMsundays for you!!!

***DISCLAIMER THIS MIGHT BE A LITTLE GRAPHIC FOR SOME USERS*** But this video shows a frog leg twitching thanks to an electric current running through it. In this video, it twitched!!! 👀Some of the other experiments we tried out involved seeing how hard this muscle contracts in reaction to how strong the stimulus is and/or how often the stimulus occurs. When the stimulus occur constantly, the muscle just keeps contracting without rest, and this is also known as tetanus! Your body does amazing stuff to keep you alive!!!! 👌 Tune in again next week for #STEMsundays

All the cells in your body are different! The first picture shows a sample from an organ that has least four different types of cells in it! One of the types is called epithelial cells, which are the rectangular cells in the uppermost layer of the pic 👀 Next picture shows a really important other type of cell tissue called cardiac! As you might have guessed, it belongs to the heart ❤️❤️❤️It's arranged in parallel lines, which a nice feature that helps the organ contract 💪💪💪The study of tissues and their function within their organism is called histology. Cool, right???? Tune in next time for #STEMsundays and learn more neat stuff!!! #stemeducation #stemed #histology #biology

Have you ever heard of using Windex for acne? I decided to put this to the test to see if Windex would have any effect on an unknown culture of bacteria and compare it to an acne antibiotic. I tested this using a disk diffusion assay, where you dip a paper disk on whatever liquid you want to test then place on a plate full of the bacteria of your choice. If your desired liquid has a biocide effect (it kills the bacteria), then you will see a clear zone around your disk! The bigger the clear zone around the disk, then the bigger its "killing" effect! I did the same dilutions of both Windex and Spironolactone to see if there was a difference in effect according to concentration. My experiment control was a disk dipped in sterile water. So 👀 at the results and tell me... is Windex possibly better at killing this bacteria or the Spironolactone meds??? 📝💡🔬#STEMsundays #microbiologylab #stemed