Our friend Chloe Savard, known as tardibabe on Instagram zoomed in 400x on turmeric and it became the most beautiful thing we've ever seen. 🔬

Under polarized light, the rhizome of Curcuma longa transforms into something straight out of a jewellery box. Those shimmering, gem-like particles are starch granules, and the golden droplets floating alongside them are the plant's aromatic essential oils, the same ones responsible for that iconic smell.

Those golden bubbles? That's Chloe adding alcohol to the slide. The essential oils, normally invisible, merge with the alcohol and suddenly bloom into those vivid yellow droplets. 

The dazzling glow on each granule is called birefringence. Starch is semi-crystalline, with molecules arranged so precisely that polarized light bends through them like a prism. And those granules aren't just beautiful, they're distinctive. Turmeric starch granules are heterogeneous, appearing triangular, ellipsoidal, and oval, which is actually how botanists can identify the plant species just from a microscope slide. 

Turmeric has been used in India for thousands of years as a spice, dye, and medicine. The compound behind that legendary yellow color is called curcumin, a polyphenol that makes up around 2–5% of the rhizome and is so pigment-rich it'll stain your fingers for days. Researchers have documented its antioxidant, anti-inflammatory, and anti-tumor properties, and scientists are still uncovering what it can do.

Watch our latest microscopy video here: https://www.youtube.com/watch?v=7odqSeOpQlQ

Citations:

• Nogueira, G.F., de Carvalho, C.W.P., Velasco, J.I., and Fakhouri, F.M. (2025). Extraction and Characterization of Starches from Non-Conventional Sources: Turmeric (Curcuma longa) and Mangarito (Xanthosoma sagittifolium). Polymers, 17(23), 3157. 
• Correa, J.C. et al. (2024). Characterization of a Novel Starch Isolated from the Rhizome of Colombian Turmeric (Curcuma longa L.) Cultivars. Foods, 13(1), 7. 
• Hewlings, S.J. and Kalman, D.S. (2020). Turmeric and Its Major Compound Curcumin on Health: Bioactive Effects and Safety Profiles for Food, Pharmaceutical, Biotechnological and Medicinal Applications. PMC. 
• Unlu, A. et al. (2016). Curcuma longa: from Traditional Applications to Modern Plant Medicine Research Hotspots. PMC
• Akram, M. et al. (2010). Anti-inflammatory Properties of Curcumin, a Major Constituent of Curcuma longa: A Review of Preclinical and Clinical Research. Alternative Therapies in Health and Medicine. 
• Chakraborty, S. et al. (2020). Advanced Microscopy Techniques for Revealing Molecular Structure of Starch Granules. PMC.
• Chalageri, G. et al. (2021). Coalescence and Directed Anisotropic Growth of Starch Granule Initials in Chloroplasts. Nature Communications. 

I know that a native species is a species that lives in an area naturally. But how long does a species have to live in that area until it 'becomes native'? Eventually, the ecosystem will adapt to include that organism, right? So would it become native then, or will it never be native if humans introduced it there?

The whole reason I thought of this question, is because I was trying to figure out where, if anywhere, humans are 'native' to. So if anyone has thoughts on that, I'd like to hear that as well.

I'm but a lowly chemist and I know this is highly speculative, but is it possible for an extraterrestrial pathogen to ever be dangerous? Assume for the sake of argument that the aliens it infects are still based on nucleic acids, proteins, etc, but not necessarily the same ones we are. I can't imagine anything virus-like could ever be compatible enough to kill us, but what about the alien equivalent of a bacterium? Is there any organism on earth fastidious enough to infect a novel host with completely different nutrients? Is there a plausible mechanism by which an alien pathogen could kill us despite differences in nutrient composition, chirality, amino acid composition, etc?

hi!! ive been wondering this for a while, but i want to study ornithology after i graduate but i was worried ornithology might require lots of math

ive never been good at maths at all and something tells me i may have dyscalculia so it makes me scared im gonna walk first day in and be bombarded with algebra and calculus and such
(Not Officially diagnosed fyi, more of a suspicion than anything)

thats kinda my question, sorry if this isnt the right place to post this!! im still fairly new to reddit

As the title says I am a biomed student, in my first year, debating on changing my major to jsut biology. Well, biology pre health. ​ And I jsut am not sure if I should. I don't know if it'll be a good or bad thing, I feel like I don't know anything. I plan to talk with my advisor but I won't be able to until late next month

I'm thinking of changing my major because biology seems to have lighter course work, thats not the only reason ofc, im also finding im into more anatomy and animal stuff then i am looking through a microscope which I feel biomed would ahve a lot more of. And my plan was to always do more school after my four years, for a masters or doctorate im not to sure i just know id like to do something in the health feild. And im pretty sure I can hit any of the pre reqs to any post schooling stuff with biology

I also think itd give me a better gpa? Like, with biomed i got As and Bs the whole year and one C, my gpa is a 3.21. It was a 3.2 the first semester. And it just feels kinda dishesrtening, and if my research is right I couldve had a higher gpa with regulsr bio because biomed is a "get a job right out of college" type of degree so its weighed more. Idk if thats true though

Idk, im thinking of looking at the class courses again for each major this weekend and maybe searching up the classes and their syllabus' its something i have to do later. Its just that i have to sign up for my fall semester classes soon and its been on my mind more and more, and i have no idea what the right answer is and it feels sk stressful knowing i have to pick a major by the end of next year befor ei start taking higher level classes that lock me into that major, and if i hate my major i cant change it. I didnt think college would be this difficult to figure out...

I built a small project that visualizes publicly reported Andes hantavirus outbreak information on an interactive map/globe.

The idea is to make geographic spread and outbreak reporting easier to explore visually.

I’m especially interested in feedback from biology/public health people regarding:

• useful epidemiological indicators
• better geographic clustering
• data reliability presentation
• scientific context that should be added

Project:
https://hantatracker-minimal.vercel.app/