Sometimes, fluids/plasmas/active matter act like they have negative diffusivity. If this intrigues you, check out this new issue on anti-diffusive dynamics (including an article by @lewinsam.bsky.social and me on layering in stratified flows!) 🧪https://royalsocietypublishing.org/rsta/issue/384/2333

Volume 384 Issue 2333 | Philosophical Transactions of the Royal Society A | The Royal Society

Influential themed journal issues across the physical mathematical and engineering sciences.

royalsocietypublishing.org

Alberta politics go two weeks without being infuriating challenge (impossible)

As I've said before, it's only once I became a professor that I realized the entmoot, a meeting that goes on for three days and three nights, was a professor's joke about faculty meetings.

Kieran Healy@kjhealy.co · 2w ago

The Lord of the Rings is essentially a series of faculty meetings broken up by several long walks in the countryside.

time to hit refresh all evening

what a week to be teaching Kelvin waves in my GFD class

Ending the week with a super proud advisor moment: my first PhD student submitted his dissertation this morning!

KH stays winning!

Dr. Jessie Christiansen@aussiastronomer.bsky.social · 3mo ago

Are those Kelvin-Helmholtz instabilities ON THE SUN?!?!

local stratified fluid

Is there any writing task worse than a self-evaluation?

another day, another zoolander reference unnoticed by the younger generation

Celebrating students AND wearing wizard robes, commencement rules 👨‍🎓👩‍🎓

Yodenhs Mishiikenh Kwe ~ Anishinaabe 2019

Algal blooms and tulips? Say no more—we’re in🌷🌊 Captured by Copernicus Sentinel‑2 on 21 April 2026, this striking image over the Netherlands reveals a 'double bloom': the vivid patchwork of spring tulip fields alongside swirling blue‑green phytoplankton in the North Sea. www.esa.int/ESA_Multimed...

This is a long shot, but does anyone have access to "Influence of stratification on vertical turbulent mixing in the sea" by Mamayev, 1958 and/or "On a relation between heat flux and temperature gradient in the sea" by Felsenbaum and Boguslavsky, 1977?

Dreamed last night that there was a “Canadian Easter” that was in early March but the whole thing was goose based instead of bunny

I miss it so much 😭

Brett Favaro@brettfavaro.bsky.social · 9mo ago

CBCs Olympics coverage really is second to none. They hammer it out of the park every two years, like clockwork

yes

OPINION | Canadian TV needs to get weird again | CBC Arts

In the ‘80s and ‘90s, English Canadian screens were filled with bizarre, fever dream-like shows. Writer Niko Stratis argues that we need to back to that

cbc.ca

Everybody thinks 'https://' stands for 'hypertext transfer protocol secure' but it actually stands for 'head to this place, sucka' followed by a colon and two laser sounds

a lot of people are aware that you can factor 2025 = 45² i'm honored to announce the factorization 2026 = (45-i)(45+i)

shout-out to the student who wrote down a fun fluids fact he learned along with some sick sketches of airplanes on a blank page of his final

gonna start calling index 0 the array-de-chaussée

Life isn’t simple like math where every problem has an answer; it’s more like math, where problems have many answers or no possible answer at all!

☃️In the meadow we can build a snowman Then pretend that he is Parson Brown He'll say: Are you married? we'll say ...𝐧𝐨 𝐦𝐚𝐧! 𝐘𝐨𝐮 𝐥𝐨𝐨𝐤 𝐮𝐩𝐨𝐧 𝐚 𝐰𝐨𝐦𝐚𝐧. É𝐨𝐰𝐲𝐧 𝐈 𝐚𝐦, É𝐨𝐦𝐮𝐧𝐝'𝐬 𝐝𝐚𝐮𝐠𝐡𝐭𝐞𝐫. 𝐁𝐞𝐠𝐨𝐧𝐞, 𝐢𝐟 𝐲𝐨𝐮 𝐛𝐞 𝐧𝐨𝐭 𝐝𝐞𝐚𝐭𝐡𝐥𝐞𝐬𝐬! 𝐅𝐨𝐫 𝐥𝐢𝐯𝐢𝐧𝐠 𝐨𝐫 𝐝𝐚𝐫𝐤 𝐮𝐧𝐝𝐞𝐚𝐝, 𝐈 𝐰𝐢𝐥𝐥 𝐬𝐦𝐢𝐭𝐞 𝐲𝐨𝐮.

beginning to suspect spotify is just making up genres

every day I get emails

ah yes, the evening nap, the most dangerous of naps

"Oh it will be good to do a bunch of the midterm grading myself, that way I'll get a better sense of how my students are doing", said some fool* who hates free time *me last Friday

Hey astrophysicists, a presence (absence) of KH billows in some astrophysical shear flow doesn't always imply a lower (upper) bound on the local magnetic field strength! See arxiv.org/abs/2510.031...

Nonmodal growth and optimal perturbations in magnetohydrodynamic shear flows

In astrophysical shear flows, the Kelvin-Helmholtz (KH) instability is generally suppressed by magnetic tension provided a sufficiently strong streamwise magnetic field. This is often used to infer up...

arxiv.org

Hey fluids friends, we're recruiting in my department this year!

Berkeley Mechanical Engineering@berkeleyme.bsky.social · last yr.

#BerkeleyME is seeking applicants for a tenure-track Assistant Professor position in Fluid Mechanics/Fluid Dynamics. me.berkeley.edu/faculty/me-o...