Malcolm Hillebrand
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the-chaotician.bsky.social
Malcolm Hillebrand
@the-chaotician.bsky.social
Lecturer and researcher of chaos, biophysics and various things dynamic at the University of Cape Town. Previously a postdoc at MPI-PKS in Dresden. Musician and occasional music writer; follower of Jesus.
It will doubtless be illuminating to many looming lumenous luminaries. Enjoy! And good job to Chandra 👏
October 8, 2025 at 8:09 AM
4. Working/collaborating with people from all over the world. Particularly thanks to my time at @mpipks.bsky.social and @csbdresden.bsky.social, I get to talk to scientists from over a dozen countries. It's pretty wild. Without a doubt, science is stronger together! 🇿🇦🇩🇪🇬🇷🇪🇸🇨🇲🇬🇧🇺🇸🇱🇰🇮🇷🇮🇹🇫🇷🇮🇳🇿🇼🇪🇹🇺🇬🇳🇱🇦🇲🇱🇺🇨🇳
June 11, 2025 at 2:22 PM
3. Applying for a Visa every year 🛂 (guess what I was busy with yesterday...). Getting to travel for conferences and visits is a huge privilege. The expense, bureaucracy and time needed for Visas is crazy though 😵‍💫 If you've got a strong passport, enjoy it! And spare us 3rd world souls a thought...
June 10, 2025 at 10:24 AM
2. Fluid dynamics. Now, that's not the most surprising pastime for an applied mathematician. But after being scarred by undergrad FD, I never thought I'd make friends with Navier and Stokes again (although now it's in biological active fluids, so Navier-Stokes++). Never rule anything out!
June 6, 2025 at 2:03 PM
1. The one that sparked this idea: Working with videos of actual real cells moving around, recorded through a microscope. I didn't do the experiments, but just doing the image analysis has given me even more respect for the Squishy Specialists who do this all the time 🔬🧬🫡
June 5, 2025 at 2:23 PM
"A theorem a day keeps social interaction at bay".

I am however thrilled that the rest of the world now gets to witness the birth of Euclidean Biology! #Iwasthere

Less thrilled that the oldest reference is only 1960. Standards are slipping...
April 25, 2025 at 2:04 PM
But Hark! Most suddenly exploding
At once, everywhere, everything
Not a puff in sight
Nothing local, not even quite
Discontinuous, without hydro screening
January 31, 2025 at 2:24 PM
Now cranking activity higher
A vortex emerged from the mire
A pair then a trio
Elongated and 𝘤𝘰𝘯 𝘣𝘳𝘪𝘰
Even oscillating, they never did tire
January 31, 2025 at 2:24 PM
The fuel at first was low
And speed commensurately slow
Everything was laminar
To the closest examiner
But there's more than just shear flow
January 31, 2025 at 2:21 PM
There once was an active nematic
Whose motion was most acrobatic
Chaotically it swirled
The threads they all twirled
But the cause was rather dramatic
January 31, 2025 at 2:20 PM
A sunny January day in Dresden? On a weekend?! Now that is a rare sight.

In full disclosure, I too failed to mention the 35km/h winds along my route last week 😆 so we'll call it quits.
January 20, 2025 at 6:24 AM