Jan Trnka
jantrnka.bsky.social
Jan Trnka
@jantrnka.bsky.social
Scientist, teacher, wanderer, musician. Cancer metabolism, mitochondria, Bayesian #rstats at Charles University.
ORCID https://orcid.org/0000-0002-1786-7562
Lectures https://www.youtube.com/@jantrnka227
Music https://severninastupiste.bandcamp.com
Reposted by Jan Trnka
The breathtaking beauty of Persian architecture.
ph: ghasem.baneshi
November 10, 2025 at 8:59 PM
Reposted by Jan Trnka
How the ancient parable of the stone soup helps us think about billionaires youtube.com/shorts/KWlH0...
Billionaire stone soup #economy #bigtech #billionaire
YouTube video by Brett's Altered States of Monetary Consciousness
youtube.com
November 10, 2025 at 3:06 PM
Reposted by Jan Trnka
China oil consumption for road transport down 9% this year.
Denmark oil consumption down 11% in 2024.
Not many similarities between the two countries but good to see the shared path before us.
A reminder that the EU spends 120bn euro per year on oil for road transport.
"Far from a peak, China's gasoline demand is estimated to have fallen 9% in October on the year to 12.5 million tons, with average daily use roughly flat with September..."

China's oil demand is entering structural decline.
EVs put an end to China's usual holiday surge in gasoline use
Tianyu Jiang took a 2,000-km (1,200-mile) road trip this month during China's national holiday week, driving in his electric vehicle from the southwestern Sichuan basin to Beijing for the first time.
www.reuters.com
November 9, 2025 at 9:31 PM
Reposted by Jan Trnka
The protein concentration in the cytoplasm is so high that the average protein has a water hydration shell with a thickness of only ≈ 10 water molecules separating it from the adjacent protein hydration shell.

1/2
November 10, 2025 at 12:57 PM
V Praze nikdy.
Pěkná, názorná AI animace. Jak stačí "málo" k tomu, aby ulice byla hezká, přívětivá, bezpečná, zelená.
November 10, 2025 at 1:36 PM
Reposted by Jan Trnka
The relevant bit of grump from the quoted post (left). And age distribution of Max Planck directors (right)
November 10, 2025 at 8:42 AM
Reposted by Jan Trnka
The crisis at the BBC shows how embattled and defensive serious news organisations have become - and how close they are to yielding, pre-emptively, and being overwhelmed, by authoritarian populists.
November 10, 2025 at 12:07 AM
Novinářstvo iRozhlasu si bohužel ani nezjistilo, o co ve sporu šlo, jen přeložilo zprávu od AP. Takže Česko nabude dojmu, že zdvoj až ztrojnásobení už tak předraženého zdravotního pojištění v USA výměnou za obrovské snížení daní bohatým je "umírněná" politika a kdo byl proti tomu, je radikál.
November 10, 2025 at 6:33 AM
Love it.
November 9, 2025 at 10:01 PM
Reposted by Jan Trnka
November 8, 2025 at 5:44 PM
Reposted by Jan Trnka
November 8, 2025 at 12:46 PM
One of the most amazing songs ever composed. I heard it first some 20 years ago on a recording by John Potter and the Dowland Project, who made it even more shockingly pained.
The Most Depressing Song You’ve Never Heard (From 400 Years Ago)
YouTube video by Brandon Acker
www.youtube.com
November 9, 2025 at 8:07 AM
So I tried the new Kimi2 model. Incredible progress, it seems to lie even better than ChatGPT!
November 8, 2025 at 9:58 AM
Reposted by Jan Trnka
I gave the closing keynote at posit::conf in September and it's available to watch. When you find yourself giving a talk with a little tiny microphone stuck to the side of your head you have to ask yourself some hard questions, but the talk was partly about that.

youtu.be/ZamPCbvBAgE
Trustworthy Data Visualization (Kieran Healy, Duke University) | posit::conf(2025)
YouTube video by Posit PBC
youtu.be
November 7, 2025 at 9:20 PM
TFW nedostanete grant, protože extrémně schopní spolupracovníci-klinici, kteří mají jen dodat vzorky od pacientů, mají "příliš nízké h-indexy". Bibliometrický fetišismus fakt pohřbít kilometr hluboko.
November 7, 2025 at 3:40 PM
Reposted by Jan Trnka
The world’s first trillionaire initiated a move that has left more than half a million people dead, most of whom are children.
November 7, 2025 at 7:39 AM
Reposted by Jan Trnka
I think about this post every day 🧪
November 7, 2025 at 12:15 PM
Reposted by Jan Trnka
The US is the world's largest oil and gas producer. Yet, "China is now making more money from exporting green technology than America makes from exporting fossil fuels."
China’s clean-energy revolution will reshape markets and politics
The world’s biggest manufacturer now has an interest in the world decarbonising
www.economist.com
November 7, 2025 at 11:05 AM
"Svobody, které považujeme za samozřejmé - politické, ekonomické, sexuální, individuální - byly vydobyty kombinací mimořádných bojů a mimořádného štěstí. Není na nich nic "přirozeného" či nevyhnutelného - ba naopak, jsou velmi neobvyklé. A neuvědomíme se, co jsme ztratili, dokud jich nepozbydeme."
10. The freedoms we take for granted – political, economic, sexual, individual - were won through a combination of extraordinary struggle and extraordinary luck. There’s nothing “natural” or inevitable about them. They are in fact highly anomalous. And we won’t know what we’ve lost till it’s gone.
November 7, 2025 at 7:01 AM
Reposted by Jan Trnka
Your cat when you're choking to death in your apartment
November 6, 2025 at 9:16 PM
This!

(Whole thread)
10. The freedoms we take for granted – political, economic, sexual, individual - were won through a combination of extraordinary struggle and extraordinary luck. There’s nothing “natural” or inevitable about them. They are in fact highly anomalous. And we won’t know what we’ve lost till it’s gone.
November 7, 2025 at 6:48 AM
Who was the real Roman emperor after the fall of Constantinople?

“Mehmet II, Sultan of the Ottomans and Kayser-i Rum, ruled in a way that drew on the traditions of ancient Roman emperors, just as many other imperial courts of Europe, West Asia, and North Africa did.”
The latest Pasts Imperfect is out! @rhigarthjones.bsky.social discusses Ottoman receptions of Roman antiquity. Then, Black Death mythbusting; wampum beads in Canada; celebrating Native American Heritage Month; ancient Mexican coprolites; ancient world journals by @yaleclassicslib.bsky.social & more!
Pasts Imperfect (11.6.25)
This week, historian of early Islamic material culture Rhiannon Garth Jones breaks down the reception of Roman antiquity during the Ottoman Empire. Then, dispelling myths about the Black Death; archae...
pasts-imperfect.ghost.io
November 6, 2025 at 4:31 PM
Reposted by Jan Trnka
Excited to share our latest @nature.com: How does naloxone (Narcan) stop an opioid overdose? We determined the first GDP-bound μ-opioid receptor–G protein structures and found naloxone traps a novel "latent” state, preventing GDP release and G protein activation.💊🧪 🧵👇 www.nature.com/articles/s41...
November 5, 2025 at 4:23 PM
Reposted by Jan Trnka
November 6, 2025 at 10:23 AM