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Thony Christie

@rmathematicus.bsky.social

Aging freak who fell in love with the history of science and now resides mostly in 16th century Nürnberg.

11,715 Followers  |  657 Following  |  3,378 Posts  |  Joined: 14.08.2023  |  1.967

Latest posts by rmathematicus.bsky.social on Bluesky

Highly recommended

13.02.2026 19:03 — 👍 5    🔁 1    💬 0    📌 0

What are the gnomes up to now?

13.02.2026 18:32 — 👍 0    🔁 0    💬 0    📌 0
Achilles Pirmin Gasser Achilles Pirmin Gasser, a physician, historian, astrologer, and cosmographer was born on November 3rd, 1505, on the island town of Lindau on the Boden

I liked that talk so much I wrote a bit more about one of the volumes mentioned in it a few weeks later. 😂 www.lindahall.org/about/news/s...

13.02.2026 17:52 — 👍 1    🔁 2    💬 1    📌 0

Bugger! Two more books, for which I have no space, on the too read pile. I blame you, Galle!

13.02.2026 18:29 — 👍 2    🔁 0    💬 1    📌 0
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After Hours with Banned Books September 30, 2021, via Zoom The program: In 1616, nearly 75 years after Nicholaus Copernicus’ theories on planetary motion first appeared in print, the…

Yes, I loved her book! And she gave a really great show & tell talk with Jamie Cumby using examples of censored books from the Linda Hall Library collections a few years back: vimeo.com/619909931

13.02.2026 17:37 — 👍 1    🔁 2    💬 1    📌 0
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A Pilot Fired Over Kristi Noem’s Missing Blanket and the Constant Chaos Inside DHS Secretary faces fire for confrontational immigration crackdown and self-promotional style; White House to wind down Minnesota operations.

"Within DHS, Noem and Lewandowski frequently berate senior level staff, give polygraph tests to employees they don’t trust and have fired employees—in one incident, Lewandowski fired a U.S. Coast Guard pilot after Noem’s blanket was left behind on a plane." www.wsj.com/politics/pol...

13.02.2026 13:39 — 👍 8    🔁 2    💬 2    📌 2

😎

13.02.2026 16:44 — 👍 1    🔁 0    💬 0    📌 0

Bumping this up for the morning crowd...

13.02.2026 14:20 — 👍 4    🔁 2    💬 1    📌 0

Has anyone studied how researchers and academics use library catalogues? I'm struggling to find any literature on researcher (not student) information needs and information seeking behavior. Any leads?

My focus is rare books/archives/special collections, but I'm looking broadly right now.

11.02.2026 16:24 — 👍 22    🔁 21    💬 11    📌 1

“Though Black women only account for about 14% of the workforce, they represented over half of all women’s job losses during the U.S. employment market’s most volatile months in 2025, like March, April, June, and December.”

13.02.2026 11:36 — 👍 263    🔁 177    💬 3    📌 6
My linocut print of the Pigeonhole Principle shows Dirichlet in blue, a bearded man with heavy brow, wearing a suit with arms crossed, looking a bit cross. Behind him is a bank of pigeonholes in a gradient of blue to gold. Each one contains one or two pigeons in black on grey with turquoise and violet markings. The pigeonholes may extend infinitely in all directions - the shelves appear to go on beyond the 4 x 7 array of pigeonholes shown.

My linocut print of the Pigeonhole Principle shows Dirichlet in blue, a bearded man with heavy brow, wearing a suit with arms crossed, looking a bit cross. Behind him is a bank of pigeonholes in a gradient of blue to gold. Each one contains one or two pigeons in black on grey with turquoise and violet markings. The pigeonholes may extend infinitely in all directions - the shelves appear to go on beyond the 4 x 7 array of pigeonholes shown.

Happy birthday to #mathematician Johann Peter Gustav Lejeune Dirichlet (13 February 1805 – 5 May 1859)! 🧪🐡🧮 #histsci My lino block print illustrates the famous mathematical tool known as the pigeonhole principle, which states that if n items are put into m containers, with n > m, then at least one

13.02.2026 13:15 — 👍 23    🔁 9    💬 2    📌 0
Preview
New Medieval Books: The Monastic World - Medievalists.net This book introduces the reader to monks and monasteries in medieval Europe, detailing the evolution of this important institution in Christianity. It explores how monasticism transformed over the…

New Medieval Books: The Monastic World www.medievalists.net/2025/02/new-... #book

13.02.2026 13:17 — 👍 3    🔁 2    💬 0    📌 0
MSN

The Wall Street Journal story on Noem and Lewandowski is just a bus running over them, backing up, running over them again, and on and on. A line of admin officials waiting to get their turn at the wheel.

Paywalled at WSJ, free at MSN (good biz model)

www.msn.com/en-us/news/p...

13.02.2026 12:34 — 👍 310    🔁 106    💬 20    📌 12

Hey, my name is in the Epstein files! I've told the story before, but should probably re-up.

TLDR: never met the guy, never took (or asked for) any money from him, never visited the island. I was invited to the island, and said no.

It's not that hard to just say no.

09.02.2026 15:38 — 👍 2173    🔁 292    💬 23    📌 43
Show Me the Data: New Practices for Historical Sources | Transactions of the Royal Historical Society | Cambridge Core Show Me the Data: New Practices for Historical Sources

@kmcdono.bsky.social @danielwilson.bsky.social and I have a new OA article out: eur01.safelinks.protection.outlook.com?url=https%3A... It’s about the fragmented landscape of historical data, and what we can do about it to improve discoverability, sustainability and reuse.

13.02.2026 12:33 — 👍 15    🔁 11    💬 0    📌 2

Oh yes! I've had dogs who were brilliant actors

13.02.2026 09:12 — 👍 1    🔁 0    💬 0    📌 0
A vibrant Kingfisher in flight, captured in a streamlined position as it darts through the air. The bird's striking electric blue back and wings contrast with its bright orange underbelly. Its long, pointed beak is sharp and focused, as if it's hunting for prey. The background is a soft blur of green and brown hues, highlighting the kingfisher’s swift movement against the natural environment.

A vibrant Kingfisher in flight, captured in a streamlined position as it darts through the air. The bird's striking electric blue back and wings contrast with its bright orange underbelly. Its long, pointed beak is sharp and focused, as if it's hunting for prey. The background is a soft blur of green and brown hues, highlighting the kingfisher’s swift movement against the natural environment.

Zooming into #FlyDay!

📷 Martin Abbess

13.02.2026 08:01 — 👍 487    🔁 100    💬 6    📌 10

Great fun @humanists.uk Darwin Day Lecture last night - an honour to be invited to speak. Everyone seeee to enjoy themselves - should be online in a while.

13.02.2026 09:00 — 👍 10    🔁 1    💬 1    📌 0

It's Pam Bondi testifying before the House Judicial Committee

13.02.2026 07:01 — 👍 2    🔁 0    💬 0    📌 0
Preview
7-Year-Old Migrant Girl Dies Of Dehydration And Shock In U.S. Border Patrol Custody The girl's death underscores the crisis precipitated by large groups of families seeking asylum where there are inadequate facilities to detain them.

CBP didn’t give her or anyone any water; she asked 3 times accg to other reports. CBP killed a 7yr old.

“8 hours after the girl & her father were taken into custody, she began having seizures & her body temperature was measured at 105.7 degrees by emergency medical technicians. shorturl.at/d2OTJ

13.02.2026 01:33 — 👍 5274    🔁 3102    💬 197    📌 401

Übermittlungskanalverwirrungsschockstarre

13.02.2026 05:24 — 👍 25    🔁 4    💬 0    📌 0
A dismantled 17thC Islamic astrolabe, showing alidade, rete, mater and five plates.

A dismantled 17thC Islamic astrolabe, showing alidade, rete, mater and five plates.

A close-up of the front of a Persian astrolabe, c. 1800, showing the horse, pushed through the central pin.

A close-up of the front of a Persian astrolabe, c. 1800, showing the horse, pushed through the central pin.

I had a pleasant day mostly looking at astrolabes. Did you know that the little bit of metal that keeps the pin in place is called the horse? In the case of the later example on the right it is actually shaped like one #histSTM 📜

12.02.2026 20:34 — 👍 67    🔁 7    💬 2    📌 0
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CARTOON OF THE DAY 😕

(From @andertoon.bsky.social )

13.02.2026 04:06 — 👍 8349    🔁 2913    💬 213    📌 139
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The estimable @drkyliesmith.bsky.social speaking at @anzshm.bsky.social NSW Branch dinner & AGM in Sydney March 5, from 5.30 pm. Non-members welcome. RSVP: events.humanitix.com/anzshm-agm-2...
@austhistassoc.bsky.social #histmed #histstm

13.02.2026 06:49 — 👍 1    🔁 2    💬 1    📌 0
My lino block print shows a portrait of a woman in indigo, Esther Lederberg, with curly short hair in a 1940s hairdo, lab coat with collar and gloves, holding a Petri dish vertically in each hand in front of her. Each Petri dish in bronze has the same pattern of marks. She is surrounded by silvery green E. coli bacteria of exaggerated size, several which are being attacked by bacteriophages. Both lysis (phages reproducing inside cells, then exploding out of cells) and lysogeny (genetic material indicated by gold section of tangle of DNA is quietly integrated into that of the cell). The plasmid shown in some but not all E.coli alludes to the bacterial fertility factor F.

My lino block print shows a portrait of a woman in indigo, Esther Lederberg, with curly short hair in a 1940s hairdo, lab coat with collar and gloves, holding a Petri dish vertically in each hand in front of her. Each Petri dish in bronze has the same pattern of marks. She is surrounded by silvery green E. coli bacteria of exaggerated size, several which are being attacked by bacteriophages. Both lysis (phages reproducing inside cells, then exploding out of cells) and lysogeny (genetic material indicated by gold section of tangle of DNA is quietly integrated into that of the cell). The plasmid shown in some but not all E.coli alludes to the bacterial fertility factor F.

For #printerSolstice2526 prompt 2: my #linocut of trailblazing #microbiologist Esther Lederberg (née Zimmer, 1922-2007) 🧪🐡👩🏼‍🔬 #histsci who made discoveries fundamental to modern understanding of bacterial gene regulation, recombination & exchange, but her work was both overshadowed by & sometimes 🧵

12.02.2026 14:54 — 👍 20    🔁 6    💬 4    📌 1
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Historian of science Janet Browne, author of the definitive biography of Charles Darwin (Voyaging, 1995; The Power of Place, 2002) will publish an abridged and updated one-volume version this June with @princetonupress.bsky.social: bit.ly/4mS7R0Q

#DarwinDay #HPS #histsci

12.02.2026 18:09 — 👍 34    🔁 13    💬 2    📌 1
Screenshot of a KU Leuven Centre for Logic and Philosophy of Science (CLPS) event webpage announcing a seminar by Jasper Eeckhout titled The Logoi of Logic: On the development of the first logic textbooks in various European vernaculars. The page lists the date (13 February 2026, 2:00–4:00 PM, Europe/Brussels), location (HIW 01.20, room N), and includes sections for title, speaker, website, and abstract. 

Abstract
In the sixteenth century, for the first time, logic textbooks were being written and published in a multitude of European vernaculars. Even though logic was, and continued to be, taught and practiced in Latin, in particular at universities, authors from different backgrounds were driven to write in their own vernacular. Contemporary scholarship has addressed the development of logic in some (but not all) of the European vernaculars in this period. However, virtually no attempt has been made to study the patterns and tendencies that hold across the different vernaculars in which these logic textbooks were written. This is unfortunate because studying these cross-vernacular patterns can shed important light on a multitude of questions pertaining to the dissemination of scientific and philosophical knowledge. A valuable starting point to address these patterns is an exploration of the similarities and differences concerning the impact and success of these first vernacular textbooks.

Taking this into account, my CLPS-lecture aims to analyse and compare the trajectory and influence of these first textbooks in the European vernaculars. First, I give an overview of the 16th-century logical landscape, starting from the clash between scholasticism and humanism that resulted in a new Latin textbook tradition. Then, I consider the nature of the vernacular textbooks and the various motives of the authors to write works of logic in their own vernacular. Finally, I discuss the factors that were involved in shaping the impact and success of these textbooks.

Screenshot of a KU Leuven Centre for Logic and Philosophy of Science (CLPS) event webpage announcing a seminar by Jasper Eeckhout titled The Logoi of Logic: On the development of the first logic textbooks in various European vernaculars. The page lists the date (13 February 2026, 2:00–4:00 PM, Europe/Brussels), location (HIW 01.20, room N), and includes sections for title, speaker, website, and abstract. Abstract In the sixteenth century, for the first time, logic textbooks were being written and published in a multitude of European vernaculars. Even though logic was, and continued to be, taught and practiced in Latin, in particular at universities, authors from different backgrounds were driven to write in their own vernacular. Contemporary scholarship has addressed the development of logic in some (but not all) of the European vernaculars in this period. However, virtually no attempt has been made to study the patterns and tendencies that hold across the different vernaculars in which these logic textbooks were written. This is unfortunate because studying these cross-vernacular patterns can shed important light on a multitude of questions pertaining to the dissemination of scientific and philosophical knowledge. A valuable starting point to address these patterns is an exploration of the similarities and differences concerning the impact and success of these first vernacular textbooks. Taking this into account, my CLPS-lecture aims to analyse and compare the trajectory and influence of these first textbooks in the European vernaculars. First, I give an overview of the 16th-century logical landscape, starting from the clash between scholasticism and humanism that resulted in a new Latin textbook tradition. Then, I consider the nature of the vernacular textbooks and the various motives of the authors to write works of logic in their own vernacular. Finally, I discuss the factors that were involved in shaping the impact and success of these textbooks.

In the 16th century, #logic textbooks started to be written in languages other than Latin in Europe. Tomorrow, in our CLPS seminar, Jasper Eeckhout will present a study of cross-vernacular patterns that sheds light on the dissemination of scientific & philosophical knowledge #HPS #philsky #philsci

12.02.2026 14:54 — 👍 6    🔁 4    💬 1    📌 0
Mason @realMasonMohon : 1h

You have a pride flag in your bio. You obviously think marriage is a term with no actual content that can be applied to anything. No wonder we say you don’t understand marriage

Ephraim Stone @TEStoneWrites - ih

The rainbow in my bio is a reminder that G-D will never again bring destruction to creation, that His covenants are eternal, that his word is unfailing, and that His gifts to my foremothers and forefathers are everlasting.

Mason @realMasonMohon - 23m

Apologies for misunderstanding. As I’m sure you know, many others use it to represent something else

Ephraim Stone @TEStoneWrites

I also suck dick

Mason @realMasonMohon : 1h You have a pride flag in your bio. You obviously think marriage is a term with no actual content that can be applied to anything. No wonder we say you don’t understand marriage Ephraim Stone @TEStoneWrites - ih The rainbow in my bio is a reminder that G-D will never again bring destruction to creation, that His covenants are eternal, that his word is unfailing, and that His gifts to my foremothers and forefathers are everlasting. Mason @realMasonMohon - 23m Apologies for misunderstanding. As I’m sure you know, many others use it to represent something else Ephraim Stone @TEStoneWrites I also suck dick

12.02.2026 00:48 — 👍 8769    🔁 1746    💬 28    📌 69
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Did you know, its not all words and letters in Charles Darwin's Archive!
Here's a few of our favourite things for #DarwinDay!
cudl.lib.cam.ac.uk/collections/...
(1/10)

12.02.2026 11:08 — 👍 16    🔁 4    💬 1    📌 1
A well-dressed woman on a horse, and the horse wears among other decoration plumes and feathers. This detail is from a title page of a 1587 print: https://data.onb.ac.at/rep/1028CA7C

A well-dressed woman on a horse, and the horse wears among other decoration plumes and feathers. This detail is from a title page of a 1587 print: https://data.onb.ac.at/rep/1028CA7C

Entering the weekend in style in 1587 ... #skystorians

12.02.2026 10:50 — 👍 29    🔁 3    💬 1    📌 0

@rmathematicus is following 20 prominent accounts