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Thony Christie

@rmathematicus

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

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14.08.2023
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Latest posts by Thony Christie @rmathematicus

Spell like no one is watching.

09.03.2026 17:35 👍 503 🔁 70 💬 41 📌 28
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History and Medicine - Associate Professor or Professor with Tenure - McMaster University This role is designed for an exceptional scholar whose work bridges humanities-based historical inquiry and contemporary infectious diseases scholarship, with particular emphasis on the history of pla...

Cool opportunity to work at the intersections of climate/environmental history and history of medicine!

History and Medicine – Associate Professor or Professor with Tenure – McMaster University

Apply by March 31st

niche-canada.org/2026/03/05/h...

#envhist #histmed #climhist #cdnhist

07.03.2026 23:51 👍 44 🔁 41 💬 0 📌 2
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The naming of America Some weeks ago I stumbled into an exchange amongst historians on Twitter about the origin of the Name of America and was totally stunned to learn that a very successful English popular historian an…

The Florentine navigator Amerigo Vespucci, after whom Waldseemüller and Ringmann erroneously named America, was born 9 March 1451 #histsci
thonyc.wordpress.com/2014/09/05/t...

09.03.2026 06:43 👍 5 🔁 4 💬 0 📌 1
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Twinkle, twinkle little star how I wonder where you went? On 3rd of August 1596 the Frisian amateur astronomer David Fabricius first observed the variable star Mira. There is some evidence that Mira might have been observed by earlier astronomers but it w…

The Frisian amateur astronomer David Fabricius, the first to establish by observation the existence of a variable star, Mira, was born 9 March 1596 #histsci
thonyc.wordpress.com/2009/08/03/t...

09.03.2026 06:37 👍 15 🔁 7 💬 0 📌 0
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Me & Country Joe This is one of my occasional autobiographical posts and has nothing to do with the history of science so, if you come here just for that you can skip this post. I also chronicles the heavy use of p…

Some personal memories evoked by the death of Country Joe McDonald
thonyc.wordpress.com/2026/03/09/m...

09.03.2026 14:14 👍 3 🔁 0 💬 0 📌 0
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Theophrastus on First Principles Cambridge Core - Archaeology: General Interest - Theophrastus on First Principles

#openaccess until March 20: a book on Theophrastus on First Principles

www.cambridge.org/core/element...

#philsky

09.03.2026 11:22 👍 18 🔁 4 💬 0 📌 0

A week left to reply for this fantastic role. Closes 15 March

09.03.2026 10:10 👍 15 🔁 25 💬 0 📌 0
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The naming of America Some weeks ago I stumbled into an exchange amongst historians on Twitter about the origin of the Name of America and was totally stunned to learn that a very successful English popular historian an…

The Florentine navigator Amerigo Vespucci, after whom Waldseemüller and Ringmann erroneously named America, was born 9 March 1451 #histsci
thonyc.wordpress.com/2014/09/05/t...

09.03.2026 06:43 👍 5 🔁 4 💬 0 📌 1
Preview
Twinkle, twinkle little star how I wonder where you went? On 3rd of August 1596 the Frisian amateur astronomer David Fabricius first observed the variable star Mira. There is some evidence that Mira might have been observed by earlier astronomers but it w…

The Frisian amateur astronomer David Fabricius, the first to establish by observation the existence of a variable star, Mira, was born 9 March 1596 #histsci
thonyc.wordpress.com/2009/08/03/t...

09.03.2026 06:37 👍 15 🔁 7 💬 0 📌 0

“The whole Solar System is here represented, the comparitive Distances and Magnitude of every Planet & their Satellites, and all their true Motions made by turning a small crank in the manner a Man turns a Grind stone..."

More info: penntoday.upenn.edu/news/rittenh...

#histSTM #histsci #astronomy

08.03.2026 19:57 👍 35 🔁 11 💬 0 📌 0

De 'Copernicus' van Tresoar heeft de aantekeningen van Gemma Frisius (1508-1555). Het is een van de belangrijkste boeken in Nederland.

Nu te zien naar een exemplaar dat zwaar gecensureerd is, bij Teylers in Haarlem.

08.03.2026 19:03 👍 10 🔁 4 💬 1 📌 0
Country Joe McDonald holding a guitar in 1981. A card reads: "1942-2026: Country Joe McDonald, Artist Whose Antiwar Song Became an Anthem, Dies at 84. Photo by United Archives, via Getty Images."

Country Joe McDonald holding a guitar in 1981. A card reads: "1942-2026: Country Joe McDonald, Artist Whose Antiwar Song Became an Anthem, Dies at 84. Photo by United Archives, via Getty Images."

Country Joe McDonald, one of the starring acts at Woodstock whose satirical anti-Vietnam War song “I-Feel-Like-I’m-Fixin’-to-Die Rag” became an anthem, died on Saturday. He was 84. www.nytimes.com/2026/03/08/a...

08.03.2026 19:06 👍 343 🔁 104 💬 31 📌 47
Pixelated black and white Voyager photo of Io, showing a plume from a volcanic eruption.

Pixelated black and white Voyager photo of Io, showing a plume from a volcanic eruption.

Voyager 1 captured the first evidence of an extraterrestrial volcanic eruption #OTD in 1979, on Jupiter's moon Io.

The plume in this image was discovered by astronomer Linda A. Morabito, working as a JPL engineer at the time, and announced a few days later. 🔭 🧪 👩‍🔬

Image: NASA/JPL

08.03.2026 18:55 👍 85 🔁 22 💬 0 📌 0
Part of a page of a medieval manuscript that had a hole cut into it. Underneath it is a restoration of a large decorated B, which would have been in this place, and which was restored by Eliza. The letter emulates the medieval style of script, but the image inside it is in a late 18th century style, showing a verdant tree standing against a green bucolic landscape.

Part of a page of a medieval manuscript that had a hole cut into it. Underneath it is a restoration of a large decorated B, which would have been in this place, and which was restored by Eliza. The letter emulates the medieval style of script, but the image inside it is in a late 18th century style, showing a verdant tree standing against a green bucolic landscape.

In the 1790s a London woman named Eliza Denyer developed a modest reputation as a restorer of medieval manuscripts. She was forgotten by scholars and, in one case, her restorations were deliberately replaced by a man’s. I recovered her story & tracked all her known work here: tinyurl.com/2ktztx2e

09.03.2025 13:00 👍 1388 🔁 453 💬 16 📌 19
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Oh happy day! “After I had discovered true intervals of the orbits by ceaseless labour over a very long time and with the help of Brahe’s observations, finally the true proportion of the orbits showed itself to …

Johannes Kepler first discovered his third law on 8 March 1618 #histsci
thonyc.wordpress.com/2010/03/08/o...

08.03.2026 06:58 👍 29 🔁 16 💬 0 📌 0
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8 women in Scotland who shaped the history of science | National Museums Scotland Many of the scientific endeavours featured in our collections are the work of women with a connection to Scotland. Below, we've highlighted key contributio

Here's one we made earlier for #IWD - 8 women in Scotland who shaped #histSTM
www.nms.ac.uk/discover-cat...

08.03.2026 10:33 👍 24 🔁 17 💬 0 📌 0
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08.03.2026 10:32 👍 45 🔁 17 💬 6 📌 0
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The quest to understand where atoms end Atomic size measurements like van der Waals and covalent radii are central to chemistry, but are they grounded in reality?

From Dalton's wooden spheres to quantum clouds of probability, the concept of atomic size has evolved dramatically. Phil Ball probes the questions that remain unanswered.

08.03.2026 10:01 👍 9 🔁 3 💬 0 📌 3

I did this over on the other place so I've lost it now, but:

dogshit = bad, terrible
bullshit = lies
horseshit = lies but not so malicious
batshit, apeshit = crazy
chickenshit = coward
flyshit - very small

what other types of specific animal shit are there?

08.03.2026 09:53 👍 6 🔁 2 💬 2 📌 0
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Oh happy day! “After I had discovered true intervals of the orbits by ceaseless labour over a very long time and with the help of Brahe’s observations, finally the true proportion of the orbits showed itself to …

Johannes Kepler first discovered his third law on 8 March 1618 #histsci
thonyc.wordpress.com/2010/03/08/o...

08.03.2026 06:58 👍 29 🔁 16 💬 0 📌 0
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Watch in the shape of a cross, late 17th century (Rijksmuseum)

07.03.2026 20:47 👍 10 🔁 4 💬 0 📌 0
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"Many biographies use a singular life as a kaleidoscope to refract a historical period and view its patterns. Cobb’s biography does something different."

Angela Creager reviews Matthew Cobb’s new book: https://lareviewofbooks.org/article/francis-crick-james-watson-double-helix-dna-biography

07.03.2026 12:34 👍 7 🔁 5 💬 0 📌 0
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Ruben Ray Martinez: Footage shows US citizen shot by ICE agent in Texas traffic stop The Department of Homeland Security did not disclose Martinez was shot by one of its agents until almost a year later.

Newly released footage shows an ICE agent killing Rubin Ray Martinez, 23, in his car in Texas.

"He was shot at point-blank range through his side window by an ICE agent who was in no danger."
www.bbc.com/news/article...

07.03.2026 14:18 👍 6087 🔁 3840 💬 0 📌 263

I was at London Zoo years ago and the vicuna made a noise at me. Feeling clever, I repeated it back; it said the same thing, so I said again. Then it spat me right in the eyes.* It was saying “You lookin’ at me?” and I was unwittingly saying that back.

* An unnoticed sign said “this animal spits”.

07.03.2026 15:04 👍 22 🔁 3 💬 1 📌 1
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07.03.2026 14:18 👍 30468 🔁 7413 💬 493 📌 329

And it really was good fun!

07.03.2026 10:41 👍 14 🔁 5 💬 0 📌 0

Join our "Ships & Seafaring 1500–1800" series Monday 9 March, 1pm CET, for a book presentation by @csschmitt.bsky.social (Cornell): "The Predatory Sea: Human Trafficking and Captivity in the Seventeenth-Century Caribbean". Register here: www.eventbrite.com/e/ships-seaf...
#earlymodern #History

07.03.2026 13:12 👍 32 🔁 18 💬 1 📌 5
The media outlet
GB News
It was reported this week that 
the channel, which employs several Reform UK politicians – (including Nigel Farage to the tune of around £400,000 a year) lost
in the year to May 2025
Its total losses since launch in 2021 now stand at 
£131m

The media outlet GB News It was reported this week that the channel, which employs several Reform UK politicians – (including Nigel Farage to the tune of around £400,000 a year) lost in the year to May 2025 Its total losses since launch in 2021 now stand at £131m

What is the price of influence on the right?

The media

'GB News is a vast, monstrous spectre looming over British politics – a relentless content machine that has executed Steve Bannon’s ploy of “flooding the zone with shit”.' says Sam Bright

(2/6)

07.03.2026 12:53 👍 33 🔁 15 💬 1 📌 3
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The Myth That Wind Farms Are a Guillotine for Birds Is Being Debunked by Hard Data The harm caused by wind turbines isn't nearly as bad as you think.

www.zmescience.com/feature-post...

07.03.2026 12:36 👍 19 🔁 10 💬 2 📌 0
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Bodycam video contradicts ICE claims in fatal shooting of U.S. citizen Ruben Ray Martinez in Texas Video of last year's fatal shooting of Ruben Ray Martinez obtained by CBS News appears to contradict claims that Martinez was shot by an ICE agent because he "accelerated" and "intentionally ran over"...

DHS claimed "an ICE agent had fired 'defensive shots' into Martinez's vehicle after Martinez 'intentionally ran over' another agent."

But body cam video now "shows that Martinez's vehicle, a blue Ford Fusion, was stationary or going at a very low rate of speed when he was fatally shot."

07.03.2026 00:59 👍 5302 🔁 2418 💬 97 📌 153