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Reposted by Michal J A Paszkiewicz

Thony Christie @rmathematicus.bsky.social · 01/10/2026

Book Review: thonyc.wordpress.com/2026/10/01/v...

Michal J A Paszkiewicz @michalyoudoing.bsky.social · 30/09/2026

If you were in charge of the Roman Inquisition in 1616, who would you put in an "independent panel" of astronomers to decide the status of Heliocentrism? 🧪🏛️📜🏰🔭

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Reposted by Michal J A Paszkiewicz

Kathleen Crowther @sacrobosco.bsky.social · 05/03/2026

Excited to share my latest project, due out early next year: The Book Everyone Read | Princeton University Press press.princeton.edu/books/hardco...

press.princeton.edu

The Book Everyone Read

How an all-but-forgotten medieval astronomy book ushered in the modern age of science

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Michal J A Paszkiewicz @michalyoudoing.bsky.social · 19/08/2026

Embroidered cover designed for Luis Miguel Carolino's "Geo-Heliocentric Controversies". It was pretty fun making it, and it doubles up as a nice diagram of the Tychonic model for the blind.

An embroidered book cover featuring the Tychonic model, where the Sun orbits the Earth, and the other planets orbit the Sun.

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Michal J A Paszkiewicz @michalyoudoing.bsky.social · 12/08/2026

The clouds gave me a rare chance to take a nofilter phone photo. Telescope images coming later

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Reposted by Michal J A Paszkiewicz

Michal J A Paszkiewicz @michalyoudoing.bsky.social · 31/07/2026

Interview for the Bedrock magazine: "How to be smitten by science" www.youtube.com/watch?v=tM0Z...

youtube.com

How to be Smitten by Science, with Michał Paszkiewicz | Bedrock Interview 005

YouTube video by Bedrock Magazine

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Reposted by Michal J A Paszkiewicz

Michal J A Paszkiewicz @michalyoudoing.bsky.social · 11/12/2024

Riccioli's Almagestum Novum (1651) wasn't just the most comprehensive Astronomy Textbook ever. It also linked House Grimaldi to French Royal ancestors, pushing the diplomacy that would ally Monaco with France and protect them from Italian Unification. www.amazon.com/Almagestum-N...

amazon.com

Almagestum Novum: History of Astronomy

Buy Almagestum Novum: History of Astronomy on Amazon.com ✓ FREE SHIPPING on qualified orders

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Reposted by Michal J A Paszkiewicz

Astronomer Royal for Scotland | Catherine Heymans @astroroyalscot.bsky.social · 07/07/2026

If this leaked info is to be trusted, we'll soon be adding #SaveJodrellBank to #SaveUKAstronomy🔭. I fear this is UKRI "rolling the pitch" to prepare us for the official announcement of unpleasant news😔 There is still a little glimmer hope though: A DSIT spokesperson said: "This is speculation".

A gorgeous sunset image of the iconic Lovell radio telescope at Jodrell Bank Observatory.

The prioritisation decisions approved by Dsit are also likely to include the scaling back of several UK-based research facilities supported by STFC, RPN understands.

These include e-Merlin, an array of seven radio telescopes, of which the Lovell is one, headquartered at the Jodrell Bank Observatory in Cheshire.

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Michal J A Paszkiewicz @michalyoudoing.bsky.social · 04/07/2026

Replacing a cloth-bound hardback cover - full process

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Michal J A Paszkiewicz @michalyoudoing.bsky.social · 01/06/2026

I don't like working with PDFs, so this is what happened when I was sent a pdf review copy of a 1000+ page book.

5 Bookcloth quarter bound hardback books with map paper covering them

Endpapers on hand-bound hardback books, featuring Tycho, Kepler, Galileo, Regiomontanus and Copernicus

Covers of 5 Bookcloth quarter bound hardback books with map paper covering them

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Michal J A Paszkiewicz @michalyoudoing.bsky.social · 12/05/2026

My second attempt at stitching a book together. Trying out new ideas.

Book binding stitching signatures together

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Michal J A Paszkiewicz @michalyoudoing.bsky.social · 08/05/2026

An HR system integrating with a product called "Galileo" feels like a red flag.

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Reposted by Michal J A Paszkiewicz

Michal J A Paszkiewicz @michalyoudoing.bsky.social · 15/04/2026

JD Vance has made it clear that he is aware of the Catholic criteria for Just War that the United States are not meeting in their military action. Rather embarrassing.

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Michal J A Paszkiewicz @michalyoudoing.bsky.social · 15/04/2026

JD Vance has made it clear that he is aware of the Catholic criteria for Just War that the United States are not meeting in their military action. Rather embarrassing.

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Michal J A Paszkiewicz @michalyoudoing.bsky.social · 09/04/2026

Galileo never saw the far side of the moon. However, William Gilbert observed a part of the sides of the moon before 1603 (due to lunar libration), and Hevelius was the first to map lunar libration with a telescope in 1647.

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Reposted by Michal J A Paszkiewicz

Ben Gross @bhgross144.bsky.social · 06/04/2026

After sharing some early Moon maps (Riccioli, Cassini, etc) during a recent rare book presentation, I really appreciate this screenshot of the Lunar Targeting Package, which helps the #ArtemisII team determine what features they are observing. More info via #NASA: science.nasa.gov/resource/art... 🌔

Screenshot from the Artemis II livestream showing the various targets that the astronauts will be photographing and observing during their lunar flyby.

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Michal J A Paszkiewicz @michalyoudoing.bsky.social · 02/04/2026

Galileo forbade one of his students from publishing a letter the student wrote. He outlines this in his 1604 "Difesa contro alle calunnie et imposture di Baldessar Capra" [trans De Angelis, Galileo and the 1604 Supernova pp. 61-69] ... 🧪🏛️🔬🔭 #HistSci

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Reposted by Michal J A Paszkiewicz

Michal J A Paszkiewicz @michalyoudoing.bsky.social · 11/12/2024

A 🧵of Galileo's arguments for Heliocentrism,& why he couldn't prove heliocentrism in his time: 1. Tides Galileo was convinced of Heliocentrism by his tide model. Galileo's Dialogo was in fact a modification and extension of his 1616 Dialogue on the Ebb and Flow of the Tides. 🧵1 🧪🏛️⌛🔭📜

A screenshot of the first paragraph of Galileo's Discorso Del Flusso E Reflusso Del Mare, translated to English with the Scriptorium AI tool.

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Reposted by Michal J A Paszkiewicz

Maria J Pérez Cuervo @mjpcuervo.com · 22/03/2026

Sunday reading with the latest by @drfrancisyoung.bsky.social (aka @helleborezine.bsky.social’s fairy expert)

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Reposted by Michal J A Paszkiewicz

Danny Robb @inverting-vision.bsky.social · 05/03/2026

In 1961, Eugene Shoemaker used Earth analogs to help distinguish between impact and volcanic craters on the moon: "Many craters on the moon are surrounded by a system of rays resembling the ejecta patterns around nuclear-and high-explosive craters" He used Teapot ESS and Copernicus to illustrate:

An illustration with a caption reading "Fig. 1. Ejection pattern at Teapot ESS nuclear explosion crater." The illustration shows a roughly circular crater rim, surrounded by dots and lines, showing rays extending outward from the center.

A photograph of a lunar crater labeled "Fig. 2. The region of Copernicus( photograph by F.G. Pease, Mount Wilson Observatory). The rim of Copernicus is visible in the center, and bright rays are clearly visible, especially against dark backgrounds, extending outward from the rim.

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Michal J A Paszkiewicz @michalyoudoing.bsky.social · 26/02/2026

The Hollow Crown: Richard II features a man looking out to sea with a telescope. Not only were there no telescopes at the time of Richard II, there were still no telescopes when Shakespeare published Richard II in 1597.

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Michal J A Paszkiewicz @michalyoudoing.bsky.social · 21/02/2026

Why did Riccioli put Argus in his Frontispiece? Why has Argus got a telescope? On studying the Odyssey with a reading group, I think this has uncovered an additional hidden symbolism I had previously missed. ...

The Greek mythological giant, Argus, with many eyes. He uses an eye on his knee to look up through a telescope.

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Michal J A Paszkiewicz @michalyoudoing.bsky.social · 20/02/2026

The knowledge you already have can sometimes hold you back. The assumptions you choose to challenge makes the difference between a wild goose chase and groundbreaking discoveries. A great example is in Galileo's 1604 notes on the supernova. ...

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Michal J A Paszkiewicz @michalyoudoing.bsky.social · 19/02/2026

My wife and I spent a long time trying to figure out what this strange kind of bird with a crazy hairstyle was. Then it hopped down a branch and it turned out to be a crow with branches in its mouth.

Shadow of a crow, branches in mouth against trees and branches

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Michal J A Paszkiewicz @michalyoudoing.bsky.social · 17/02/2026

There are 33 craters on the moon named after Jesuit priests, and more named after Catholic priests in general. Photo taken with LadleLens 3000

A photo that looks like the craters of the moon, but actually it's a pancake!

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Reposted by Michal J A Paszkiewicz

Thony Christie @rmathematicus.bsky.social · 15/02/2026

Galileo Galilei was born 15 February 1568, it's more than 15 years since my infamous deflation of his bloated reputation #histsci thonyc.wordpress.com/2010/06/02/e...

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Michal J A Paszkiewicz @michalyoudoing.bsky.social · 05/02/2026

******ALERT******* FUN SPOILING POST 1. Heliocentrism wasn't "Godless". Rather, the problem found with heliocentrism in 1616 was that Galileo had been reinterpreting scripture based on unproved claims. The Augustinian tradition allowed reinterpretation with proven science, which this was not. ...

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Michal J A Paszkiewicz @michalyoudoing.bsky.social · 04/02/2026

I trained a speech-to-text model this week that shows signs of dyslexia. I guess the cause is a slight bias towards a lower Character Error Rate (LER) over a lower Word Error Rate (WER).

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Reposted by Michal J A Paszkiewicz

Michal J A Paszkiewicz @michalyoudoing.bsky.social · 31/01/2026

Vibe coded a tool for helping me explain astronomical concepts today sphaera-armillaris.vercel.app The real trick is to know how to break the process down into chunks small enough to be manageable for an LLM.

A globe under a celestial globe, with planets on armillaries

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Michal J A Paszkiewicz @michalyoudoing.bsky.social · 31/01/2026

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Michal J A Paszkiewicz @michalyoudoing.bsky.social · 26/12/2025

Another Gnostalgia episode, discussing the Stars, cosmology, and our resulting worldviews. youtu.be/VG5b6b-lTfM?...

youtu.be

Episode 31: On The Stars With Michal Paszkiewicz

YouTube video by The Gnostalgia Podcast

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Reposted by Michal J A Paszkiewicz

Laura Cleaver @laurajcleaver.bsky.social · 15/12/2025

I know no-one wants to think about next term right now, but please remind students to book their places on the Latin palaeography online short courses at beginner or intermediate level taking place in February 👇 #MedievalSky 📖🧑‍💻👩‍💻👨🏽‍💻👩🏻‍💻🧑🏿‍💻🧑‍💻 📚 ies.sas.ac.uk/news-events/...

ies.sas.ac.uk

Introduction to Latin Palaeography

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Michal J A Paszkiewicz @michalyoudoing.bsky.social · 15/12/2025

Do I have any astronomy/history women followers who would be interested in volunteering their voice for two minor lines as the Egyptian goddess Sopdet in an animation?

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Michal J A Paszkiewicz @michalyoudoing.bsky.social · 01/12/2025

"It is no exaggeration to say that astronomy has existed as an exact science for more than five millenia. Throughout all of that time it has touched on matters of deep human concern." - John North, Cosmos

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Michal J A Paszkiewicz @michalyoudoing.bsky.social · 11/10/2025

Who actually dropped balls from towers? Who dropped them best?

A list of experiments purportedly perforned with dropping balls from towers. It is unlikely Galileo ever dropped balls from a tower.

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Reposted by Michal J A Paszkiewicz

Michal J A Paszkiewicz @michalyoudoing.bsky.social · 30/09/2025

Can anyone recommend me a good, accurate, scholarly, book on the history of telephones?

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Michal J A Paszkiewicz @michalyoudoing.bsky.social · 30/09/2025

Can anyone recommend me a good, accurate, scholarly, book on the history of telephones?

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Michal J A Paszkiewicz @michalyoudoing.bsky.social · 28/09/2025

No Galileo did not prove heliocentrism. He didn't even claim he had proved it. The 1st empirical evidence of Earth's motion was Bradley aberration, published 1728. The myth that Galileo had proved it was started by Voltaire in 1734 in Letter 14 of Philosophical Letters. bsky.app/profile/mich...

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Rebekah Higgitt @rhiggitt.bsky.social · 19/08/2025

#histsci 📜

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Reposted by Michal J A Paszkiewicz

Michal J A Paszkiewicz @michalyoudoing.bsky.social · 19/06/2025

I had a great time talking with Brian Scarffe and Sebastian Morello about astronomy, astrology, Shakespeare, Freud and your mother, and other stuff at the Gnostalgia Podcast. youtu.be/qK68-oiGAW0

youtu.be

Astrology and the Renaissance with Michal Paszkiewicz

YouTube video by The Gnostalgia Podcast

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Michal J A Paszkiewicz @michalyoudoing.bsky.social · 22/06/2025

Spundle Ermine, from caterpillar to moth. Super easy to keep, if you have infinite access to spindle trees.

Spindle Ermine moth caterpillar. It is unusual in that it spins a thick web that can cover whole trees

Spindle Ermine moth coccoon. The caterpillar builds a thick web, before building its small coccoon. I really like the yellow/black mix.

The spindle ermine moth comes out in its dalmation glory! Don't show your pics to your friend Cruella!

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Michal J A Paszkiewicz @michalyoudoing.bsky.social · 19/06/2025

I would urge everyone to write to their MPs to vote against Kim Leadbeater's Assisted Suicide bill. The vote will occur tomorrow. ...

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Michal J A Paszkiewicz @michalyoudoing.bsky.social · 19/06/2025

I had a great time talking with Brian Scarffe and Sebastian Morello about astronomy, astrology, Shakespeare, Freud and your mother, and other stuff at the Gnostalgia Podcast. youtu.be/qK68-oiGAW0

youtu.be

Astrology and the Renaissance with Michal Paszkiewicz

YouTube video by The Gnostalgia Podcast

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Reposted by Michal J A Paszkiewicz

Michal J A Paszkiewicz @michalyoudoing.bsky.social · 06/06/2025

🧵0/5 Johannes Kepler had the best arguments for Heliocentrism in his time, and continued to be the strongest advocate pretty much until Newton. This is despite predating Galileo. Here is a thread explaining Kepler's arguments as presented in Astronomia Nova (1609):

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