(Journée d'études) Pour une histoire du magnétisme animal au xixe siècle. Harmonia Universalis – Du mouvement mesmérien à l’internationale magnétiste histoiresante.blogspot.com/2026/04/pour... #histpsych
The CFA for the international conference on "Technology Ethics in Turbulent Times. Expanding the Moral Agenda for Transformation" is open.
Deadline: 1 June 2026
Conference dates: 4-6 November 2026
Location: Wageningen University, The Netherlands.
More information www.esdit.nl/conference-2...
The Royal Flemish Academy of Belgium for Science and the Arts (KVAB) is hosting a spring lecture series on the repatriation of colonial objects, in collaboration with the AfricaMuseum and the Royal Academy for Overseas Sciences.
More information and registration: kvab.be/nl/activitei...
Five workers installing the BR2-reactor vessel, characterized by its unique diabolo or 'hourglass' shape.
Happy to share my article on the Belgian Test Reactor (BR2): "Ailing reactors and their isotopes: radiopharmacy and nuclear research in Belgium (1990–2020)" - somewhat of a biography of the Belgian Test Reactor (BR2) www.cambridge.org/core/journal...
OPEN ACCESS
Projecting #Knowledge
The #OpticalLantern and #ScienceCommunication, 1880s–1940s
Edited by Dulce Da Rocha Gonçalves, Nico de Klerk, Frank Kessler, and Jamilla Notebaard
Info: bit.ly/3QjvRP3
#HistSci #ScienceSky #HistoryOfScience #Science #OA
Three day international conference at UMONS on 'Ontological Pluralism in Medicine and the Humanities'!
When? June 17–19, 2026
Where? Rosa Parks Building of the University of Mons
More information? Via the link below 👇
bit.ly/4vMDLAT
The Division of History of Science and Technology of the International Union of the History and Philosophy of Science and Technology (DHST/IUHPST) is happy to invite submissions to the 9th DHST Dissertation Prize soon. Exclusively electronic applications open 1 May via the link in comments!
(Call for Abstracts) Objectivity and Subjectivity in Medicine histoiresante.blogspot.com/2026/04/obje... #histmed
✒️De grootste en belangrijkste beroepsorganisatie voor verpleegkundigen in Vlaanderen blaast dit jaar negentig kaarsjes uit. Op Cultuurgeschiedenis.be neemt Luc De Munck je daarom mee doorheen de geschiedenis van de vereniging.
▶️ cultuurgeschiedenis.be/wij-vragen-d...
Jules Bordet passed away 65 years ago last week. Bordet served as the first director of the Pasteur Institute in Belgium. In 1907, he was appointed professor at the ULB. In 1919, he became the first Belgian Nobel Prize winner in science for his work in immunology.
bestor.be/jules-jean-b...
Last October, we organised the second History of Knowledge Conference in Lund. It has now been confirmed that the third conference in this series will be held in Utrecht on 25–27 August 2027.
Read more here: newhistoryofknowledge.com/2026/04/09/t...
As a philosopher and writer, Jean-Jacques Rousseau needs no introduction. But what did he think about science education? This week, Henk van den Belt discusses Rousseau's visions on educating children about science. Read it on the blog: www.shellsandpebbles.com/2026/03/30/r...
🌿🌾 You like gardens? You like history? And games? Then rejoice, because LOBELIUS is here!
Thanks to official partners, Museum Plantin-Moretus and the Meise Botanical Garden, the players can skim through the 1581 Kruydtboeck by Matthias de l´Obel. Can you make the most beautiful early modern garden?
#OpenAccess
𝗖𝗲𝗻𝘁𝗮𝘂𝗿𝘂𝘀
𝗝𝗼𝘂𝗿𝗻𝗮𝗹 𝗼𝗳 𝘁𝗵𝗲 𝗘𝘂𝗿𝗼𝗽𝗲𝗮𝗻 𝗦𝗼𝗰𝗶𝗲𝘁𝘆 𝗳𝗼𝗿 𝘁𝗵𝗲 𝗛𝗶𝘀𝘁𝗼𝗿𝘆 𝗼𝗳 𝗦𝗰𝗶𝗲𝗻𝗰𝗲
Volume 67, Issue 2
Special Issue
𝗞𝗻𝗼𝘄𝗹𝗲𝗱𝗴𝗲 𝗦𝗰𝗿𝗲𝗲𝗻𝘀: 𝗧𝗵𝗲 𝗠𝗮𝗴𝗶𝗰 𝗟𝗮𝗻𝘁𝗲𝗿𝗻, 𝗞𝗻𝗼𝘄𝗹𝗲𝗱𝗴𝗲 𝗠𝗮𝗸𝗶𝗻𝗴 𝗮𝗻𝗱 𝗞𝗻𝗼𝘄𝗹𝗲𝗱𝗴𝗲 𝗖𝗼𝗺𝗺𝘂𝗻𝗶𝗰𝗮𝘁𝗶𝗼𝗻
Info: bit.ly/47wShSG
#HistSci #HistoryOfScience #MagicLantern #OA #Knowledge #ScienceSky
INCSA's call for papers, "Medicine, Museums, and Science Communication in the Nineteenth Century," has a new deadline of 31 March 2026. Join us in #Copenhagen 🧬
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in-csa.com/2026-call-fo...
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Anna Atkins, Spiraea aruncus (Tyrol), 1851–54. Cyanotype, 35.1 x 24.6 cm. Metropolitan Museum of Art, NYC.
Last month marked 110 years since the passing of Isala Van Diest.
Van Diest was a pioneer for women in Belgian science and became the country’s first female physician.
Rediscover her remarkable story on Bestor:
FR: bestor.be/fr/isala-van...
NL: bestor.be/nl/isala-van...
Screenshot of a KU Leuven CLPS event page announcing a Brown Bag Seminar titled "2 + 2 = 4; Therefore, This Argument is Invalid” by Boaz Schuman. Scheduled for March 27, 2026 (1:00–2:00 PM, Europe/Brussels) in room HIW1-01.20, organized by Alejandro Fábregas-Tejeda and Atahan Erbas. Abstract Have a look at the following argument: 2 + 2 = 4 ∴ This argument is invalid. What are we to make of this? The premise is necessarily true, but what about the conclusion? If it is false, then the argument—going from a true premise to a false conclusion—is invalid. But then if it’s invalid, what the conclusion says must be true, in which case the argument is valid! The first version of this paradox—now sometimes called the Paradox of Validity—was put forth in the 14th century by an anonymous logician, now designated Pseudo-Scotus. It has caused chaos ever since. In this seminar, we will look at the original formulation and solution of Pseudo-Scotus, followup attempts by modern logicians to stem the evil tide, and the dialetheic argument that this paradox constitutes a reductio ad absurdum on the classical account of validity.
Have a look at the following argument:
2 + 2 = 4
∴ This argument is invalid.
Are you puzzled by the so-called Paradox of Validity? So are we! Join us today to discuss with Boaz Schuman Pseudo-Scotus’s solution, modern responses, and the dialetheist challenge to classical validity.
#philsky #logic
The Belgian Royal Observatory is celebrating its bicentenary!
Check out their beautiful new website 200year.observatory.be/nl and discover all kinds of interesting activities, including a lecture series at the Belgian Royal Academy.
Read more about Adolphe Quetelet on Bestor: bit.ly/4szjVqv
Naar aanleiding van de lancering van de nieuwe Bestorwebsite mochten wij voor EOS magazine een artikel schrijven over wetenschapsgeschiedenis in België en een beetje Nederland.
Toekomst, heden en verleden van de discipline komen aan bod!
Lees het volledige artikel hier: bit.ly/4bG1uta
Last call for the biennial Jan Gillis Prize (deadline 31/03). The prize awards an important and original work related to the history of scientific thought.
More information on the website of the KVAB: kvab.be/node/163/18_
Article header from the journal Inquiry (2025, Vol. 68, No. 7), titled “Existence hedges, neutral free logic and truth” by Jan Heylen (KU Leuven). ABSTRACT Semantic externalism in the style of McDowell and Evans faces a puzzle formulated by Pryor: to explain that a sentence such as ‘Jack exists’ is only a posteriori knowable, despite being logically entailed by the seemingly logical truth ‘Jack is self-identical’, and hence being itself a logical truth and therefore a priori knowable. Free logics can dissolve the puzzle. Moreover, Pryor has argued that the existentially hedged ‘If Jack exists, then Jack is self-identical’, when properly formalised, is a logical truth in a system of neutral free logic and therefore a priori knowable, while it does not entail that Jack exists. The latter holds also for negative free logic. In response, Yeakel has argued that on any system of neutral free logic existence hedges will either entail some unwanted existence claims or they will not entail some wanted existence claims. The dilemma also holds for any non-positive free logic. It will be shown that the extension of one of the systems of neutral free logic with a truth operator escapes Yeakel's dilemma, whereas no other non-positive free logic when extended with the truth operator does the same (or it breaks quantifier exchangeability).
Are you interested in semantic externalism and existence hedges? Check out Jan Heylen's recent article in Inquiry, which uses free logics and truth operators to tackle some well-known puzzles and dilemmas about knowledge 👇📃
www.tandfonline.com/doi/abs/10.1...
#philsky #logic #epistemology
Yesterday marked 70 years since George Sarton passed away in Boston. The significance of this Belgian pioneer in the history of science can hardly be overstated.
Discover his remarkable life story—from a kitchen in Ghent to Harvard—on Bestor: bestor.be/george-alfre...
We presenteren jullie vandaag met veel plezier ons volledig vernieuwd platform: Bestor 2.0!
Veel leesplezier op bestor.be/nl.
C’est avec grand plaisir que nous vous présentons une plateforme entièrement mise à jour: Bestor 2.0 !
Découvrez notre plateforme renouvelée ici: bestor.be/fr.
Call for Abstracts
2nd International Conference
The History of the Philosophy of Technology
October 26-28, 2026
Maastricht University
Theme: national and regional traditions
Abstracts by 25 May 2026
fasos-research.nl/history-of-p...
#philtech #hopot #hopos #histtech
Holding back for future gain — @sebastianfelten.bsky.social on how archives and bureaucracy aided “sustainable” investment strategies in Amsterdam and Saxony
✍️ From our own JHoK Blog archive (2021)
blog.journalhistoryknowledge.org/2021/09/15/e...
Scientific discoveries are often presented as miraculous events, but are they? Annette Lykknes shows us the need for historical research in tales of scientific discovery, using examples from chemistry. Read it here: www.shellsandpebbles.com/2026/03/17/u...
Tomorrow, the Royal Flemish Academy of Belgium (KVAB) is hosting a very interesting lecture on the donation of the library of the then world-famous scientist Johannes Müller (1801–1858), a professor of anatomy and physiology in Berlin, to the Royal Library. More information here: bit.ly/47PcYJz
Vacancy: assistant managing editor 💼
JHoK is looking for an assistant editor (0.1 fte) to start on 1 June 2026 for 6 months. Employment can be prolonged following positive evaluation and continued registration as a student. More information at: journalhistoryknowledge.org/announcement...
