Help! Someone will know; this is a Henry Moyes (of the Lunar Society), painted in 1792 by John Russell. What is he holding? Moyes was blind, so I'm guessing it is not optical, and I suspect it isn't a measuring cylinder. Genuinely would like to know. Thanks.

Each week, to warm up my students, I get them to do a visual analysis excecise on an image that will lead us into the theme, so this week for the material culture of medical practice this is my image of choice:

Astrolabe, plus pillar dial, armillary sphere and quadrant. Amazing! #mathematicalanimals

Amazing! Makes me think of the knife with an astronomical compendium in the handle at the BM: britishmuseum.org/collection/obj…

The #ToolsofKnowledge AHRC project is hiring a research assistant (12 months, 80% FTE) working with the Cambridge HPS/ Whipple Museum team. Interested in #histSTM, the scientific instrument trade 1550-1914, #collections data & #digitalhumanities? jobs.cam.ac.uk/job/28981/ #jobfairy

Come join Arts and Humanities Research Council #ToolsofKnowledge! We are looking for a Research Assistant (80% FTE, 12 months Cambridge HPS) for our project on modelling the history and communities of the scientific instrument trade jobs.cam.ac.uk/job/28981/. Deadline for applications 19 April

Oh hi there, would you be interested in reading a number 1 bestseller* about time, well let me just pop this here thanks *in History of Engineering & Technology amazon.co.uk/About-Time-His…

Gearing up for tonight's Medal Lecture with STS UCL's @simon_werrett

The history of science needs more histories of boxes and containers, says @simon_werrett

Today's Fireside Chat by Yuval Goren on the Brandeis Microscope and copying from Zeiss will soon be available on the website member area. Join today for exclusive access to online events and the Bulletin archive. scientificinstrumentsociety.org

We are forty years old! The Society marked its Ruby Jubilee with a grand event at the #Royalautomobile Club in #London Here is our 2023 medal lecturer Bert Degenaar, who was generously introduced by the esteemed historian of #Dutchscience Huib Zuidervaart

The Press is quoting our member James Hyslop that this may be the earliest dated English scientific instrument (1311) Part of a 'Valuable books and manuscripts' (!) sale in December christies.com/lot/lot-646325…

A new exhibition "Sectors and precious mathematical and drawing instruments of the 17th and 18th c" is on now at the #Arithmeum in Bonn, Germany, until 5 May 2024 and should delight those SIS members interested in calculation devices. Catalogues cost €98 arithmeum.uni-bonn.de/en/exhibition/…