Guy Sechrist, PhD's Avatar

Guy Sechrist, PhD

@guysechrist.bsky.social

Early-modern history of science | Commerce and Science -Practical Maths -Natural History @sis-instrument-soc.bsky.social Uni. of Tennessee | PhD Cambridge HPS

5,334 Followers  |  488 Following  |  490 Posts  |  Joined: 06.09.2023  |  2.0976

Latest posts by guysechrist.bsky.social on Bluesky

Post image

Yes! I am particularly fond of integrating wonderful port images, like this one of Canton during the Qing Dynasty. The lecture is on Chinese Dynastic Trajectories and Trade.

03.02.2026 02:59 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

This semester, I am teaching four classes (three preps). Two of the courses are brand new. So, lecture prep can be tedious, especially prepping slides. This said, I truly love it when I finish a deck and it turns out to be aesthetically beautiful !

02.02.2026 23:22 β€” πŸ‘ 2    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0
A Treatise on the Virtues and Efficacy of a Crust of Bread: Eat Early in a Morning Fasting ... (1756)
By Nicholas Robinson

A Treatise on the Virtues and Efficacy of a Crust of Bread: Eat Early in a Morning Fasting ... (1756) By Nicholas Robinson

No shortage of practical guide books in the 18th century...
#history #food #medicine #disease #anatomy

02.02.2026 16:41 β€” πŸ‘ 19    πŸ” 3    πŸ’¬ 3    πŸ“Œ 0
Preview
IN BLOOM EXHIBITION The stories behind some of Britain’s most beloved blooms – from roses and tulips to camellias and peonies.

Opening March 19 at the Ashmolean Museum -

In Bloom
How Plants Changed Our World
19 Mar – 16 Aug 2026
www.ashmolean.org/exhibition/i...

30.01.2026 12:45 β€” πŸ‘ 5    πŸ” 2    πŸ’¬ 0    πŸ“Œ 0

Oh snap! Sorry for spoilers! But yes, it is worth the watch!

29.01.2026 00:29 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 1    πŸ“Œ 1

I thought the same thing whilst watching it. I also found it lame how the one judge wouldn't make a decision and would instead put the chefs on hold. The ANXIETY!

29.01.2026 00:27 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0
Preview
What can histories of Empire teach us about modern environmental efforts? Professor Sadiah Qureshi, author of 'Vanished: An Unnatural History of Extinction' (2025), explores the current biodiversity crisis by examining it through the historical lens of Empire.

I wrote something for the British Academy blog and then completely forgot to post a link. This draws on a case study from my book Vanished about the foundation of national parks. If you want to know more, there’s a rather large discount on some sites. 🐯

www.thebritishacademy.ac.uk/blog/what-ca...

27.01.2026 21:09 β€” πŸ‘ 31    πŸ” 16    πŸ’¬ 1    πŸ“Œ 0
Post image

We draw your attention to the Oceanic and Maritime History workshop co-convened by Aristide Chryssoulis and @joaomoreiradasilva.bsky.social (Centre Prize Student 2024-25 and Student Mentor 2025-26).

27.01.2026 20:10 β€” πŸ‘ 8    πŸ” 5    πŸ’¬ 0    πŸ“Œ 1

Feel free to take a peek at some of the Bulletin's open-access articles!

24.01.2026 23:25 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

A wonderful tool for historians of science and technology!

24.01.2026 23:25 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
Post image

100 followers in under 24 hours!

Speaking of time…

Society members can access the Bulletin archive, featuring gems like Lajos Bartha’s 1988 piece, β€œOld Time Measuring, Astronomical and Surveying Instruments in the Museums of Hungary.”

scientificinstrumentsociety.org/SISTopicsInd...

24.01.2026 23:09 β€” πŸ‘ 3    πŸ” 1    πŸ’¬ 0    πŸ“Œ 0

Can you tell the difference between a hydrometer & a hygrometer? A Leyden jar & a Crookes tube? An armillary sphere & an equatorial ring?

Then you should follow @sis-instrument-soc.bsky.social for updates concerning the history of scientific instruments!

#histSTM #histsci #histtech #FollowFriday πŸ—ƒοΈ

23.01.2026 19:34 β€” πŸ‘ 22    πŸ” 12    πŸ’¬ 1    πŸ“Œ 0
Blog – Scientific Instrument Society

If you're new here; check out our wonderful blogs!

We offer a wide variety of all things scientific instruments from volvelles used in alchemy, to instruments in Ottoman education!

We also accept contributions!

scientificinstrumentsociety.org/blog/

23.01.2026 21:57 β€” πŸ‘ 3    πŸ” 1    πŸ’¬ 0    πŸ“Œ 0

Hello Everyone! I am in the process of getting our social media up and running here on BlueSky for the Scientific Instrument Society. If you like instruments, then you'll love SIS! Please follow and stay updated!

23.01.2026 19:33 β€” πŸ‘ 12    πŸ” 4    πŸ’¬ 1    πŸ“Œ 0
Post image

View our recent Bulletin, no. 167!

We’ve got a whole range of open-access articles availableβ€”including this gem by Anthony Turner:

β€œOn the Origin and Naming of the Planetary Machine Known as an β€˜Orrery’.”

Well worth a read.

scientificinstrumentsociety.org/BulletinArti...

23.01.2026 19:25 β€” πŸ‘ 2    πŸ” 1    πŸ’¬ 0    πŸ“Œ 0

Week one of term is wrapping up here nicely on a Friday. It feels great to be back on campus - but I must say, I am a little tired! I flew in a week ago - so perhaps I am still feeling the jet lag.

23.01.2026 15:11 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
Post image

Holy Roman Emperor Rudolph II lying in state. He died #otd 20 Jan 1612 in Prague #Praha (British Museum)

20.01.2026 22:30 β€” πŸ‘ 2    πŸ” 1    πŸ’¬ 0    πŸ“Œ 0
Preview
CALL for PAPERS for The Zoological Society of London (ZSL) at 200: Science, Society, and the Natural World, 1-3 July 2026 - Society for the History of Natural History Call for papers This three-day international meeting, held in SHNH’s 90th year, will mark the bicentenary of the Zoological Society of London (ZSL) and delve into its history and impact on our knowled...

CFP: The Zoological Society of London (ZSL) at 200: Science, Society, and the Natural World, 1-3 July 2026

shnh.org.uk/all-events/c...

#zoo #envhist #animalhistory

20.01.2026 15:28 β€” πŸ‘ 17    πŸ” 13    πŸ’¬ 2    πŸ“Œ 0
Preview
Medical Humanities International PhD Summer School 2026 The Medical Humanities International Summer School is open for applications from PhD students.

For any PhD students working in Medical Humanities, check out the Medical Humanities summer school from @durhamimh.bsky.social medhumsplatform.org/medical-huma...

20.01.2026 01:41 β€” πŸ‘ 15    πŸ” 13    πŸ’¬ 0    πŸ“Œ 0
Post image

Join us this Friday lunchtime for an online talk with @s-pooley.bsky.social exploring the remarkable history of the okapi: a rainforest giraffid that became a symbol of scientific discovery, colonial power, and modern conservation challenges.

buff.ly/9Xr2iCf

Fri 23 January | 12:30pm to 1:30pm

19.01.2026 17:10 β€” πŸ‘ 11    πŸ” 6    πŸ’¬ 2    πŸ“Œ 3
Post image

We are officially live for the Spring 2026 term at Tennessee! I am especially excited to teach UT's first ever ST(H)S course in the wonderful Cowan Cottage!

18.01.2026 19:07 β€” πŸ‘ 2    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
The first page of Fragments of Ancient English Shipwrighty, showing Baker’s secretary hand and the unfinished drawings of Noah’s Ark and of shipbuilders. Reproduced by permission of the Pepys Library, Cambridge.

The first page of Fragments of Ancient English Shipwrighty, showing Baker’s secretary hand and the unfinished drawings of Noah’s Ark and of shipbuilders. Reproduced by permission of the Pepys Library, Cambridge.

Unfolding the multiple lives of a shipbuilding manuscript: Our first Artefact of the Month in 2026 is known as 'Fragments of Ancient English Shipwrighty' and reveals the interactions between mathematics and practice in the Scientific Revolution:

uhh.de/csmc-aom-35

15.01.2026 15:30 β€” πŸ‘ 10    πŸ” 3    πŸ’¬ 0    πŸ“Œ 0
Preview
Dr. Ann Blair - How Renaissance Scholars and Printers Decided on the Size of Books YouTube video by Harry Ransom Center

here: www.youtube.com/live/u16QHaI...

15.01.2026 21:50 β€” πŸ‘ 4    πŸ” 2    πŸ’¬ 1    πŸ“Œ 1
Pforzheimer Lecture
How Renaissance Scholars and Printers Decided on the Size of Books w/Dr. Ann Blair

Wednesday, January 21 at 6 p.m.

Pforzheimer Lecture How Renaissance Scholars and Printers Decided on the Size of Books w/Dr. Ann Blair Wednesday, January 21 at 6 p.m.

The most exciting #BookHistory talk of the season is coming up next week!

Join us @ransomcenter.bsky.social or online as Ann Blair delivers the 2026 Pforzheimer lecture. This talk has Erasmus, Gessner, and volumes both large &small!

Learn more: www.eventbrite.com/e/pforzheime...

#booksky πŸ—ƒοΈπŸ“œπŸ“š

15.01.2026 21:14 β€” πŸ‘ 50    πŸ” 19    πŸ’¬ 2    πŸ“Œ 2

That’s unreal.

14.01.2026 16:41 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

I messed up my left and right - but that is due to the loading of the images incorrectly. apologies.

14.01.2026 11:11 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

thanks for sharing @csmbr-pisa.bsky.social !

14.01.2026 11:10 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

Ok, I am done - off this rabbit trail. It was fun and I learned more about acoustic machines and their relationship to the practical aspects of shell collection in the 17th century.

14.01.2026 11:06 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0
Post image Post image

In the museum, shells became frozen machines; in the books, machines became living shells. Both demonstrated how nature and art converged through spiral motion, proportional growth, and gradual amplification. Kircher’s instruments thus did not merely imitate nature, they operationalized it.

14.01.2026 11:04 β€” πŸ‘ 4    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
Post image

This logic ultimately traced back to Archimedes’ water screw: a machine that raised heavy matter through rotation and curvature rather than brute strength. Kircher explicitly treats the cochlea as a universal machine, equally applicable to hydraulics, mechanics, and acoustics. Here in his Musaeum:

14.01.2026 11:02 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0

@guysechrist is following 20 prominent accounts