David Underdown's Avatar

David Underdown

@davidunderdown

Data Engineer at The National Archives. Digital Preservation/Digital Archiving. Also cycling, bellringing, photography, choral singing, promming and much more

1,799
Followers
1,999
Following
1,346
Posts
30.09.2023
Joined
Posts Following

Latest posts by David Underdown @davidunderdown

Ooh, this looks fun.

10.03.2026 12:48 πŸ‘ 27 πŸ” 9 πŸ’¬ 0 πŸ“Œ 0
β€œSome Days, My Work Is Unbearable”: The Impact of Chronic Illness and Disability on Recruitment and Retention for Workers in American Archival Repositories and Special Collections Libraries | Griffin ... β€œSome Days, My Work Is Unbearable”: The Impact of Chronic Illness and Disability on Recruitment and Retention for Workers in American Archival Repositories and Special Collections Libraries

If you read our research re: marginalisation in the UK archives sector a few years ago, you should definitely check out this brilliant work by Melanie Griffin (2025), looking at recruitment & retention of disabled archive workers in USA rbm.acrl.org/index.php/rb...

10.03.2026 12:53 πŸ‘ 3 πŸ” 4 πŸ’¬ 0 πŸ“Œ 0
A record keeper looks at a large drawing in the open draw of a repository. The drawing contains illustrations of steam trains and horses and carriages.

A record keeper looks at a large drawing in the open draw of a repository. The drawing contains illustrations of steam trains and horses and carriages.

Here’s our weekly slate of upcoming events with spaces still available!

These events cover our open grant schemes, heritage science, community engagement, carbon literacy and more: www.nationalarchives.gov.uk/archives-sec...

Book now to avoid disappointment!

09.03.2026 16:58 πŸ‘ 7 πŸ” 6 πŸ’¬ 0 πŸ“Œ 0
Post image Post image

Didn’t get round to photos on yesterday’s perambulation in central London. Today to Teddington’s attempt at French gothic (now the Landmark Arts Centre) for an International Women’s Day concert w Twickenham Choral contributing Roxanna Panufnik’s Wild Musick along with Eleanor Daley’s Upon my Heart

08.03.2026 16:51 πŸ‘ 4 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

There’s certainly supposed to be some around

05.03.2026 20:08 πŸ‘ 0 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
Post image

#UnconfinedWalks Still a little hazy this morning

05.03.2026 19:03 πŸ‘ 5 πŸ” 0 πŸ’¬ 2 πŸ“Œ 0
A wide shot of a construction site where the refurbished and redesigned buildings of The Box, Plymouth would eventually stand.

A wide shot of a construction site where the refurbished and redesigned buildings of The Box, Plymouth would eventually stand.

These new case studies – developed to support the work of The Major Archive Projects Learning Exchange – are ideal for archive services considering a capital development project!

Share with your colleagues and let us know what you think: www.nationalarchives.gov.uk/archives-sec...

Β© The Box

05.03.2026 13:45 πŸ‘ 5 πŸ” 7 πŸ’¬ 0 πŸ“Œ 0

Are there people in digital scholarship/digital humanities looking at something like "adversarial vibe coding"?

I'm thinking 2 or 3 folks trying to tackle the same core problem, using LLM assisted tools, and then a post-hoc assessment not just of effectiveness, but comparative strategies, etc.

05.03.2026 13:51 πŸ‘ 4 πŸ” 1 πŸ’¬ 1 πŸ“Œ 0
Post image Post image Post image

#UnconfinedWalks a misty day

04.03.2026 22:05 πŸ‘ 3 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0
Post image

Proven that synchrotrom x-ray can be used to touchlessly read magnetic media. Now experimenting with reading degraded motion picture film without even need to unroll the film. It's even sitting in the can. [jaw dropping] 🀯🀯🀯

#JTS2026 #WorthTheTicket

04.03.2026 04:52 πŸ‘ 3 πŸ” 6 πŸ’¬ 1 πŸ“Œ 0
Preview
The Ship Bedford: Atlantic and Archival Crossings in the Long Eighteenth-Century Slave Trade British History in the Long 18th Century Seminar

Really pleased to see the recording of Phillippa Hellawell (TNA) & Liberty Paterson (TNA)'s seminar on The Ship Bedford and the slave trade @long18thsem.bsky.social @ihrlibrary.bsky.social www.history.ac.uk/news-events/...

04.03.2026 13:06 πŸ‘ 15 πŸ” 10 πŸ’¬ 0 πŸ“Œ 0
Preview
Voices in Slavery’s Archive: New project to map enslaved people’s testimony across Guyana - Stabroek News By Estherine Adams, Randy Browne, Juanita Cox, Philippa Hellawell, Linsey McMillan, Diana Paton and Kimberley Thomas. The authors are members of the

"Voices in Slavery’s Archive: New project to map enslaved people’s testimony across Guyana."

I could not be more grateful for the opportunity to do this project w/ colleagues I deeply respect in Guyana and the UK.

www.stabroeknews.com/2026/03/03/f...

03.03.2026 18:26 πŸ‘ 7 πŸ” 6 πŸ’¬ 0 πŸ“Œ 0
Post image

#UnconfinedWalks lovely evening

03.03.2026 20:24 πŸ‘ 6 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0

I’d missed this example of moral panic

03.03.2026 19:49 πŸ‘ 18 πŸ” 8 πŸ’¬ 0 πŸ“Œ 2
A close-up shot of a volunteer, wearing glasses and a blue jumper, scanning Archaeological 35mm Photographic negatives

A close-up shot of a volunteer, wearing glasses and a blue jumper, scanning Archaeological 35mm Photographic negatives

Are you an archives or heritage professional in Scotland?

Are you interested in applying for our Archives Revealed programme?

Sign up for one of our support days next week!

Perth (12th March): www.eventbrite.co.uk/e/archives-r... (1/2)

03.03.2026 13:22 πŸ‘ 1 πŸ” 1 πŸ’¬ 1 πŸ“Œ 0
Post image Post image Post image

#unconfinedWalks yesterday was back to grey and occasional rain. Today however the shorts were out!

02.03.2026 21:07 πŸ‘ 2 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0
Post image

We're thrilled to announce that our annual WW1 weekend will take place in Leeds at the Royal Armouries - Here is a taste of who to expect on the Saturday, with more names to come! @seaspitfires.com @peterhart.bsky.social Sign up for further updates via the link:

mailchi.mp/cf06a5e0b392...

01.03.2026 19:16 πŸ‘ 8 πŸ” 5 πŸ’¬ 2 πŸ“Œ 2

<light cruiser HMS Dido, operating out of Alexandria and certainly included the convoy action which turned into the Second Battle of Sirte

02.03.2026 07:33 πŸ‘ 1 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

There was a copy of the Malta Convoy book in the library at Ainsdale High so I read it back than (it was in a version with two other stories, one was a sub operating in the Med during the war, and I’m not quite sure about the third), but the coincidence struck me too. Grampy’s sea service was on>

02.03.2026 07:33 πŸ‘ 1 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0
A large drift of daffodils naturalised in grass with a road and Queen Anne period house beyond

A large drift of daffodils naturalised in grass with a road and Queen Anne period house beyond

Close-up of multi-headed daffodils with white outer petals and small yellow trumpet

Close-up of multi-headed daffodils with white outer petals and small yellow trumpet

Close up if white blossom, with more blossom on the same tree massed behind and distant glimpses of blue sky and white cloud behind

Close up if white blossom, with more blossom on the same tree massed behind and distant glimpses of blue sky and white cloud behind

More blossom with a light pink tinge and some new coppery leaves breaking out

More blossom with a light pink tinge and some new coppery leaves breaking out

#UnconfinedWalks rather windy, but it’s definitely starting to look like spring out there!

28.02.2026 15:25 πŸ‘ 5 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0
Call for Small Press in Residence 2026 | UCL UCL Special Collections UCL Homepage

Call for applications!

We are looking for a small press to take up a temporary residency at UCL!

Β£5,000 to spend flexibly, an opportunity to work with outstanding collections & collaborate with brilliant students and staff!

blogs.ucl.ac.uk/special-coll...

27.02.2026 14:00 πŸ‘ 19 πŸ” 27 πŸ’¬ 1 πŸ“Œ 4
Preview
Before Bruneval – Chasing Radar in Libya Background 28 February 1942 was the day of Operation BITING, the Bruneval raid (see this link), in which a combined operation managed to obtain German radar equipment from a WΓΌrzburg site, which le…

On 27/28 February 1942 the British executed Operation BITING, raiding a radar installation at Bruneval to gain insights into German radar technology.

In is one of the forgotten little episodes of the desert war, they tried the same thing in December 1941 at Benina, but seem to have failed.

27.02.2026 16:59 πŸ‘ 30 πŸ” 4 πŸ’¬ 2 πŸ“Œ 0
Post image

#UnconfinedWalks An evening ride today, the clearest part of the day

27.02.2026 20:45 πŸ‘ 3 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0
Quick Check Needed

Great opportunity to be involved in something new at The National Archives, based in my department but collaborating across the organisation and the wider archive sector.

Regional Loans Programme Coordinator:

www.civilservicejobs.service.gov.uk/csr/index.cg...

27.02.2026 15:54 πŸ‘ 16 πŸ” 15 πŸ’¬ 0 πŸ“Œ 1
Rapid Assessment Model (DPC RAM) - Digital Preservation Coalition

Aberdeen used the DPC Rapid Assessment Model to assess organizational and technical capabilities in conjunction with Jisc. This helped them to work out exactly what they needed in terms of infrastructure and functional requirements #CopimConference www.dpconline.org/digipres/imp...

27.02.2026 11:01 πŸ‘ 1 πŸ” 2 πŸ’¬ 1 πŸ“Œ 0

Currently rehearsing Haydn’s The Seasons, on autumn with Austrian peasants greeting the new wine

26.02.2026 20:48 πŸ‘ 2 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
Post image

⏲️ New episode out πŸŒ† @iandunt.bsky.social and @dorianlynskey.bsky.social are back with a bonus episode on 15-Minute Cities.

How did such a sensible and benign approach to urban planning give birth to a wild conspiracy theory about authoritarianism?

Listen / watch now ➑️ linktr.ee/originstoryp...

25.02.2026 10:08 πŸ‘ 135 πŸ” 43 πŸ’¬ 22 πŸ“Œ 23
Cover of book with text in yellow reading: The Firearm Revolution: From Renaissance Italy to the European Empires, overlaid on an image of an angel in seventeenth-century dress with wings and a long gun.

Cover of book with text in yellow reading: The Firearm Revolution: From Renaissance Italy to the European Empires, overlaid on an image of an angel in seventeenth-century dress with wings and a long gun.

Hello Bluesky! My new book, THE FIREARM REVOLUTION, is out on 14 April. It’s about how a new technology changed society, and how hard it was to control. Here’s a little thread of what’s inside:

26.02.2026 12:33 πŸ‘ 737 πŸ” 217 πŸ’¬ 33 πŸ“Œ 35
Post image

#UnconfinedWalks A greyer day cheered by blossom

26.02.2026 12:53 πŸ‘ 2 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0