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🏴󠁧󠁢󠁳󠁣󠁴󠁿 **At the far end of everything: A likely Ahrensburgian presence in the far north of the Isle of Skye, Scotland**

“_ he people who made these artefacts originated in the mainland of northwest Europe, crossed Doggerland into what is now Britain, and eventually reached the far north of the Isle of Skye. Here, they adapted to live in a fragmented, fluctuating, and volatile environment amid melting glaciers, mountains, and oceans—vastly different from the low-lying environments of their homelands on the northwestern edge of the Great European Plain._”

Hardy, K., Barlow, N.L.M., Taylor, E., Bradley, S.L., McCarthy, J. and Rush, G. (2025), At the far end of everything: A likely Ahrensburgian presence in the far north of the Isle of Skye, Scotland. J. Quaternary Sci. doi.org/10.1002/jqs.3718.

@archaeodons

Satirist, mathematician, physician, librettist, numismatist, Newton’s lieutenant John Arbuthnot was baptised 29 April 1667. #histsci
thonyc.wordpress.com/2010/04/2

Glass is dead.

Humankind is overdue for moving past glass for state-of-the-art optics. We’re never going to be completely rid of glass, but we have been coasting on 17th century technology for 21st century applications.

labrigger.com/blog/2025/04/27/

**The Periodic Table of Primes**

“_We identify 48 integers out of a period of 2x3x5x7=210 to be the roots of all primes as well as composites without factors of 2, 3, 5, and 7. Each prime, twin primes, or composite without factors of 2, 3, 5 and 7 is an offspring of the 48 integers uniquely allocated on the PTP._”

Li, Han-Lin and Fang, Shu-Cherng and Kuo, Way, The Periodic Table of Primes (April 6, 2024). Available at SSRN: dx.doi.org/10.2139/ssrn.474223.

🇺🇸 🚢 **Trump tariffs prompt slump in shipments to US ports**

“Number of vessels scheduled to arrive at Port of Los Angeles next week is down by almost a third year on year_”

🔗 theguardian.com/business/2025/.

@economics

Intel admits what we all knew: no one is buying AI PCs
xda-developers.com/intel-admit
▪️Despite Lunar Lake, Intel is seeing stronger demand for older Raptor Lake systems.
▪️The Intel 7 node is seeing production shortages due to increased demand.
▪️AI PCs powered by Meteor Lake and Lunar Lake are more expensive, leading buyers to Raptor Lake, according to Intel.

27 Apr 1663: John Milton signs a contract #otd with a publisher for £5 for Paradise Lost - when 1,300 copies were sold, he'd get another £5.

This came to pass 5 years and 364 days later...

📖 🏴󠁧󠁢󠁥󠁮󠁧󠁿 🎙️ **Cartographies of Exclusion: Anti-Semitic Mapping in Medieval England**

“_In his close analyses of English maps from the twelfth and thirteenth centuries, Asa Simon Mittman makes a valuable contribution to conversations about medieval Christian perceptions of Jews and Judaism._”

🔗 newbooksnetwork.com/cartograph.

@histodon @histodons @medievodons @bookstodon

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