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Imagine a publishing house with the mission of making knowledge and insights available to everybody for free, while ensuring high standards.

Well, the three universities of Berlin and the Charité have now joined forces to do just that.

They founded "Berlin Universities Publishing". Neither authors not readers pay. The pdf of books are freely available under a Creative Commons licence.

It's called "Diamond Open Access". They're just starting up. Much more to come.

berlin-universities-publishing

🇪🇺 **Living conditions in Europe - poverty and social exclusion**

“_In 2024, 93.3 million people in the EU were at risk of poverty or social exclusion; this was equivalent to 21.0% of the EU population._”

🔗 ec.europa.eu/eurostat/statisti.

🇺🇸 **The federal minimum wage is officially a poverty wage in 2025**

“_The annual earnings of a single adult working full-time, year-round at $7.25 an hour now fall below the poverty threshold of $15,650 (established by the Department of Health and Human Services guidelines)._”

🔗 epi.org/blog/the-federal-minim.

@economics

💻 :youtube: **But what is Quantum Computing? (Grover's Algorithm)**

3Blue1Brown

"_Qubits, state vectors, and Grover's algorithm for search._"

length: thirty-six minutes and fifty-three minutes.

🔗 youtube.com/watch?v=RQWpF2Gb-g.

@science

🏴󠁧󠁢󠁳󠁣󠁴󠁿 **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

:youtube: **Did Vikings Really Wear Horned Helmets—or Was It All Just Opera?**

Gresham College

length: one minute and one second.

🔗 youtube.com/watch?v=w46Jw9yAM3.

AI-generated computer code is rife with references to non-existent third-party libraries, creating a golden opportunity for supply-chain attacks that poison legitimate programs. Read more at @ArsTechnica. #AI #Coding #LLM #Tech #Technology flip.it/-tSFJ9

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.

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