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Submission + - SWIFT launches a global financial blockchain (reuters.com)

Camembert writes: In a move that is sure to make Ripple nervous, traditional financial network Swift announced yesterday that it is partnering with Consensys and more than 30 global banks to build a blockchain based network that will run in parallel with its traditional network. Interestingly, unlike XRP, there is no native coin, rather it aims for interoperability (probably using Chainlink with whom the company did case studies for a few years already). There is also a strong focus on regulatory compliance. There are several news articles and opinion pieces on this event, I linked the Reuters article.

Submission + - Plato's final hours recounted in scroll found in Vesuvius ash (theguardian.com)

An anonymous reader writes: Newly deciphered passages from a papyrus scroll that was buried beneath layers of volcanic ash after the AD79 eruption of Mount Vesuvius may have shed light on the final hours of Plato, a key figure in the history of western philosophy.

In a groundbreaking discovery, the ancient scroll was found to contain a previously unknown narrative detailing how the Greek philosopher spent his last evening, describing how he listened to music played on a flute by a Thracian slave girl.

Despite battling a fever and being on the brink of death, Plato – who was known as a disciple of Socrates and a mentor to Aristotle, and who died in Athens around 348BC – retained enough lucidity to critique the musician for her lack of rhythm, the account suggests.

The decoded words also suggest Plato’s burial site was in his designated garden in the Academy of Athens, the world’s first university, which he founded, adjacent to the Mouseion. Previously, it was only known in general terms that he was buried within the academy.

The text also reveals that Plato was sold into slavery on the island of Aegina, possibly as early as 404BC when the Spartans conquered the island, or alternatively in 399BC, shortly after Socrates’ passing.

“Until now it was believed that Plato was sold into slavery in 387BC during his sojourn in Sicily at the court of Dionysius I of Syracuse,” Ranocchia said. “For the first time, we have been able to read sequences of hidden letters from the papyri that were enfolded within multiple layers, stuck to each other over the centuries, through an unrolling process using a mechanical technique that disrupted whole fragments of text.”

Ranocchia said the ability to identify these layers and virtually realign them to their original positions to restore textual continuity represented a significant advance in terms of gathering vast amounts of information.

Submission + - Impact of Computer Programming on Primary Mathematics Learning Questioned

theodp writes: A new study on the Impact of Programming on Primary Mathematics Learning (abstract only, full article $24.95 on ScienceDirect) is generating some buzz on Twitter amongst K-12 CS educator types with its conclusions that: 1. Compared to traditional activities, programming did not benefit mathematics learning, 2. A negative though small effect of programming on mathematics learning was found, 3. High-road transfer from programming to mathematics is not self-evident, 4. Visual programming languages might distract students from mathematics activities.

From the Abstract: "The aim of this study is to investigate whether a programming activity might serve as a learning vehicle for mathematics acquisition in grades four and five. For this purpose, the effects of a programming activity, an essential component of computational thinking, were evaluated on learning outcomes of three mathematical notions: Euclidean division (N = 1,880), additive decomposition (N = 1,763) and fractions (N = 644). Classes were randomly assigned to the programming (with Scratch) and control conditions. Multilevel analyses indicate negative effects (effect size range 0.16 to 0.21) of the programming condition for the three mathematical notions. A potential explanation of these results is the difficulties in the transfer of learning from programming to mathematics."

The findings of the new study come 4+ years after preliminary results were released from the $1.5M 2015-2019 NSF-funded study Time4CS, a "partnership between Broward County Public Schools (FL), researchers at the University of Chicago, and [tech-bankrolled] Code.org," which explored whether learning CS using Code.org's CS Fundamentals curriculum may be linked to improved learning in math at the grade 3-5 level. While Time4CS researchers concluded that the 'quasi-experimental' study showed "No significant differences in FSA [Florida State Assessment] mathematics scores resulted between treatment and comparison groups," Code.org cites the study as one of "six different studies [that] show children who study computer science perform better in other subjects," apparently based upon the researchers' observation that "completing a higher percentage of non-grade-level assigned CS lessons was positively associated with FSA mathematics scores" [as opposed to the grade-level assigned CS lessons]. "Extra coding activities was one of the key ingredients for improved student [math] performance," explained Code.org in a 2018 Medium post.

Submission + - 'Hunger Stones' reveal drought warnings from the past (sciencealert.com) 1

atcclears writes: The drought in Europe is revealing stones carved centuries ago to give future generations a warning of hard times ahead.

Locals said the centuries-old boulders, known as "hunger stones", reappeared last week as rivers in Europe ran dry due to drought conditions. One such stone is on the banks of the Elbe River, which begins in the Czech Republic and flows through Germany. The boulder dates back to 1616 and is etched with a warning in German: "Wenn du mich seehst, dann weine" – "If you see me, then weep," according to a Google translation of the phrase.

Submission + - Chile says 'No' to mining of its massive Lithium reserves (wsj.com)

atcclears writes: Chile is hailed as the Saudi Arabia of Lithium with a California-sized chunk of terrain that represents a whopping 55% of the world's known deposits of Lithium.

The Chilean Supreme Court has now stated that the Government failed to consult with indigenous people first.

Chilean officials and environmentalists worry about the impact on water supplies. Willy Kracht, Chile’s undersecretary of mining, said recently that up to 2,800 cubic meters of water are needed to produce one ton of lithium in Chile, versus 70 cubic meters for a ton of copper.

Submission + - Rocket Lab will self-fund a mission to search for life in the clouds of Venus (arstechnica.com)

FallOutBoyTonto writes: On Tuesday evening Rocket Lab announced that it will self-fund the development of a small spacecraft, and its launch, that will send a tiny probe flying through the clouds of Venus for about 5 minutes, at an altitude of 48 to 60 km. Beck has joined up with several noted planetary scientists, including Massachusetts Institute of Technology professor Sara Seager, to design this mission.

Electron will deliver the spacecraft into a 165 km orbit above Earth, where the rocket's high-energy Photon upper stage will perform a number of burns to raise the spacecraft's orbit and reach escape velocity. Assuming a May 2023 launch—there is a backup opportunity in January 2025—the spacecraft would reach Venus in October 2023. Once there, Photon would deploy a small, approximately 20 kg probe into the Venusian atmosphere.

Submission + - How the world missed Covid-19's silent spread (nytimes.com) 1

hankwang writes: The New York Times has an article on how the transmission of Covid-19 by seemingly healthy individuals was discovered in Germany on January 27, but the report was discredited because of a quibble over whether it was really asymptomatic or rather presymptomatic or oligosymptomatic transmission. Oligosymptomatic means that the symptoms are so mild that they are not recognized as symptoms.

From the article: European health officials say they were reluctant to acknowledge silent spreading because the evidence was trickling in and the consequences of a false alarm would have been severe. "These reports are seen everywhere, all over the world," said Dr. Josep Jansa, a senior European Union health official. "Whatever we put out, there’s no way back."

It took until the end of March before asymptomatic transmission was publicly acknowledged as playing a significant role. But even in mid-June, WHO placed ads on Google search results titled “People With No Symptoms — Rarely Spread Coronavirus.”

Submission + - The 2017 Hugo Awards

Dave Knott writes: The Hugo Awards, the most prestigious awards in science fiction, had their 2017 ceremony today, at WorldCon 75 in Helsinki, Finland.
The winners are:

Best Novel: The Obelisk Gate by N.K. Jemisin
Best Novella: "Every Heart a Doorway" by Seanan McGuire
Best Novelette: "The Tomato Thief" by Ursula Vernon
Best Short Story: "Seasons of Glass and Iron", by Amal El-Mohtar
Best Related Work: Words Are My Matter: Writings About Life and Books, 2000-2016 by Ursula K Le Guin
Best Graphic Story: Monstress, Volume 1: Awakening , written by Marjorie Liu, illustrated by Sana Takeda
Best Dramatic Presentation: Arrival , screenplay by Eric Heisserer based on a short story by Ted Chiang, directed by Denis Villeneuve
Best Dramatic Presentation: The Expanse: Leviathan Wakes , written by Mark Fergus and Hawk Ostby, directed by Terry McDonough
Best Series: The Vorkosigan Saga, by Lois McMaster Bujold (Baen)
John W Campbell Award for Best New Writer: Ada Palmer

Just as they did last year, female creators have dominated the awards, with women taking home awards in the major categories—including N. K. Jemisin, who became the first woman to win the Hugo for Best Novel twice in a row since Lois McMaster Bujold did in 1991 and 1992.
This year’s slate of nominees, unlike the drama surrounding the 2016 and 2015 Hugos, was less impacted by the ballot-stuffing tactics of the “Rabid Puppies”, thanks to a change in the way nominees were voted for this year (including the fact no work could appear in more than one category) in an attempt to avoid tactical slate picks.

Submission + - WWII Bugatti 100P: Jet Fighter that Could've Won Battle of Britain for the Nazis (ibtimes.co.uk) 2

concertina226 writes: A team of engineers is working together to recreate the Bugatti Veyron (or Bugatti 100P), an art deco-era fighter plane designed for World War II that would have broken the air speed record in 1940 — only the plane was never flown.

Featuring forward pitched wings, a zero-drag cooling system and computer-directed flight control, plane was capable of reaching an air speed of 500mph, which would have made it the fastest and most advanced plane of its time.

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