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A Nice Little Cryptography Primer

By itss | 28/06/2021
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Pun Intended.

Category: Technology
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  • Amazon Retaliated Against Workers Who Supported Regulating Data Centers, Complaint Says
    by BeauHD on 20/06/2026 at 7:00 am

    Three Amazon employees have filed a civil-rights complaint alleging the company retaliated against them for publicly supporting Seattle regulations on data centers. "The complaint was filed on the workers' behalf by Amazon Employees for Climate Justice, an independent group of corporate employees at Amazon that since 2018 has organized around climate issues," reports The New York Times. "It said the company started investigations and told the employees that they could face discipline, in one case up to potential termination, in an act of intimidation that violated the city's civil rights protections against discrimination for political beliefs." Amazon says it launched the internal investigations to determine whether the employees appeared to be speaking on the company's behalf rather than as private citizens. "As we looked more closely at how these employees represented themselves, and how their comments were received by others, it became clear that they may have been speaking in their capacity as Amazonians and not as private citizens," said an Amazon spokesperson. They said that the company does not allow retaliatory behavior and that when the investigation is concluded, Amazon "may or may not take action based on what we find." The New York Times reports: Five Amazon tech workers affiliated with Amazon Employees for Climate Justice testified at several different hearings before the Seattle City Council and two of its committees. Their testimony in the company's hometown drew national attention, and it put the tech giant in the awkward position of responding to public criticism of data centers and artificial intelligence from its own employees. Patrick Schloesser, who has worked as a software engineer at Amazon Web Services since 2020, said in an interview with The New York Times that Amazon told him he was under investigation last week, when he was called into a meeting with no notice. He had testified at two City Council hearings in early June. "I had this rising sense of anger that Amazon is attempting to infringe on my rights to speak out politically in my city," he said. "If we allow corporations to decide which speech is or is not allowed, that absolutely hurts democracy." [...] [...] The Amazon employees testified that Seattle should consider conditions on allowing new data centers, such as requiring new renewable energy sources of power, banning the use of nondisclosure agreements between the city and developers, and limiting public subsidies. They offered to help create new rules based on their experience as tech workers. "Seattle needs to set the terms so the way any new data centers get built here actually moves us closer to the future we want," Darius Irani, who has worked as a software engineer in Amazon's grocery business since 2021, said at a June 3 hearing before the Council's Parks and City Light Committee. He suggested requiring public reporting of water and power use, banning shell companies and harnessing the heat emitted from the chips in data centers to warm nearby buildings. Amazon told news organizations at the time that it respected 'our colleagues' right to voice their opinions and that the company did not have plans to build data centers within the city limits. On June 9, the Council unanimously voted for a one-year moratorium on new, large data centers in order to give it time to develop regulations. The next day, an Amazon employee relations staff member met the three workers in individual meetings and told them that they were under investigation for their testimony, according to the complaint. Mr. Irani said he was repeatedly questioned about his testimony and who else at Amazon was present at the hearings. "It feels like they say one thing publicly and try to silence and intimidate me privately, which I think is wrong," Mr. Irani said. Read more of this story at Slashdot.

  • Using Sound Waves To Make Espresso Could Cut Coffee-Brewing Energy Use By 75%
    by BeauHD on 20/06/2026 at 3:30 am

    Researchers developed an ultrasonic espresso process that uses high-frequency sound waves instead of hot water to produce espresso-strength coffee at room temperature. And, not only did coffee drinkers find it comparable to traditional espresso, but the brewing process cut energy use by up to 75%. An anonymous reader quotes a report from The Conversation: We have developed what we call an ultrasonic espresso: a room-temperature brewing process that uses high-frequency sound waves to extract the flavor, oils, aroma and caffeine from coffee grounds. The result is an espresso-strength coffee made in under three minutes, but needing far less energy than the conventional method. Saving up to 75% of energy by not heating the water is a minor benefit for home users or small coffee shops. But for companies making ready-to-drink coffee products at industrial scale, it could be very significant indeed. A concentrated room-temperature coffee could be used directly in bottled drinks, milk-based beverages or cold coffee products. It can also be shipped as a concentrate and diluted later. This would reduce not only energy use, but potentially processing time as well. The key to the new process is ultrasound. These are sound waves above the range of human hearing. In our system, a small metal device called a transducer presses against the side of a traditional espresso basket and makes it vibrate rapidly. Those vibrations move through the water and coffee grounds. This creates a phenomenon known as acoustic cavitation. Tiny bubbles form and collapse in the liquid. When these bubbles collapse near coffee particles, they produce microscopic jets and forces that act a little like scrubbing brushes. They pit and fracture the surface of the coffee grounds, helping flavor compounds, oils and caffeine move into the water much faster than they normally would at room temperature. In other words, ultrasound helps us replace heat with mechanical energy. [...] In earlier work, we used ultrasound to speed up cold brew dramatically. But the challenge in this project was different: could we produce something with the strength, body and intensity of espresso, without heating the water? To do that, we adjusted several variables. Brew ratio was one of the most important: how much water we used for each gram of coffee. Too much water and the drink becomes diluted; too little and extraction becomes difficult. Grind size also mattered. Finer grounds allowed us to extract flavor more rapidly. Finally, we tested how long the ultrasound should be applied. We found the sweet spot was about two-and-a-half to three minutes. Of course, making a concentrated coffee in the laboratory is one thing. The real test is whether people want to drink it. [...] For the espresso samples, participants could not reliably tell the traditional and ultrasonic versions apart. There were no significant differences in aroma, flavor, bitterness or overall liking. For filter coffee, the ultrasound version was actually preferred overall, with participants rating its bitterness more pleasantly. Read more of this story at Slashdot.

  • Amazon Drops Sam Altman Movie After Announcing OpenAI Partnership
    by BeauHD on 19/06/2026 at 11:00 pm

    Amazon MGM has dropped Luca Guadagnino's nearly completed Sam Altman biopic Artificial and is seeking another distributor for the film. The move comes months after Amazon expanded its multibillion-dollar partnership with OpenAI, fueling speculation about a potential conflict given the movie's reportedly unflattering portrayal of Altman. The Independent reports: Artificial would have marked the Oscar-nominated Call Me By Your Name director's third Amazon film, following the critically acclaimed Zendaya-led tennis romance Challengers (2024) and the academic scandal drama After the Hunt (2025), starring Julia Roberts. The new movie is said to chronicle the brief period when Altman was abruptly ousted as OpenAI's CEO in 2023 and subsequently rehired. Monica Barbaro and Ike Barinholtz star alongside Garfield as former OpenAI CTO Mira Murati and SpaceX founder Elon Musk, while Yura Borisov, Cooper Hoffman, Jason Schwartzman, Cooper Koch, Billie Lourd, Zosia Mamet, Angus Imrie, Chris O'Dowd, Mark Rylance and Margo's Got Money Troubles breakout Thaddea Graham round out the cast. It is unclear exactly why the film was dropped, but according to Variety, the news came after it had already undergone positive screen tests. An early viewer told the publication that the film's portrayals of Altman and newly minted trillionaire Musk are the two characters audiences would "like the least." It was also reported that Amazon had already seen every early iteration of the script before Guadagnino was hired to direct. Altman and Amazon founder Jeff Bezos have developed a high-profile friendship over the years. In fact, the former was in attendance at Bezos's wedding to Lauren Sanchez, which took place in Venice, Italy, in 2025. In recent months, the two have continued to deepen their professional partnership that began in 2015, when Amazon became one of OpenAI's first investors. Ten years later, the companies closed their first major deal in November 2025, allowing the ChatGPT maker to run its systems on Amazon's U.S. data centers. Read more of this story at Slashdot.

  • Norway Imposes Near Ban On AI In Elementary School
    by BeauHD on 19/06/2026 at 10:00 pm

    Norway will largely prohibit generative AI use for elementary kids ages 6 to 13 beginning with the new school year, while allowing limited, teacher-supervised use for older students. The government says the restrictions are intended to prevent children from skipping foundational reading, writing, and mathematics skills amid declining test scores. Reuters reports: Facing a broad decline in education test scores, the government in 2024 banned smartphones from schools and has given teachers back more powers to enforce discipline in the classroom. Using AI increases the risk that young children skip important steps in their education, Prime Minister Jonas Gahr Stoere told a press conference on Friday. "The most important thing in school is that our children learn to read, write and do mathematics," Stoere said, adding that the new standards will be imposed from the new school year beginning in late August. Pupils from first through seventh grade, aged 6 to 13, should as a general rule not be using AI, while those in lower secondary school, aged 14 to 16, can cautiously adopt tools under teachers' supervision, the government said. In upper secondary education, from ages 17 to 19, students should learn to use AI appropriately so that they are prepared for further education and work, it added. In a related statement, the Norwegian government also said it would propose legislation to fund the use of more books in classrooms, reversing the trend towards computer tablets. Read more of this story at Slashdot.

  • Doom Composer Bobby Prince Has Died
    by BeauHD on 19/06/2026 at 9:00 pm

    Video game composer and sound designer Bobby Prince has died at age 81 following an illness. Developer id software shared the news. Engadget reports: Prince was perhaps best known for his pioneering work on the Doom series. The Library of Congress inducted his soundtrack for the original game into the National Recording Registry just last month. "Despite the limitations of the 1993-era sound card drivers, Prince composed the perfect riff-shredding accompaniment for the game's demon-slaying journey to hell and back," the Library of Congress stated. "Taking advantage of his knowledge of MIDI, Prince even worked to ensure that the sound effects he created could cut through the music by assigning them to different MIDI frequencies." Prince also worked on games such as Wolfenstein 3D, Rise of the Triad and Duke Nukem 3D. In 2006, the Game Audio Network Guild honored Prince with a lifetime achievement award. Read more of this story at Slashdot.

  • Hyundai Takes Full Control of Boston Dynamics As SoftBank Exits For $325 Million
    by BeauHD on 19/06/2026 at 8:00 pm

    Hyundai Motor Group is acquiring SoftBank's remaining 9.65% stake in Boston Dynamics for $325 million, "closing out SoftBank's last piece of Boston Dynamics and turning the Waltham, Massachusetts robotics company into a wholly owned Hyundai business," reports Startup Fortune. From the report: The price is $325 million for the remaining stake, according to the deal terms, and it follows the put option SoftBank retained when Hyundai bought control of Boston Dynamics in 2021. You should read that as a signal, not a footnote. Hyundai paid about $880 million for an 80% stake in Boston Dynamics in the 2021 transaction, valuing the company at roughly $1.1 billion at the time. SoftBank had bought Boston Dynamics from Alphabet in 2017, after Google had acquired the robotics lab in 2013. It was a strange ownership path for a company whose robots became famous on YouTube long before they became obvious commercial products. That part is changing. At CES in Las Vegas on January 5, 2026, Hyundai and Boston Dynamics showed the electric Atlas humanoid robot in public, with the Associated Press reporting that the life-sized robot stood up, walked around the stage and was remotely piloted for the demonstration. The useful detail was not the stagecraft. It was the deployment plan. A production version of Atlas is expected to begin work at Hyundai's electric vehicle plant near Savannah, Georgia, by 2028. [...] If Hyundai can turn that into repeatable manufacturing value, the SoftBank exit will look less like a tidy cleanup and more like the moment Hyundai stopped borrowing a robotics future and decided to own it outright. Read more of this story at Slashdot.

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