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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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  • Daylight Saving Time Ritual Continues. But Are There Alternatives?
    by EditorDavid on 08/03/2026 at 8:34 am

    Would you move sunrise to 9 a.m. in Detroit? Or to 4:11 a.m. in Seattle... Though both options have problems, "There's no law we can pass to move the sun to our will," argues the president of the nonprofit "Save Standard Time". The Associated Press explains why America remains stuck in that annual ritual making clocks "spring forward, fall backward..." The U.S. has tinkered with the clock intermittently since railroads standardized the time zones in 1883. So has a lot of the world. About 140 countries have had daylight saving time at some point; about half that many do now. About 1 in 10 U.S. adults favor the current system of changing the clocks, according to an AP-NORC poll conducted last year. About half oppose that system, and some 4 in 10 didn't have an opinion. If they had to choose, most Americans say they would prefer to make daylight saving time permanent, rather than standard time. ince 2018, 19 states — including much of the South and a block of states in the northwestern U.S. — have adopted laws calling for a move to permanent daylight saving time. There's a catch: Congress would need to pass a law to allow states to go to full-time daylight saving time, something that was in place nationwide during World War II and for an unpopular, brief stint in 1974. The U.S. Senate passed a bill in 2022 to move to permanent daylight saving time. A similar House bill hasn't been brought to a vote. U.S. Rep. Mike Rogers, a Republican from Alabama who introduces such a bill every term, said the airline industry, which doesn't want the scheduling complexity a change would bring, has been a factor in persuading lawmakers not to take it up. U.S. Rep. Greg Steube, a Florida Republican, is proposing another approach. "Why not just split the baby?" he asked. "Move it 30 minutes so it would be halfway between the two." Steube thinks his bill could get bipartisan support. The change would make the U.S. out of sync with most of the world — though India has taken a similar approach and in Nepal, the time is 15 minutes ahead of India. Read more of this story at Slashdot.

  • As US Tariffs Hit EVs, Hyundai Discontinues Its Cheapest IONIQ 6, While Kia Delays EV6 adn EV9 GT
    by EditorDavid on 08/03/2026 at 4:44 am

    First, Hyundai "is discontinuing its most affordable electric sedan after just three years on the market," reports USA Today. After being introduced in 2022, the Hyundai Ioniq 6 "quickly gained the admiration of automotive critics because of its affordable pricing and capable performance specs." But now, Hyundai "is axing the most affordable versions of the EV, leaving consumers with only one Ioniq 6 option." Hyundai will continue to produce the Ioniq 6 N performance trim, which is the quickest and most powerful iteration of the Ioniq 6. It's also the most expensive. The South Korean automaker is getting rid of lower Ioniq 6 trims due to "disappointing sales and tariff considerations," according to Cars.com. Hyundai sold 10,478 Ioniq 6 models in 2025, dropping 15% from 12,264 units in 2024, a company sales report stated. Hyundai's Ioniq 6 is mainly produced in South Korea, so it faces high import tariffs. Sales increased for their earlier IONIQ 5 model, reports the EV blog Electrek, "up 14% through the first two months of 2026, with 5,365 units sold... Meanwhile, IONIQ 6 sales slid 77% with only 229 units sold in February." Elsewhere they report that Kia's EV6 and EV9 "didn't fare much better with sales down 53% (600 units sold) and 40% (819 units sold), respectively." Now a Kia spokesperson tells Car and Driver that the 2025 EV6 GT and 2026 EV9 GT "will be delayed until further notice." They attributed the move to "changing market conditions," but added that this delay "does not impact the availability of other trims in the EV6 and EV9 lineups." More from Electrek: The news comes after Kia already said it was delaying the EV4, its entry-level electric sedan, "until further notice." It was expected to arrive in the US this year alongside the EV3, Kia's compact electric SUV that's already a top-seller in the UK, Europe, and other overseas markets. While Hyundai didn't directly say it, since the EV3, EV4, EV6 GT, and Hyundai IONIQ 6 are built in Korea, the Trump administration's import tariffs and other policy changes are likely the biggest reason to blame here. Kia and Hyundai, like many others, are hesitant to bring new EVs to the US due to the changes. The IONIQ 6, EV6 GT, and EV9 GT join a string of other models that have either been postponed or canceled altogether. Read more of this story at Slashdot.

  • Steven Spielberg + Dinosaurs + Netflix = Mixed Reviews
    by EditorDavid on 08/03/2026 at 2:34 am

    Steven Spielberg directed his last Jurassic Park movie nearly 30 years ago, notes ScreenRant. But the 79-year-old filmmaker now brings us The Dinosaurs, a four-part documentary on Netflix where he's executive producer: The first few reviews are in, and the results lead to a perfect 100% score on Rotten Tomatoes. It's worth noting that the rating will likely fluctuate since there are only six reviews. So far, critics all agree that the new Netflix docuseries is a breathtaking visual of history's most majestic creatures, and Morgan Freeman's soothing narration elevates the experience. Most importantly, the reviews note that the story is intimate, making the dinosaurs feel real with their personalities. "Audience" reviewers gave it a lower score of 67%. "There is a sense of drama and emotional weight which permeates through the entire series as it tells the story of the dinosaurs from start to the present day. The ending brought tears to my eyes..." "Wow, what a sleeper! Flat graphics, looks like video game animations. Unrelatable story lines. Don't waste your time. Honestly would you even look twice if Spielberg's name wasn't on it?" "This show was honestly incredible... It was a 10/10 series that I absolutely adored highly recommended to anyone who loves and has an interest of the ancient world." "I'm sorry, but the dinos of Prehistoric Planet are far superior, and were achieved on a much smaller budget. Their dinos look absolutely real, and you are convinced you're watching a documentary with real animals" ScreenRant notes Netflix's debut of The Dinosaurs' "aligns perfectly" with the arrival of all four Jurassic World movies on Netflix, where they're already dominating Netflix's "Top 10" charts for the U.S. "Witness the rise and the fall of nature's greatest empire," narrator Morgan Freeman says in the trailer... Read more of this story at Slashdot.

  • A First for Humanity Confirmed: NASA's DART Mission Slowed the Asteroid's Orbit
    by EditorDavid on 08/03/2026 at 12:16 am

    NASA heralded a new study published Friday documenting a first for humanity — "the first time a human-made object has measurably altered the path of a celestial body around the Sun." It was 2022's DART mission where NASA crashed a spacecraft into an asteroid — and the experiment "could have implications for protecting Earth from future asteroid strikes," writes ScienceNews: A spacecraft slowed the orbit of a pair of asteroids around the sun by more than 10 micrometers per second... Within a month, researchers showed that the impact shortened Dimorphos' 12-hour orbit by 32 minutes. Some of the rocks knocked off of Dimorphos fled the vicinity completely, escaping the gravitational influence of the Dimorphos-Didymos pair, says planetary defense researcher Rahil Makadia of the University of Illinois Urbana-Champaign. Those rocky runaways took some momentum away from the duo and changed their joint motion around the sun. To figure out how much that motion was affected, astronomers watched the asteroids pass in front of distant stars, dimming some of the stars' light like a tiny eclipse. These blinks, called stellar occultations, can be visible from anywhere on Earth and are predictable in advance... Calculating how far off occultation timings were from predictions revealed that the asteroids' orbit around the sun was about 150 milliseconds slower than before the DART impact... Didymos and Dimorphos are not a threat to Earth, Makadia says, and weren't before DART. But knowing how a deliberate impact changes one asteroid's orbit can help make defense plans against another, "in case we need to do a kinetic impact for real." The researchers spent nearly two and a half years to collect 22 measurements of the asteroid's post-crash position, relying on amateur astronomers "to go out into the middle of nowhere and observe the necessary stellar occultations," acvcording to their paper. Planetary defense researcher even tells ScienceNews "There was an observer who drove two days each way into the Australian outback to get these measurements." Read more of this story at Slashdot.

  • Japan Approves Stem-Cell Treatments For Parkinson's, Heart Failure In World Firsts
    by EditorDavid on 07/03/2026 at 11:16 pm

    Long-time Slashdot reader fjo3 shared this report from Agence France-Presse: Japan has approved ground-breaking stem-cell treatments for Parkinson's and severe heart failure, one of the manufacturers and media reports said Friday, with the therapies expected to reach patients within months. Pharmaceutical company Sumitomo Pharma said it received the green light for the manufacture and sale of Amchepry, its Parkinson's disease treatment that transplants stem cells into a patient's brain. Japan's health ministry also gave the go-ahead to ReHeart, heart muscle sheets developed by medical startup Cuorips that can help form new blood vessels and restore heart function, media reports said. The treatments could be on the market and rolled out to patients as early as this summer, reports said, citing the health ministry, becoming the world's first commercially available medical products using induced pluripotent stem cells... In a statement, Sumitomo Pharma said it had obtained "conditional and time-limited approval" for the manufacture and marketing of Amchepry under a system which is reportedly designed to get these products to patients as quickly as possible. The approval is a kind of "provisional license", the Asahi newspaper said, after the safety and efficacy of the treatment was judged based on data from fewer patients than in ordinary clinical trials for drugs. A trial led by Kyoto University researchers indicated that the company's treatment was safe and successful in improving symptoms. The study involved seven Parkinson's patients aged between 50 and 69, with each receiving a total of either five million or 10 million cells implanted on both sides of the brain... The patients were monitored for two years and no major adverse effects were found, the study said. Four patients showed improvements in symptoms. The article notes that "Worldwide, about 10 million people have the illness, according to the Parkinson's Foundation," while also notes that today's current therapies "improve symptoms without slowing or halting the disease progression..." Read more of this story at Slashdot.

  • OpenAI's Head of Robotics Resigns, Says Pentagon Deal Was 'Rushed Without the Guardrails Defined'
    by EditorDavid on 07/03/2026 at 10:16 pm

    In a tweet that's been viewed 1.3 million times in the last six hours, OpenAI's head of robotics announced their resignation. They said they "care deeply about the Robotics team and the work we built together," so this "wasn't an easy call," but offered this reason for resigning: AI has an important role in national security. But surveillance of Americans without judicial oversight and lethal autonomy without human authorization are lines that deserved more deliberation than they got. This was about principle, not people. I have deep respect for Sam and the team, and I'm proud of what we built together. "To be clear, my issue is that the announcement was rushed without the guardrails defined," explains a later tweet. "It's a governance concern first and foremost. These are too important for deals or announcements to be rushed." And when asked how many OpenAI employees had left after OpenAI signed their new Pentagon deal, the roboticist said... "I can't share any internal details." The roboticist previously worked at Meta before leaving to join OpenAI in late 2024, reports Engadget: OpenAI confirmed Kalinowski's resignation and said in a statement to Engadget that the company understands people have "strong views" about these issues and will continue to engage in discussions with relevant parties. The company also explained in the statement that it doesn't support the issues that Kalinowski brought up. "We believe our agreement with the Pentagon creates a workable path for responsible national security uses of AI while making clear our red lines: no domestic surveillance and no autonomous weapons," the OpenAI statement read. Read more of this story at Slashdot.

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