nerd

11 Jul 2026

Slashdot

China Lands Rocket During an Orbital Launch For First Time

China successfully recovered an orbital rocket booster for the first time, landing the Long March 10B's first stage into a net-equipped sea platform after its maiden launch. "This mission marks my country's first successful controlled recovery of a launch vehicle and the world's first network-based recovery of a launch vehicle," the China Aerospace Science and Technology Corporation (CASC) announced via social media shortly after the launch. (Translation by Google.) "It signifies a historic breakthrough for my country in the field of reusable rocket technology and will lay a solid foundation for accelerating the improvement of my country's space access capabilities." Space.com reports: The Long March 10B is a two-stage rocket that stands about 207 feet (63 meters) tall, according to the state-owned CASC, the main contractor for China's space program. The vehicle's first stage burns kerosene and liquid oxygen (LOX) propellants, whereas the second stage uses LOX and liquid methane. In reusable mode, the Long March 10B can loft about 16 tons of payload to low Earth orbit. And the rocket flew with a payload on its debut liftoff -- a satellite that successfully reached "its predetermined orbit," according to the CASC update. That post did not provide any details about the spacecraft or its orbit. It did give a brief rundown of the first-stage recovery, however. "Approximately 6 minutes after the first and second stages separated, the first stage returned vertically and was successfully recovered at a sea-based recovery platform using a net system," CASC officials wrote, noting that launch occurred from the Hainan Commercial Space Launch Site on Friday at 12:15 a.m. EDT (0415 GMT; 12:15 p.m. Beijing time.) "The launch and first-stage recovery missions were a complete success."

Hacker News

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11 Jul 2026 6:09am GMT

The vintage beauty of Soviet control rooms (2018)

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11 Jul 2026 5:19am GMT

Slashdot

Apple Sues OpenAI, Accusing It of Stealing Company Secrets

An anonymous reader quotes a report from The New York Times: Apple on Friday accused OpenAI of stealing secrets about products still in development, setting up a legal face-off between two of the world's biggest tech companies. In a lawsuit filed in U.S. District Court for the Northern District of California, the consumer tech giant said that OpenAI, a leader in artificial intelligence that has a new hardware business, had asked job candidates from Apple to share details about secret projects and to bring device components and prototypes to their interviews. Apple also accused an OpenAI employee of downloading internal documents from a laptop owned by the iPhone maker. OpenAI used the confidential information to approach Apple's manufacturing partners, including asking one partner to demonstrate Apple's technique for finishing metal on its devices, the lawsuit says. Apple sent a letter to OpenAI in February to raise concerns that confidential information could be "making its way to OpenAI's business improperly," according to the suit. OpenAI did not respond, Apple said. "OpenAI's nascent hardware business now rests on the shakiest of foundations, rotten to its core by its illegal reliance on misappropriated trade secrets," Apple wrote in its lawsuit. [...] In its lawsuit Friday, Apple accused Tang Tan, OpenAI's chief hardware officer and a former Apple executive, of coaching his hires from Apple on how to evade Apple's security processes for departing employees. Apple accused another former employee, Chang Liu, of using a former colleague's Apple-owned laptop to access and download technical documents while working at OpenAI. Mr. Liu told that Apple employee what information about unannounced products she should study before job interviews, Apple said. Mr. Liu also planned to access internal documents through an Apple-owned laptop that he didn't return when he left the company, according to the lawsuit. OpenAI had misled the manufacturing company it approached to learn about the metal finishing technique to believe it had Apple's permission to view it, according to the lawsuit. Apple is seeking an injunction that would prevent OpenAI from possessing, using or sharing Apple's trade secrets, as well as an order requiring OpenAI to return Apple's intellectual property.

10 Jul 2026

Ars Technica

Quantum error correction can constantly recalibrate a processor

Reinforcement learning uses error information to adjust control algorithms.

10 Jul 2026 11:02pm GMT

Slashdot

Brown Professor Suspects Majority of His Class Used AI To Cheat

Longtime Slashdot reader schwit1 shares a report from Inside Higher Ed: For the first time since he started teaching Welfare Economics and Social Choice Theory nearly two decades ago, Brown University economics professor Roberto Serrano gave his students a take-home midterm this spring. Quite a few students had expressed anxiety about being in a classroom after a gunman killed two students and injured nine in a December mass shooting at Brown, and so "it was appropriate," he said, to allow students to take their exams at home. But by the end of the semester, Serrano regretted the decision. Dozens of students in the class likely used artificial intelligence to cheat and earn perfect or near-perfect scores on their midterm, he said. Serrano in turn made the final exam in-person, which led more than a dozen students to drop the course and even more to fail it. Administrators' response to the widespread cheating event has been "meek," he said, and the incident has raised questions about how universities can -- and should -- respond to AI-enabled cheating at scale. "I am not declaring [the midterm] void for now. I am going to give the class a chance to prove me wrong," he wrote. "That is, if the distribution of the final exam is roughly similar to the distribution of the midterm, I will count the midterm. Otherwise, which is of course what I expect to happen, I will declare the midterm void and reweigh the final accordingly." Serrano heard crickets from his students, but 18 of them subsequently dropped the class. Nine students remained enrolled but did not take the final exam. And Serrano said the results proved him right; three students earned a zero, and the average score on the final was 48.6 percent -- by far a historic low, he said. Previously, the average final exam score had never dropped below 65 percent. Only a few students scored similarly to how they did on the midterm.