nerd

13 May 2026

Slashdot

CERN Open Sources Its KiCad Component Libraries

Ancient Slashdot reader ewhac writes: CERN, a longtime Open Source pioneer, has made several contributions over the years to KiCad ("KEE-kad"), an Open Source EDA (Electronic Design Automation) package widely used in the hobbyist and professional electronics communities. It's gotten so widely used that users can now submit their KiCad design files directly to several electronics fabricators (rather than the traditional step of converting the layouts to Gerber files). Over the years, CERN has also developed their own symbol and footprint libraries to support their own internal electronic designs. Last week, CERN released those KiCad component libraries, containing over 17,000 symbols, under the CERN Open Hardware License.

Linuxiac

OpenZFS 2.4.2 Released with Linux Kernel 7.0 Compatibility

OpenZFS 2.4.2 brings Linux kernel 7.0 compatibility, plus fixes for dRAID, rebuilds, block cloning, snapshots, and mount handling.

13 May 2026 8:29am GMT

Hacker News

SecurityBaseline.eu

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13 May 2026 7:11am GMT

Slashdot

Why Are Some People Mosquito Magnets?

fjo3 shares a report from Phys.org: Ever felt like mosquitoes bite you while ignoring everyone else? Scientists are now making progress in deciphering the complex chemical cocktail that makes particular people more enticing to these disease-spreading bloodsuckers. "It's not a misconception -- mosquitoes are attracted to some people more than others," Frederic Simard of France's Institute of Research for Development told AFP. "But we are not all magnets all the time," the medical entomologist added. A range of sensory cues can cause mosquitoes to pick one human over another -- mainly the smell and heat our bodies give off, and the carbon dioxide we exhale. Female mosquitoes -- which are the only ones that bite -- detect these signals with finely tuned receptors, then choose their target accordingly. "We have known for over 100 years that mosquitoes are attracted by the carbon dioxide that we exhale -- this is the first signal that triggers their behavior" when they are dozens of meters away, Swedish scientist Rickard Ignell told AFP. Within around 10 meters, "mosquitoes will start detecting our odor, and in combination with carbon dioxide," this attracts them even more, said the senior author of a recent study on the subject. As they get closer, body temperature and humidity make particular humans even more enticing. [...] For Ignell's recent study, the researchers released Aedes aegypti mosquitoes -- known for spreading yellow fever and dengue -- on 42 women in a lab, to see which ones they preferred. "We have shown that mosquitoes use a blend of odorous compounds (we identified 27 that the mosquitoes will detect, out of the possible 1,000) for their attraction to us," Ignell said. The woman the mosquitoes most liked to bite -- which included pregnant women in their second trimester -- produced a large amount of a particular compound made by a breakdown of the skin oil sebum. That even a small increase of this compound -- called "1-octen-3-ol", or mushroom alcohol -- made a difference came as a surprise, Ignell emphasized.

Hacker News

Deterministic Fully-Static Whole-Binary Translation Without Heuristics

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13 May 2026 4:25am GMT

Slashdot

Sam Altman Testifies That Elon Musk Wanted Control of OpenAI

OpenAI CEO Sam Altman took the stand Tuesday in Elon Musk's trial against the company, testifying that Musk repeatedly sought control of OpenAI before leaving in 2018. Altman said he opposed putting AI "under the control of any one person," while Musk's lawyer used a pointed cross-examination to attack Altman's trustworthiness. An anonymous reader shares updates from the testimony via the New York Times: Before Elon Musk left OpenAI in a power struggle in 2018, he wanted to merge the nonprofit artificial intelligence lab with Tesla, his electric car company. Mr. Musk and other OpenAI co-founders met several times to discuss the merger. OpenAI's chief executive, Sam Altman, was even offered a seat on Tesla's board of directors, according to a court document. But folding OpenAI into Tesla would have eliminated the lab's nonprofit status, and that, Mr. Altman said on the witness stand on Tuesday, was something he wanted to avoid. [...] "I believed that A.I. should not be under the control of any one person," Mr. Altman said. [...] Mr. Altman testified about his feud with Mr. Musk. He said he had become worried that Mr. Musk, who provided the early investment money for OpenAI, wanted to take control of the lab. He described what he called a "particularly harrowing moment" when his OpenAI co-founders asked Mr. Musk what would happen to his control of a potential for-profit when he died. Mr. Altman said Mr. Musk had replied that the control would pass to his children. "I was not comfortable with that," Mr. Altman said. When Mr. Musk lost a power struggle for control of the lab, he left, forcing Mr. Altman to find another big financial backer in Microsoft. But Mr. Altman ran into trouble in 2023 when OpenAI's board fired him because, as several of its members have testified in the trial, it didn't trust him. Steven Molo, Mr. Musk's lead lawyer, homed in on Mr. Altman's trustworthiness during an aggressive cross-examination. "Are you completely trustworthy?" Mr. Molo asked. "I believe so," Mr. Altman answered. After questioning Mr. Altman's trustworthiness for nearly 20 minutes, Mr. Molo turned to Mr. Altman's relationship with Mr. Musk. Mr. Altman said that after he met Mr. Musk in the mid-2010s, Mr. Musk had occasionally expressed concern about the dangers of A.I. But Mr. Musk spent far more time saying he was worried that companies like Google would get ahead in A.I. development, Mr. Altman said. (Mr. Musk testified in the trial that he had wanted to create OpenAI to prevent Google from controlling the technology.) Mr. Altman, the lawyer intimated, took advantage of Mr. Musk's concerns and was never sincere about his own A.I. fears. "Are you a person who just tells people things they want to hear whether those things are true or not?" Mr. Molo asked. The lawyer also questioned whether Mr. Atman, who became a billionaire through years of tech investments, was self-dealing through OpenAI. Mr. Molo showed a list of Mr. Altman's personal investments across a number of companies that stand to benefit from their association with OpenAI. They included Helion Energy, a start-up that has deals with Microsoft and OpenAI, and Cerebras, a chip maker in business with OpenAI. Mr. Molo asked if Mr. Altman, who is on OpenAI's board as well as its chief executive, would ever fire himself. "I have no plans to do that," Mr. Altman said. OpenAI's odd journey from nonprofit lab to what it is today -- a well-funded, for-profit company that is still connected to a nonprofit called the OpenAI Foundation with an endowment that could be worth more than $130 billion -- provided grist for Mr. Molo's questions about Mr. Altman's motivations. He implied that Mr. Altman could have continued to build OpenAI as a pure nonprofit. But the only way to build such a valuable charity was to raise billions through a for-profit venture, Mr. Altman responded. Still, the giant sums being raised appeared to upset Mr. Musk. In late 2022, according to court documents, Mr. Musk sent a text to Mr. Altman complaining that Microsoft was preparing to invest $10 billion in OpenAI. "This is a bait and switch," Mr. Musk said at the time. But Mr. Altman, under questioning from his own lawyers, said: "Every step of the way, I have done my best to maximize the value of the nonprofit. I would point out that there are not a lot of historical examples of a nonprofit at this scale." Before Altman took the stand, OpenAI board chair Bret Taylor continued his testimony that began on Monday. He said Elon Musk's 2024 bid to buy the company's assets appeared to conflict with his lawsuit and was rejected because the board did not believe OpenAI's mission should be controlled by one person. "We did not feel like it was appropriate for one person to control our mission," he said. Recap: Microsoft CEO Satya Nadella Testifies In OpenAI Trial (Day Nine) Sam Altman Had a Bad Day In Court (Day Eight) Sam Altman's Management Style Comes Under the Microscope At OpenAI Trial (Day Seven) Brockman Rebuts Musk's Take On Startup's History, Recounts Secret Work For Tesla (Day Six) OpenAI President Discloses His Stake In the Company Is Worth $30 Billion (Day Five) Musk Concludes Testimony At OpenAI Trial (Day Four) Elon Musk Says OpenAI Betrayed Him, Clashes With Company's Attorney (Day Three) Musk Testifies OpenAI Was Created As Nonprofit To Counter Google (Day Two) Elon Musk and OpenAI CEO Sam Altman Head To Court (Day One)