Technology

California’s new bill requires DOJ-approved 3D printers that report on themselves targeting general-purpose machines.

Assembly Member Bauer-Kahan introduced AB-2047, the “California Firearm Printing Prevention Act,” on February 17th. The bill would ban the sale or transfer of any 3D printer in California unless it appears on a state-maintained roster of approved makes and models… certified by the Department of Justice as equipped with “firearm blocking technology.” Manufacturers would need to submit attestations for every make and model. The DOJ would publish a list. If your printer isn’t on the list by March 1, 2029, it can’t be sold. In addition, knowingly disabling or circumventing the blocking software is a misdemeanor.

Scientists designed color-changing carbon dot biosensors that can detect spoiled meat in sealed packages in real-time, just in case you don't trust the sniff-test.

Feed algorithms are widely suspected to influence political attitudes. However, previous evidence from switching off the algorithm on Meta platforms found no political effects. Here we present results from a 2023 field experiment on Elon Musk’s platform X shedding light on this puzzle. We assigned active US-based users randomly to either an algorithmic or a chronological feed for 7 weeks, measuring political attitudes and online behaviour. Switching from a chronological to an algorithmic feed increased engagement and shifted political opinion towards more conservative positions, particularly regarding policy priorities, perceptions of criminal investigations into Donald Trump and views on the war in Ukraine. In contrast, switching from the algorithmic to the chronological feed had no comparable effects. Neither switching the algorithm on nor switching it off significantly affected affective polarization or self-reported partisanship. To investigate the mechanism, we analysed users’ feed content and behaviour. We found that the algorithm promotes conservative content and demotes posts by traditional media. Exposure to algorithmic content leads users to follow conservative political activist accounts, which they continue to follow even after switching off the algorithm, helping explain the asymmetry in effects. These results suggest that initial exposure to X’s algorithm has persistent effects on users’ current political attitudes and account-following behaviour, even in the absence of a detectable effect on partisanship.

“Teleporting quantum information is now a practical reality,” asserts Deutsche Telekom. The firm’s T‑Labs used commercially available Qunnect hardware to demo quantum teleportation over 30km of live, commercial Berlin fiber, running alongside classical internet traffic. In an email to Tom’s Hardware, Deutsche Telekom’s PR folks said that Cisco also ran the same hardware and demo process to connect data centers in NYC.

A widespread concern is what would happen to Dutch weapon systems if the Americans were to withdraw completely as an ally. For example, Dutch F-35 aircraft are dependent on American software updates. Yet, Tuinman isn't particularly worried about this.

"The F-35 is truly a shared product. The British make the Rolls-Royce engines, and the Americans simply need them too." And even if this mutual dependency doesn't result in software updates, the F-35, in its current state, is still a better aircraft than other types of fighters.

If you still want to upgrade despite everything, I'm going to say something I should never say, but I will anyway: you can jailbreak an F-35 just like an iPhone. (Crack it with your own software, ed.)

For the back half of the 20th century (what Fortune founder Henry Luce called “The American Century”), MBA and law degree programs were a ticket to a great office job and a path to the American Dream. The 21st century is asking the question: What happens when all those office jobs get automated?....

cross-posted from: https://lemmy.ml/post/43389705

Recently in the presence of Defence Minister, Rajnath Singh, successful full afterburner test of the Kaveri engine was done at the Gas Turbine Research Establishment (GTRE) in Bangalore.

The event showcased a new design with significant changes in Partnership with BrahMos Aerospace, this finally shows some development in this decade old project.

The afterburner, however, has historically posed the greatest hurdle. Earlier iterations managed only around 73 kN of wet thrust, which, while promising, did not match the performance of contemporary low-bypass turbofans. For general, the GE F-404 engine for Tejas Mk1 produces and afterburner thrust of 84Kn, a 70 per cent augmentation. Modern designs typically achieve 60-80 per cent thrust increases, depending on operational conditions and engineering refinements. The new Kaveri engine with new KDE core gives a thrust in afterburner of 81-83Kn or 79-81Kn on the safer side.

I think it is a good news and not DRDO should focus on reducing weight of the engine to increase thrust to weight ratio and finally, these can be tested on Tejas.

What do you think, let me know. To all the Indians and people who like our content, Join "BharatDefense". We really need your support.

Jai Hind

https://ghostarchive.org/archive/qcBXw

cross-posted from: https://piefed.social/c/reddit/p/1782637/reddit-meta-and-google-voluntarily-gave-dhs-info-of-anti-ice-users-report-says

DHS is expanding its use of administrative subpoenas, which don't come from judges.