Recently the MagQuest competition on improving the measuring of the Earth’s magnetic field announced that the contestants in the final phase have now moved on to launching their satellites within the near future. The goal here is to create a much improved World Magnetic Model (WMM), which is used by the World Geodetic System (WGS). The WGS is an integral part of cartography, geodesy and satellite-based navigation, which includes every sat nav, smartphone and similar with built-in GNSS capabilities.
Although in this age of sat navs and similar it can seem quaint to see anyone bother with using the Earth’s magnetic field with a compass, there is a very good reason why e.g. your Android smartphone has an API for estimating the Earth’s magnetic field at the current location. After your sat nav or smartphone uses its magnetometer, the measurements are then corrected so that ‘north’ really is ‘north’. Since this uses the WMM, it’s pertinent that this model is kept as up to date as possible, with serious shifts in 2019 necessitating an early update outside of the usual five-year cycle.
Goal of the MagQuest competition is thus to find a method that enables much faster, even real-time updates. The three candidate satellites feature three different types of magnetometers: a scalar-vector magnetometer (COSMO), a nitrogen-vacancy (NV) quantum sensor, and the Io-1 satellite containing both a vector fluxgate and atomic scalar magnetometer.
The NV quantum magnetometer is quite possibly the most interesting one, featuring a new, quantum-level approach for magnetic sensing. This effectively uses a flaw in a diamond’s carbon matrix to create a quantum spin state that interacts with magnetic fields and can subsequently be read out. The advantage of this method is its extreme sensitivity, which makes it an interesting sensor for many other applications where measuring the Earth’s magnetic field is essential.
Discord users who return to their Windows 11 PCs to find that the app has restarted should know this behavior isn't a glitch. It's a temporary feature meant to help the chat service resolve memory consumption issues.
OpenAI, alongside Anthropic and Block, have launched the Agentic AI Foundation under the Linux Foundation, describing it as a neutral home for standards as agentic systems move into real production. It may sound well-meaning, but Slashdot reader and NERDS.xyz founder BrianFagioli isn't buying the narrative. In a report for NERDS.xyz, Fagioli writes: Instead of opening models, training data, or anything that would meaningfully shift power toward the community, the companies involved are donating lightweight artifacts like AGENTS.md, MCP, and goose. They're useful, but they're also the safest, least threatening pieces of their ecosystem to "open." From where I sit, it looks like a strategic attempt to lock in influence over emerging standards before truly open projects get a chance to define the space. I see the entire move as smoke and mirrors.
With regulators paying closer attention and developer trust slipping, creating a Linux Foundation directed fund gives these companies convenient cover to say they're being transparent and collaborative. But nothing about this structure forces them to share anything substantial, and nothing about it changes the closed nature of their core technology. To me, it looks like Big Tech trying to set the rules of the game early, using the language of openness without actually embracing it. Slashdot readers have seen this pattern before, and this one feels no different.
After the backlash that greeted Coca-Cola’s AI-generated Christmas ad last month, you’d expect other corporate giants to be more cautious about releasing their own AI-infused efforts. But no. McDonald’s Netherlands decided it’d be a really good idea to use generative AI tools to knock together its own festive commercial. But folks didn’t respond well following […]
Netflix's $72 billion bid to buy Warner Bros Discovery has triggered a consumer class action claiming the merger would crush competition, erase HBO Max as a rival, and hand Netflix control over major franchises. Reuters reports: The proposed class action (PDF) was filed on Monday by a subscriber to Warner Bros-owned HBO Max who said the proposed deal threatened to reduce competition in the U.S. subscription video-on-demand market. "Netflix has demonstrated repeated willingness to raise subscription prices even while facing competition from full-scale rivals such as WBD," the lawsuit said. [...] The lawsuit said the Warner Bros deal would eliminate one of Netflix's closest rivals, HBO Max, and give Netflix control over Warner Bros marquee franchises including Harry Potter, DC Comics and Game of Thrones. On Monday, Paramount Skydance launched a $108 billion hostile bid to buy Warner Bros. Discovery with an all-cash, $30-per-share offer.
Longtime Slashdot reader Randseed writes: With the likes of Google Nest, Ring, and others cooperating with law enforcement, I started to look for affordable wireless IP security cameras that I can put around my house. Unfortunately, it looks like almost every thing now incorporates some kind of cloud-based slop. All I really want is to put up some cameras, hook them up to my LAN, and install something like ZoneMinder. What are the most economical, wireless IP security cameras that I can set up with my server?
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