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Comment Re: Excellent (Score 1) 123

I use the magsafe on my laptop. I almost always use the laptop in the same place and only charge it there, so it's not getting mixed into my collection and picked back out, and the magsafe is somewhat easier to fumble into place than USB-C. If I was using it long enough somewhere different to need to charge it, I'd grab a USB-C (probably already nearby), rather than collecting the magsafe from where it's set up.

Comment Re: Reading TFA (Score 1) 82

They could include things like special lines at immigration, rather than just visa requirements. Arriving in Amsterdam with an EU passport is much less of a hassle than arriving with a US passport, but they both count the same on this report. Then there's the question of whether you need a permit to stay indefinitely, or just the passport.

Comment Re: Need metrcis on number of positives + hours ne (Score 2) 92

The person who made the report is a professional penetration tester. His usual method is to look for anything that could be wrong and then test whether it actually is. What he found is that the AI tools came up with potential issues he hadn't thought of, and they weren't all wrong, so it's a valuable tool to him because he normally runs out of ideas rather than running out of time to test them. He complained about the UI making it hard to go through large lists of reported issues exhaustively, and he only used the suggested fixes to get a better idea of what the issue was supposed to be. So it's clear that the tool's output wouldn't be directly useful to a maintainer, but it does serve a purpose.

Comment Practically already true (Score 1) 107

I got a third-party cable for my phone that my phone recognizes as being able to charge it faster than the cable that came with the phone could. They should probably warn you that they don't have a cable or charger, in case you're getting a phone because you lost everything and don't have that stuff, but the first-party stuff isn't better these days.

Comment Re: Deciding when to correct a human (Score 1) 22

I think it's even more interesting, in that one or two humans have to decide whether to question a call, and they have to identify calls that were wrong, not just ones they want to overturn, and they don't have a great angle to figure out what the algorithm would do. I think it's going to be fun to see batters try to do the ump's job, while standing to the side and considering swinging at the pitch.

Comment Re: Really??!! (Score 1) 173

I think the real issue is warm parts of China selling to cold parts of India without including the features that aren't needed near the factory. We know lots about battery chemistry, but rural farmers have had more immediately relevant things to know about up to now and don't have a good source of information on this new thing the government is pushing, so they skip things that sound like luxuries and end up with something inappropriate for their purpose.

Submission + - Another large Black hole in "our" Galaxy (arxiv.org)

RockDoctor writes: A recent paper on ArXiv reports a novel idea about the central regions of "our" galaxy.

Remember the hoopla a few years ago about radio-astronomical observations producing an "image" of our central black hole — or rather, an image of the accretion disc around the black hole — long designated by astronomers as "Sagittarius A*" (or SGR-A*)? If you remember the image published then, one thing should be striking — it's not very symmetrical. If you think about viewing a spinning object, then you'd expect to see something with a "mirror" symmetry plane where we would see the rotation axis (if someone had marked it). If anything, that published image has three bright spots on a fainter ring. And the spots are not even approximately the same brightness.

This paper suggests that the image we see is the result of the light (radio waves) from SGR-A* being "lensed" by another black hole, near (but not quite on) the line of sight between SGR-A* and us. By various modelling approaches, they then refine this idea to a "best-fit" of a black hole with mass around 1000 times the Sun, orbiting between the distance of the closest-observed star to SGR-A* ("S2" — most imaginative name, ever!), and around 10 times that distance. That's far enough to make a strong interaction with "S2" unlikely within the lifetime of S2 before it's accretion onto SGR-A*.)

The region around SGR-A* is crowded. Within 25 parsecs (~80 light years, the distance to Regulus [in the constellation Leo] or Merak [in the Great Bear]) there is around 4 times more mass in several millions of "normal" stars than in the SGR-A* black hole. Finding a large (not "super massive") black hole in such a concentration of matter shouldn't surprise anyone.

This proposed black hole is larger than anything which has been detected by gravitational waves (yet) ; but not immensely larger — only a factor of 15 or so. (The authors also anticipate the "what about these big black holes spiralling together?" question : quote "and the amplitude of gravitational waves generated by the binary black holes is negligible.")

Being so close to SGR-A*, the proposed black hole is likely to be moving rapidly across our line of sight. At the distance of "S2" it's orbital period would be around 26 years (but the "new" black hole is probably further out than than that). Which might be an explanation for some of the variability and "flickering" reported for SGR-A* ever since it's discovery.

As always, more observations are needed. Which, for SGR-A* are frequently being taken, so improving (or ruling out) this explanation should happen fairly quickly. But it's a very interesting, and fun, idea.

Submission + - Surado, formerly Slashdot Japan, is closing at the end of the month. (srad.jp) 1

AmiMoJo writes: Slashdot Japan was launched on May 28, 2001. On 2025/03/31, it will finally close. Since starting the site separated from the main Slashdot one, and eventually rebranded as "Surado", which was it's Japanese nickname.

Last year the site stopped posting new stories, and was subsequently unable to find a buyer. In a final story announcing the end, many users expressed their sadness and gratitude for all the years of service.

Comment Re: Google did a study about this (Score 1) 220

You honestly believe that existing C++ code out in the wild today would most likely pass a borrow checker with just some extra ownership info tacked on?

Nope. Nope. LOL! Nope.

If you can get away with just a major refactor, you'd be lucky. All other cases, the entire architecture would likely need to be vetted, resulting effectively in a rewrite. The only things preserved would be auxiliary modules and perhaps the project name.

Comment Re: This is weak of them (Score 5, Insightful) 68

That might work if Firefox still had 30% market share. Truth be damned, folks will simply say the site works in Chrome, so Firefox will be blamed. And even if they recognize that Firefox isn't at fault, it's easier to tell people to use Chrome than to get all those broken web sites to patch.

Rock. Hard place. Pragmatism.

Comment Re:Time for Faraday shielding and spectrum analyze (Score 5, Interesting) 84

Cheating between grandmasters in an over-the-board game doesn't really need a system requiring electronics. Kasparov once said many years ago, that all he would need to get an edge is to know that there is a devastating move to find. Once you know that such a move exists, you can concentrate your time (chess at this level is really a game of time management) on the key move. The grandmaster can find the solution themselves from there. Communicating that type of information is very cheap and easy. It's just one bit of information - normal move vs critical move. It could be done very effectively by someone sat in the audience holding a water bottle. Hold it in the left hand normally, and then hold it in the right hand to indicate the critical move. It sounds ridiculous but this is something that has worried grandmasters for decades. In the 1978 World Championship, Korchnoi objected to tubs of yogurt being bought out for his opponent Karpov. It was eventually agreed that he could have the same flavoured yogurt bought out at the same time every match, thereby eliminating any information being transmitted by flavour or time. Once you realise the possibilities of signalling in this way, it's very easy to see how a player can be driven to distraction or paranoia; and I suppose in extreme cases, madness. "If it's not the tub of yogurt or the bottle of water, maybe it's the flicking of the lights, or the cough in the background or the sound of aeroplanes flying overhead..." The possibilities are almost endless. So while there's no evidence of it happening in Niemann vs Carlsen, cheating (for a limited definition of cheating) in live events is not as difficult as it first appears. My own opinion is that Carlsen is simply paranoid but given Niemann's admitted history, it's not completely unjustified.

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