Comment Re:Only 48kHz? (Score 1) 30
I meant, you get a stream straight from the studio master, not ripped from an audio CD.
Comment Re:Only 48kHz? (Score 1) 30
I thought the "high res" thing was to sell you music straight from the 48KHz master -- not jankily downscaled to 44.1KHz, clipped because of loudness wars, and then lossily compressed. Am I out of date?
Comment Re:USB 2? (Score 1) 31
I still want to use iTunes on my phone to replace my CD collection (or let me put the CDs in the basement while still listening to them). Sadly Apple has crippled it in another way. Songs disappear from iTunes on the phone if they would not be able to stream in your region, even though you ripped them from your own disc.
Comment Re:8k is nice for computers though (Score 1) 138
He kind of has a point though. Many websites force a fixed column layout. You have a choice between stupidly large text size or big borders either side, if your display is landscape orientation.
Comment Re:8k is nice for computers though (Score 1) 138
Yes, I saw crisp text on my 1024x768 LCD display a quarter century ago. But you missed the next part of the sentence, "even at small sizes". As text gets smaller you reach a point where it is no longer clear. On an 8k display even the smallest sizes are pin sharp. They are a bit fuzzy on 4k (as I use at work) and would be headache-inducing mush if you tried to show such tiny text on a 1920x1080 display.
Back in the day there were hand-created bitmap fonts for crisp display at small sizes. Nowadays, for better or worse almost every application uses outline fonts, which look a bit jaggy if rendered without anti-aliasing ("font smoothing") and a bit fuzzy with it. Only on a very high DPI display is this completely unnoticeable. My laptop is 4k and I am very happy with it, but to make best use of a 32 inch screen a higher pixel density is better.
Comment 8k is nice for computers though (Score 2) 138
I'm posting this from my home PC with Dell's 8k monitor. It's nice to see completely crisp text, even at small sizes, and certainly a noticeable quality improvement from 4k. But that's because I am sitting a few inches away. I recently bought a new television, and while I was tempted to pick up a cheap used 8k model, in practice it would make no difference when viewing it from the sofa.
Even Dell seems to have retreated from 8k, however. Their newer top-end monitor has a roughly 6k horizontal resolution.
Scientists Found a Way To Cool Quantum Computers Using Noise (sciencedaily.com) 7
Slashdot reader alternative_right writes: Quantum computers need extreme cold to work, but the very systems that keep them cold also create noise that can destroy fragile quantum information. Scientists in Sweden have now flipped that problem on its head by building a tiny quantum refrigerator that actually uses noise to drive cooling instead of fighting it. By carefully steering heat at unimaginably small scales, the device can act as a refrigerator, heat engine, or energy amplifier inside quantum circuits.
Comment News at 11. (Score 1) 95
Proprietary service drops support for proprietary protocol..
Manufacturer Remotely Bricks Smart Vacuum After Its Owner Blocked It From Collecting Data (tomshardware.com) 123
"An engineer got curious about how his iLife A11 smart vacuum worked and monitored the network traffic coming from the device," writes Tom's Hardware.
"That's when he noticed it was constantly sending logs and telemetry data to the manufacturer — something he hadn't consented to." The user, Harishankar, decided to block the telemetry servers' IP addresses on his network, while keeping the firmware and OTA servers open. While his smart gadget worked for a while, it just refused to turn on soon after... He sent it to the service center multiple times, wherein the technicians would turn it on and see nothing wrong with the vacuum. When they returned it to him, it would work for a few days and then fail to boot again... [H]e decided to disassemble the thing to determine what killed it and to see if he could get it working again...
[He discovered] a GD32F103 microcontroller to manage its plethora of sensors, including Lidar, gyroscopes, and encoders. He created PCB connectors and wrote Python scripts to control them with a computer, presumably to test each piece individually and identify what went wrong. From there, he built a Raspberry Pi joystick to manually drive the vacuum, proving that there was nothing wrong with the hardware. From this, he looked at its software and operating system, and that's where he discovered the dark truth: his smart vacuum was a security nightmare and a black hole for his personal data.
First of all, it's Android Debug Bridge, which gives him full root access to the vacuum, wasn't protected by any kind of password or encryption. The manufacturer added a makeshift security protocol by omitting a crucial file, which caused it to disconnect soon after booting, but Harishankar easily bypassed it. He then discovered that it used Google Cartographer to build a live 3D map of his home. This isn't unusual, by far. After all, it's a smart vacuum, and it needs that data to navigate around his home. However, the concerning thing is that it was sending off all this data to the manufacturer's server. It makes sense for the device to send this data to the manufacturer, as its onboard SoC is nowhere near powerful enough to process all that data. However, it seems that iLife did not clear this with its customers.
Furthermore, the engineer made one disturbing discovery — deep in the logs of his non-functioning smart vacuum, he found a command with a timestamp that matched exactly the time the gadget stopped working. This was clearly a kill command, and after he reversed it and rebooted the appliance, it roared back to life.
Thanks to long-time Slashdot reader registrations_suck for sharing the article.
"That's when he noticed it was constantly sending logs and telemetry data to the manufacturer — something he hadn't consented to." The user, Harishankar, decided to block the telemetry servers' IP addresses on his network, while keeping the firmware and OTA servers open. While his smart gadget worked for a while, it just refused to turn on soon after... He sent it to the service center multiple times, wherein the technicians would turn it on and see nothing wrong with the vacuum. When they returned it to him, it would work for a few days and then fail to boot again... [H]e decided to disassemble the thing to determine what killed it and to see if he could get it working again...
[He discovered] a GD32F103 microcontroller to manage its plethora of sensors, including Lidar, gyroscopes, and encoders. He created PCB connectors and wrote Python scripts to control them with a computer, presumably to test each piece individually and identify what went wrong. From there, he built a Raspberry Pi joystick to manually drive the vacuum, proving that there was nothing wrong with the hardware. From this, he looked at its software and operating system, and that's where he discovered the dark truth: his smart vacuum was a security nightmare and a black hole for his personal data.
First of all, it's Android Debug Bridge, which gives him full root access to the vacuum, wasn't protected by any kind of password or encryption. The manufacturer added a makeshift security protocol by omitting a crucial file, which caused it to disconnect soon after booting, but Harishankar easily bypassed it. He then discovered that it used Google Cartographer to build a live 3D map of his home. This isn't unusual, by far. After all, it's a smart vacuum, and it needs that data to navigate around his home. However, the concerning thing is that it was sending off all this data to the manufacturer's server. It makes sense for the device to send this data to the manufacturer, as its onboard SoC is nowhere near powerful enough to process all that data. However, it seems that iLife did not clear this with its customers.
Furthermore, the engineer made one disturbing discovery — deep in the logs of his non-functioning smart vacuum, he found a command with a timestamp that matched exactly the time the gadget stopped working. This was clearly a kill command, and after he reversed it and rebooted the appliance, it roared back to life.
Thanks to long-time Slashdot reader registrations_suck for sharing the article.
Submission + - Python Software Foundation refuses $1.5 million grant with anti DEI provision. (blogspot.com) 1
Jeremy Allison - Sam writes: The PSF has withdrawn a $1.5 million proposal to US government grant program.
"We became concerned, however, when we were presented with the terms and conditions we would be required to agree to if we accepted the grant. These terms included affirming the statement that we “do not, and will not during the term of this financial assistance award, operate any programs that advance or promote DEI, or discriminatory equity ideology in violation of Federal anti-discrimination laws.”
"We became concerned, however, when we were presented with the terms and conditions we would be required to agree to if we accepted the grant. These terms included affirming the statement that we “do not, and will not during the term of this financial assistance award, operate any programs that advance or promote DEI, or discriminatory equity ideology in violation of Federal anti-discrimination laws.”
New Large Coral Reef Discovered Off Naples Containing Rare Ancient Corals (independent.co.uk) 13
Off the southwest cost of Italy, a remotely operated submarine made "a significant and rare discovery," reports the Independent — a vast white coral reef that was 80 metres tall (262 feet) and 2 metres wide (6.56 feet) "containing important species and fossil traces."
Often dubbed the "rainforests of the sea", coral reefs are of immense scientific interest due to their status as some of the planet's richest marine ecosystems, harbouring millions of species. They play a crucial role in sustaining marine life but are currently under considerable threat...
hese impressive formations are composed of deep-water hard corals, commonly referred to as "white corals" because of their lack of colour, specifically identified as Lophelia pertusa and Madrepora oculata species. The reef also contains black corals, solitary corals, sponges, and other ecologically important species, as well as fossil traces of oysters and ancient corals, the Italian Research Council said. It called them "true geological testimonies of a distant past."
Mission leader Giorgio Castellan said the finding was "exceptional for Italian seas: bioconstructions of this kind, and of such magnitude, had never been observed in the Dohrn Canyon, and are rarely seen elsewhere in our Mediterranean". The discovery will help scientists understand the ecological role of deep coral habitats and their distribution, especially in the context of conservation and restoration efforts, he added.
The undersea research was funded by the EU.
Thanks to davidone (Slashdot reader #12,252) for sharing the article.
hese impressive formations are composed of deep-water hard corals, commonly referred to as "white corals" because of their lack of colour, specifically identified as Lophelia pertusa and Madrepora oculata species. The reef also contains black corals, solitary corals, sponges, and other ecologically important species, as well as fossil traces of oysters and ancient corals, the Italian Research Council said. It called them "true geological testimonies of a distant past."
Mission leader Giorgio Castellan said the finding was "exceptional for Italian seas: bioconstructions of this kind, and of such magnitude, had never been observed in the Dohrn Canyon, and are rarely seen elsewhere in our Mediterranean". The discovery will help scientists understand the ecological role of deep coral habitats and their distribution, especially in the context of conservation and restoration efforts, he added.
The undersea research was funded by the EU.
Thanks to davidone (Slashdot reader #12,252) for sharing the article.
The Toughest Programming Question for High School Students on This Year's CS Exam: Arrays 65
America's nonprofit College Board lets high school students take college-level classes — including a computer programming course that culminates with a 90-minute test. But students did better on questions about If-Then statements than they did on questions about arrays, according to the head of the program. Long-time Slashdot reader theodp explains:
Students exhibited "strong performance on primitive types, Boolean expressions, and If statements; 44% of students earned 7-8 of these 8 points," says program head Trevor Packard. But students were challenged by "questions on Arrays, ArrayLists, and 2D Arrays; 17% of students earned 11-12 of these 12 points."
"The most challenging AP Computer Science A free-response question was #4, the 2D array number puzzle; 19% of students earned 8-9 of the 9 points possible."
You can see that question here. ("You will write the constructor and one method of the SumOrSameGame class... Array elements are initialized with random integers between 1 and 9, inclusive, each with an equal chance of being assigned to each element of puzzle...") Although to be fair, it was the last question on the test — appearing on page 16 — so maybe some students just didn't get to it.
theodp shares a sample Java solution and one in Excel VBA solution (which includes a visual presentation).
There's tests in 38 subjects — but CS and Statistics are the subjects where the highest number of students earned the test's lowest-possible score (1 out of 5). That end of the graph also includes notoriously difficult subjects like Latin, Japanese Language, and Physics.
There's also a table showing scores for the last 23 years, with fewer than 67% of students achieving a passing grade (3+) for the first 11 years. But in 2013 and 2017, more than 67% of students achieved that passsing grade, and the percentage has stayed above that line ever since (except for 2021), vascillating between 67% and 70.4%.
2018: 67.8%
2019: 69.6%
2020: 70.4%
2021: 65.1%
2022: 67.6%
2023: 68.0%
2024: 67.2%
2025: 67.0%
"The most challenging AP Computer Science A free-response question was #4, the 2D array number puzzle; 19% of students earned 8-9 of the 9 points possible."
You can see that question here. ("You will write the constructor and one method of the SumOrSameGame class... Array elements are initialized with random integers between 1 and 9, inclusive, each with an equal chance of being assigned to each element of puzzle...") Although to be fair, it was the last question on the test — appearing on page 16 — so maybe some students just didn't get to it.
theodp shares a sample Java solution and one in Excel VBA solution (which includes a visual presentation).
There's tests in 38 subjects — but CS and Statistics are the subjects where the highest number of students earned the test's lowest-possible score (1 out of 5). That end of the graph also includes notoriously difficult subjects like Latin, Japanese Language, and Physics.
There's also a table showing scores for the last 23 years, with fewer than 67% of students achieving a passing grade (3+) for the first 11 years. But in 2013 and 2017, more than 67% of students achieved that passsing grade, and the percentage has stayed above that line ever since (except for 2021), vascillating between 67% and 70.4%.
2018: 67.8%
2019: 69.6%
2020: 70.4%
2021: 65.1%
2022: 67.6%
2023: 68.0%
2024: 67.2%
2025: 67.0%
Comment Mining+power (Score 1) 25
I guess the logical next step is to capture the heat output as hot water, concentrate the heat somehow (or heat the water a bit more) and use steam to drive a turbine producing electricity. Ye cannae break the laws of physics, but it should be possible for a datacentre to recoup at least part of its electricity costs this way? Essentially a steam-driven power station where the heating element is a bank of GPUs with water running over them.
Comment Hubbard was right (Score 2) 53
It's all about theta waves. Those who have become "clear" and can harmonize the frequency of their theta are known as operating thetans.
Comment Re: Vim is already available for Windows (Score 1) 105
Well I know that you can't argue over personal tastes, and many people like modal editors, but I don't think it is about "educating yourself". Perhaps the opposite is true, as this interview with vi's creator, Bill Joy, explains:
REVIEW: What would you do differently?
JOY: I wish we hadn't used all the keys on the keyboard. I think the interesting thing is that vi is really a mode-based editor. I think as mode-based editors go, it's pretty good. One of the good things about EMACS, though, is its programmability and the modelessness. Those are two ideas which never occurred to me.
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