Hello, I've been enjoying Paperspace instances (A4000 these days) for a while. However, since a week, I had catastrophic storage performances. I suspect they started virtualizing Windows (since they announced dropping support for new users).

Can someone suggest an alternative?

Here are my criterias:

• support for Windows templates
• no upfront cost (210€ upfront on Akamai, 100€ for OVH, seriously for 0.8$/h instances!)
• available in EU
• GPU models appropriate for gaming
• affordable prices, I'm currently paying 0.8$/h + 11$ for monthly storage (500GB SSD + one snapshot)

You can now subscribe to points of interests or reviewers via ActivityPub!

If you don't know Mangrove, it's an open database of reviews provided by the Open Reviews Association. You can create reviews on mangrove.reviews or on MapComplete (at least) with no registration required (you get an account key for reputation).

Besides mangrove.reviews and Mangrove Viewer, Mangrove is now integrated into CoMaps for visualization!

Commonwealth Fusion has published five peer-reviewed papers laying out the physics case for ARC, its planned 400 MW fusion power plant, which would follow the company's smaller SPARC tokamak now under construction. The papers suggest ARC could produce more energy than it consumes using high-temperature superconducting magnets, molten-salt heat extraction, and 15-minute fusion pulses. Ars Technica reports:

ARC will be a tokamak that hosts fusion between hydrogen's two heavier isotopes, deuterium and tritium. This reaction results in a helium nucleus and releases a neutron and radiation. The helium transfers heat to the plasma, maintaining the conditions needed for fusion, but it is otherwise a waste product, referred to as "ash" in the fusion context. The neutron and radiation, however, are put to use. Part of that use is simply imparting energy into a blanket of molten salt that surrounds the fusion chamber. That energy, in the form of heat, will be used to drive a turbine that produces the electricity. The molten salt includes lithium ions; when one lithium isotope absorbs a neutron, it decays into more helium, plus tritium that can be used as fuel for the reactor. There are isotopes present that will also release additional neutrons, allowing this process to generate sufficient fuel.

Overall, the present design of ARC is expected to produce about 1.13 GW of fusion power, with 500 MW of that extracted as electricity. Some of that (100 MW) will be needed to power the plant's operations, leaving 400 MW to be sent to the grid. The rest of the energy is either kept in the tokamak to maintain the fusion reactions or lost due to inefficiencies in the heat and energy transfer of the system. There's a lot of uncertainty about these numbers; the 1.13 GW is just the center of a range of potential values running from 900 MW to 1.3 GW, so the 400 MW output may need to be adjusted up or down accordingly.

Some of that 400 MW comes during periods where fusion is not occurring. The nuclear reactions will occur within 15-minute-long periods that will be interspersed with one minute resets. The resets are meant to be kept short enough that nothing has much of a chance to cool down before it gets heated up again -- thermal inertia will let it continue generating power. That will be one of the key differentiators with SPARC, which doesn't have the heat extraction needed to maintain stable fusion for these long time periods, and so can't maintain the near constant temperatures needed for reliable power generation.

It's inevitable that parts of the device will be exposed to radiation and perhaps fusion plasma. The inner walls of the reactor will be shielded by tungsten, which will limit erosion by the conditions. Meanwhile, the vacuum vessel is designed to be replaced every one to two years. The papers note that this flexibility will allow them to make some design changes even after ARC is built. To enable this, the whole tokamak is meant to split in half for maintenance.

Abstract credit: https://slashdot.org/story/455446/

I heard about this in F-Droid's latest blog post.
It is based on the Bramble protocol and is compatible with Briar.
It removed mesh-networking features of Briar and added a couple new ones:

• voice messaging
• ML-KEM (post-quantum cryptography)
• disappearing messages

More technical details are shared on their blog.

Sources are on Github https://github.com/zerionproject/Zerion

After nearly 20 years on the platform, The Electronic Frontier Foundation (EFF) says it is leaving X. "This isn't a decision we made lightly, but it might be overdue," the digital rights group said. "The math hasn't worked out for a while now." From the report:

We posted to Twitter (now known as X) five to ten times a day in 2018. Those tweets garnered somewhere between 50 and 100 million impressions per month. By 2024, our 2,500 X posts generated around 2 million impressions each month. Last year, our 1,500 posts earned roughly 13 million impressions for the entire year. To put it bluntly, an X post today receives less than 3% of the views a single tweet delivered seven years ago. [...]

When you go online, your rights should go with you. X is no longer where the fight is happening. The platform Musk took over was imperfect but impactful. What exists today is something else: diminished, and increasingly de minimis.

EFF takes on big fights, and we win. We do that by putting our time, skills, and our members' support where they will effect the most change. Right now, that means Bluesky, Mastodon, LinkedIn, Instagram, TikTok, Facebook, YouTube, and eff.org. We hope you follow us there and keep supporting the work we do. Our work protecting digital rights is needed more than ever before, and we're here to help you take back control.

Abstract credit: https://slashdot.org/story/453946/outstanding

The UK's science minister is announcing details of a five-year, £2.5 billion investment in nuclear fusion, reports the Times of London, "including building one of the world's first prototype fusion power plants in Nottinghamshire and developing a UK sector projected to employ 10,000 people by 2030."

Despite the potentially transformative impact of fusion, which in theory could provide limitless clean energy and create a £12 trillion global market, no country has managed to use this fledgling technology to generate useable electricity... [T]he UK is backing a spherical tokamak design... investing an initial £1.3 billion into a prototype fusion power plant called Step (Spherical Tokamak for Energy Production) on the site of a decommissioned coal-fired power station at West Burton in Nottinghamshire. Paul Methven, chief executive of the government-owned UK Industrial Fusion Solutions, which is delivering the Step project, said the aim is to get the reactor operating early in the 2040s. "It's quite an aggressive programme," he said. "We need to show that we can achieve genuine 'wall socket' energy — which has not been done before."

On Monday, [science minister] Vallance will also announce £180 million for a facility in Culham, Oxfordshire, to manufacture tritium fuel and £50 million for training 2,000 scientists and engineers in fusion-related disciplines. The government is also buying a £45 million fusion-dedicated AI supercomputer called Sunrise to model plasma physics. Scientists at the UK Atomic Energy Authority last year developed an AI model that can rapidly simulate how the ultra-hot fuel in a fusion power plant will behave, cutting calculations that previously took days down to seconds...

Vallance will also announce new support and collaboration for the many fusion, robotics, engineering and AI start-ups working in Britain, to develop a strong supply chain for a new fusion sector. One of those companies, Tokamak Energy, which spun out from the UK Atomic Energy Authority in 2009, has already built a smaller reactor that has informed the Step design. In March 2022, it became the first private organisation in the world to surpass 100 million degrees Celsius in its reactor.

Abstract credit: https://slashdot.org/story/453340

iocaine, a MIT-licensed nonsense generator, is designed to make scraped text less useful by poisoning it with fake data. The hope is to make running scraperbots not economically viable, and thereby address the problem at its root instead of playing an eternal game of Whac-A-Mole.

Friday 72-year-old Richard Stallman made a two-hour-and-20-minutes appearance at the Georgia Institute of Technology, talking about everything from AI and connected cars to smartphones, age verfication laws, and his favorite Linux distro. But early on, Stallman also told the audience how "I despise DRM...I don't want any copy of anything with DRM. Whatever it is, I never want it so badly that I would bow down to DRM." (So he doesn't use Spotify or Netflix...)

This led to an interesting moment when someone asked him later if we have an ethical obligation to avoid piracy.. First Stallman swapped in his preferred phrase, "forbidden sharing"...

I won't use the word piracy to refer to sharing. Sharing is good and it should be lawful. Those laws are wrong. Copyright as it is now is an injustice.

Stallman said "I don't hesitate to share copies of anything," but added that "I don't have copies of non-free software, because I'm disgusted by it." After a pause, he added this. "Just because there is a law to to give some people unjust power, that doesn't mean breaking that law becomes wrong....

Dividing people by forbidding them to help each other is nasty.

And later Stallman was asked how he watches movies, if he's opposed to DRM-heavy sites like Netflix, and the DRM in Blu-ray discs? "The only way I can see a movie is if I get a file — you know, like an MP4 file or MKV file. And I would get that, I suppose, by copying from somebody else."

Sharing is good. Stopping people from sharing is evil.

Abstract credit: https://slashdot.org/story/451774

German IT news outlet Heise reports [German-language article] that the northern most state Schleswig-Holstein has, after half a year of frantic data migration work, successfully migrated their MS Outlook mail and groupware setups to a FOSS solution using Open-Xchange and Thunderbird.

Stakeholders consider the move a major success and milestone to digital sovereignty and saving costs. This move makes the state a pioneer in Germany. As a next major step Schleswig-Holstein plans to migrate their authorities and administrations desktop PCs to Linux.

The state has achieved "digital sovereignty by ditching Microsoft for open source solutions". European nations "have generally been more progressive in adopting open source solutions for government operations."

The migration affected around 30,000 employees across various government departments. This includes the State Chancellery, ministries, judiciary, state police, and other state authorities. Over 40,000 mailboxes containing more than 100 million emails and calendar entries were moved to the new system. The state has adopted Open-Xchange as its email server solution and Thunderbird as the email client...

[Digitization Minister Dirk Schrödter] emphasized that "We are real pioneers. We can't fall back on the experience of others -, there is hardly a comparable project of this magnitude anywhere in the world."

Abstract credit: https://slashdot.org/story/447760/outstanding

"California's biggest electric utilities pulled off a record-breaking test..." reports Semafor, "during the 7pm-9pm window that is typically its time of peak demand as people come home from work."

Pacific Gas & Electric and other top California power companies switched on residential batteries in more than 100,000 homes and drew power from them into the broader statewide grid. The purpose of the test — the largest ever in the state, which has by far the most home battery capacity in the U.S. — was to see just how much power is really there for the utility to tap, and to ensure it could be switched on, effectively running the grid in reverse, without causing a crash.

The result, which the research firm Brattle published this week, was 535 megawatts, equal to adding a big hydro dam or a half-sized nuclear reactor at a fraction of the cost. "Four years ago this capacity didn't even exist," Kendrick Li, PG&E's director of clean energy programs, told Semafor. "Now it's a really attractive option for us. It would be silly not to harness what our customers have installed...." Last week's test proved that in times of peak demand, PG&E can lean on its customers' batteries rather than turn on a gas-fired peaker plant or risk a blackout, Li said.

Virtual power plants (VPPs) also facilitate the addition of more solar energy on the grid: At the moment, California has so much solar generation at peak hours that it can push the wholesale power price close to or even below zero, a headache for grid managers and a disincentive for renewable project developers. The careful manipulation of networked residential batteries smooths out the timing disparity between peak sunshine at midday and peak demand in the evening, allowing the excess to be soaked up and redeployed when it's actually needed, and making power cheaper for everyone. The expanded use of VPPs shouldn't be noticeable to battery owners, Li said, except for the money back on their power bill; nothing about the process prevents them from running their AC or dishwasher while their battery is being tapped. The network can also run in reverse, with the utility taking excess power from the grid at times of low demand and sending it into home batteries for storage.

California could easily reach over a gigawatt of VPP capacity within five years, Li said. Nationwide, a Department of Energy study during the Biden administration forecast that VPP capacity could reach up to 160 gigawatts by 2030, essentially negating the need for dozens of new fossil fuel power plants, with no emissions and at a far lower cost. In 2024, utilities in 34 states moved to initiate or expand VPP networks, according to the advocacy group VP3.

Even with a reduction in federal credits, virtual power plants "offer a way for residential solar-plus-storage systems to remain economically attractive for homeowners — who get paid for the withdrawn power," the article points out — and "a way to make better use of clean energy resources that have already been built."

Sunrun's distributed battery fleet "delivered more than two-thirds of the energy," notes Electrek, "In total, the event pumped an average of 535 megawatts (MW) onto the grid — enough to power over half of San Francisco... This isn't a one-off. Sunrun's fleet already helped drop peak demand earlier this summer, delivering 325 MW during a similar event on June 24.

"The company compensates customers up to $150 per battery per season for participating."

Abstract credit: https://slashdot.org/story/445384

Heise, a German IT news publisher, reports that the German state of Brandenburg is getting the world's tallest wind turbine, with an overall height of 300 meters (approximately 365 meters including rotor blades), designed to capture so-called third-level winds at higher altitudes. The article also includes a short 3D animation illustrating the construction and its size relative to standard modern wind turbines.

The wind turbine uses a dual-framework base instead of a traditional closed tower to access stronger high-altitude winds, aiming to match offshore energy output while keeping onshore operating costs.

According to Heise, the prototype could lead to the installation of up to 1,000 units across Germany -- fitting seamlessly between existing wind farms without needing extra land.

Abstract credit: https://hardware.slashdot.org/story/25/07/16/2120247/germany-is-building-the-worlds-tallest-wind-turbine

publication croisée depuis : https://lemmy.bestiver.se/post/410366

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