[-] pedroapero@lemmy.ml 3 points 1 day ago

this new is 3 years old from what I can see

[-] pedroapero@lemmy.ml 3 points 1 week ago* (last edited 1 week ago)

En même temps, avec ce qui se passe aux USA il y a de quoi se poser des questions (en parlant juste du vote populaire).

Sans un système éducatif décent, sans maitrise de l'information, et sans restrictions sur le financement des campagnes, tout part en vrille.

Je ne suis pas de cet avis, mais c'est certainement un système fragile et souvent injuste.

57
submitted 1 week ago by pedroapero@lemmy.ml to c/energy@slrpnk.net

"The world's largest renewable energy and transmission project has received key approval from government officials," reports New Atlas.

Solar power from Australia will be carried 2,672 miles (4,300 kilometers) to Singapore over undersea cables in what's being called "the Australia-Asia Power Link project." Reuters reports that SunCable "aims to produce 6 gigawatts of electricity at a vast solar farm in Northern Australia and ship about a third of that to Singapore via undersea cable."

More from New Atlas:

[The project] will start by constructing a mammoth solar farm in Australia's Northern Territory to transmit around-the-clock clean power to [the Australian city] Darwin, and also export "reliable, cost-competitive renewable energy" to Singapore... with a clean energy generation capacity of up to 10 gigawatts, plus utility scale onsite storage. [The recently-obtained environmental approval] also green lights an 800-km (~500-mile) overhead transmission line between the solar precinct and Murrumujuk near Darwin...

If all of the dominoes line up perfectly, supply of the first clean electricity is estimated to start in the early 2030s. An overview graphic on the project page shows that the eventual end game for the Powell Creek development appears to be the generation of up to 20 GW of peak solar power and have some 36-42 GWh of battery storage on site.

Abstract credit: https://m.slashdot.org/story/434727

[-] pedroapero@lemmy.ml 1 points 3 weeks ago

my favourite is Amazon's:

  • buy without prime (2$ shipping fees)
  • buy with prime (free shipping)

exept you must pay amazon prime 10$ and it's a monthly recuring subscription.

78
submitted 4 weeks ago by pedroapero@lemmy.ml to c/crypto@lemmy.ml

The FBI created a cryptocurrency as part of an investigation into price manipulation in crypto markets, the government revealed on Wednesday. From a report:

The FBI's Ethereum-based token, NexFundAI, was created with the help of "cooperating witnesses." As a result of the investigation, the Securities and Exchange Commission charged three "market makers" and nine people for allegedly engaging in schemes to boost the prices of certain crypto assets. The Department of Justice charged 18 people and entities for "widespread fraud and manipulation" in crypto markets.

The defendants allegedly made false claims about their tokens and executed so-called "wash trades" to create the impression of an active trading market, prosecutors claim. The three market makers -- ZMQuant, CLS Global, and MyTrade -- allegedly wash traded or conspired to wash trade on behalf of NexFundAI, an Ethereum-based token they didn't realize was created by the FBI.

"What the FBI uncovered in this case is essentially a new twist to old-school financial crime," Jodi Cohen, the special agent in charge of the FBI's Boston division, said in a statement. "What we uncovered has resulted in charges against the leadership of four cryptocurrency companies, and four crypto 'market makers' and their employees who are accused of spearheading a sophisticated trading scheme that allegedly bilked honest investors out of millions of dollars."

Abstract credit: https://slashdot.org/story/434115

[-] pedroapero@lemmy.ml 1 points 4 weeks ago

Bitcoin was not «captured» by anyone. The community agreed on not increasing the block size (actually on a slight one-time optimized increase with segwit). Although their use is marginal, there are several Bitcoin-core alternatives (functional node implementations). Both node admins and miners always had a choice. The Bitcoin brand is what the majority of people consider it to be.

Roger Ver is just upsed and can't admit being wrong. Bitcoin's most important feature is decentralization. Without it, it becomes censorable and «permissionfull», just like CBDCs.

Note: I did not (yet?) read the book.

[-] pedroapero@lemmy.ml 5 points 1 month ago

I use Gthumb for simple edits (croping, resizing, rotating...).

[-] pedroapero@lemmy.ml 6 points 1 month ago

I uninstalled it quickly after finding out it was trialware (missing features; popups to pay)

[-] pedroapero@lemmy.ml 11 points 1 month ago

They went as far as producing fake documents to cover up their embezzlement, and got busted...

[-] pedroapero@lemmy.ml 3 points 1 month ago

I'm fine with Rofi. I've used xfce4-appfinder also, it's less minimal, not configurable (good graphical defaults, might be what you want).

[-] pedroapero@lemmy.ml 3 points 1 month ago

I guess if the copyright trolls got their way, there would be no general purpose computing.

Exactly. These kinds of statements are so naive.

[-] pedroapero@lemmy.ml 1 points 1 month ago

Looking at comments outside of Lemmy, I'm appaled by the number of people shocked by this already. Apparently, "just reuse your f-ing bags" is already too hard for a lot of people. We need to start from the easiest.

[-] pedroapero@lemmy.ml 7 points 1 month ago

If the rocket explosion can create a 60 meters wide crater, my guess is it can still at least crack open the fission part and spill the material in the atmosphere.

6
submitted 1 month ago by pedroapero@lemmy.ml to c/crypto@lemmy.ml

"Unlike most governments, Bhutan's BTC does not come from law enforcement asset seizures, but from bitcoin mining operations, which have ramped up dramatically since early 2023," the crypto intelligence firm explained. Crypto intelligence firm Arkham highlighted the Kingdom of Bhutan's bitcoin holdings on social media platform X last week. Bhutan is a small, landlocked kingdom located in the eastern Himalayas, bordered by China to the north and India to the south. The country currently has a population of less than 800,000 people.

We learned last year that Bhutan had been secretly mining bitcoin using its abundant hydroelectric resources since around 2019. The operation, which began when bitcoin was priced at approximately $5,000, aims to harness the country's vast renewable energy reserves to power mining rigs.

Hydroelectricity already accounts for 30% of Bhutan's GDP and powers nearly all of its 800,000 residents. The government claimed last year that mining profits are used to subsidize power and hardware costs. This revelation makes Bhutan one of the few countries globally to run a state-owned bitcoin mine, alongside El Salvador.

At over $800 million in Bitcoin holdings, the reserve accounts for nearly a third of Bhutan's 2022-calculated GDP.

Abstract credit: https://slashdot.org/story/433433

[-] pedroapero@lemmy.ml 6 points 1 month ago

I use BTRFS for the same. Being able to check for and repair silent corruptions is a must (and this is without needing to read the whole drives, only the actual files). I've had a lot of them over the years, including (but not only) because of a cheap USB controller also.

202

In instructions to Google, Judge Rossignoli says that the company must “adopt the necessary technical means to immediately uninstall from Android systems that report IP addresses in the territory of the Argentine Republic (which can be verified by the IP addresses assigned to this country), the application named Magis TV.”

"What was achieved is an unprecedented court order, which is in the process of being analyzed by Google – we understand that they cannot deny it – which is to uninstall, through the Android operating system update, the application on all devices that have an IP address in Argentina,” [prosecuter Alejandro] Musso says.

33
submitted 4 months ago* (last edited 4 months ago) by pedroapero@lemmy.ml to c/energy@slrpnk.net

Carbon in the atmosphere is a major driver of climate change. Now researchers from McGill University have designed a new catalyst for converting carbon dioxide (CO2) into methane -- a cleaner source of energy -- using tiny bits of copper called nanoclusters. While the traditional method of producing methane from fossil fuels introduces more CO2 into the atmosphere, the new process, electrocatalysis, does not. "On sunny days you can use solar power, or when it's a windy day you can use that wind to produce renewable electricity, but as soon as you produce that electricity you need to use it," says Mahdi Salehi, Ph.D. candidate at the Electrocatalysis Lab at McGill University. "But in our case, we can use that renewable but intermittent electricity to store the energy in chemicals like methane."

By using copper nanoclusters, says Salehi, carbon dioxide from the atmosphere can be transformed into methane and once the methane is used, any carbon dioxide released can be captured and "recycled" back into methane. This would create a closed "carbon loop" that does not emit new carbon dioxide into the atmosphere. The research, published recently in the journal Applied Catalysis B: Environment and Energy, was enabled by the Canadian Light Source (CLS) at the University of Saskatchewan (USask). The team plans to continue refining their catalyst to make it more efficient and investigate its large-scale, industrial applications. Their hope is that their findings will open new avenues for producing clean, sustainable energy.

35
submitted 4 months ago* (last edited 4 months ago) by pedroapero@lemmy.ml to c/energy@slrpnk.net

Researchers have devised a way to extract energy from the photosynthesis process of algae, according to an announcement from Concordia University.

Suspended in a specialized solution, the algae forms part of a "micro photosynthetic power cell" that can actually generate enough energy to power low-power devices like Internet of Things (IoT) sensors.

Photosynthesis produces oxygen and electrons. Our model traps the electrons, which allows us to generate electricity," [says Kirankumar Kuruvinashetti, PhD 20, now a Mitacs postdoctoral associate at the University of Calgary.] "So more than being a zero-emission technology, it's a negative carbon emission technology: it absorbs carbon dioxide from the atmosphere and gives you a current. Its only byproduct is water.

[...] Muthukumaran Packirisamy, professor in the Department of Mechanical, Industrial and Aerospace Engineering and the paper's corresponding author, admits the system is not yet able to compete in power generation with others like photovoltaic cells. The maximum possible terminal voltage of a single micro photosynthetic power cell is only 1.0V. But he believes that, with enough research and development, including artificial intelligence-assisted integration technologies, this technology has the potential to be a viable, affordable and clean power source in the future.

It also offers significant manufacturing advantages over other systems, he says. "Our system does not use any of the hazardous gases or microfibres needed for the silicon fabrication technology that photovoltaic cells rely on. Furthermore, disposing of silicon computer chips is not easy. We use biocompatible polymers, so the whole system is easily decomposable and very cheap to manufacture.

In the paper the researchers also described it as a âoemicrobial fuel cellâ...

Abstract credit: https://slashdot.org/story/429671

95

A hacker has gained access to internal tools used by the location tracking company Tile, including one that processes location data requests for law enforcement, and stolen a large amount of customer data, such as their names, physical addresses, email addresses, and phone numbers, 404 Media reports. From the report:

The stolen data itself does not include the location of Tile devices, which are small pieces of hardware users attach to their keys or other items to monitor remotely. But it is still a significant breach that shows how tools intended for internal use by company workers can be accessed and then leveraged by hackers to collect sensitive data en masse. It also shows that this type of company, one which tracks peoples' locations, can become a target for hackers. "Basically I had access to everything," the hacker told 404 Media in an online chat. The hacker says they also demanded payment from Tile but did not receive a response.

Tile sells various tracking devices which can be located through Tile's accompanying app. Life360, another location data focused company, acquired Tile in November 2021. The hacker says they obtained login credentials for a Tile system that they believe belonged to a former Tile employee. One tool specifically says it can be used to "initiate data access, location, or law enforcement requests." Users can then lookup Tile customers by their phone number or another identifier, according to a screenshot of the tool.

Abstract credit: https://slashdot.org/story/429499

84

Starting from 2030, Mastercard will no longer require Europeans to enter their card numbers manually when checking out online -- no matter what platform or device they're using. Mastercard will announce Tuesday in a fireside chat with CNBC that, by 2030, all cards it issues on its network in Europe will be tokenized. In other words, instead of the 16-digit card number we're all accustomed to using for transactions, this will be replaced with a randomly generated "token."

The firm says it's been working with banks, fintechs, merchants and other partners to phase out manual card entry for e-commerce by 2030 in Europe, in favor of a one-click button across all online platforms. This will ensure that consumers' cards are secure against fraud attempts, Mastercard says. Users won't have to keep entering passwords every time they try to make a payment, as Mastercard is introducing passkeys that replace passwords.

35
submitted 5 months ago by pedroapero@lemmy.ml to c/energy@slrpnk.net

The world's largest solar farm, in the desert in northwestern Xinjiang, is now connected to China's grid. The 3.5-gigawatt (GW), 33,000-acre solar farm is outside Urumqi, Xinjiang's capital. The state asset regulator's website cited the Power Construction Corp of China and said it came online on Monday. The solar farm will generate about 6.09 billion kilowatt hours (kWh) of electricity annually. Assuming an EV consumes about 3,000 kWh per year, 6.09 billion kWh could power 2.03 million EVs annually.

The world's largest solar farm in Xinjiang is part of China's megabase project, a plan to install 455 GW of wind and solar. The megabase projects are sited in sparsely populated, resource-rich areas and send their generated energy to major urban centers, such as on China's eastern seaboard. China now boasts the three largest solar farms in the world by capacity. The Ningxia Tenggeli and Golmud Wutumeiren solar farms, each with a capacity of 3 MW, are already online.

172
submitted 5 months ago by pedroapero@lemmy.ml to c/privacy@lemmy.ml

Visa is rolling out new technology that will allow the payments giant to share more information about customers' preferences [non-paywalled source] based on their shopping history with retailers as it seeks to remain a top player in the competitive e-commerce space. From a report:

The data will be shared via the payments giant's proprietary "tokens," which provide an added layer of security between a consumer's bank information and a merchant. Shopping inclinations and other information based on past transactions -- such as preferred categories, like movies or golf -- will be shared via token with retailers with the consent of consumers.

"It's almost entirely blind to almost all consumers," Visa Chief Executive Officer Ryan McInerney said in an interview of the company's token technology. "They just know their payments work better." The sharing of shopping data via token is one of a handful of innovations Visa unveiled at a conference in San Francisco, where it's based. Visa, one of the largest e-commerce technology companies in the world, is finding itself increasingly fending off competitors seeking larger slices of the fees merchants must pay to carry out consumer transactions.

Abstract credit: https://slashdot.org/story/428471

1
submitted 6 months ago by pedroapero@lemmy.ml to c/space@lemmy.world

Last week, NASA announced it is working with a technology development company on a new propulsion system that could transport humans to Mars in only two months -- down from the current nine month journey required to reach the Red Planet. Gizmodo reports:

NASA's Innovative Advanced Concepts (NIAC) program recently selected six promising projects for additional funding and development, allowing them to graduate to the second stage of development. The new "science fiction-like concepts," as described by John Nelson, NIAC program executive at NASA, include a lunar railway system and fluid-based telescopes, as well as a pulsed plasma rocket.

The potentially groundbreaking propulsion system is being developed by Arizona-based Howe Industries. To reach high velocities within a shorter period of time, the pulsed plasma rocket would use nuclear fission -- the release of energy from atoms splitting apart -- to generate packets of plasma for thrust. It would essentially produce a controlled jet of plasma to help propel the rocket through space. Using the new propulsion system, and in terms of thrust, the rocket could potentially generate up to 22,481 pounds of force (100,000 Newtons) with a specific impulse (Isp) of 5,000 seconds, for remarkably high fuel efficiency. [...]

The pulsed plasma rocket would also be capable of carrying much heavier spacecraft, which can be then equipped with shielding against galactic cosmic rays for the crew on board. Phase 2 of NIAC is focused on assessing the neutronics of the system (how the motion of the spacecraft interacts with the plasma), designing the spacecraft, power system, and necessary subsystems, analyzing the magnetic nozzle capabilities, and determining trajectories and benefits of the pulsed plasma rocket, according to NASA.

Abstract credit: https://slashdot.org/story/428225

83
submitted 6 months ago by pedroapero@lemmy.ml to c/fediverse@lemmy.ml

The blog Its FOSS has 15,000 followers for its Mastodon account — which they think is causing problems:

When you share a link on Mastodon, a link preview is generated for it, right? With Mastodon being a federated platform (a part of the Fediverse), the request to generate a link preview is not generated by just one Mastodon instance. There are many instances connected to it who also initiate requests for the content almost immediately. And, this "fediverse effect" increases the load on the website's server in a big way.

Sure, some websites may not get overwhelmed with the requests, but Mastodon does generate numerous hits, increasing the load on the server. Especially, if the link reaches a profile with more followers (and a broader network of instances)... We tried it on our Mastodon profile, and every time we shared a link, we were able to successfully make our website unresponsive or slow to load.

It's Foss blog says they found three GitHub issues about the same problem — one from 2017, and two more from 2023. And other blogs also reported the same issue over a year ago — including software developer Michael Nordmeyer and legendary Netscape programmer Jamie Zawinski.

And back in 2022, security engineer Chris Partridge wrote:

[A] single roughly ~3KB POST to Mastodon caused servers to pull a bit of HTML and... an image. In total, 114.7 MB of data was requested from my site in just under five minutes — making for a traffic amplification of 36704:1. [Not counting the image.]

Its Foss reports Mastodon's official position that the issue has been "moved as a milestone for a future 4.4.0 release. As things stand now, the 4.4.0 release could take a year or more (who knows?)."

They also state their opinion that the issue "should have been prioritized for a faster fix... Don't you think as a community-powered, open-source project, it should be possible to attend to a long-standing bug, as serious as this one?"

Abstract credit: https://slashdot.org/story/428030

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pedroapero

joined 1 year ago