A German nuclear fusion startup called Proxima Fusion has unveiled its "Stellaris" fusion power plant designed to operate reliably and continuously without the instabilities of tokamaks. It's backed by $65 million in funding, with plans to build a fully operational fusion reactor by 2031. TechCrunch reports:

Tokamaks and stellarators are types of fusion reactors that use electromagnets to contain fusion plasma. Tokamaks rely on external magnets and an induced plasma current but are known for instability. Stellarators, by contrast, use only external magnets, which, in theory, enable better stability and continuous operation. However, according to Dr. Francesco Sciortino, co-founder and CEO of Proxima Fusion, Proxima's "Stellaris" design is the first peer-reviewed fusion power plant concept that demonstrates it can operate reliably and continuously, without the instabiliti

French journal Le Monde is sharing its articles via RSS feeds (and longer via Tweeter).

Check it out (french content): https://www.lemonde.fr/actualite-medias/article/2019/08/12/les-flux-rss-du-monde-fr_5498778_3236.html

The US Department of Justice (DOJ) has been authorized to sell approximately 69,370 Bitcoin seized in connection with the Silk Road darknet marketplace, a haul currently valued at around $6.5 billion, DB News reported Wednesday. The decision is set to end a years-long legal dispute over the BTC stash's ownership. On December 30, a federal judge ruled in favor of the DOJ's request to liquidate the crypto assets, the report said. Battle Born Investments, which had asserted a claim to the Bitcoin stash through a bankruptcy estate, ultimately failed in its bid to delay the sale.

As noted, the group had pursued a Freedom of Information Act (FOIA) request seeking the identity of "Individual X," who initially surrendered Bitcoin, but the effort also proved unsuccessful. Battle Born's legal counsel criticized the DOJ's handling of the case, alleging the department employed "procedural trickery" in its use of civil asset forfeiture to avo

cross-posted from: https://lemmy.world/post/23454650

Summary

France’s Flamanville 3 nuclear reactor, its most powerful at 1,600 MW, was connected to the grid on December 21 after 17 years of construction plagued by delays and budget overruns.

The European Pressurized Reactor (EPR), designed to boost nuclear energy post-Chernobyl, is 12 years behind schedule and cost €13.2 billion, quadruple initial estimates.

President Macron hailed the launch as a key step for low-carbon energy and energy security.

Nuclear power, which supplies 60% of France’s electricity, is central to Macron’s plan for a “nuclear renaissance.”

The world's first nuclear-powered battery — a diamond with an embedded radioactive isotope — could power small devices for thousands of years, according to scientists at the UK's University of Bristol.

The diamond battery harvests fast-moving electrons excited by radiation, similar to how solar power uses photovoltaic cells to convert photons into electricity, the scientists said.

Scientists from the same university first demonstrated a prototype diamond battery — which used nickel-63 as the radioactive source — in 2017. In the new project, the team developed a battery made of carbon-14 radioactive isotopes embedded in manufactured diamonds. The researchers chose carbon-14 as the source material because it emits short-range radiation, which is quickly absorbed by any solid material — meaning there are no concerns about harm from the radiation. Although carbon-14 would be dangerous to ingest or touc

Legislation was introduced in the Texas House of Representatives on Thursday to establish a strategic bitcoin reserve, which could serve as a proving ground for the U.S. Treasury. The proposed bill would enable the state to start building a strategic bitcoin reserve by accepting taxes, fees and donations in bitcoin that would be held for a minimum of five years, Republican state Rep. Giovanni Capriglione announced on an X Spaces event Thursday.

The Texas bill aims to provide a way to strengthen the state's fiscal stability and establish it as a leader in bitcoin innovation, according to the Satoshi Action Fund, a nonprofit bitcoin advocacy group that worked with Capriglione on the bill. "Probably the biggest enemy of our investments is inflation," Capriglione said. "A strategic bitcoin reserve, investing in bitcoin, would be a win-win for the state." "I just filed the bill ... entitled 'An act relating to the establishment of a bitcoin reserve within

The cost of cleaning up the U.K.'s largest nuclear site, "is expected to spiral to £136 billion" (about $176 billion), according to the Guardian, creating tension with the country's public-spending watchdog.

Projects to fix the state-owned buildings with hazardous and radioactive material "are running years late and over budget," the Guardian notes, with the National Audit Office suggesting spending at the Sellafield site has risen to more than £2.7 billion a year ($3.49 billion).

Europe's most hazardous industrial site has previously been described by a former UK secretary of state as a "bottomless pit of hell, money and despair". The Guardian's Nuclear Leaks investigation in late 2023 revealed a string of cybersecurity problems at the site, as well as issues with its safety and workplace culture. The National Au

"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

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 essen

"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 8

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.

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 "r

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

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.

In a new blog post, Ethereum co-founder Vitalik Buterin has shared his thoughts on three issues core to Ethereum's decentralization: MEV, liquid staking, and the hardware requirements of nodes. The Block reports:

In his post, published on May 17, Buterin first addresses the issue of MEV, or the financial gain that sophisticated node operators can capture by reordering the transactions within a block. Buterin characterizes the two approaches to MEV as "minimization" (reducing MEV through smart protocol design, such as CowSwap) and "quarantining" (attempting to reduce or eliminate MEV altogether through in-protocol techniques). While MEV quarantining seems like an alluring option, Buterin notes that the prospect comes with some centralization risks. "If builders have the power to exclude transactions from a block entirely, there are attacks that can quite easily arise," Buterin noted. However, Buterin championed the

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 kno

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 sp

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 — on

cross-posted from: https://lemmy.smeargle.fans/post/145396

HN Discussion

An anonymous reader shared this report from CNN:

On a slice of the ocean front in west Singapore, a startup is building a plant to turn carbon dioxide from air and seawater into the same material as seashells, in a process that will also produce "green" hydrogen — a much-hyped clean fuel.

The cluster of low-slung buildings starting to take shape in Tuas will become the "world's largest" ocean-based carbon dioxide removal plant when completed later this year, according to Equatic, the startup behind it that was spun out of the University of California at Los Angeles. The idea is that the plant will pull water from the ocean, zap it with an electric current and run air through it to produce a series of chemical reactions to trap and store carbon dioxide as minerals, which can b