Caffeine Makes Fuel Cells More Efficient, Cuts Cost of Energy Storage

Dan Robinson reports via The Register: Adding caffeine can enhance the efficiency of fuel cells, reducing the need for platinum in electrodes and significantly reducing the cost of making them, according to researchers in Japan. […] The study, published in the journal Communications Chemistry, concerns the catalysis process at the cathode of a fuel cell and making this reaction more efficient. Fuel cells work somewhat like batteries. They generate power by converting the chemical energy of a fuel (or electrolyte) and an oxidizing agent into electricity. This is typically hydrogen as a fuel and oxygen as an oxidizer. Unlike batteries with limited lifespans, fuel cells can generate power as long as fuel is supplied. The hydrogen undergoes oxidation at the anode, producing hydrogen ions and electrons. The ions move through the hydrogen electrolyte to the cathode, while the electrons flow through an external circuit, generating electricity. At the cathode, oxygen combines with the hydrogen ions and electrons, resulting in water as a by-product. However, this water impacts the performance of the fuel cell, reacting with the platinum (Pt) to form a layer of platinum hydroxide (PtOH) on the electrode and interfering with the catalysis of the oxygen reduction reaction (ORR), according to the researchers.

To maintain efficient operation, fuel cells require a high Pt loading (greater platinum content), which significantly ups the costs of fuel cells. A quick look online found market prices for platinum of $29.98 per gram, or $932.61 per ounce, at the time of writing. The researchers found that adding caffeine can improve the ORR activity of platinum electrodes 11 fold, making the reaction more efficient. If you are wondering (as we were) how they came to be experimenting with this, the paper explains that modifying electrodes with hydrophobic material is known to be an effective method for enhancing ORR. Caffeine is less toxic than other hydrophobic substances, and it activates the hydrogen evolution and oxidation reactions of Pt nanoparticles and caffeine doped carbons. Got that?

Chiba University’s work was led by Professor Nagahiro Hoshi at the Department of Applied Chemistry and Biotechnology. He explained that the researchers found a notable improvement in the electrode’s ORR activity with an increase in caffeine concentration in the electrolyte. This forms a thin layer on the electrode’s surface, effectively preventing the formation of PtOH, but the effect depends on the orientation of the platinum atoms on the electrode’s surface. The paper refers to these as Pt(100), Pt(110) and Pt(111), with the latter two showing increased ORR activity, while there was no noticeable effect with Pt(100). The researchers do not explain if this latter effect might be a problem, but instead claim that their discovery has the potential to improve the designs of fuel cells and lead to more widespread adoption.

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Trying Out Microsoft’s Pre-Release OS/2 2.0

Last month, the only known surviving copy of 32-bit OS/2 from Microsoft was purchased for $650. “Now, two of the internet’s experts in getting early PC operating systems running today have managed to fire it up, and you can see the results,” reports The Register. From the report: Why such interest in this nearly third-of-a-century old, unreleased OS? Because this is the way the PC industry very nearly went. This SDK came out in June 1990, just one month after Windows 3.0. If 32-bit OS/2 had launched as planned, Windows 3 would have been the last version before it was absorbed into OS/2 and disappeared. There would never have been any 32-bit versions: no Windows NT, no Windows 95; no Explorer, no Start menu or taskbars. That, in turn, might well have killed off Apple as well. No iPod, no iPhone, no fondleslabs. Twenty-first century computers would be unimaginably different. The surprise here is that we can see a glimpse of this world that never happened. The discovery of this pre-release OS shows how very nearly ready it was in 1990. IBM didn’t release its solo version until April 1992, the same month as Windows 3.1 — but now, we can see it was nearly ready two years earlier.

That’s why Michal Necasek of the OS/2 Museum called his look The Future That Never Was. He uncovered a couple of significant bugs, but more impressively, he found workarounds for both, and got both features working fine. OS/2 2 could run multiple DOS VMs at once, but in the preview, they wouldn’t open — due to use of an undocumented instruction which Intel did implement in the Pentium MMX and later processors. Secondly, the bundled network client wouldn’t install — but removing a single file got that working fine. That alone is a significant difference between Microsoft’s OS/2 2.0 and IBM’s version: Big Blue didn’t include networking until Warp Connect 3 in 1995.

His verdict: “The 6.78 build of OS/2 2.0 feels surprisingly stable and complete. The cover letter that came with the SDK stressed that Microsoft developers had been using the OS/2 pre-release for day-to-day work.” Over at Virtually Fun, Neozeed also took an actual look at Microsoft OS/2 2.0, carefully recreating that screenshot from PC Magazine in May 1990. He even managed to get some Windows 2 programs running, although this preview release did not yet have a Windows subsystem. On his Internet Archive page, he has disk images and downloadable virtual machines so that you can run this yourself under VMware or 86Box.

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Cognition Emerges From Stealth To Launch AI Software Engineer ‘Devin’

Longtime Slashdot reader ahbond shares a report from VentureBeat: Today, Cognition, a recently formed AI startup backed by Peter Thiel’s Founders Fund and tech industry leaders including former Twitter executive Elad Gil and Doordash co-founder Tony Xu, announced a fully autonomous AI software engineer called “Devin.” While there are multiple coding assistants out there, including the famous Github Copilot, Devin is said to stand out from the crowd with its ability to handle entire development projects end-to-end, right from writing the code and fixing the bugs associated with it to final execution. This is the first offering of this kind and even capable of handling projects on Upwork, the startup has demonstrated. […]

In a blog post today on Cognition’s website, Scott Wu, the founder and CEO of Cognition and an award-winning sports coder, explained Devin can access common developer tools, including its own shell, code editor and browser, within a sandboxed compute environment to plan and execute complex engineering tasks requiring thousands of decisions. The human user simply types a natural language prompt into Devin’s chatbot style interface, and the AI software engineer takes it from there, developing a detailed, step-by-step plan to tackle the problem. It then begins the project using its developer tools, just like how a human would use them, writing its own code, fixing issues, testing and reporting on its progress in real-time, allowing the user to keep an eye on everything as it works. […]

According to demos shared by Wu, Devin is capable of handling a range of tasks in its current form. This includes common engineering projects like deploying and improving apps/websites end-to-end and finding and fixing bugs in codebases to more complex things like setting up fine-tuning for a large language model using the link to a research repository on GitHub or learning how to use unfamiliar technologies. In one case, it learned from a blog post how to run the code to produce images with concealed messages. Meanwhile, in another, it handled an Upwork project to run a computer vision model by writing and debugging the code for it. In the SWE-bench test, which challenges AI assistants with GitHub issues from real-world open-source projects, the AI software engineer was able to correctly resolve 13.86% of the cases end-to-end — without any assistance from humans. In comparison, Claude 2 could resolve just 4.80% while SWE-Llama-13b and GPT-4 could handle 3.97% and 1.74% of the issues, respectively. All these models even required assistance, where they were told which file had to be fixed. Currently, Devin is available only to a select few customers. Bloomberg journalist Ashlee Vance wrote a piece about his experience using it here.

“The Doom of Man is at hand,” captions Slashdot reader ahbond. “It will start with the low-hanging Jira tickets, and in a year or two, able to handle 99% of them. In the short term, software engineers may become like bot farmers, herding 10-1000 bots writing code, etc. Welcome to the future.”

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Modern Workplace Tech Linked To Lower Employee Well-Being, Study Finds

According to a new study from the Institute for the Future of Work, contemporary technology often has a negative impact on workers’ quality of life. The think tank surveyed over 6,000 people to learn how four categories of workplace technologies affected their wellbeing. TechSpot reports the findings: The study found that increased exposure to three of the categories tended to worsen workers’ mental state and health. The three areas that negatively impact people most are wearable and remote sensing technologies, which covers CCTV cameras and wearable trackers; robotics, consisting of automated machines, self-driving vehicles, and other equipment; and, unsurprisingly, technologies relating to AI and ML, which includes everything from decision management to biometrics. Only one of the categories was found to be beneficial to employees, and it’s one that has been around for decades: ICT tech such as laptops, tablets, phones, and real-time messaging tools.

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Pentagon Scraps $2.5 Billion Grant To Intel

According to Bloomberg (paywalled), the Pentagon has reportedly scrapped its plan to allocate $2.5 billion in grants to Intel, causing the firm’s stock to slip in extended-hours trading. From a report: The decision now leaves the U.S. Commerce Department, which is responsible for doling out the funds from the U.S. CHIPs and Science Act, to make up the shortfall, the news outlet said. The Commerce Dept. was initially only supposed to cover $1B of the $3.5B that Intel is slated to receive for advanced defense and intelligence-related semiconductors. The deal is slated to position Intel as the dedicated supplier for processors used for military and intelligence applications and could result in a Secure Enclave inside Intel’s chip factory, the news outlet said. With the Pentagon reportedly pulling out, it could alter how much Intel and other companies receive from the CHIPs Act, the news outlet said.

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Binance Executives Were Arrested In Nigeria For Allegedly Destabilizing Its Currency

Two top executives from the crypto exchange Binance have been arrested in Nigeria for allegedly destabilizing the national currency. Quartz reports: According to a Wall Street Journal report, Tigran Gambaryan, head of financial-crime compliance at Binance who previously worked at the U.S. Internal Revenue Service (IRS), and Nadeem Anjarwalla, a British-Kenyan national and Binance’s regional manager for Africa, have been held against their will for the past two weeks in the country. As per reports, Nigerian government officials invited Binance executives to discuss an ongoing dispute about the world’s largest crypto exchange allegedly driving down the value of their national currency. Gambaryan and Anjarwalla arrived in Nigeria on February 25th; after their meeting with government officials, both were taken to their hotels. Later, they were instructed to pack their belongings and move to a guesthouse run by Nigeria’s National Security Agency, as stated by their families, per reports.

The Nigerian government has accused Binance of exacerbating the country’s foreign exchange challenges through rate manipulation for profit. The authorities have also accused the crypto exchange of illegal operations and have restricted access to the company’s website. There are also reports that Nigeria sought a $10 billion penalty from Binance for processing around $26 billion in untraceable funds in the country. […] The reason why and how Nigeria’s economic crisis is linked with Binance is yet to be found out. Binance is hoping to resolve the matter soon, according to CoinDesk. The report notes that Nigeria is experiencing its worst economic crisis in recent years due to inflation and the devaluation of their currency, the naira.

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Google Paid $10 Million In Bug Bounty Rewards Last Year

Bill Toulas reports via BleepingComputer: Google awarded $10 million to 632 researchers from 68 countries in 2023 for finding and responsibly reporting security flaws in the company’s products and services. Though this is lower than the $12 million Google’s Vulnerability Reward Program paid to researchers in 2022, the amount is still significant, showcasing a high level of community participation in Google’s security efforts.

The highest reward for a vulnerability report in 2023 was $113,337, while the total tally since the program’s launch in 2010 has reached $59 million. For Android, the world’s most popular and widely used mobile operating system, the program awarded over $3.4 million. Google also increased the maximum reward amount for critical vulnerabilities concerning Android to $15,000, driving increased community reports. During security conferences like ESCAL8 and hardwea.io, Google awarded $70,000 for 20 critical discoveries in Wear OS and Android Automotive OS and another $116,000 for 50 reports concerning issues in Nest, Fitbit, and Wearables. Google’s other big software project, the Chrome browser, was the subject of 359 security bug reports that paid out a total of $2.1 million.

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Former Activision CEO Bobby Kotick Considering Buying TikTok

Over 15,000 Roku Accounts Sold To Buy Streaming Subscriptions, Devices

Over 15,000 Roku customers were hacked and used to make fraudulent purchases of hardware and streaming subscriptions. According to BleepingComputer, the threat actors were “selling the stolen accounts for as little as $0.50 per account, allowing purchasers to use stored credit cards to make illegal purchases.” From the report: On Friday, Roku first disclosed the data breach, warning that 15,363 customer accounts were hacked in a credential stuffing attack. A credential stuffing attack is when threat actors collect credentials exposed in data breaches and then attempt to use them to log in to other sites, in this case, Roku.com. The company says that once an account was breached, it allowed threat actors to change the information on the account, including passwords, email addresses, and shipping addresses. This effectively locked a user out of the account, allowing the threat actors to make purchases using stored credit card information without the legitimate account holder receiving order confirmation emails.

“It appears likely that the same username/password combinations had been used as login information for such third-party services as well as certain individual Roku accounts,” reads the data breach notice. “As a result, unauthorized actors were able to obtain login information from third-party sources and then use it to access certain individual Roku accounts. “After gaining access, they then changed the Roku login information for the affected individual Roku accounts, and, in a limited number of cases, attempted to purchase streaming subscriptions.” Roku says that it secured the impacted accounts and forced a password reset upon detecting the incident. Additionally, the platform’s security team investigated for any charges due to unauthorized purchases performed by the hackers and took steps to cancel the relevant subscriptions and refund the account holders.

A researcher told BleepingComputer last week that the threat actors have been using a Roku config to perform credential stuffing attacks for months, bypassing brute force attack protections and captchas by using specific URLs and rotating through lists of proxy servers. Successfully hacked accounts are then sold on stolen account marketplaces for as little as 50 cents, as seen below where 439 accounts are being sold. The seller of these accounts provides information on how to change information on the account to make fraudulent purchases. Those who purchase the stolen accounts hijack them with their own information and use stored credit cards to purchase cameras, remotes, soundbars, light strips, and streaming boxes. After making their purchases, it is common for them to share screenshots of redacted order confirmation emails on Telegram channels associated with the stolen account marketplaces.

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Surgeons Perform UK’s First Operation Using Apple’s Vision Pro Headset

Surgeons in the United Kingdom have performed the first operation in the country using Apple’s Vision Pro headset. TechSpot reports: During a recent operation to repair a patient’s spine at the private Cromwell Hospital in London, a scrub nurse working alongside the surgeon used the Vision Pro to help prepare, keep track of the procedure, and choose the right tools, reports the Daily Mail. This marked the first operation in the UK where the Vision Pro was used. The software running on Apple’s headset during the operation comes from US company eXeX, which has made similar programs for Microsoft’s HoloLens. It offers nurses and technicians both holographic and touch-free access to the surgical setup and the procedural guides from within the sterile field of the operating room, according to the press release. The software also tracks each stage of an operation and can measure how well the op went compared to previous procedures performed by other surgeons.

“It eliminates human error and eliminates the guesswork,” said Suvi Verho, lead scrub nurse at London Independent Hospital. “It gives you confidence in surgery.” While this marked the first time that the Vision Pro was used during a UK surgery, the first-ever time the device was used in an operating room was last month, just three days after its release, when Orlando resident and world-renowned Neurosurgeon Dr. Robert Masson wore it during several spine reconstruction surgeries. “We are in a new era of surgery, and for the first time, our surgical teams have the brilliance of visual holographic guidance and maps, improving visuospatial and temporal orientation for each surgical team and for each surgery in all specialties,” said Masson.

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