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America's First Big-Rig Hydrogen Fuel Station Opens in California

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EditorDavid
Oakland, California is now home to "the first commercial hydrogen fuel station for big-rig trucks in the United States," according to the Los Angeles Times — serving 30 hydrogen fuel-cell trucks. The newspaper says the facility "could mark the start of a nationwide network for fuel-cell truck refueling. It could also flop." Hydrogen fuel is expensive — as much as four times more expensive than gasoline or diesel fuel. The fuel cells, which drive electric motors to drive the truck, are enormously expensive as well.... The vehicles themselves are expensive too. Both battery electric and hydrogen fuel-cell trucks can cost three times as much or more than a $120,000 diesel truck. Those buying the trucks can qualify for state and federal subsidies to make up most of the upfront costs. But government regulations may spark some demand: New diesel truck sales will be outlawed in California by 2036. Only zero-tailpipe-emission new trucks will be allowed. Already, zero-emission requirements are in place for trucks that enter ocean ports. And only two technologies are available to achieve that goal: battery electric trucks and hydrogen fuel-cell trucks. "We believe a good portion of those will be hydrogen vehicles," said Matt Miyasato, chief of public policy for hydrogen fuel distributor FirstElement Fuel. FirstElement, through its True Zero brand fueling stations, is the largest hydrogen vehicle fuel distributor in the U.S... Battery electric is gaining a strong foothold in the medium-sized delivery truck market, but hydrogen could have a leg up for long-haul trucking. While a fuel cell is comparable in size to a diesel engine, a battery big enough for long-haul trucks adds weight and size and cuts down on the total freight load the truck can deliver. And while an electric truck battery can take hours to recharge, the refill time for hydrogen is more comparable to filling up with diesel fuel.

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The Naked-Eye Sky Will (Briefly) Host a New Star

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EditorDavid
RockDoctor (Slashdot reader #15,477) wants to tell you about a "new" star that will be visible to the naked eye — without a telescope — sometime before September: By "star", I do not mean "comet", "meteorite" or "firefly", but genuine [star] photons arriving here after about 3000 years in flight, causing your eyes to see a bright point on the nighttime sky. When it happens, the star will go from needing-a- telescope-or-good-binoculars-to-see, to being the 50th (or even 30th) brightest star in the sky. For a week or so. Of course, it could just go full-on supernova, and be visible in daylight for a few weeks, and dominate the night sky for months. But that's unlikely. Named "T Corona Borealis" (because it's the 20th variable star studied in the constellation "Corona Borealis") it's now visible all night, all year, for about 60% of the world's population (although normally you need binoculars to see it). But RockDoctor writes that in 2016, "T CrB" (as it is known) has started showing "a similar pattern of changes" to what happened in the late 1930s when it became one of only 10 "recurring nova" known to science: In 2023, the pattern continued and the match of details got better. The star is expected to undergo another "eruption" — becoming one of the brightest few stars in the sky, within the next couple of months. Maybe the next couple of weeks. Maybe the next couple of hours.... Last week, astrophysicist Dr Becky Smethurst posted on the expected event in her monthly "Night Sky News" video blog. If you prefer your information in text not video, the AAVSO (variable star observers) posted a news alert for it's observers a while ago. They also hosted a seminar on the star, and why it's eruption is expected Real Soon Now, which is also on YouTube. A small selection of recent papers on the subject are posted here, which also includes information on how to get the most up-to-date brightness readings (unless you're a HST / JWST / Palomar / Hawai`i / Chile telescope operator). Yes, the "big guns" of astronomy have prepared their "TOO — Target Of Opportunity" plans, and will be dropping normal observations really quickly when the news breaks and slewing TOO the target. You won't need your eclipse glasses for this. (Dr Becky's video covers where you can send them for re-use.) But you might want to photograph the appropriate part of the sky so you'll notice when the bomb goes off. Bomb? Did I say that the best model for what is happening is a thermonuclear explosion like a H-bomb the size of the Earth detonating? Well, that's the best analogue. This CNN article includes a nice animation from NASA illustrating the multi-star interaction that's causing the event: The stars in the orbiting pair are close enough to each other that they interact violently. The red giant becomes increasingly unstable over time as it heats up, casting off its outer layers that land as matter on the white dwarf star. The exchange of matter causes the atmosphere of the white dwarf to gradually heat until it experiences a "runaway thermonuclear reaction," resulting in a nova [according to NASA]... The NASAUniverse account on X, formerly known as Twitter, will provide updates about the outburst and its appearance. The BBC reiterates the key data points — that "The rare cosmic event is expected to take place sometime before September 2024. When it occurs it will likely be visible to the naked eye. No expensive telescope will be needed to witness this cosmic performance, says NASA."

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Airline Ticketing System Keeps Mistaking a 101-Year-Old Woman for a 1-Year-Old

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EditorDavid
Though it's long past Y2K, another date-related bug is still with us, writes Slashdot reader Bruce66423, sharing this report from the BBC. "A 101-year-old woman keeps getting mistaken for a baby, because of an error with an airline's booking system." The problem occurs because American Airlines' systems apparently cannot compute that Patricia, who did not want to share her surname, was born in 1922, rather than 2022.... [O]n one occasion, airport staff did not have transport ready for her inside the terminal as they were expecting a baby who could be carried... [I]t appears the airport computer system is unable to process a birth date so far in the past — so it defaulted to one 100 years later instead... But she is adamant the IT problems will not put her off flying, and says she is looking forward to her next flight in the autumn. By then she will be 102 — and perhaps by then the airline computers will have caught on to her real age.

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A Coal Billionaire is Building the World's Biggest Clean Energy Plant - Five Times the Size of Paris

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EditorDavid
An anonymous reader shared this report from CNN: Five times the size of Paris. Visible from space. The world's biggest energy plant. Enough electricity to power Switzerland. The scale of the project transforming swathes of barren salt desert on the edge of western India into one of the most important sources of clean energy anywhere on the planet is so overwhelming that the man in charge can't keep up. "I don't even do the math any more," Sagar Adani told CNN in an interview last week. Adani is executive director of Adani Green Energy Limited (AGEL). He's also the nephew of Gautam Adani, Asia's second richest man, whose $100 billion fortune stems from the Adani Group, India's biggest coal importer and a leading miner of the dirty fuel. Founded in 1988, the conglomerate has businesses in fields ranging from ports and thermal power plants to media and cements. Its clean energy unit AGEL is building the sprawling solar and wind power plant in the western Indian state of Gujarat at a cost of about $20 billion. It will be the world's biggest renewable park when it is finished in about five years, and should generate enough clean electricity to power 16 million Indian homes... [T]he park will cover more than 200 square miles and be the planet's largest power plant regardless of the energy source, AGEL said. CNN adds that the company "plans to invest $100 billion into energy transition over the next decade, with 70% of the investments ear-marked for clean energy."

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America's Commerce Department is Reviewing China's Use of RISC-V Chips

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EditorDavid
An anonymous reader shared a report this week from Reuters: The U.S. Department of Commerce is reviewing the national security implications of China's work in open-source RISC-V chip technology, according to a letter sent to U.S. lawmakers... The technology is being used by major Chinese tech firms such as Alibaba Group Holding and has become a new front in the strategic competition over advanced chip technology between the U.S. and China. In November, 18 U.S. lawmakers from both houses of Congress pressed the Biden administration for its plans to prevent China "from achieving dominance in ... RISC-V technology and leveraging that dominance at the expense of U.S. national and economic security." In a letter last week to the lawmakers that was seen by Reuters on Tuesday, the Commerce Department said it is "working to review potential risks and assess whether there are appropriate actions under Commerce authorities that could effectively address any potential concerns." But the Commerce Department also noted that it would need to tread carefully to avoid harming U.S. companies that are part of international groups working on RISC-V technology.

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Bezos, Other Amazon Execs Used Signal - a Problem for FTC Investigators

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EditorDavid
Pursuing an unfair business practices case against Amazon, America's Federal Trade Commission has now "accused" Amazon of using Signal, reports the Seattle Times: The newspaper notes that the app "can be set to automatically delete messages, to hide information related to the FTC's ongoing antitrust investigation into the company." In a court filing this week, the FTC moved to "compel" Amazon to share more information about its policies and instructions related to using the Signal app... The FTC accused Amazon executives of manually turning on the feature to delete messages in Signal even after the company learned that the FTC was investigating and had told Amazon to keep documents, emails and other messages. Many of Amazon's senior leaders used Signal, according to the FTC, including former CEO and current chair Jeff Bezos, CEO Andy Jassy, and general counsel David Zapolsky, as well as Jeff Wilke, former head of Amazon's worldwide consumer business, and Dave Clark, former worldwide operations chief. "Amazon is a company that tightly controls what its employees put into writing," FTC attorneys said in a court filing Thursday. "But Amazon's senior leadership also used another channel for internal communications and avoided the need to talk carefully by destroying the records of their messages...." In the court filing Thursday, the FTC asked Amazon to provide two troves of documents related to its use of Signal: Amazon's document preservation notices and its instructions about the use of "ephemeral messaging applications, including Signal." The FTC said Amazon waited for more than a year after it learned of the investigation to instruct its employees to preserve Signal messages. "It is highly likely that relevant information has been destroyed as a result of Amazon's actions and inactions," the FTC wrote in court records.

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How Einstein Lost the Battle To Explain Quantum Reality

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EditorDavid
Long-time Slashdot reader lee1 shares "an interesting essay on the history of orthodoxy in quantum mechanics," published this week in Nature. Its title? "'Shut up and calculate': how Einstein lost the battle to explain quantum reality." [T]he views of Danish physicist Niels Bohr came to dominate. Albert Einstein famously disagreed with him and, in the 1920s and 1930s, the two locked horns in debate. A persistent myth was created that suggests Bohr won the argument by browbeating the stubborn and increasingly isolated Einstein into submission. Acting like some fanatical priesthood, physicists of Bohr's 'church' sought to shut down further debate. They established the 'Copenhagen interpretation', named after the location of Bohr's institute, as a dogmatic orthodoxy. My latest book Quantum Drama, co-written with science historian John Heilbron, explores the origins of this myth and its role in motivating the singular personalities that would go on to challenge it. Their persistence in the face of widespread indifference paid off, because they helped to lay the foundations for a quantum-computing industry expected to be worth tens of billions by 2040... The Einstein-Bohr dispute raised larger issues, according to the article. "What is the purpose of physics? Is its main goal to gain ever-more-detailed descriptions and control of phenomena, regardless of whether physicists can understand these descriptions? Or, rather, is it a continuing search for deeper and deeper insights into the nature of physical reality? "Einstein preferred the second answer," the articcle notes — and concluded that quantum mechanics was incomplete: Unlike Bohr, Einstein had established no school of his own. He had rather retreated into his own mind, in vain pursuit of a theory that would unify electromagnetism and gravity, and so eliminate the need for quantum mechanics altogether. He referred to himself as a "lone traveler". In 1948, U.S. theoretical physicist J. Robert Oppenheimer remarked to a reporter at Time magazine that the older Einstein had become "a landmark, but not a beacon". Subsequent readings of this period in quantum history promoted a persistent and widespread suggestion that the Copenhagen interpretation had been established as the orthodox view... When learning quantum mechanics as a graduate student at Harvard University in the 1950s, US physicist N. David Mermin recalled vivid memories of the responses that his conceptual enquiries elicited from his professors, whom he viewed as 'agents of Copenhagen'. "You'll never get a PhD if you allow yourself to be distracted by such frivolities," they advised him, "so get back to serious business and produce some results. Shut up, in other words, and calculate." The book argues that actually the physics world suffered from "a subtly different kind of orthodoxy" — an indifference to "foundational questions" outside the mainstream — but that the "myth" motivated projects and experiments. "Although the wider physics community still considered testing quantum mechanics to be a fringe science and mostly a waste of time, exposing a hitherto unsuspected phenomenon — quantum entanglement and non-locality — was not..."

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Plunge in Storage Battery Costs Will Speed Shift to Renewable Energy, Says IEA

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EditorDavid
"In less than 15 years, battery costs have fallen by more than 90%," according to a new report from the International Energy Agency, "one of the fastest declines ever seen in clean energy technologies." And it's expected to get even cheaper, reports Reuters: An expected sharp fall in battery costs for energy storage in coming years will accelerate the shift to renewable energy from fossil fuels, the International Energy Agency (IEA) said on Thursday... The total capital costs of battery storage are due to tumble by up to 40% by 2030, the Paris-based watchdog said in its Batteries and Secure Energy Transitions report. "The combination of solar PV (photovoltaic) and batteries is today competitive with new coal plants in India," said IEA Executive Director Fatih Birol. "And just in the next few years, it will be cheaper than new coal in China and gas-fired power in the United States. Batteries are changing the game before our eyes." [...] The global market for energy storage doubled last year to over 90 gigawatt-hours (GWh), the report said... The slide in battery costs will also help provide electricity to millions of people without access, cutting by nearly half the average electricity costs of mini-grids with solar PV coupled with batteries by 2030, the IEA said. The Los Angeles Times notes one place adopting the tech is California: Standing in the middle of a solar farm in Yolo County, [California governor] Newsom announced the state now had battery storage systems with the capacity of more than 10,000 megawatts — about 20% of the 52,000 megawatts the state says is needed to meet its climate goals. Although Newsom acknowledged it isn't yet enough to eliminate blackouts...

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