How chemists turned bourbon waste into supercapacitors

How chemists turned bourbon waste into supercapacitors

fivenewscrypto    mars 26, 2026   

Bourbon is a multi-billion-dollar market, but the American barrel-aged whiskey also produces a lot of wasted grain at distilleries. Chemists at the University of Kentucky developed a method to transform that stillage into electrodes and used those electrodes to build supercapacitors with energy storage capacity on par with existing commercial devices. They presented their work at a meeting of the American Chemical Society in Atlanta, Georgia.

US distillers began making bourbon in the 18th century, particularly in Kentucky, but it really took off commercially, in terms of consumption and exports, after World War II. Legally, a whiskey can only be sold as bourbon if its mash is composed of at least 51 percent corn, with any other cereal grain (usually rye and barley) making up the remainder.

The grain is ground up and mixed with water, and mash from a previous distillation is added to create a sour mash. The addition of yeast launches fermentation, after which the mash is distilled to a clear spirit called "white dog." That spirit is poured into charred new oak barrels for aging of at least two years. It's the caramelized sugars and vanillin in the charred wood that give bourbon its distinctive dark color and flavor. The barrels are never reused for bourbon, typically being recycled for making barrel-aged beer, wine, and even barbecue and hot sauces.

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"The last straw"—RFK Jr.'s anti-vaccine ally angrily quits CDC panel after spat

"The last straw"—RFK Jr.'s anti-vaccine ally angrily quits CDC panel after spat

fivenewscrypto    mars 26, 2026   

One of the federal vaccine advisors hand-selected by anti-vaccine Health Secretary Robert F. Kennedy Jr. has angrily resigned from his position, complaining of "drama" amid a spat with a spokesperson. Robert Malone—a former researcher turned outspoken anti-vaccine activist and conspiracy theorist—confirmed he was stepping down Tuesday afternoon to CQ Roll Call, which first reported the news.

He told the outlet that his decision to quit came after a "miscommunication" about the fate of the Centers for Disease Control and Prevention's Advisory Committee on Immunization Practices (ACIP). Kennedy had populated ACIP with anti-vaccine allies including Malone, who served as vice chair, after summarily firing all 17 experts on the panel last June. Last week, a federal judge temporarily blocked Kennedy's ACIP appointments, including Malone. He also stayed the changes that its members had made to federal vaccine guidance, as well as the dramatic overhaul of the childhood vaccine schedule Kennedy made without them. The judge ruled all the moves were likely illegal.

On Thursday, Malone claimed on social media that the Department of Health and Human Services (HHS) had disbanded ACIP and planned to completely reconstitute it (again), without appealing the judge's ruling or defending Kennedy's ACIP picks from the judge's claims that they were unqualified. But soon after, Malone retracted his claim, saying it was a miscommunication and that disbanding ACIP was merely one of the "options being considered."

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Final analysis of 2025 Iberian blackout: Policies left Spain at risk

Final analysis of 2025 Iberian blackout: Policies left Spain at risk

fivenewscrypto    mars 25, 2026   

Roughly a year ago, Spain and Portugal went dark when the electrical grid of the entire Iberian Peninsula failed. While the grid operators did a heroic job of restarting the grid quickly, there were obvious questions about what had led to the blackout in the first place. A preliminary report suggested that a combination of grid-level voltage oscillations and early disconnections was the main factor.

Over the weekend, the European grid coordinator, ENTSO-e, released its final, detailed report on the event. While it's largely consistent with the preliminary conclusions, the report provides much more detail about what went wrong and, more significantly, offers a clear picture of how the Iberian grid operators could make changes to prevent a similar event in the future.

Oscillations

The expert committee that prepared the report had access to a wealth of data, including status logs from most of the major hardware on the Spanish and Portuguese grid, often recorded with sub-second precision. There's also data from the two major interchanges between the Spanish grid and those in France and Morocco. The group even obtained data from two manufacturers of the small inverters used for rooftop solar about the performance of their hardware on the day in question.

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Newly purchased Vizio TVs now require Walmart accounts to use smart features

Newly purchased Vizio TVs now require Walmart accounts to use smart features

fivenewscrypto    mars 25, 2026   

Prospective Vizio TV buyers should know there’s a good chance the set won’t work properly without a Walmart account. In an attempt to better serve advertisers, Walmart, which bought Vizio in December 2024, announced this week that select newly purchased Vizio TVs now require a Walmart account for setup and accessing smart TV features.

Since 2024, Vizio TVs have required a Vizio account, which a Vizio OS website says is necessary for accessing “exclusive offers, subscription management, and tailored support.” Accounts are also central to Vizio’s business, which is largely driven by ads and tracking tied to its OS.

A Walmart spokesperson confirmed to Ars Technica that Walmart accounts will be mandatory on “select new Vizio OS TVs” for owners to complete onboarding and to use smart TV features. The representative added:

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NASA kills lunar space station to focus on ambitious Moon base

NASA kills lunar space station to focus on ambitious Moon base

fivenewscrypto    mars 25, 2026   

WASHINGTON, DC—NASA Administrator Jared Isaacman on Tuesday laid out a sweeping vision for the space agency’s next decade during an event called “Ignition” in which he and other senior leaders set out their exploration plans.

Isaacman and his colleagues shared a number of major announcements, including outlining a nuclear-powered mission to Mars that will release three helicopters there and major changes to commercial space stations. However, most significantly, Isaacman outlined a detailed plan to construct a substantial Moon base over the next decade. He framed it as part of a "great power" challenge, saying that if NASA does not succeed now it will cede the Moon to China.

The base included long-range drones, multiple sources of power, sophisticated communications, permanent habitats, scientific laboratories, local manufacturing, and more. To accomplish this, NASA will work with a broad range of industry partners capable of sending medium-size and large cargos to the lunar surface. Isaacman also confirmed that NASA will no longer build a Lunar Gateway in orbit around the Moon, but would rather focus all of its energy and resources on the lunar surface.

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A mission NASA might kill is still returning fascinating science from Jupiter

A mission NASA might kill is still returning fascinating science from Jupiter

fivenewscrypto    mars 25, 2026   

Jupiter's colossal storms generate lightning flashes at least 100 times more powerful than those on Earth, according to scientists analyzing data from NASA's Juno spacecraft.

The findings were published March 20 in the journal AGU Advances and were based on data recorded by Juno in 2021 and 2022, after NASA granted an extension to the spacecraft's operations upon completing a five-year science campaign at Jupiter. Juno remains in good health, but NASA officials have not said if they will approve another extension for the mission. The issue is money.

Questions about the future of Juno and more than a dozen other robotic science missions began swirling nearly a year ago, when the Trump administration asked mission leaders to submit "closeout" plans for how to turn off their spacecraft. Ars first reported the news soon after the White House released a budget request that called for slashing NASA's science budget by nearly half.

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Trump's MAHA pick for surgeon general flounders amid GOP doubts

Trump's MAHA pick for surgeon general flounders amid GOP doubts

fivenewscrypto    mars 25, 2026   

President Trump's pick for surgeon general, Casey Means, is in jeopardy, as at least four Republican senators have expressed misgivings over her medical qualifications, views on vaccines, and some dubious advice she's given as a wellness influencer, according to reporting from The Washington Post.

Senators Bill Cassidy (R-La.), Susan Collins (R-Maine), Lisa Murkowski (R-Alaska), and Thom Tillis (R-N.C.) all expressed concern in a confirmation hearing last month about her potential role and appear to remain doubtful. Just one of those senators may be enough to block her nomination from advancing beyond the Senate Health Committee.

Means, who was nominated more than 10 months ago, is known as a prominent wellness influencer within the Make America Healthy Again movement and a close ally of anti-vaccine Health Secretary Robert F. Kennedy Jr., who started it. In the hearing, senators pressed Means on her views on vaccines, including shots against the flu and measles and a dose of hepatitis B vaccine for newborns. She largely dodged the questions, refusing to explicitly recommend the life-saving shots, and avoided overtly contradicting Kennedy's anti-vaccine views and misinformation.

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