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Idiosyncratic use of punctuation - which of these annoys you the most?

  • Declarations and assignments that end with }; (C, C++, Javascript, etc.)
  • (Parenthesis (pile-ups (at (the (end (of (Lisp (code))))))))
  • Syntactically-significant whitespace (Python, Ruby, Haskell...)
  • Perl sigils: @array, $array[index], %hash, $hash{key}
  • Unnecessary sigils, like $variable in PHP
  • macro!() in Rust
  • Do you have any idea how much I spent on this Space Cadet keyboard, you insensitive clod?!
  • Something even worse...

[ Results | Polls ]
Comments:64 | Votes:115

posted by hubie on Monday July 24 2023, @07:51PM   Printer-friendly
from the animated-show-of-tomorrow-today! dept.

After a 10-year hiatus, the 31st century comedy arrives July 24th with 10 new episodes:

After debuting in 1999, multiple Emmy winner Futurama had an on-and-off existence across Fox, the direct-to-DVD realm, and Comedy Central, with its apparent finale in 2013—until news came last year that Hulu had ordered 20 new episodes. The first 10 arrive July 24, and fans will be glad to know they were worth the 10-year wait.

That said, you need not be an existing fan of Futurama (or be on a quote-along basis with the more than 120 episodes that came before) to appreciate the new season. Sure, there are Easter eggs for long-time devotees, and it's a more rewarding viewing experience if you are at least somewhat familiar with the show—but the plot callbacks are explained enough so that new viewers should be able to follow along.

[...] Though it can sometimes feel like the show is racing along trying to cram in fan-favorite characters (Robot Devil! Calculon! Robot Santa Claus! The Hypnotoad!), and that first episode leans awfully hard into the self-referential stuff, it all feels very rooted in the show Futurama has always been—with weird asides, clever gags, and characters you can't help but love, even though they tend to always do the wrong thing. The leap to 2023 feels as seamless as it could possibly feel, which is truly the greatest way to please old-school fans and, hopefully, the legions of new ones this revival will bring into the fold.

See also:
    Futurama Returns With New Episodes After a 10-Year Layoff
    "Futurama" Revival Ordered at Hulu with Multiple Original Cast Members Returning


Original Submission

posted by requerdanos on Monday July 24 2023, @03:04PM   Printer-friendly
from the how's-the-weather dept.

Sick of hearing about record heat? Scientists say those numbers paint the story of a warming world:

The summer of 2023 is behaving like a broken record about broken records.

Nearly every major climate-tracking organization proclaimed June the hottest June ever. Then July 4 became the globe's hottest day, albeit unofficially, according to the University of Maine's Climate Reanalyzer. It was quickly overtaken by July 5 and July 6. Next came the hottest week, a tad more official, stamped into the books by the World Meteorological Organization and the Japanese Meteorological Agency.

With a summer of extreme weather records dominating the news, meteorologists and scientists say records like these give a glimpse of the big picture: a warming planet caused by climate change. It's a picture that comes in the vibrant reds and purples representing heat on daily weather maps online, in newspapers and on television.

Beyond the maps and the numbers are real harms that kill. More than 100 people have died in heat waves in the United States and India so far this summer.

[...] In the past 30 days, nearly 5,000 heat and rainfall records have been broken or tied in the U.S. and more than 10,000 records set globally, according to NOAA [the National Oceanic and Atmospheric Administration]. Texas cities and towns alone have set 369 daily high temperature records since June 1.

Since 2000, the U.S. has set about twice as many records for heat as those for cold.

"Records go back to the late 19th century and we can see that there has been a decade-on-decade increase in temperatures," said Gavin Schmidt, director of NASA's Goddard Institute for Space Studies, keeper of the agency's climate records. "What's happening now is certainly increasing the chances that 2023 will be the warmest year on record. My calculations suggest that there's, right now, a 50-50 chance."


Original Submission

posted by hubie on Monday July 24 2023, @10:20AM   Printer-friendly
from the I'll-be-your-backdoor-protocol dept.

Apple Tries to Explain to U.K. Legislators That You Can't Add Back Doors to Secure Protocols:

Zoe Kleinman, reporting for BBC News:

Apple says it will remove services such as FaceTime and iMessage from the UK rather than weaken security if new proposals are made law and acted upon. The government is seeking to update the Investigatory Powers Act (IPA) 2016. It wants messaging services to clear security features with the Home Office before releasing them to customers. The act lets the Home Office demand security features are disabled, without telling the public. Under the update, this would have to be immediate. [...]

The U.K. legislators pushing this believe, wrongly, that it must be possible for these messaging platforms to add "good guys only" back doors. That if they pass this law, the result will be that the nerds who work at these companies will be forced to figure out a way to comply. What will actually happen is that these companies will be forced to pull the services from U.K., because they can't comply, unless they scrap their current end-to-end encryption and replace it — worldwide — with something insecure, which they aren't going to do.

[...] And while it's Apple and iMessage/FaceTime that are getting the headlines today, it's WhatsApp that's the big player in the UK, with 75 percent of adult Britons using it monthly. It's hard to overstate how much outrage these legislators are poised to bring upon themselves if they effectively ban WhatsApp. (The legislators themselves surely all depend upon it.)


Original Submission

posted by hubie on Monday July 24 2023, @05:35AM   Printer-friendly
from the scattershot-science dept.

NASA's unprecedented asteroid experiment is still churning out results:

Last year in a mission called DART, the space agency intentionally slammed a sacrificial spacecraft into an asteroid called Dimorphos, which was 7 million miles from Earth. Scientists hoped to prove civilization could alter the path of a menacing asteroid — should one be on a collision course with our planet — and they successfully nudged the (non-threatening) 525-foot-wide space rock.

Now, planetary researchers are watching the aftermath of the event to gather all the information possible about how to best change the trajectory of, or deflect, a future incoming asteroid. NASA released an image captured by the legendary Hubble Space Telescope — orbiting some 332 miles above Earth — showing a "swarm of boulders" from the experimental impact, which you can see below.

"This is a spectacular observation – much better than I expected," David Jewitt, a planetary scientist at The University of California, Los Angeles, said in a statement. "We see a cloud of boulders carrying mass and energy away from the impact target. The numbers, sizes, and shapes of the boulders are consistent with them having been knocked off the surface of Dimorphos by the impact."

"The boulders are some of the faintest things ever imaged inside our solar system," Jewitt added.


Original Submission

posted by hubie on Monday July 24 2023, @12:47AM   Printer-friendly
from the G-I-G-O dept.

It's still early days for AI in health care, but already racial bias has been found in some of the tools:

Doctors, data scientists and hospital executives believe artificial intelligence may help solve what until now have been intractable problems. AI is already showing promise to help clinicians diagnose breast cancer, read X-rays and predict which patients need more care. But as excitement grows, there's also a risk: These powerful new tools can perpetuate long-standing racial inequities in how care is delivered.

"If you mess this up, you can really, really harm people by entrenching systemic racism further into the health system," said Dr. Mark Sendak, a lead data scientist at the Duke Institute for Health Innovation.

These new health care tools are often built using machine learning, a subset of AI where algorithms are trained to find patterns in large data sets like billing information and test results. Those patterns can predict future outcomes, like the chance a patient develops sepsis. These algorithms can constantly monitor every patient in a hospital at once, alerting clinicians to potential risks that overworked staff might otherwise miss.

The data these algorithms are built on, however, often reflect inequities and bias that have long plagued U.S. health care. Research shows clinicians often provide different care to white patients and patients of color. Those differences in how patients are treated get immortalized in data, which are then used to train algorithms. People of color are also often underrepresented in those training data sets.

"When you learn from the past, you replicate the past. You further entrench the past," Sendak said. "Because you take existing inequities and you treat them as the aspiration for how health care should be delivered."

[...] The Office of the National Coordinator for Health Information Technology proposed new regulations in April that would require developers to share with clinicians a fuller picture of what data were used to build algorithms. Kathryn Marchesini, the agency's chief privacy officer, described the new regulations as a "nutrition label" that helps doctors know "the ingredients used to make the algorithm." The hope is more transparency will help providers determine if an algorithm is unbiased enough to safely use on patients.

The Office for Civil Rights at the U.S. Department of Health and Human Services last summer proposed updated regulations that explicitly forbid clinicians, hospitals and insurers from discriminating "through the use of clinical algorithms in [their] decision-making." The agency's director, Melanie Fontes Rainer, said while federal anti-discrimination laws already prohibit this activity, her office wanted "to make sure that [providers and insurers are] aware that this isn't just 'Buy a product off the shelf, close your eyes and use it.'"

[...] Some hospitals and academics worry these proposals — especially HHS's explicit prohibition on using discriminatory AI — could backfire. "What we don't want is for the rule to be so scary that physicians say, 'OK, I just won't use any AI in my practice. I just don't want to run the risk,'" said Carmel Shachar, executive director of the Petrie-Flom Center for Health Law Policy at Harvard Law School. Shachar and several industry leaders said that without clear guidance, hospitals with fewer resources may struggle to stay on the right side of the law.

[...] Duke's Mark Sendak welcomes new regulations to eliminate bias from algorithms, "but what we're not hearing regulators say is, 'We understand the resources that it takes to identify these things, to monitor for these things. And we're going to make investments to make sure that we address this problem.'"


Original Submission

posted by hubie on Sunday July 23 2023, @08:04PM   Printer-friendly
from the elegant-cabinet-for-a-more-civilized-age dept.

https://arcadeblogger.com/2023/07/22/environmental-discs-of-tron-roadside-pickup/

Environmental Discs of Tron (or EDOT for short) is arguably the most complex arcade cabinet of the Golden Age of videogaming. Working examples are hard to come by, and when they do, you can expect to pay handsomely for one!

What sets this game apart, is the thought that went into the cabinet design. Brian Colin (who we interviewed on the podcast a while back here), worked extensively on the game. Have a listen to his recollections of what made the game and cabinet so special.

So, finding one of these glorious pieces is a challenge these days. But can you imagine stumbling across one dumped in the street? Well, that's exactly what happened to my friend Tim Lapetino recently.

I was visiting my family in the Chicago suburbs recently, when my niece mentioned she saw "some TRON thing" sitting on a curb while she was riding her bike through the neighbourhood.

Of course we jumped in the car to go take a look, as it was just blocks away from where my parents and other family live. As we drove up to the spot, I uttered "What the &*@$?!" forgetting that my niece was in the car with us. And would you believe it – there it was. An EDOT was sitting by the curb

Tim Lapetino


Original Submission

posted by janrinok on Sunday July 23 2023, @03:18PM   Printer-friendly
from the tactical-delay-or-a-mere-setback dept.

https://arstechnica.com/tech-policy/2023/07/tsmc-delays-us-chip-fab-opening-says-us-talent-is-insufficient/

The Taiwan Semiconductor Manufacturing Company (TSMC) was supposed to have its first Arizona chip factory operational by late 2024 but now has confirmed significant delays. Primarily due to a shortage of technical workers with critical expertise in the US, TSMC projects to finish construction instead by 2025.

This is an "ominous delay," Bloomberg reported, and it comes right when investment in AI is booming.

[...] At the end of last month, TSMC confirmed it would be sending more Taiwanese workers to the US to ensure a "fast ramp up" of its $40 billion fab in Arizona, Reuters reported. A second Arizona fab is planned to be operational by 2026— the most advanced chip factory currently in production, Reuters reported—and, at least so far, it has not been confirmed whether the first fab's delay will result in any further delays on completing the second fab.

[...] Both officials and workers wonder how TSMC will spend US funding to finish its fabs. TSMC seeks up to $15 billion in funding from the CHIPS and Science Act, The Wall Street Journal reported, but has objected to some of the US conditions requiring that TSMC share profits and provide detailed information about its operations. The Biden administration has said that these conditions are only intended to ensure that TSMC makes appropriate use of taxpayer money.

It's clear, though, that TSMC is expected to hire and fairly pay US workers. Last year, President Joe Biden announced that building the first Arizona fab would employ "more than 3,000 union workers," and he previously promised that the CHIPS and Science Act was designed to "create good-paying American jobs."


Original Submission

posted by janrinok on Sunday July 23 2023, @10:28AM   Printer-friendly

If you aren't familiar with the experiment where you try to count the number of times a basketball is passed between people, you should watch the video and try the experiment first before reading on.

Research Reveals We Can Spot the Unexpected Better than Commonly Believed:

We are quite good at spotting unexpected objects while focused on another activity if they are moving fast, reveals a new study by a team of New York University researchers. Their findings cast doubt on a long-standing view that our ability to see the unexpected is necessarily impaired when our attention is already directed elsewhere.

"For decades, it's been thought that when we're intently focused on something relevant, like driving or playing a game, we fail to spot something that unexpectedly enters our field of vision, even if it is clearly visible and moving," says Pascal Wallisch, a clinical associate professor at New York University's Center for Data Science and Department of Psychology and lead author of the paper, which appears in the Proceedings of the National Academy of Sciences. "Our study questions the generality of this view because it shows that people, while focusing on a task, are quite capable of noticing unexpected objects that are moving quickly. However, our research confirms that we are indeed less adept at noticing these same objects when they are moving slowly."

The research team, who also included Wayne Mackey, Michael Karlovich, and David Heeger, centered its study on "inattentional blindness"—the inability to notice unexpected objects if attention is focused on a task. [...]

This and similar studies characterized one of the most striking phenomena in cognitive psychology—inattentional blindness—as an inevitable flip side of task focusing, and essentially a deficit.

In the PNAS study, the NYU research team sought to better understand the nature of inattentional blindness through a series of experiments—and, specifically, whether our cognitive processing was indeed as limited as this previous work suggested.

They replicated the invisible gorilla experiment using more than 1,500 of research participants—but including several new conditions. In the original 1999 experiment, the gorilla moved slowly as well as upright—like a human (which it was!).

In the new PNAS research, research participants saw the gorilla (yes, also a human dressed in a gorilla costume) in additional ways. Specifically, the "NYU gorilla" moved at various speeds—in some conditions, just a little faster than the "original gorilla" and, in others, substantially faster than the original gorilla. During these experiments—just like in the original experiment—research participants were tasked with counting the number of basketball passes made by players wearing black or white shirts.

The experiment may be seen in this video.

Overall, the results showed that participants, while engaged in the pass-counting task, were more likely to spot the NYU gorilla if it was moving substantially faster than in the original 1999 experiment or if it was leaping instead of walking.

[...] "(O)ur findings...contribute to the ongoing debate on the impact of physical salience on inattentional blindness, suggesting that it is fast speeds specifically, not the physical salience of a feature more generally, that captures attention."

[...] "Fast-moving, unexpected objects seem to override the task focus of an organism," says Wallisch. "This will allow it to notice and react to the new potential threat, improving chances of survival."

Journal Reference:
Pascal Wallisch, Wayne E. Mackey, Michael W. Karlovich, and David J. Heeger, The visible gorilla: Unexpected fast—not physically salient—Objects are noticeable, PNAS, 120 (22) e2214930120 https://doi.org/10.1073/pnas.2214930120


Original Submission

posted by martyb on Sunday July 23 2023, @05:43AM   Printer-friendly
from the you-can-always-write-bad-code-more-quickly-than-you-can-write-good-tests dept.

Seven AI companies agree to safeguards in the US:

Seven leading companies in artificial intelligence have committed to managing risks posed by the tech, the White House has said.

This will include testing the security of AI, and making the results of those tests public.

Representatives from Amazon, Anthropic, Google, Inflection, Meta, Microsoft, and OpenAI joined US President Joe Biden to make the announcement.

It follows a number of warnings about the capabilities of the technology.

The pace at which the companies have been developing their tools have prompted fears over the spread of disinformation, especially in the run up to the 2024 US presidential election.

"We must be clear-eyed and vigilant about the threats emerging from emerging technologies that can pose - don't have to but can pose - to our democracy and our values," President Joe Biden said during remarks on Friday.

[...] As part of the agreement signed on Friday, the companies agreed to:

  • Security testing of their AI systems by internal and external experts before their release.
  • Ensuring that people are able to spot AI by implementing watermarks.
  • Publicly reporting AI capabilities and limitations on a regular basis.
  • Researching the risks such as bias, discrimination and the invasion of privacy.

The goal is for it to be easy for people to tell when online content is created by AI, the White House added.

On Wednesday, Meta, Facebook's parent company, announced its own AI tool called Llama 2.

"This is a serious responsibility, we have to get it right," Mr Biden said. "And there's enormous, enormous potential upside as well."

[...] The voluntary safeguards signed on Friday are a step towards more robust regulation around AI in the US.

The administration is also working on an executive order, it said in a statement.

The White House said it would also work with allies to establish an international framework to govern the development and use of AI.

Warnings abut[sic] the technology include that it could be used to generate misinformation and destabilise society, and even that it could pose an existential risk to humanity - although some ground-breaking computer scientists have said apocalyptic warnings are overblown.


Original Submission

posted by hubie on Sunday July 23 2023, @12:28AM   Printer-friendly
from the we-promise-not-to-hurt-you-again-again dept.

Disenchanted mods Ars spoke with want change, not more communication:

Reddit is publicly extending an olive branch to the moderator community that it largely enraged over recent weeks. In a post on Wednesday, a Reddit employee detailed outreach efforts from the company, including new weekly feedback sessions, that it hopes can help repair ties with the social media platform and over 50,000 volunteer mods that it relies on. But as you might expect, mods remain skeptical.

A Reddit admin going by Go_JasonWaterfalls on the site and claiming the title of Reddit VP of community (Ars attempted to confirm the identity of /u/Go_JasonWaterfalls, but Reddit spokesperson Tim Rathschmidt declined to confirm the employee's identity by name) acknowledged the shattered relationship between mods—who spend thousands of hours providing free labor and have recently engaged in variously disruptive forms of protest over API pricing on the site—and Reddit—which has responded to said protests by ousting some protesting moderators from their posts. [...]

"So, we've all had a... time on Reddit lately," Go_JasonWaterfalls wrote. "And I'm here to recognize it, acknowledge that our relationship has been tested, and begin the 'now what?' conversation."

Noting that Reddit's "role is facilitation" and to give mods a platform they "can rely on," including necessary tools and resources, Go_JasonWaterfalls emphasized the need for "consistent, inclusive, and direct connection" with mods before detailing outreach efforts, like Weekly Mod Feedback Sessions.

[...] Mods, meanwhile, traumatized by a tumultuous past couple of months, have very low expectations of Reddit's efforts. Ars spoke with some who have already participated in similar efforts, like feedback sessions or the Mod Council, and claimed mixed results in regard to Reddit making actual moves in response to mod critiques and suggestions.

"The Reddit Mod Council in particular has been one where they will yo-yo on whether or not they listen to moderators. Sometimes they do, most times they don't," Alyssa Videlock, a mod for numerous subreddits, including large ones like r/tumblr and r/lgbt, told Ars.

Reddit is refusing to give way on virtually any of the mods' demands, which has included things like more accessible API pricing or more time to adjust to the new pricing for apps they value and broader exemption for apps used by users (including mods) with accessibility needs. Reddit's removal of troubling mods has also helped to obliterate Reddit community trust.

[...] Reddit's hasty implementation of API fees and its belittling of protests (both internally, reportedly, and to the press) and complaints are frequently cited by mods Ars has spoken to as elevating the protests beyond a debate on what the formerly free API should cost. Reddit has dug itself into a sizable hole that it will likely be unable to crawl out of through typical methods. This has been the largest protest in Reddit history, and virtual discussions and the continuation of already established communication programs won't be sufficient to convince scorned mods that the new Reddit not only cares about its users but also considers their opinions actionable.


Original Submission

posted by hubie on Saturday July 22 2023, @07:43PM   Printer-friendly
from the maybe-someday-I-can-buy-one dept.

The Aptera streamlined car project has been on and off for something like 10(?) years now, including a bankruptcy and reorg. They just released this statement on some wind tunnel testing, so it does seem like there is at least a little bit of life in the company.

From the link:

Alessandro Aquili, head of wind tunnel at Pininfarina, said, "Aptera's exterior design draws inspiration from the research of Prof. Morelli, the same engineer behind the Pininfarina wind tunnel. By building on Prof. Morelli's ideas, Aptera carries on this philosophy, continuing to push bounds of aerodynamic efficiency."

Steve Fambro, CEO and co-founder of Aptera, remarked, "Working with Pininfarina to validate Aptera's shape marks an exciting chapter in our journey toward creating a passenger vehicle with the lowest drag coefficient ever."

Aptera's aerodynamic shape is key to its energy efficiency. According to the company, it will enable its solar EVs to achieve a range of up to 1,000 miles per charge and the ability to drive up to 40 miles per day directly from the sun's rays.

An average of 10 miles a day would probably be enough for my limited/local car use (work from home), but I'm not in Southern CA, we don't get sun year around like they do.


Original Submission

posted by hubie on Saturday July 22 2023, @03:02PM   Printer-friendly

You Can Help Stop These Bad Internet Bills:

For the last six months, EFF, our supporters, and dozens of other groups have been sounding the alarm about several #BadInternetBills that have been put forward in Congress. We've made it clear that these bills are terrible ideas, but Congress is now considering packaging them together—possibly into must-pass legislation. I'm asking you to join us, ACLU, Fight for the Future, and other digital rights defenders in a week of action to protect the internet. Will you take a few minutes to join us in telling Congress that these bills must not become law?

The Kids Online Safety Act would increase surveillance and restrict access to information under the guise of protecting children online. KOSA would put the tools of censorship in the hands of state attorneys general. It would greatly endanger the rights and safety of young people online. KOSA's burdens will affect adults, too, who will likely face hurdles, like age verification, to access legal content online as a result of the bill.

The STOP CSAM Act would put security and free speech at risk by potentially making it a crime to offer encryption. The law would undermine digital security for all internet users, impacting private messaging and email app providers, social media platforms, cloud storage providers, and many other internet intermediaries and online services.

The EARN IT Act would likely mandate scanning of messages and other files similar to the plan that Apple wisely walked away from last year. Digital rights supporters sent more than 200,000 messages to Congress to kill earlier versions of this bill. We've beaten it twice before, and we can do it again. We need your support to stop the EARN IT Act one more time.

The RESTRICT Act would set the stage for a restriction on the use of TikTok, but could also criminalize common practices like using a VPN or side-loading to install a prohibited app. There are legitimate data privacy concerns about social media platforms, but this bill is a distraction from real progress on privacy.

The Cooper Davis Act would turn messaging services, social media companies, and even cloud providers into Drug Enforcement Administration (DEA) informants. The bill is likely to result in companies sweeping up innocent conversations, including discussions about past drug use or treatment. This bill contains no warrant requirement, no required notice, and limited user protections., andIt deserves to be defeated on the Senate floor.

If you are a US citizen and feeling bored and wondering what you can do to kill a little time, why not consider contacting your Congressional representatives if you have a strong opinion on any of these?


Original Submission

posted by hubie on Saturday July 22 2023, @10:19AM   Printer-friendly
from the world-of-tomorrow's-dystopia dept.

https://arstechnica.com/information-technology/2023/07/google-demos-unsettling-tool-to-help-journalists-write-the-news/

Google has been developing tools aimed at helping journalists write news articles, reports The New York Times and Reuters. It has demonstrated one tool, dubbed "Genesis," to the Times, The Washington Post, and The Wall Street Journal. Reportedly, Google is positioning the tool as a personal assistant for news reporters.

According to Reuters, Genesis is not intended to automate news writing but can instead potentially support journalists by offering suggestions for headlines or alternative writing styles to enhance productivity.

[...] Like OpenAI with its ChatGPT AI assistant that can compose text, Google has also been developing large language models (LLMs) such as PaLM 2

[...] However, unnamed anonymous executives who previewed Google's presentation described Genesis as "unsettling," according to the Times. Two of the executives told the outlet that the Google product seemed to underestimate the effort it takes to produce accurate and interesting news stories.


Original Submission

posted by janrinok on Saturday July 22 2023, @05:34AM   Printer-friendly

Avi and Oumuamua: Setting the Record Straight:

As an astrophysicist that searches for signs of alien technology beyond Earth, I'm often asked these days what I think about Avi Loeb.

Loeb, you might know, recently rose to public prominence with his claims that the first discovered interstellar comet, 'Oumuamua, is actually a piece of an alien spacecraft passing through the Solar System. Since then he has headlined UFO conventions, written a very popular book about his claim, and raised millions of dollars to study UFOs with his "Galileo Project" initiative. His latest venture with that money is to sweep a metal detector across the Pacific to find fragments of what he claims is another interstellar visitor that the US military detected crashing into the ocean, resulting in the headline "Why a Harvard professor thinks he may have found fragments of an alien spacecraft" in the Independent.

Loeb has the credentials to be taken seriously. He is a well-respected theoretical cosmologist that has made foundational contributions to our understanding of the early universe. He served as the chair of the Harvard astronomy department, and leads the distinguished Institute for Theory and Computation at the Harvard-Smithsonian Center for Astrophysics. He is well known as an outside-the-box thinker who is brave enough to be wrong often enough to occasionally be right in important and unexpected ways. He is a prolific paper writer, mentor to many students and postdoctoral researchers, and a leader in the community. I, in particular, was strongly influenced by a lecture he gave on "diversifying one's research portfolio" to include a lot of safe but passé research, some more risky cutting edge work, and a small amount of outré science. It's important advice for any scientific field.

But his shenanigans have lately strongly changed the astronomy community's perceptions of him. His recent claims about alien spacecraft and comets and asteroids largely come across to experts as, at best, terribly naive, and often as simply erroneous (Loeb has no formal training or previous track record to speak of in planetary science, which has little in common with the plasma physics he is known for). His promotion of his claims in the media is particularly galling to professionals who discover and study comets, who were very excited about the discovery of 'Oumuamua but have found their careful work dismissed and ridiculed by Loeb, who is the most visible scientist discussing it in the media.

Most recently, his claims to have discovered possible fragments of an alien ship in the Pacific have been criticized by meteoriticists at a recent conference. Loeb claims the metallic spherules he found trawling the ocean floor are from the impact site of an interstellar object (dubbed 20140108 CNEOS/USG) but they point out that they are much more likely to have come from ordinary meteorites or even terrestrial volcanoes or human activities like coal burning ships or WWII warfare in the area. And, they argue, 20140108 most likely did not come from outside the Solar System at all. (It also appears that Loeb may have violated legal and ethical norms by removing material from Papua New Guinean waters—you're not supposed to just go into other countries and collect things without permission.)

Also frustrating is how Loeb's book and media interviews paint him as a heroic, transformational figure in science, while career-long experts in the fields he is opining on are characterized as obstinate and short-sighted. His Galileo Project has that name because it is "daring to look through new telescopes." In his book claiming 'Oumuamua is an alien spacecraft, he unironically compares himself to the father of telescopic astronomy, Galileo himself. The community was aghast when he blew up at Jill Tarter, a well-respected giant in the field of SETI and one of the best known women in science in the world. (When Tarter expressed annoyance at his dismissal of others' work in SETI, he angrily accused her of "opposing" him, and of not doing enough for SETI, as if anyone had done more! Loeb later apologized to Tarter and his colleagues, calling his actions "inappropriate").

[...] I have noticed, however, that Loeb's work and behavior have been seen as so outrageous in many quarters that it essentially goes unrebutted in popular fora by those who are in the best position to explain what, exactly, is wrong about it. This leaves a vacuum, where the public hears only Loeb's persuasive and articulate voice, with no obvious public pushback from experts beyond exasperated eye-rolling that feeds right into his hero narrative.

So for the past several months, I've worked with Steve Desch and Sean Raymond, two planetary scientists and experts on 'Oumuamua, to correct the record. It has taken a lot of time: as Jonathan Swift wrote, "falsehood flies, and the truth comes limping after it." I read Loeb's book on 'Oumuamua, cover to cover, and carefully noted each of his arguments that 'Oumuamua is anything other than a comet or asteroid. The three of us then went through and did our best to take an objective look at whether his statement of the evidence is correct, whether it really supports the alien spacecraft hypothesis, and whether it is actually consistent with 'Oumuamua being a comet. No surprise, we find that under careful scrutiny his claims are often incorrect, and that there is little to no evidence that 'Oumuamua is an artificial object. We've done our best in our rebuttal to avoid criticizing Loeb or his behavior, and to focus instead just on what we do and do not know about 'Oumuamua. You can find our analysis here.

There is little joy in or reward for debunking claims in science. We would all rather be finding new natural phenomena to celebrate than spending a lot of time correcting the mistakes or false claims of others published years earlier.


Original Submission

posted by janrinok on Saturday July 22 2023, @12:51AM   Printer-friendly
from the metal-heal-thyself! dept.

Stunned Researchers Discover that Metals Can Heal Themselves 'Without Human Intervention':

Scientists for the first time have witnessed pieces of metal crack, then fuse back together without any human intervention, overturning fundamental scientific theories in the process.

If the newly discovered phenomenon can be harnessed, it could usher in an engineering revolution—one in which self-healing engines, bridges, and airplanes could reverse damage caused by wear and tear, making them safer and longer-lasting.

The research team from Sandia National Laboratories and Texas A&M University described their findings today in the journal Nature.

"This was absolutely stunning to watch first-hand," said Sandia materials scientist Brad Boyce.

"What we have confirmed is that metals have their own intrinsic, natural ability to heal themselves, at least in the case of fatigue damage at the nanoscale," he told the Laboratory's press.

Repeated stress or motion causes microscopic cracks to form in machines' metal components. Over time, these cracks grow and spread until the whole device breaks, or in the scientific lingo, it fails.

The fissure Boyce and his team saw disappear was one of these tiny but consequential fractures—measured in nanometers.

"From solder joints in our electronic devices to our vehicle's engines to the bridges that we drive over, these structures often fail unpredictably due to cyclic loading that leads to crack initiation and eventual fracture," Boyce said. "When they do fail, we have to contend with replacement costs, lost time and, in some cases, even injuries or loss of life. The economic impact of these failures is measured in hundreds of billions of dollars every year for the U.S."

Self-healing, as much as it sounds like something from science-fiction, is actually thousands of years old. The Romans realized that making concrete with certain ingredients like lime clasts allowed it to heal itself over time.

[...] A lot remains unknown about the self-healing process, including whether it will become a practical tool in a manufacturing setting.

"The extent to which these findings are generalizable will likely become a subject of extensive research," Boyce said. "We show this happening in nanocrystalline metals in vacuum. But we don't know if this can also be induced in conventional metals in air."

Journal Reference:
Barr, Christopher M., Duong, Ta, Bufford, Daniel C., et al. Autonomous healing of fatigue cracks via cold welding, Nature (DOI: 10.1038/s41586-023-06223-0)


Original Submission