"Robots and AI models share one crucial characteristic," writes the Washington Post. "Whether to move around, conduct conversations or solve problems, they function by constantly taking in and computing increasingly vast quantities of data. It's a brute-force approach to automation. Processing all that data makes them such energy guzzlers that their planet-warming pollution could outweigh any benefits they offer."

But then the article visits the robot soccer team of René van de Molengraft (chair of robotics at Eindhoven University of Technology in the Netherlands). "One solution, Molengraft thinks, might lie in 'lazy robotics,' a cheeky term to describe machines doing less and taking shortcuts..." There may be ceilings for laziness: limits to how much superfluous energy use can be stripped away before robots stop functioning as they should. Still, Molengraft said, "The truth is: Robots are still doing a lot of things that they shouldn't be doing." To waste less energy, robots need to do less of everything: move less, and think less, and sense less. They need to focus only on what's important at any particular moment. Which, after all, is what humans do, even if we don't always realize it....

Lazy robotics is already percolating out of university labs and into the R&D wings of corporations.... On the outskirts of Eindhoven, engineers at health technology firm Philips have encoded lazy robotics into two porcelain-white machines. These robots, named FlexArm and Biplane, move around an operating theater with smooth hums, taking X-ray images to help surgeons install cardiac stents or work on the brain with greater precision.... The robots use proximity sensors, which use far less energy. Lazy robotics can also cut down on the number of X-rays during a procedure. Frequently, surgeons take multiple X-rays to make their work as precise as possible. But with the robots' help, they can track the exact coordinates on a patient's body they are operating on in real time...

The theories behind lazy robotics make robots smart in a more practical way: by coding in an awareness of what they don't need to know. It may be a while before these solutions are deployed at scale out in the world, but their potential applications are already evident... Molengraft sees an extension of lazy robotics into the realm of generative AI, in which machines don't learn how to move but learn how to learn by processing veritable oceans of data... It's wiser to build versions that contain only the necessary information. A language model used by software engineers, for instance, shouldn't need to run through its training data about world history, sporting records or children's literature. "Not every AI model has to be able to tell us about the first Harry Potter book," Molengraft said.

The less data an AI model crunches, the less energy it uses — a vital efficiency fillip given that ChatGPT now uses 500,000 kilowatt-hours of energy a day, responding to 200 million queries. A U.S. household would need more than 17,000 days on average to rack up the same electricity bill... Molengraft sees this work as indispensable if the forthcoming age of machines is to be a cleaner time as well.

The Economist reports: "Shake, shake, shake, shake," Taylor Swift sings from the stage of Lumen Field in Seattle at 10.35 in the evening on July 22nd. The fans respond, enthusiastically; the stadium duly shakes; a nearby seismometer takes note. To pop aficionados "Shake it off" is an empowering up-tempo anthem played at 160 beats per minute. To the Pacific Northwest Seismic Network, which is designed to monitor earthquakes, it is a 2.6 hertz signal in which the amplitude of the acceleration was as large as one centimetre per second, per second.

The well-situated seismometer first came to public attention in January 2011, when it recorded the response of fans of the Seattle Seahawks, an American football team, to a magnificent touchdown by Marshawn Lynch, a running back known as "Beast Mode." The "Beast Quake" went down in local sporting history. When Ms Swift came to town for two nights of her Eras tour, Jacqueline Caplan-Auerbach, a geology professor at Western Washington University, used the opportunity to learn more about how events in the stadium shake its surroundings. On December 11th she presented some of her conclusions at the American Geophysical Union's autumn meeting in San Francisco.

[...] Dr Caplan-Auerbach wanted to see whether such resonant amplification might also be at play elsewhere, and to distinguish between the effect of the music itself and the audience's response. Her concert-night data showed two distinct sets of signals, one in higher frequencies (30-80hz), one in lower frequencies (1-8hz). The higher-frequency signals were present during the sound check, when the band were on stage but the stadium empty, and absent during the concerts' "surprise songs," played without the band by Ms Swift alone. The lower frequencies were absent when the audience had yet to arrive. Clearly those higher frequencies were from the music itself.

Science_afficionado writes: An international team of astronomers has discovered a planet like Jupiter zipping around its host star every day and a half, boiling at temperatures hotter than most stars and sporting a giant, glowing gas tail like a comet. From a report via Vanderbilt University: "With a day-side temperature peaking at 4,600 Kelvin (more than 7,800 degrees Fahrenheit), the newly discovered exoplanet, designated KELT-9b, is hotter than most stars and only 1,200 Kelvin (about 2,000 degrees Fahrenheit) cooler than our own sun. In fact, the ultraviolet radiation from the star it orbits is so brutal that the planet may be literally evaporating away under the intense glare, producing a glowing gas tail. The super-heated planet has other unusual features as well. For instance, it's a gas giant 2.8 times more massive than Jupiter but only half as dense, because the extreme radiation from its host star has caused its atmosphere to puff up like a balloon. Because it is tidally locked to its star -- as the moon is to Earth -- the day side of the planet is perpetually bombarded by stellar radiation and, as a result, it is so hot that molecules such as water, carbon dioxide and methane can't form there." The findings have been published in the journal Nature.

An anonymous reader writes: You'd think striking it suddenly rich would be the ultimate ticket to freedom. Without money worries, the world would be your oyster. Perhaps you'd champion a worthy cause, or indulge a sporting passion, but work? Surely not. However, remaining gainfully employed after sudden wealth is more common than you'd think. After all, there are numerous high-profile billionaires who haven't called it quits despite possessing the luxury to retire, including some of the world's top chief executives, such as Amazon's Jeff Bezos and Facebook's Mark Zuckerberg. But it turns out, the suddenly rich who aren't running companies are also loathe to quit, even though they have plenty of money. That could be, in part, because the link between salary and job satisfaction is very weak. According to a meta-analysis by University of Florida business school professor Timothy Judge and other researchers, there's less than a 2% overlap between the two factors. In the long run, we derive job satisfaction from non-monetary sources, which include positive peer relationships, the ability to work on meaningful projects and even leadership opportunities.

Charles Bethea has written a fascinating piece on the number '73' for The New Yorker. Below are some tidbits from the story but I urge you to hit the New Yorker link and read the story in entirety there. Bethea writes: "I am aware of the Warriors's push for seventy-three wins," Ken Ono, a professor of mathematics at Emory University and the author of "The Web of Modularity: Arithmetic of the Coefficients of Modular Forms and q-series," said recently. [...] Professor Ono worked as a math consultant on a film called "The Man Who Knew Infinity," which stars Dev Patel and Jeremy Irons, and which screens this week at the Tribeca Film Festival, in New York. The movie centers on the friendship of the legendary Indian mathematician Srinivasa Ramanujan (Patel) and his Cambridge University colleague G. H. Hardy (Irons), and it depicts a famous story that Hardy once told about Ramanujan. "I remember once going to see him when he was ill at Putney," Hardy said. "I had ridden in taxicab number 1729 and remarked that the number seemed to me rather a dull one, and that I hoped it was not an unfavorable omen. "No," he replied. "It is a very interesting number; it is the smallest number expressible as the sum of two cubes in two different ways." One cubed plus twelve cubed, and nine cubed plus ten cubed. This was the first of what came to be known as "taxicab numbers." [...] So what does Professor Ono think of seventy-three? "I really like the number seventy-three," he said. "It is the sixth 'emirp.'" An emirp, he explained, is a prime number that remains prime when its digits are reversed. (Emirp, of course, is 'prime' spelled backward.)

astroengine writes "Astronomers scoping-out the vicinity of the famous star Fomalhaut have discovered that its mysterious stellar sister is also sporting a rather attractive ring of comets. Located 25 light-years away in the constellation Piscis Austrinus, Fomalhaut A is one of the brightest stars in Southern Hemisphere skies. The bright blue giant is notable in that it hosts a gigantic ring of cometary debris and dust. Fomalhaut C is a red dwarf star and was only confirmed to be gravitationally bound Fomalhaut A and Fomalhaut B in October. Fomalhaut is therefore a triple, or trinary, star system. The small red dwarf star may be the proverbial runt of the Fomalhaut stellar litter, but it appears to share some common ground with its larger sibling. 'It's very rare to find two comet belts in one system, and with the two stars 2.5 light years apart this is one of the most widely separated star systems we know of,' said astronomer Grant Kennedy, of the University of Cambridge and lead researcher of this work. 'It made us wonder why both Fomalhaut A and C have comet belts, and whether the belts are related in some way.' One of the reasons why Fomalhaut A's cometary disk is so bright is down to the presence of its exoplanet, stirring up comet collisions. Fomalhaut C may be experiencing the same mechanism."

mikejuk writes that a "group of researchers at Rice University think that '[t]he global human population can be regarded as geographically distributed, multimodal sensors.' When it comes to sporting events, it seems that all you have to do is look to the Twitter frequency. The system that they created seems to work for most games. The exception to this is the Super Bowl for the reason that the sheer number of tweets about the game saturated the Twitter distribution system and so they couldn't pick out the maximum in tweet frequencies. They also have some interesting observations on how fast tweets follow an event." Sports reporting via Twitter makes me think of the stories about Ronald Reagan's broadcasting exploits creating "live" play-by-play based on telegraphed updates — and sometimes the wire went dead. I wonder whether the control-happy local franchises will do anything to prevent in-person fans creating and sharing such instant play-by-play accounts.

Hugh Pickens writes "John Tierney poses the question in the New York Times 'what if we let athletes do whatever they wanted to excel?' Before you dismiss the notion, consider what we're stuck with today — a system designed to create a level playing field, protect athletes' health and set an example for children, that fails on all counts. The journal Nature, in an editorial in the current issue, complains that 'antidoping authorities have fostered a sporting culture of suspicion, secrecy and fear' by relying on unscientifically calibrated tests, like the unreliable test for synthetic testosterone that cost Floyd Landis his 2006 Tour de France victory and even if the authorities manage to correct their tests, they can't possibly keep up with the accelerating advances in biology." Read on for more.

N_burnsy points out an article in Computerworld which "profiles several youthful hackers, some still serving prison time, some free, who have been caught indulging in some fairly serious cybercrime, and looks at their crimes and the lessons they have (or have not yet) learned. Starting with Farid 'Diab10' Essebar, currently a guest of the Moroccan prison system, who wrote and distributed the Mytob, Rbot, and Zotob botnet Trojans. There's Ivan Maksakov, Alexander Petrov, and Denis Stepanov, all guests of the Russian penal system, sentenced to eight years at hard labor for creating a botnet to engage in DDoS (distributed denial-of-service) attacks to blackmail online gambling sites based in the UK, threatening to take the sites down during major sporting events. Then there's Shawn Nematbakhsh who was a little too eager to prove a point about the electronic balloting system that the University of California employed to hold student council elections, by writing a script that cast 800 votes for a fictitious candidate named American Ninja." Not everyone on the list is exactly youthful, and the range of offenses shows how lumpy this area is both to the law and in public perception.

Slashback tonight brings some clarifications and updates to previous Slashdot stories, including: anti-Net-neutrality article modified; no bugged Canadian coins; a tech program for women in Silicon Valley; Pirate Bay and Sealand; and Microsoft evangelist apologizes for "pawns" comment. Read on for details.

Most commenting readers scoffed at Kent State University's new policy (noted on Slashdot yesterday) forbidding athletes from using profiles on Facebook. The arguments offered (legal, moral, and practical) mostly berated the school for limiting their students to no good end, but some thought-provoking comments exposed at least some complexities which make the issue less clear-cut than a straightforward case either of censorship or contractual freedom. Read on for a sampling of the comments which typified the conversation.

Joanne Pransky's tongue is firmly in her cheek a fair amount of the time as she answers your questions, but much of what she says is thought-provoking, especially in light of speculations like Marshall Brain's Robotic Nation essays about the inevitable spread of robotic devices in our society.