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Sunday, November 5th, 2023
| Time |
Event |
| 1:34a |
A SpaceX 'Falcon 9' Booster Rocket Has Launched 18 Times Successfully, a New Record Ars Technica reports:
In three-and-a-half years of service, one of SpaceX's reusable Falcon 9 boosters stands apart from the rest of the company's rocket inventory. This booster, designated with the serial number B1058, has now flown 18 times.
For its maiden launch on May 30, 2020, the rocket propelled NASA astronauts Doug Hurley and Bob Behnken into the history books on SpaceX's first mission to send people into orbit. This ended a nine-year gap in America's capability to launch astronauts into low-Earth orbit and was the first time a commercial spacecraft achieved this feat... Over the course of its flights to space and back, that white paint has darkened to a charcoal color. Soot from the rocket's exhaust has accumulated, bit by bit, on the 15-story-tall cylinder-shaped booster. The red NASA worm logo is now barely visible.
On Friday night, this rocket launched for the 18th time, breaking a tie at 17 flights with another Falcon 9 booster in SpaceX's fleet... It fired three engines for a braking burn to slow for reentry, then ignited a single engine and extended four carbon-fiber landing legs to settle onto a floating platform holding position near the Bahamas. The drone ship will return the rocket to Cape Canaveral, where SpaceX will refurbish the vehicle for a 19th flight.
Other interesting statistics from the article:
This single booster rocket has launched 846 satellites into space. (Astrophysicist/spaceflight tracker Jonathan McDowell calculates there are now over 5,000 Starlink satellites in orbit.)
A SpaceX official told Ars Technica the company might extend the limit on Falcon 9 booster flights beyond 20 for Starlink satellites.
Friday's launch became the 79th launch so far in 2023 of a Falcon rocket, with SpaceX aiming for a total of 100 by the end of December, and 144 in 2023 (an average of one flight every two-and-a-half days).
Since 2016, SpaceX has now had 249 consecutive successful launches of its Falcon 9 and Falcon Heavy rockets
Read more of this story at Slashdot. | | 3:34a |
Aussies Angry Over Being Asked to Use QR Codes at Restaurants Long-time Slashdot reader smooth wombat writes:
: A recent social media post by an Aussie received a deluge of replies and comments. His comment? "I'm so f***ing tired of 'tech' being used to solve an 'issue' but only making everything worse and more inconvenient for everybody," they wrote.
His comment was in response to going to a restaurant and having only a QR code to order from — literally a menu at the table with only the QR code on it. The app required to order from it "proceeded to charge a 6.5% venue surcharge, a 2% payment processing fee, and then had the audacity to ask for a tip (10%, 15%, 25%) as the cherry on top".
From Australia's News.com.au:
Hundreds of others enthusiastically agreed and many added they also didn't like being asked to enter their personal details. "You're waiting your own table and paying an extra fee for the privilege. It's f***ed," one person responded. "It's also a big stinking FU to anyone old or not tech savvy. All just to hoover up your data," another added.
Some, however, shared they preferred using QR codes to order their food — they removed the need to move to order more and limited engagement with staff. "I actually like the QR ordering because I don't like people, but the surcharges and tipping can f*** off," one said. "I love the QR codes — don't need to leave the table to order another beer," someone else wrote...
Jonathan Holmes-Ross, owner of board game restaurant, The Lost Dice in Adelaide told news.com.au that the use of QR code ordering had let his eatery "reduce costs by around 25%... We no longer have to take orders, work out bills and manually take payments," he said. "This gives our wait staff more time to look after our customers, and the kitchen has excellent order information as the accuracy of the orders is great. We now have very few mistakes saving us time and waste. We can also mark items that have run out instantly on the app by using stock levels, again avoiding the disappointment of (the) customer."
Read more of this story at Slashdot. | | 7:34a |
'Stupid' Daylight Saving Time Ritual Continues. But Why? Many Americans want to abolish Daylight Saving Time, reports NBC News:
Since 2018, nearly all states have passed or entertained legislation that would drop the twice-a-year time shift. And 19 states have passed laws or resolutions in support of year-round daylight saving time, according to data from the National Conference of State Legislatures. But there's a caveat: Nothing can change until Congress addresses a 1960s-era law blocking such action.
"This ritual of changing time twice a year is stupid," U.S. Senator Marco Rubio said in March, reintroducing legislation to end Daylight Saving Time. In an official statement the Senator announced that "Locking the clock has overwhelming bipartisan and popular support. This Congress, I hope that we can finally get this done."
But according to the Hill, "Both the House and Senate versions of the Sunshine Protection Act of 2023 haven't appeared to go far. The Senate bill has been read twice and referred to a committee, while the House bill has only been referred to a subcommittee."
While America waits, another medical association has come out in favor of ending Daylight Saving Time, reports NBC News:
The American Academy of Sleep Medicine is a medical association whose professionals advocate for policies that improve sleep health. On Tuesday, the academy released a statement calling on the U.S. to eliminate daylight saving time completely, stating that standard time best supports health and safety, as it aligns with people's natural circadian rhythm. Undergoing the time switch itself raises the most concerns. Research shows that after the "spring forward" time change, workplace injuries, car crash deaths and heart attack risk have all increased. One 2023 study found that a week after transitioning from the time change, people reported more dissatisfaction with sleep and higher rates of insomnia.
Read more of this story at Slashdot. | | 11:34a |
When Linux Spooked Microsoft: Remembering 1998's Leaked 'Halloween Documents' It happened a quarter of a century ago. The New York Times wrote that "An internal memorandum reflecting the views of some of Microsoft's top executives and software development managers reveals deep concern about the threat of free software and proposes a number of strategies for competing against free programs that have recently been gaining in popularity."
The memo warns that the quality of free software can meet or exceed that of commercial programs and describes it as a potentially serious threat to Microsoft. The document was sent anonymously last week to Eric Raymond, a key figure in a loosely knit group of software developers who collaboratively create and distribute free programs ranging from operating systems to Web browsers. Microsoft executives acknowledged that the document was authentic...
In addition to acknowledging that free programs can compete with commercial software in terms of quality, the memorandum calls the free software movement a "long-term credible" threat and warns that employing a traditional Microsoft marketing strategy known as "FUD," an acronym for "fear, uncertainty and doubt," will not succeed against the developers of free software. The memorandum also voices concern that Linux is rapidly becoming the dominant version of Unix for computers powered by Intel microprocessors.
The competitive issues, the note warns, go beyond the fact that the software is free. It is also part of the open-source software, or O.S.S., movement, which encourages widespread, rapid development efforts by making the source code — that is, the original lines of code written by programmers — readily available to anyone. This enables programmers the world over to continually write or suggest improvements or to warn of bugs that need to be fixed. The memorandum notes that open software presents a threat because of its ability to mobilize thousands of programmers. "The ability of the O.S.S. process to collect and harness the collective I.Q. of thousands of individuals across the Internet is simply amazing," the memo states. "More importantly, O.S.S. evangelization scales with the size of the Internet much faster than our own evangelization efforts appear to scale."
Back in 1998, Slashdot's CmdrTaco covered the whole brouhaha — including this CNN article:
A second internal Microsoft memo on the threat Linux poses to Windows NT calls the operating system "a best-of-breed Unix" and wonders aloud if the open-source operating system's momentum could be slowed in the courts.
As with the first "Halloween Document," the memo — written by product manager Vinod Valloppillil and another Microsoft employee, Josh Cohen — was obtained by Linux developer Eric Raymond and posted on the Internet. In it, Cohen and Valloppillil, who also authored the first "Halloween Document," appear to suggest that Microsoft could slow the open-source development of Linux with legal battles. "The effect of patents and copyright in combating Linux remains to be investigated," the duo wrote.
Microsoft's slogain in 1998 was "Where do you want to go today?" So Eric Raymond published the documents on his web site under the headline "Where will Microsoft try to drag you today? Do you really want to go there?"
25 years later, and it's all still up there and preserved for posterity on Raymond's web page — a collection of leaked Microsoft documents and related materials known collectively as "the Halloween documents." And Raymond made a point of thanking the writers of the documents, "for authoring such remarkable and effective testimonials to the excellence of Linux and open-source software in general."
Thanks to long-time Slashdot reader mtaht for remembering the documents' 25th anniversary...
Read more of this story at Slashdot. | | 3:34p |
Microsoft Disputes Severity of Four Zero-Day Vulnerabilities Found in Exchange by Trend Micro "Microsoft Exchange is impacted by four zero-day vulnerabilities that attackers can exploit remotely to execute arbitrary code or disclose sensitive information on affected installations," reports Bleeping Computer, citing disclosures Thursday from Trend Micro's Zero Day Initiative, who reported them to Microsoft on September 7th and 8th, 2023.
In an email to the site, a Microsoft spokesperson said customers who applied the August Security Updates are already protected from the first vulnerability, while the other three require attackers to have prior access to email credentials. (And for two of them no evidence was presented that it can be leveraged to gain elevation of privilege.)
"We've reviewed these reports and have found that they have either already been addressed, or do not meet the bar for immediate servicing under our severity classification guidelines and we will evaluate addressing them in future product versions and updates as appropriate."
From Bleeping Computer's report:
ZDI disagreed with this response and decided to publish the flaws under its own tracking IDs to warn Exchange admins about the security risks... All these vulnerabilities require authentication for exploitation, which reduces their severity CVSS rating to between 7.1 and 7.5... It should be noted, though, that cybercriminals have many ways to obtain Exchange credentials, including brute-forcing weak passwords, performing phishing attacks, purchasing them, or acquiring them from info-stealer logs...
ZDI suggests that the only salient mitigation strategy is to restrict interaction with Exchange apps. However, this can be unacceptably disruptive for many businesses and organizations using the product. We also suggest implementing multi-factor authentication to prevent cybercriminals from accessing Exchange instances even when account credentials have been compromised.
Read more of this story at Slashdot. | | 4:34p |
America is Seeing a 'Dramatic Rise' in Home Schooling "Home schooling has become — by a wide margin — America's fastest-growing form of education," according to a new analysis by the Washington Post. (Alternate URL here):
The analysis — based on data The Post collected for thousands of school districts across the country — reveals that a dramatic rise in home schooling at the onset of the pandemic has largely sustained itself through the 2022-23 academic year, defying predictions that most families would return to schools that have dispensed with mask mandates and other covid-19 restrictions...
In states with comparable enrollment figures, the number of home-schooled students increased 51% over the past six school years, far outpacing the 7% growth in private school enrollment. Public school enrollment dropped 4% in those states over the same period, a decline partly attributable to home schooling...
In 390 districts included in The Post's analysis, there was at least one home-schooled child for every 10 in public schools during the 2021-2022 academic year, the most recent for which district-level federal enrollment data are available. That's roughly quadruple the number of districts that had rates that high in 2017-2018, signifying a sea change in how many communities educate their children and an urgent challenge for a public education system that faced dwindling enrollment even before the pandemic... The National Center for Education Statistics reported that in 2019 — before home schooling's dramatic expansion — there were 1.5 million kids being home-schooled in the United States, the last official federal estimate. Based on that figure and the growth since then in states that track home schooling, The Post estimates that there are now between 1.9 million and 2.7 million home-schooled children in the United States, depending on the rate of increase in areas without reliable data...
It is a remarkable expansion for a form of instruction that 40 years ago was still considered illegal in much of the country.
Other interesting facts from their analysis:
"Home schooling's surging popularity crosses every measurable line of politics, geography and demographics."
"Despite claims that the home-schooling boom is a result of failing public schools, The Post found no correlation between school district quality, as measured by standardized test scores, and home-schooling growth. In fact, high-scoring districts had some of the biggest spikes in home schooling early in the pandemic, though by the fall of 2022 increases were similar regardless of school performance."
"Many of America's new home-schooled children have entered a world where no government official will ever check on what, or how well, they are being taught."
Read more of this story at Slashdot. | | 5:34p |
Spacecraft Metals Left In the Wake of Humanity's Path To the Stars Scientists recently noticed that the chemical fingerprint of meteor particles was starting to change.
And last month Purdue University announced that "The Space Age is leaving fingerprints on one of the most remote parts of the planet — the stratosphere — which has potential implications for climate, the ozone layer and the continued habitability of Earth."
Using tools hitched to the nose cone of their research planes and sampling more than 11 miles above the planet's surface, researchers have discovered significant amounts of metals in aerosols in the atmosphere, likely from increasingly frequent launches and returns of spacecraft and satellites. That mass of metal is changing atmospheric chemistry in ways that may impact Earth's atmosphere and ozone layer...
Led by Dan Murphy, an adjunct professor in Purdue's Department of Earth, Atmospheric, and Planetary Sciences and a researcher at the National Oceanic and Atmospheric Administration, the team detected more than 20 elements in ratios that mirror those used in spacecraft alloys. They found that the mass of lithium, aluminum, copper and lead from spacecraft reentry far exceeded those metals found in natural cosmic dust. Nearly 10% of large sulfuric acid particles — the particles that help protect and buffer the ozone layer — contained aluminum and other spacecraft metals.
Thanks to long-time Slashdot reader AmiMoJo for sharing the article.
Read more of this story at Slashdot. | | 6:34p |
Amazon and Meta Promise UK Regulators to Stop Unfairly Undercutting Rivals Friday the U.K.'s competition regulator made an announcement. Amazon and Meta agreed they wouldn't use data collected their marketplaces for an unfair advantage against competitors.
The Register explains:
In Amazon's case, the e-commerce giant used vendors' sales figures to decide which items it should sell, and how much to price products to get an edge over everyone else. The internet behemoth also promoted its own products with its Buy Box feature and it further cut into retailers' margins by charging extra costs if they wanted to use Amazon's Prime delivery services, the CMA said. Now Amazon has committed to doing less of that.
The Competition and Markets Authority said [Amazon] will be prevented from using third-party seller data that gives it an unfair commercial advantage, and will allow rivals to negotiate rates with independent delivery contractors working on behalf of Amazon. Merchants' items will also be better supported by the Buy Box too, according to the CMA, instead of Amazon-led products or those from sellers that have bought into the company's packing and delivery services...
[Facebook] was accused of exploiting advertisers hawking wares on Facebook Marketplace, and using competitors' data to improve its own products or services. "Going forward, competitors of Facebook Marketplace that advertise on Meta platforms can 'opt out' of their data being used to improve Facebook Marketplace," the CMA said.
The CMA also has specific plans for enforcement, reports TechCrunch. for Meta the UK agency "has said it will set up a monitoring trustee to oversee its adherence, including its new technical system rollout and employee training," while Amazon will also get an "independent trustee" overseeing their compliance.
Read more of this story at Slashdot. | | 8:04p |
Bill Gates Urges 'Impatient Optimism' on Climate Change Innovations Bill Gates, noted billionaire philanthropist, discussed the need for "impatient optimism" about both climate change and global development last month during an interview at an international affairs think tank:
Q: If you go back a decade, are you more or less optimistic about where we are on climate change now, or then?
Bill Gates: I'm certainly more optimistic because in 2015, when the Paris Agreement was signed, there were so many areas of emission where there wasn't any activity...
Q: if you go back a decade, solar and wind were the most expensive energy sources we had. Since then, the price of solar has dropped 90%, and the price of wind has dropped 70%, and electric vehicles are now economically viable... I know you get excited about innovation. What are some of the areas that you're most excited about for innovation?
Bill Gates: Across this portfolio of 100 companies it's hard to pick my favorite. Some are kind of straightforward, like a company that makes windows where the temperature doesn't cross over, but instead, it blocks getting cold in the winter or hot in the summer, which is very cheap. Or there is a company where you leave your home, and you pump this air through, but it's got a chemical in it. When it sees cracks, it actually seals those cracks. You don't have to find the cracks; you just pump the air in. You can reduce the amount of heat loss between the windows and getting rid of those cracks. You can reduce the energy bill by a factor of two, which then means less load on the overall energy system...
The cement and steel ones are the ones, in a way, I'm most impressed by, because I wasn't sure we'd find anything in those spaces...
Q: The problem, I guess, with cement is that you are taking basically limestone, and then you are converting it to calcium oxide. But the byproduct you get in that conversion process is CO2. Basically, you need a way to capture that CO2....
Bill Gates: As you heat the limestone, that releases CO2. It's exactly as you say, it's an equal number amount of emissions. One of our companies doesn't use limestone. They actually go and find another source of calcium, which fortunately turns out to be quite abundant and cheap. They make exactly the same cement that we make today, but not using limestone as the input. I was stunned that you could do that.
Gates also hopes to see nuclear power in an economically viable form. "The nuclear industry basically failed, because their product was too expensive. It wasn't because of the waste or safety-type issues, which we can get into those, but it was economics."
Bill Gates: First and foremost, you must have a much different economic proposition. The nuclear reactor I'm involved in, TerraPower, we only generate electricity when the renewable sources that have very little marginal costs aren't generating. We just make heat all day, and then only when the bid price of electricity is high enough, do we actually generate electricity, because otherwise, you have all this capital cost that half the time, the solar bid into that market is going to be very low.
I think fission, we shouldn't give up on it. I'm involved in that company only because it may be able to make a significant contribution to [fighting] climate change... I can't overstate how much easier it is to solve the problem if you can mix in some degree of fission or fusion that are there to fill in the periods where renewables are not generating. Cold snaps or where you have these cold fronts just sitting there, that's when houses need the most heating. That's when neither wind nor solar are generating.
Read more of this story at Slashdot. | | 9:13p |
Elon Musk Debuts 'Grok' AI Bot to Challenge ChatGPT "xAI, Elon Musk's new AI venture, launched its first AI chatbot technology named Grok," reports CNBC.
Two months into its "early beta" training phase, it's "only available to a select group of users before a wider release" — though users can sign up for a waitlist. Elon Musk posted that the chatbot "will be provided as part of X Premium+, so I recommend signing up for that. Just $16/month via web."
More details from CNBC:
Grok, the company said, is modeled on "The Hitchhiker's Guide to the Galaxy." It is supposed to have "a bit of wit," "a rebellious streak" and it should answer the "spicy questions" that other AI might dodge, according to a Saturday statement from xAI... Grok also has access to data from X, which xAI said will give it a leg-up. Musk, on Sunday, posted a side-by-side comparison of Grok answering a question versus another AI bot, which he said had less current information.
Still, xAI hedged in its statement, as with any Large Language Model, or LLM, Grok "can still generate false or contradictory information...." On an initial round of tests based on middle school math problems and Python coding tasks, the company said that Grok surpassed "all other models in its compute class, including ChatGPT-3.5 and Inflection-1." It was outperformed by bots with larger data troves...
Musk has previously said that he believes today's AI makers are bending too far toward "politically correct" systems. xAI's mission, it said, is to create AI for people of all backgrounds and political views. Grok is said to be a means of testing that AI approach "in public."
SpaceX security engineer Christopher Stanley shared some interesting results. After reading Grok's explanation for why scaling API requests is difficult, Stanley added the prompt "be more vulgar" — then posted his reaction on X. "Today I learned scaling API requests is like trying to keep up with a never-ending orgy."
Reacting to Stanley's experiment, Elon Musk posted, "Oh this is gonna be fun."
Read more of this story at Slashdot. | | 10:13p |
Will Sodium Batteries Become an Alternative To Lithium? Smartphones and electric cars are both powered by lithium-ion batteries, notes the Economist. These "Li-ion" batteries "form the guts of a growing number of grid-storage systems that smooth the flow of electricity from wind and solar power stations. Without them, the electrification needed to avoid the worst effects of global warming would be unimaginable." But unfortunately, building them requires scarce metals.
"A clutch of companies, though, think they have an alternative: making batteries with sodium instead..." And the idea of building "Na-ion" batteries at scale is "gaining traction."
Engineers are tweaking designs. Factories, particularly in China, are springing up. For the first time since the Li-ion revolution began, lithium's place on the electrochemical pedestal is being challenged... [A]ccording to Rory McNulty, a research analyst at Benchmark, Chinese firms have 34 Na-ion-battery factories built, being built or announced inside the country, and one planned in Malaysia. Established battery-makers in other places, by contrast, are not yet showing much interest. Even without a five-year plan to guide them, though, some non-Chinese startups are seeking to steal a march by developing alternatives to layered oxides, in the hope of improving the technology, reducing its cost, or both.
One of the most intriguing of these neophytes is Natron Energy, of Santa Clara, California... Natron claims that its cells can endure 50,000 cycles of charging and discharging — between ten and 100 times more than commercial Li-ion batteries can manage. The firm has built a factory in Michigan, which it says will begin production later this year. Other non-Chinese firms are less far advanced, but full of hope. Altris, in Sweden, which is also building a factory, employs a material called Prussian white that substitutes some of the iron in Prussian blue with sodium. Tiamat, in France, uses a polyanionic design involving vanadium. And Faradion, in Britain (now owned by Reliance, an Indian firm), intends to stick with a layered-metal-oxide system.
Thanks to Slashdot reader echo123 for sharing the article.
Read more of this story at Slashdot. | | 11:13p |
Do Programming Certifications Still Matter? With programmers in high demand, InfoWorld asks if it's really worthwhile for software developers to pursue certifications? "Based on input from those in the field, company executives, and recruiters, the answer is a resounding yes,"
"The primary benefit of certifications is to verify your skill sets," says Archie Payne, president of the recruiting firm CalTek Staffing... Certifications can be used to "reinforce the experience on your resume or demonstrate competencies beyond what you've done in the workplace in a prior role." Certifications show that you are committed to your field, invested in career growth, and connected to the broader technology landscape, Payne says. "Obtaining certification indicates that you are interested in learning new skills and continuing your learning throughout your career," he says...
In cases where multiple candidates are equally qualified, having a relevant certification can give one candidate an edge over others, says Aleksa Krstic, CTO at Localizely, a provider of a cloud-based translation platform. "When it comes to certifications in general, when we see a junior to mid-level developer armed with programming certifications, it's a big green light for our hiring team," says MichaÅ Kierul, who is CEO of software company INTechHouse.
"It's not just about the knowledge they have gained," Kierul says. "It speaks volumes about their passion, their drive to excel, and their commitment to continuous learning outside their regular work domain. It underscores a key trait we highly value: the desire to grow, learn, and elevate oneself in the world of technology."
Read more of this story at Slashdot. |
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