Comment Re:Desperate Times (Score 1) 23
Disney has pleasantly surprised me with how they're dealing with Star Wars. I'll give them the benefit of the doubt for now.
LK
Comment Re:Desperate Times (Score 1) 23
Sometimes, they write love letters to the fans.
LK
Researchers Build 'The World's Fastest Petahertz Quantum Transistor'. They Predict Lightwave Electronics (arizona.edu) 18
"What if ultrafast pulses of light could operate computers at speeds a million times faster than today's best processors?" asks the University of Arizona.
"A team of scientists, including researchers from the University of Arizona, are working to make that possible." In a groundbreaking international effort, researchers from the Department of Physics in the College of Science and the James C. Wyant College of Optical Sciences demonstrated a way to manipulate electrons in graphene using pulses of light that last less than a trillionth of a second. By leveraging a quantum effect known as tunneling, they recorded electrons bypassing a physical barrier almost instantaneously, a feat that redefines the potential limits of computer processing power. A study published in Nature Communications highlights how the technique could lead to processing speeds in the petahertz range — over 1,000 times faster than modern computer chips. Sending data at those speeds would revolutionize computing as we know it, said Mohammed Hassan, an associate professor of physics and optical sciences. Hassan has long pursued light-based computer technology and previously led efforts to develop the world's fastest electron microscope...
[T]he researchers used a laser that switches off and on at a rate of 638 attoseconds to create what Hassan called "the world's fastest petahertz quantum transistor... For reference, a single attosecond is one-quintillionth of a second," Hassan said. "That means that this achievement represents a big leap forward in the development of ultrafast computer technologies by realizing a petahertz-speed transistor." While some scientific advancements occur under strict conditions, including temperature and pressure, this new transistor performed in ambient conditions — opening the way to commercialization and use in everyday electronics. Hassan is working with Tech Launch Arizona, the office that works with investigators to commercialize inventions stemming from U of A research in order to patent and market innovations.
While the original invention used a specialized laser, the researchers are furthering development of a transistor compatible with commercially available equipment. "I hope we can collaborate with industry partners to realize this petahertz-speed transistor on a microchip," Hassan said.
Thanks to long-time Slashdot reader goslackware for sharing the news.
"A team of scientists, including researchers from the University of Arizona, are working to make that possible." In a groundbreaking international effort, researchers from the Department of Physics in the College of Science and the James C. Wyant College of Optical Sciences demonstrated a way to manipulate electrons in graphene using pulses of light that last less than a trillionth of a second. By leveraging a quantum effect known as tunneling, they recorded electrons bypassing a physical barrier almost instantaneously, a feat that redefines the potential limits of computer processing power. A study published in Nature Communications highlights how the technique could lead to processing speeds in the petahertz range — over 1,000 times faster than modern computer chips. Sending data at those speeds would revolutionize computing as we know it, said Mohammed Hassan, an associate professor of physics and optical sciences. Hassan has long pursued light-based computer technology and previously led efforts to develop the world's fastest electron microscope...
[T]he researchers used a laser that switches off and on at a rate of 638 attoseconds to create what Hassan called "the world's fastest petahertz quantum transistor... For reference, a single attosecond is one-quintillionth of a second," Hassan said. "That means that this achievement represents a big leap forward in the development of ultrafast computer technologies by realizing a petahertz-speed transistor." While some scientific advancements occur under strict conditions, including temperature and pressure, this new transistor performed in ambient conditions — opening the way to commercialization and use in everyday electronics. Hassan is working with Tech Launch Arizona, the office that works with investigators to commercialize inventions stemming from U of A research in order to patent and market innovations.
While the original invention used a specialized laser, the researchers are furthering development of a transistor compatible with commercially available equipment. "I hope we can collaborate with industry partners to realize this petahertz-speed transistor on a microchip," Hassan said.
Thanks to long-time Slashdot reader goslackware for sharing the news.
Comment Re:Makes sense (Score 2) 57
HBO might not mean anything to Gen Z and later but for us Gen X and earlier, there was still a level of prestige associated with the brand.
It was stupid to throw that away.
LK
Comment Re:Little subreddit dictators (Score 1) 103
I called it out on another branch of this discussion but I'm talking about things like, someone posts a question that goes something like this:
"Am I The Asshole for declining a second date with the chick I met on Tinder after she told me she was trans?"
Topics like this are ban honeypots because even getting too close to a verboten position will get you banned by Reddit.
I have seen it. I have been threatened with a ban for expressing the opinion that 8 year old children shouldn't be given sex reassignment surgery.
Reddit is toxic.
LK
Comment Re:Reddit is cancer and a fucking blight on the we (Score 1) 103
I chose that specific example precisely because it's banned on all of reddit. If you say that there is any difference between XX CIS women and XY Trans women, you'll be banned from Reddit.
Ridiculous, right?
LK
Comment Re:Reddit is cancer and a fucking blight on the we (Score 1) 103
Presumably the OP is referring to any number of subs related to women, women who want to date women, or other subreddits where that discussion is completely germane, and yet here you are banging on about beekeeping as though it's somehow relevant in the slightest.
Or general relationship subreddits.
Someone will ask "Am I transphobic for not going on a second date after this chick I met on Tinder told me she was trans?"
It'll be a ban honeypot.
LK
Comment Re:Little subreddit dictators (Score 3, Informative) 103
Good faith disagreements can get you banned from a lot of them.
Someone who is prone to falling in line with group think will likely never encounter it but it's real.
LK
Comment Reddit is cancer and a fucking blight on the web (Score 2, Informative) 103
It's a stupid echo chamber full of stupid people who are chasing stupid agendas.
It's a place where they will permanently ban you for suggesting that there is any difference of any kind between XX CIS women and XY Trans women.
It's a place where you'll be mod bombed into oblivion for saying that you wouldn't want to date a current or former sex worker.
It's a place where honest discourse goes to die.
Seriously, fuck Reddit.
LK
Comment Re:Go ahead with the cheap stuff, then (Score 1) 95
It's worth running the numbers.
In 50,000 years, there could be a whole new crop of coal to repeat this whole cycle all over again.
LK
Comment Re: Pricing tickets to heaven is indeed tricky (Score 1) 95
That's the thing about the eco wackos that really burns my ass.
Nuclear is the only viable option for cheap, clean power and they fight it tooth and nail. Solar and wind are great additions but nuclear would give us everything we need.
They don't want that. They're not pushing for thorium power, they're not pushing to update safety standards. They're fighting to shut it all down.
They're not concerned with saving the environment, they're neo-luddites.
Cheap, clean power would do more than anything else within our reach at the moment to improve the lives of everyone on this planet and they oppose it, have you ever wondered why?
LK
Comment Re:Another solution. (Score 2) 196
What a short-sighted, ignorant, flame-baiting article.
Not to mention, about half of it's assertions about linux are completely false.
Remember Rob Enderle?
Comment Good (Score 1) 38
I hope that now Elon Musk will step in and buy it to get rid of some of the idiotic policies that are in place.
LK
Submission + - Another large Black hole in "our" Galaxy (arxiv.org)
RockDoctor writes: A recent paper on ArXiv reports a novel idea about the central regions of "our" galaxy.
Remember the hoopla a few years ago about radio-astronomical observations producing an "image" of our central black hole — or rather, an image of the accretion disc around the black hole — long designated by astronomers as "Sagittarius A*" (or SGR-A*)? If you remember the image published then, one thing should be striking — it's not very symmetrical. If you think about viewing a spinning object, then you'd expect to see something with a "mirror" symmetry plane where we would see the rotation axis (if someone had marked it). If anything, that published image has three bright spots on a fainter ring. And the spots are not even approximately the same brightness.
This paper suggests that the image we see is the result of the light (radio waves) from SGR-A* being "lensed" by another black hole, near (but not quite on) the line of sight between SGR-A* and us. By various modelling approaches, they then refine this idea to a "best-fit" of a black hole with mass around 1000 times the Sun, orbiting between the distance of the closest-observed star to SGR-A* ("S2" — most imaginative name, ever!), and around 10 times that distance. That's far enough to make a strong interaction with "S2" unlikely within the lifetime of S2 before it's accretion onto SGR-A*.)
The region around SGR-A* is crowded. Within 25 parsecs (~80 light years, the distance to Regulus [in the constellation Leo] or Merak [in the Great Bear]) there is around 4 times more mass in several millions of "normal" stars than in the SGR-A* black hole. Finding a large (not "super massive") black hole in such a concentration of matter shouldn't surprise anyone.
This proposed black hole is larger than anything which has been detected by gravitational waves (yet) ; but not immensely larger — only a factor of 15 or so. (The authors also anticipate the "what about these big black holes spiralling together?" question : quote "and the amplitude of gravitational waves generated by the binary black holes is negligible.")
Being so close to SGR-A*, the proposed black hole is likely to be moving rapidly across our line of sight. At the distance of "S2" it's orbital period would be around 26 years (but the "new" black hole is probably further out than than that). Which might be an explanation for some of the variability and "flickering" reported for SGR-A* ever since it's discovery.
As always, more observations are needed. Which, for SGR-A* are frequently being taken, so improving (or ruling out) this explanation should happen fairly quickly. But it's a very interesting, and fun, idea.
Remember the hoopla a few years ago about radio-astronomical observations producing an "image" of our central black hole — or rather, an image of the accretion disc around the black hole — long designated by astronomers as "Sagittarius A*" (or SGR-A*)? If you remember the image published then, one thing should be striking — it's not very symmetrical. If you think about viewing a spinning object, then you'd expect to see something with a "mirror" symmetry plane where we would see the rotation axis (if someone had marked it). If anything, that published image has three bright spots on a fainter ring. And the spots are not even approximately the same brightness.
This paper suggests that the image we see is the result of the light (radio waves) from SGR-A* being "lensed" by another black hole, near (but not quite on) the line of sight between SGR-A* and us. By various modelling approaches, they then refine this idea to a "best-fit" of a black hole with mass around 1000 times the Sun, orbiting between the distance of the closest-observed star to SGR-A* ("S2" — most imaginative name, ever!), and around 10 times that distance. That's far enough to make a strong interaction with "S2" unlikely within the lifetime of S2 before it's accretion onto SGR-A*.)
The region around SGR-A* is crowded. Within 25 parsecs (~80 light years, the distance to Regulus [in the constellation Leo] or Merak [in the Great Bear]) there is around 4 times more mass in several millions of "normal" stars than in the SGR-A* black hole. Finding a large (not "super massive") black hole in such a concentration of matter shouldn't surprise anyone.
This proposed black hole is larger than anything which has been detected by gravitational waves (yet) ; but not immensely larger — only a factor of 15 or so. (The authors also anticipate the "what about these big black holes spiralling together?" question : quote "and the amplitude of gravitational waves generated by the binary black holes is negligible.")
Being so close to SGR-A*, the proposed black hole is likely to be moving rapidly across our line of sight. At the distance of "S2" it's orbital period would be around 26 years (but the "new" black hole is probably further out than than that). Which might be an explanation for some of the variability and "flickering" reported for SGR-A* ever since it's discovery.
As always, more observations are needed. Which, for SGR-A* are frequently being taken, so improving (or ruling out) this explanation should happen fairly quickly. But it's a very interesting, and fun, idea.
Submission + - Surado, formerly Slashdot Japan, is closing at the end of the month. (srad.jp) 1
AmiMoJo writes: Slashdot Japan was launched on May 28, 2001. On 2025/03/31, it will finally close. Since starting the site separated from the main Slashdot one, and eventually rebranded as "Surado", which was it's Japanese nickname.
Last year the site stopped posting new stories, and was subsequently unable to find a buyer. In a final story announcing the end, many users expressed their sadness and gratitude for all the years of service.
Last year the site stopped posting new stories, and was subsequently unable to find a buyer. In a final story announcing the end, many users expressed their sadness and gratitude for all the years of service.
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