It’s hard to read the headlines today without feeling like the world couldn’t possibly get much worse. And then tomorrow rolls around, and a fresh set of headlines puts the lie to that thought. On a macro level, there’s not much that you can do about that, but on a personal level, illustrating your news feed with mostly wrong, AI-generated images might take the edge off things a little.
Let us explain. [Roy van der Veen] liked the idea of an e-paper display newsfeed, but the crushing weight of the headlines was a little too much to bear. To lighten things up, he decided to employ Stable Diffusion to illustrate his feed, displaying both the headline and a generated image on a 7.3″ Inky 7-color e-paper display. Every five hours, a script running on a Raspberry Pi Zero 2W fetches a headline from a random source — we’re pleased the list includes Hackaday — and composes a prompt for Stable Diffusion based on the headline, adding on a randomly selected prefix and suffix to spice things up. For example, a prompt might look like, “Gothic painting of (Driving a Motor with an Audio Amp Chip). Gloomy, dramatic, stunning, dreamy.” You can imagine the results.
We have to say, from the examples [Roy] shows, the idea pretty much works — sometimes the images are so far off the mark that just figuring out how Stable Diffusion came up with them is enough to soften the blow. We’d have preferred if the news of the floods in Libya had been buffered by a slightly less dismal scene, but finding out that what was thought to be a “ritual mass murder” was really only a yoga class was certainly heartening.
At this point, you gotta figure that you’re at least being listened to almost everywhere you go, whether it be a home assistant or your very own phone. So why not roll with the punches and turn lemons into something like a still life of lemons that’s a bit wonky? What we mean is, why not take our conversations and use AI to turn them into art? That’s the idea behind this next-generation digital photo frame created by [TheMorehavoc].
Essentially, it uses a Raspberry Pi and a Respeaker four-mic array to listen to conversations in the room. It listens and records 15-20 seconds of audio, and sends that to the OpenWhisper API to generate a transcript.
This repeats until five minutes of audio is collected, then the entire transcript is sent through GPT-4 to extract an image prompt from a single topic in the conversation. Then, that prompt is shipped off to Stable Diffusion to get an image to be displayed on the screen. As you can imagine, the images generated run the gamut from really weird to really awesome.
The natural lulls in conversation presented a bit of a problem in that the transcription was still generating during silences, presumably because of ambient noise. The answer was in voice activity detection software that gives a probability that a voice is present.
Naturally, people were curious about the prompts for the images, so [TheMorehavoc] made a little gallery sign with a MagTag that uses Adafruit.io as the MQTT broker. Build video is up after the break, and you can check out the images here (warning, some are NSFW).
The European Commission has imposed a €376.36 million ($400 million) fine on Intel for blocking the sales of devices powered by its competitors’ x86 CPUs. This brings one part of the company’s long-running antitrust court battle with the European authority to a close. If you’ll recall, the Commission slapped the chipmaker with a record-breaking €1.06 billion ($1.13 billion) fine in 2009 after it had determined that Intel abused its dominant position in the market. ye
It found back then that the company gave hidden rebates and incentives to manufacturers like HP, Dell and Lenovo for buying all or almost all their processors from Intel. The Commission also found that Intel paid manufacturers to delay or to completely cease the launch of products powered by its rivals’ CPUs “naked restrictions.” Other times, Intel apparently paid companies to limit those products’ sales channels. The Commission calls these actions “naked restrictions.”
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In its announcement, the European Commission gave a few examples of how Intel hindered the sales of competing products. It apparently paid HP between November 2002 and May 2005 to sell AMD-powered business desktops only to small- and medium-sized enterprises and via direct distribution channels. It also paid Acer to delay the launch of an AMD-based notebook from September 2003 to January 2004. Intel paid Lenovo to push back the launch of AMD-based notebooks for half a year, as well.
The Commission has since appealed the General Court’s decision to dismiss the part of the case related to the rebates Intel offered its clients. Intel, however, did not lodge an appeal for the court’s ruling on naked restrictions, setting it in stone. “With today’s decision, the Commission has re-imposed a fine on Intel only for its naked restrictions practice,” the European authority wrote. “The fine does not relate to Intel’s conditional rebates practice. The fine amount, which is based on the same parameters as the 2009 Commission’s decision, reflects the narrower scope of the infringement compared to that decision.” Seeing as the rebates part of the case is under appeal, Intel could still pay the rest of the fine in the future.
NASA’s Parker Solar Probe has racked up an impressive list of superlatives in its first five years of operations: It’s the closest spacecraft to the sun, the fastest human-made object and the first mission to ever “touch the sun.”
Now, Parker has one more feather to add to its sun-kissed cap: It’s the first spacecraft ever to fly through a powerful solar explosion near the sun.
As detailed in a new study published Sept. 5 in The Astrophysical Journal—exactly one year after the event occurred—Parker Solar Probe passed through a coronal mass ejection (CME).
These fierce eruptions can expel magnetic fields and sometimes billions of tons of plasma at speeds ranging from 60 to 1,900 miles (100 to 3,000 kilometers) per second. When directed toward Earth, these ejections can bend and mold our planet’s magnetic field, generating spectacular auroral shows and, if strong enough, potentially devastate satellite electronics and electrical grids on the ground.
Cruising on the far side of the sun just 5.7 million miles (9.2 million kilometers) from the solar surface—22.9 million miles (36.8 million kilometers) closer than Mercury ever gets to the sun—Parker Solar Probe first detected the CME remotely before skirting along its flank. The spacecraft later passed into the structure, crossing the wake of its leading edge (or shock wave), and then finally exited through the other side.
A composite of images collected by Parker Solar Probe’s Wide-field Imager for Solar Probe (WISPR) instrument captures the moment the spacecraft passed through a coronal mass ejection (CME) on Sept. 5, 2022. The event becomes visible at 0:14 seconds. The sun, depicted on the left, comes closest on Sept. 6, when Parker reached its 13th perihelion. The sound in the background is magnetic field data converted into audio. Credit: NASA/Johns Hopkins APL/Naval Research Laboratory/Brendan Gallagher/Guillermo Stenborg/Emmanuel Masongsong/Lizet Casillas/Robert Alexander/David Malaspina
In all, the sun-grazing spacecraft spent nearly two days observing the CME, providing physicists an unparalleled view into these stellar events and an opportunity to study them early in their evolution.
“This is the closest to the sun we’ve ever observed a CME,” said Nour Raouafi, the Parker Solar Probe project scientist at the Johns Hopkins Applied Physics Laboratory (APL) in Laurel, Maryland, which built the spacecraft within NASA’s timeline and budget, and currently manages and operates the mission. “We’ve never seen an event of this magnitude at this distance.”
The CME on Sept. 5, 2022, was an extreme one. As Parker passed behind the shock wave, its Solar Wind Electrons, Alphas and Protons (SWEAP) instrument suite clocked particles accelerating up to 840 miles (1,350 kilometers) per second. Had it been directed toward Earth, Raouafi suspects it would have been close in magnitude to the Carrington Event—a solar storm in 1859 that is held as the most powerful on record to hit Earth.
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More information: O. M. Romeo et al, Near-Sun In Situ and Remote-sensing Observations of a Coronal Mass Ejection and its Effect on the Heliospheric Current Sheet, The Astrophysical Journal (2023). DOI: 10.3847/1538-4357/ace62e
A recent study submitted to Acta Astronautica explores the potential for using aerographite solar sails for traveling to Mars and interstellar space, which could dramatically reduce both the time and fuel required for such missions. This study comes while ongoing research into the use of solar sails is being conducted by a plethora of organizations along with the successful LightSail2 mission by The Planetary Society, and holds the potential to develop faster and more efficient propulsion systems for long-term space missions.
“Solar sail propulsion has the potential for rapid delivery of small payloads (sub-kilogram) throughout the solar system,” Dr. René Heller, who is an astrophysicist at the Max Planck Institute for Solar System Research and a co-author on the study, tells Universe Today. “Compared to conventional chemical propulsion, which can bring hundreds of tons of payload to low-Earth orbit and deliver a large fraction of that to the Moon, Mars, and beyond, this sounds ridiculously small. But the key value of solar sail technology is speed.”
Unlike conventional rockets, which rely on fuel in the form of a combustion of chemicals to exert an external force out the back of the spacecraft, solar sails don’t require fuel. Instead, they use sunlight for their propulsion mechanism, as the giant sails catch solar photons much like wind sails catching the wind when traveling across water. The longer the solar sails are deployed, the more solar photons are captured, which gradually increases the speed of the spacecraft.
For the study, the researchers conducted simulations on how fast a solar sail made of aerographite with a mass up to 1 kilogram (2.2 pounds), including 720 grams of aerographite with a cross-sectional area of 104 square meters, could reach Mars and the interstellar medium, also called the heliopause, using two trajectories from Earth known as direct outward transfer and inward transfer methods, respectively.
The direct outward transfer method for both the trip to Mars and the heliopause involved the solar sail both deploying and departing directly from a polar orbit around the Earth. The researchers determined that Mars being in opposition (directly opposite Earth from the Sun) at the time of solar sail deployment and departure from Earth would yield the best results for both velocity and travel time. This same polar orbit deployment and departure was also used for the heliopause trajectory, as well. For the inward transfer method, the solar sail would be delivered to approximately 0.6 astronomical units (AU) from the Sun via traditional chemical rockets, where the solar sail would deploy and begin its journey to either Mars or the heliopause. But how does an aerographite solar sail make this journey more feasible?
Image taken by The Planetary Society’s LightSail 2 on 25 November 2019 during its mission orbiting the Earth. The curved appearance of the sails is from the spacecraft’s 185-degree fisheye camera lens, and the image was processed with color-correction along with removal of parts of the distortion. (Credit: The Planetary Society)
“With its low density of 0.18 kilograms per cubic meter, aerographite undercuts all conventional solar sail materials,” Julius Karlapp, who is a Research Assistant at the Dresden University of Technology and lead author of the study, tells Universe Today. “Compared to Mylar (a metallized polyester foil), for example, the density is four orders of magnitude smaller. Assuming that the thrust developed by a solar sail is directly dependent on the mass of the sail, the resulting thrust force is much higher. In addition to the acceleration advantage, the mechanical properties of aerographite are amazing.”
Through these simulations, the researchers found the direct outward transfer method and inward transfer method resulted in the solar sail reaching Mars in 26 days and 126 days, respectively, with the first 103 days being the travel time from Earth to the deployment point at 0.6 AU. For the journey to the heliopause, both methods resulted in 5.3 years and 4.2 years, respectively, with the first 103 days of the inward transfer method also being devoted to the travel time from the Earth to the deployment point at 0.6 AU, as well. The reason the heliopause is reached in a faster time with the inward transfer method is due to the solar sail achieving maximum speed at 300 days, as opposed to achieving maximum speed with the outward transfer method at approximately 2 years.
Current travel times to Mars range between 7-9 months, which only happens during specified launch windows every two years while relying on the positions of both planets to be aligned at both launch and arrival of any spacecraft going to, or coming from, Mars. Estimating current travel times to the heliopause can be done using NASA’s Voyager 1 and Voyager 2 probes, which reached the heliopause at approximately 35 years and 41 years, respectively.
The researchers note that one major question of using solar sails is deceleration, or slowing down, upon arriving at the destination, specifically Mars, and while they mention aerocapture as one solution, they admit this still requires further study.
“Aerocapture maneuvers for hyperbolic trajectories (like flying from Earth to Mars) use the atmosphere to gradually reduce velocity due to drag,” Dr. Martin Tajmar, who is a physicist and Professor of Space System at the Dresden University of Technology and a co-author on the study, tells Universe Today. “Therefore, less fuel is required to enter the Martian orbit. We use this braking maneuver to eliminate the need for additional braking thrusters, which in turn reduces the mass of the spacecraft. We’re currently researching what alternative strategies might work for us. Yet the braking method is only one of many different challenges we are currently facing.”
While solar sail technology has been proposed by NASA as far back as the 1970s, a recent example of solar sail technology is the NASA Solar Cruiser, which is currently scheduled to launch in February 2025.
What new discoveries will researchers make about solar sail technology in the coming years and decades? Only time will tell, and this is why we science!
OSIRIS-REx weighs 4,650 pounds (or 2,110 kg). On September 8th of 2016, NASA first launched the spacecraft on its 3.8-billion mile mission to land on an asteroid and retrieve a sample.
That sample has just returned.
Throughout Sunday morning, NASA tweeted historic updates from the sample’s landing site in Utah. “We’ve spotted the #OSIRISREx capsule on the ground,” they announced about 80 minutes ago (including a 23-second video clip). “The parachute has separated, and the helicopters are arriving at the site. We’re ready to recover that sample!”
UPI notes that the capsule “reached temperatures up to 5,000 degrees Fahrenheit during reentry, so protective masks and gloves are required to handle it,” describing its payload as “a 250-gram dust sample.”
15 minutes later NASA shared footage of “the first persons to come into contact with this hardware since it was on the other side of the solar system.” A recovery team approached the capsule to perform an environmental safety sweep confirming there were no hazardous gas.
“The impossible became possible,” NASA administrator Bill Nelson said in a statement. The Guardian reports he confirmed the capsule “brought something extraordinary — the largest asteroid sample ever received on Earth.
“It’s going to help scientists investigate planet formation, it’s going to improve our understanding of the asteroids that could possibly impact the earth and it will deepen our understanding of the origin of our solar system and its formation.”
“This mission proves that NASA does big things, things that have inspired us, things that unite us…
“The mission continues with incredible science and analysis to come. But I want to thank you all, for everybody that made this Osiris-Rex mission possible.”
Professor Neil Bowles of the University of Oxford, one of the scientists who will study the sample, told the Guardian that he was excited to see the sample heading to the clean room at Johnson Space Center. “So much new science to come!”
And that 4,650-pound spacecraft is still hurtling through space. 20 minutes after delivering its sample, the craft ” fired its engines to divert past Earth toward its new mission to asteroid Apophis,” NASA reports. The name of its new mission? OSIRIS-APEX. Roughly 1,000 feet wide, Apophis will come within 20,000 miles of Earth — less than one-tenth the distance between Earth and the Moon — in 2029. OSIRIS-APEX is scheduled to enter orbit of Apophis soon after the asteroid’s close approach of Earth to see how the encounter affected the asteroid’s orbit, spin rate, and surface.
Amazon has always handled its streaming video slate a little differently than the competition. Other companies have slyly introduced a cheaper ad-free option while slowly raising prices on non-ad-based subscription tiers, Prime Video is taking a different tack. The streaming service plans to hold ad-free watching hostage, and it’s demanding a $3 ransom starting early next year.
In a Friday release, Amazon said it would start adding “limited advertisements” to Prime Video starting out in 2024. The company promised fewer ads than other streaming TV providers or old-school linear TV. This change will impact all users in the U.S., UK, Germany, and Canada. Other regions won’t have long to savor the lack of ads, as eventually more places like France, Italy, Spain, Mexico, and Australia will all have ads shoved in front of their unwilling eyeballs.
But don’t worry, all you have to do to help ignore all the ads is slip Amazon an extra $3 a month for a new ad-free option, at least for U.S. Prime members. That bumps the monthly cost of Prime to $18 from $15 a month. Users should get a message in their emails about how they can sign up for Amazon’s latest penny-pinching plan several weeks before ads start flooding Prime Video.
