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GPUHammer: Rowhammer attacks on GPU memories are practical

news.ycombinator.com Unknown 2025-07-27 11:05:45

GPUHammer: Rowhammer Attacks on GPU Memories are Practical # Chris (Shaopeng) Lin†, Joyce Qu†, Gururaj Saileshwar, from University of Toronto Published at USENIX Security 2025 (link to paper). Artifact available on GitHub and Zenodo. † equal contribution GPUHammer is the first attack to show Rowhammer bit flips on GPU memories, specifically on a GDDR6 memory in an NVIDIA A6000 GPU. Our attacks induce bit flips across all tested DRAM banks, despite in-DRAM defenses like TRR, using user-level C

Topics: bit dram flips gpu memory

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New sphere-packing record stems from an unexpected source

news.ycombinator.com Joseph Howlett 2025-08-11 03:19:13

The advantage of Rogers’ method was that you didn’t have to start with a particularly efficient lattice to get an efficient sphere packing. You just had to choose the right ellipsoid. But this introduced a new complication. Unlike a sphere, which is completely defined by a single number — its radius — an ellipsoid is defined by several axes of different lengths. The higher the dimension, the greater the number of directions you can stretch your ellipsoid in, and the more options you have for wha

Topics: ellipsoid klartag packing rogers sphere

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Show HN: A cross-platform terminal emulator written in Java

news.ycombinator.com Unknown 2025-08-10 07:11:01

ForceTerm The Terminal Strikes Back. Fully featured terminal based on jediterm. Usage Download and run a binary Head over to the releases section. We provide MSI installers for Windows, zipped appliation bundles for macOS and AppImage self-contained executables for Linux. Run from source There are two ways to run the application from source. Variant 1 (Linux and macOS only): ./gradlew clean create ./scripts/forceterm Variant 2 (cross-platform): ./gradlew pinpitRun Hacking To work on

Topics: create eclipse gradlew project release

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Substack brings new updates to livestreaming as it increases video push

techcrunch.com Lauren Forristal 2025-08-17 11:09:47

Over the past year, Substack has considerably expanded its video tools for creators, evolving from a platform primarily dedicated to newsletters. On Wednesday, Substack announced new features aimed at helping publishers grow and promote their livestreams. The recent update enables creators to share clips of their live videos on Notes, and Substack will notify them in real time about the performance. This way, publishers can determine which clips they should upload to other platforms, such as Yo

Topics: clips new publishers substack video

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Jacobi Ellipsoid

news.ycombinator.com Unknown 2025-08-19 23:27:58

Shape taken by a self-gravitating fluid body rotating at constant velocity Artistic rendering of Haumea, a dwarf planet with triaxial ellipsoid shape. A Jacobi ellipsoid is a triaxial (i.e. scalene) ellipsoid under hydrostatic equilibrium which arises when a self-gravitating, fluid body of uniform density rotates with a constant angular velocity. It is named after the German mathematician Carl Gustav Jacob Jacobi.[1] History [ edit ] Before Jacobi, the Maclaurin spheroid, which was formulate

Topics: axes displaystyle ellipsoid frac jacobi

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Master your clipboard history and supercharge your productivity

techspot.com Unknown 2025-08-26 11:26:00

ClipClip makes it possible to copy multiple texts, images or files to your clipboard. You can then browse or search through these Latest Clips, or convert them to Saved Clips so you can assign a title and organize them into folders for later re-use. By pressing CTRL + SHIFT + V you get a list of all your clips so you can paste without losing focus of what you were working on. Whether you're an engineer, lawyer, manager, executive, accountant, salesperson, office clerk, customer support rep or j

Topics: clipclip clips folders image text

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Philips Hue lighting will be more expensive starting July 1st, but you can save on them now

theverge.com Brandt Ranj 2025-08-28 19:56:03

Signify has announced price increases for its Philips Hue smart lighting and accessories starting on July 1st due to US tariffs. As for how much the products will go up in price, that hasn’t been confirmed, but the Hue Wall Washer that was recently launched is 10 percent more expensive than its price in the EU, which may offer an indication of what to expect. If you’ve been meaning to try Philips Hue smart bulbs, or add to your existing collection, this may be your last chance to snag products b

Topics: hue philips price products smart

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Playing First Contact in Eclipse, a 3-Day Sci-Fi Larp

news.ycombinator.com .Wp-Block-Comment-Author-Name Box-Sizing Border-Box 2025-08-28 02:02:23

Eclipse is a three-day sci-fi larp set in 2059. Earth has been wracked by environmental disasters, leading to widespread civil war. Humanity’s hopes lie in the Eclipse space programme, established to find a new home using wormhole technology. When the larp begins, all 150 players are in a base on Gliese 628A, one of seven candidate planets for colonisation. The three days take place in real time as the base initiates first contact with aliens. Like Arrival and Interstellar, twin inspirations fo

Topics: eclipse game larp people players

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Philips Hue bulbs will be even more expensive in July. And it may not end there.

arstechnica.com Unknown 2025-08-31 03:07:34

Philips is upping the prices of its popular and already-expensive Hue series of smart lighting products starting July 1. The company is blaming tariffs for the changes and has suggested that prices could go up even higher after the initial bump in July. Philips started informing its customers via an email marketing message earlier this month that prices would go up and urged people to buy Hue lighting sooner rather than later. In a statement to the Hueblog website, Philips’ parent company, Sig

Topics: hue hueblog philips prices products

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Philips Hue lighting is getting even more expensive on July 1 as a ‘direct result’ of tariffs

9to5mac.com Ben Schoon 2025-08-31 11:49:13

In the smart home world, Philips Hue already has some of the more expensive options, and now those prices are going even higher thanks to US tariffs. Over the past few weeks, Philips Hue has been advertising a 25% off sale to its customers via email with the added detail that “Our prices increase on July 1.” Signify, the company behind the Philips Hue brand, has now expanded on what this means. Speaking to HueBlog, Signify says that Philips Hue will “increase prices” in the US starting on Jul

Topics: hue philips prices products tariffs

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5 Best Lip Balms to Try in 2025, All Tested in Tough Conditions

wired.com Boutayna Chokrane 2025-08-31 11:14:00

Honorable Mentions Burt's Bees Beeswax Lip Balm for $4: If you're ingredient-conscious, Burt's Bees has probably been in your tote at some point. The original formula blends beeswax, coconut oil, sunflower seed oil, and peppermint oil. No petroleum, no parabens, and you can find it just about everywhere. That said, the beeswax forms a solid barrier but is not the most hydrating, especially during the dead of winter. The balm coats but doesn't penetrate, which means it won't do much for lips tha

Topics: ingredients lip lips oil skin

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Scientists Line Up Satellites to Create "Artificial Total Solar Eclipse"

futurism.com Unknown 2025-09-07 14:30:35

Two satellites just carefully lined up to form a perfect "artificial total solar eclipse" in orbit. Earlier this year, the two probes, which are part of the European Space Agency's Proba-3 mission, positioned themselves in a perfect line 492 feet apart to have one of them perfectly obfuscate the Sun's rays. Impressively, they were able to maintain their position with an accuracy down to the millimeter. The outermost satellite then snapped fascinating pictures of the Sun's corona, the outermos

Topics: corona eclipse images solar sun

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Google is adding the Veo 3 video generator to YouTube to slopify Shorts

engadget.com Unknown 2025-09-09 23:53:39

Google will integrate the Veo 3 video generation tool into YouTube Shorts later this summer. This was revealed by YouTube CEO Neal Mohan at a keynote during the Cannes Lions film festival that was transcribed by The Hollywood Reporter . This means that creators will be able to whip up endless clips via prompts, as Mohan said "the possibilities with AI are limitless." He went on to opine that "anyone with a story to share can turn their dream into a career" and "anyone with a voice can bring peo

Topics: ai clips ll veo youtube

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Facebook videos are all just going to be reels now

engadget.com Unknown 2025-09-11 14:58:07

Facebook is once again rebranding the "video" section of its app. This time, the tab formerly known as " video ," which was also once called " watch ," will become "reels." The change comes as the company says that all video on the social network will now fall under the umbrella of "reels" regardless of how long the clip is or how it was shot. According to Meta , the change will make things simpler for users and creators sharing video clips on the platform. Previously, users had to decide wheth

Topics: clips long meta reels video

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Philips’ new ambient wall light is now available

theverge.com Andrew Liszewski 2025-09-12 03:06:00

is a senior reporter who’s been covering and reviewing the latest gadgets and tech since 2006, but has loved all things electronic since he was a kid. Signify has officially announced its new Philips Hue Play Wall Washer light, which was previously leaked by Amazon UK earlier this month. The company has also launched its new Philips Hue AI assistant in the Netherlands, Belgium, and Luxembourg, with a broader global release expected by the end of August. Available now in Europe, the US, and Can

Topics: hue light philips wall washer

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Philips Fidelio FB1 soundbar is just for audiophiles, and it's on sale

zdnet.com Allison Murray 2025-09-14 07:36:00

Allison Murray/ZDNET You can buy the Philips Fidelio FB1 soundbar for $300 ($100 off) on Amazon. ZDNET's key takeaways The Philips Fidelio FB1 soundbar retails for $400. This soundbar comes with plenty of customizable EQ options to fully optimize your sound for whatever you're listening to. It's large in size, and the setup can be a little complicated. Good sound is easily detectable -- you know it when you hear it. While the Philips Fidelio FB1 soundbarproduces dynamic sound, it lacks th

Topics: best philips sound soundbar tv

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Twitch streamers' uploads and highlights can no longer exceed 100 hours

engadget.com Unknown 2025-06-04 10:30:18

Twitch is putting a cap on how much storage a streamer can take up for their uploads and highlight videos. The streaming service has announced that starting on April 19, all uploads and highlights will count towards a new 100-hour storage limit for each streamer, whether the videos are published or not. To note, the cap doesn't apply to past broadcasts, which are previous livestreams saved to a streamer's account for on-demand viewing, or clips, which are minute-long segments that can be shared

Topics: clips highlights service uploads videos

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Latest Tech News

GPUHammer: Rowhammer attacks on GPU memories are practical

New sphere-packing record stems from an unexpected source

Show HN: A cross-platform terminal emulator written in Java

Substack brings new updates to livestreaming as it increases video push

Jacobi Ellipsoid

Master your clipboard history and supercharge your productivity

Philips Hue lighting will be more expensive starting July 1st, but you can save on them now

Playing First Contact in Eclipse, a 3-Day Sci-Fi Larp

Philips Hue bulbs will be even more expensive in July. And it may not end there.

Philips Hue lighting is getting even more expensive on July 1 as a ‘direct result’ of tariffs

5 Best Lip Balms to Try in 2025, All Tested in Tough Conditions

Scientists Line Up Satellites to Create "Artificial Total Solar Eclipse"

Google is adding the Veo 3 video generator to YouTube to slopify Shorts

Facebook videos are all just going to be reels now

Philips’ new ambient wall light is now available

Philips Fidelio FB1 soundbar is just for audiophiles, and it's on sale

Twitch streamers' uploads and highlights can no longer exceed 100 hours

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