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Piano Keys

news.ycombinator.com Unknown 2025-07-15 21:50:17

Piano Keys If you've ever looked closely at a piano keyboard you may have noticed that the widths of the white keys are not all the same at the back ends (where they pass between the black keys). Of course, if you think about it for a minute, it's clear they couldn't possibly all be the same width, assuming the black keys are all identical (with non-zero width) and the white keys all have equal widths at the front ends, because the only simultaneous solution of 3W=3w+2b and 4W=4w+3b is with b=0

Topics: black discrepancy keys white widths

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Bizarre "Infinity Galaxy" Could Hold the Secrets of Supermassive Black Holes

futurism.com Unknown 2025-07-19 15:45:01

Astronomers using data collected by the James Webb Space Telescope have discovered a spectacular cosmic object they're calling the "Infinity Galaxy." The site of an epic head-on collision between two galaxies, it could harbor the secrets to how the heaviest black holes in the universe, the supermassive black holes found at the hearts of galaxies, are born and reach their unbelievable masses — masses extreme enough to organize trillions of stars around them. "Everything is unusual about this ga

Topics: black hole holes supermassive van

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‘Suzzanna: The Queen of Black Magic’ Is a Colorful Portrait of a Cult Horror Legend

gizmodo.com Cheryl Eddy 2025-07-22 08:00:52

Suzzanna: The Queen of Black Magic offers an excellent introduction to the Indonesian movie legend, but it’s a fun watch even if you’re already familiar with her work. Just about the only prerequisite for enjoyment is being a horror fan, because David Gregory’s documentary is packed with clips from Suzzanna’s gloriously over-the-top filmography, especially her much-loved early-’80s entries. “The Queen of Indonesian Horror,” as she came to be known, was born during World War II; she knew from an

Topics: black indonesian magic queen suzzanna

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Nomad drops new Carbon Black Rocky Point band for Apple Watch

9to5mac.com Fernando Silva 2025-07-25 16:01:28

It’s no secret that Nomad makes some of the best and highest-quality Apple Watch bands out there. They use premium materials, whether it’s for their sport bands or the titanium bands. They make bands that are made to last in any environment. Today, they are back with a new special edition Rocky Point Band in a stunning Carbon Black finish. Here is what you need to know. Carbon Black Rocky Point band Nomad introduced their new Rocky Point line of Apple Watch bands about a year ago, and it’s one

Topics: band bands black carbon nomad

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The Absolute Best Horror Movies to Watch on Hulu

cnet.com See Full Bio 2025-07-27 04:00:05

Reserve your seat for this surreal psychological horror movie about a talented ballerina's unraveling. Natalie Portman's character Nina feels pressure to embody not only the innocent and elegant White Swan but the dark and sensual Black Swan for the leading part in a production of Swan Lake. But she doesn't fit the latter swan's mold as much as newcomer Lily (Mila Kunis). The film follows her obsessive hunt for perfection.

Topics: ballerina black character doesn swan

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Webb spots 'Infinity Galaxy' that sheds light on black hole formation

engadget.com Unknown 2025-07-27 20:39:00

Discoveries keep pouring out of the James Webb Space Telescope (JWST). Researchers observed an unusual cluster, which they dubbed the Infinity Galaxy. It appears to support a leading theory on how some supermassive black holes form. Although "Infinity Galaxy" sounds like a place Thanos would hang out, it merely describes its appearance. Two compact, red nuclei, each surrounded by a ring, give the cluster the shape of an infinity symbol. What's inside is more interesting. (After all, this is a

Topics: black galaxy hole infinity supermassive

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LIGO detects most massive black hole merger to date

news.ycombinator.com Unknown 2025-07-29 15:06:51

The LIGO-Virgo-KAGRA (LVK) Collaboration has detected the merger of the most massive black holes ever observed with gravitational waves using the US National Science Foundation (NSF)-funded LIGO observatories. The powerful merger produced a final black hole approximately 225 times the mass of our Sun. The signal, designated GW231123, was detected during the fourth observing run of the LVK network on November 23, 2023. LIGO, the Laser Interferometer Gravitational-wave Observatory, made history i

Topics: black collaboration gravitational holes ligo

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LIGO Detects Most Massive Black Hole Merger to Date

news.ycombinator.com Unknown 2025-07-29 20:06:51

The LIGO-Virgo-KAGRA (LVK) Collaboration has detected the merger of the most massive black holes ever observed with gravitational waves using the US National Science Foundation (NSF)-funded LIGO observatories. The powerful merger produced a final black hole approximately 225 times the mass of our Sun. The signal, designated GW231123, was detected during the fourth observing run of the LVK network on November 23, 2023. LIGO, the Laser Interferometer Gravitational-wave Observatory, made history i

Topics: black collaboration gravitational holes ligo

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Merger of two massive black holes is one for the record books

arstechnica.com Unknown 2025-07-29 20:30:23

Physicists with the LIGO/Virgo/KAGRA collaboration have detected the gravitational wave signal (dubbed GW231123) of the most massive merger between two black holes yet observed, resulting in a new black hole that is 225 times more massive than our Sun. The results were presented at the Edoardo Amaldi Conference on Gravitational Waves in Glasgow, Scotland. The LIGO/Virgo/KAGRA collaboration searches the universe for gravitational waves produced by the mergers of black holes and neutron stars. LI

Topics: black gravitational ligo neutron virgo

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Scientists Detect Sign of Something Impossible Out in Deep Space

futurism.com Unknown 2025-07-30 03:36:51

The very concept of black holes seems improbable. Albert Einstein infamously refused to believe they could exist, even though his theory of general relativity was instrumental in predicting them. Now, scientists have witnessed evidence of something about these baffling cosmic monstrosities that further stretches the boundaries of both physics and credulity: a titanic collision of two already enormous black holes so utterly extreme that it has scientists wondering if the event they seem to have

Topics: black hole holes mass merger

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Black hole merger challenges our understanding of black hole formation

news.ycombinator.com Gayoung Lee 2025-07-31 07:38:20

Gravitational waves—ripples in space-time caused by violent cosmic events—travel at the speed of light in every direction, eventually fading out like ripples in water. But some events are so destructive and extreme that they create disturbances in spacetime more like powerful waves than small ripples, with enough energy to reach our own detectors here on Earth. Today, the LIGO Collaboration announced the detection of the most colossal black hole merger known to date, the final product of which

Topics: black gravitational hole ligo waves

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Astronomers Detect a Black Hole Merger That’s So Massive It Shouldn’t Exist

gizmodo.com Gayoung Lee 2025-07-31 06:01:09

Gravitational waves—ripples in space-time caused by violent cosmic events—travel at the speed of light in every direction, eventually fading out like ripples in water. But some events are so destructive and extreme that they create disturbances in spacetime more like powerful waves than small ripples, with enough energy to reach our own detectors here on Earth. Today, the LIGO Collaboration announced the detection of the most colossal black hole merger known to date, the final product of which

Topics: black gravitational hole ligo waves

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Best Black Friday in July 2025 deals at Best Buy: The best offers that end tomorrow

zdnet.com Allison Jewell 2025-07-31 04:51:24

Tech prices are getting harder and harder to stomach, but there are times you can catch a break. Luckily, Best Buy is giving you your chance to save this summer. Big-ticket items like the M3 MacBook Pro, Samsung The Frame TV, and Beats Studio Pro are discounted by hundreds of dollars. Get daily deals straight to your inbox during Prime Day when you sign up for ZDNET Recommends, your one-stop newsletter for the sale. Also: The best Prime Day deals so far Best Buy's Black Friday in July sale be

Topics: best black buy deals july

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Sony will have gorgeous PlayStation 5 bundles for Ghost of Yōtei

engadget.com Unknown 2025-08-02 15:59:56

Engadget has been testing and reviewing consumer tech since 2004. Our stories may include affiliate links; if you buy something through a link, we may earn a commission. Read more about how we evaluate products . Ghost of Yōtei is one of Sony's bigger AAA releases this year, and the company is marking the upcoming launch with gorgeous bundles of its current consoles. There are two versions of the themed bundle, each giving an aesthetic nod to a form of Japanese art. The version inspired by kint

Topics: black cover gold playstation version

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Windows 11’s new Black Screen of Death is now rolling out

theverge.com Tom Warren 2025-08-03 12:50:28

is a senior editor and author of Notepad , who has been covering all things Microsoft, PC, and tech for over 20 years. Microsoft is now starting to change its Blue Screen of Death (BSOD) to a newly designed black version. It’s the first major change to the BSOD since Microsoft added a sad face to the screen in Windows 8, and Microsoft is now removing that frowning face and QR code in favor of a more simplified black screen. The new BSOD is rolling out to Windows 11 Release Preview users today,

Topics: black bsod microsoft screen windows

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Show HN: I built a playground to showcase what Flux Kontext is good at

news.ycombinator.com Unknown 2025-08-04 21:10:08

" A black T-shirt horizontally floating in the air, descending from the ceiling to the floor, appearing weightless. No people in the frame, full of surrealism and unaffected by gravity. Soft lighting, simple and elegant style. Grey background. Make it suitable as a product display image for a boutique. "

Topics: air appearing background black boutique

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‘Lord of the Rings Online’ Players Successfully Get Small Hobbit Army Lost Inside Mount Doom

gizmodo.com James Whitbrook 2025-08-05 08:25:13

MMORPG players love making challenges for themselves beyond the actual challenges offered by their games. Setting artificial level caps, soloing content designed for groups, empowering yourself through ways outside of the typical grind—you name it, someone has probably tried it in an MMO. But a group of Lord of the Rings Online players have managed an impossibility that triumphantly shows the source material’s thematic heart of hope in the face of despair so perfectly Tolkien could’ve come up wi

Topics: burkeblack hobbit hobbits level run

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Parvati Shallow Says RIP to the ‘Black Widow’ and All That

wired.com Leah Feiger 2025-08-08 08:27:38

Parvati Shallow, the reality TV maven and one-time Survivor winner, can now also add published author to her list of achievements. The legendary schemer, who orchestrated scores of blindsides on the beaches of the Cook Islands, Micronesia, and Fiji, has published a new memoir from Penguin Random House titled Nice Girls Don’t Win: How I Burned It All Down to Claim My Power. The book, a deeply revealing, personal excavation of Shallow’s childhood, divorce, relationships, and experience with reali

Topics: black role shallow survivor widow

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New hands-on iPhone 17 Air video reveals dummy in sleek black finish

9to5mac.com Ryan Christoffel 2025-08-08 20:35:25

It’s two months until Apple gets to officially unveil its iPhone 17 lineup, but while we wait, a new hands-on video today offers a great look at an ultra-thin iPhone 17 Air dummy model in black. Ultra-thin iPhone 17 Air in black offers stark contrast to other models In recent weeks, Majin Bu has been sharing various hands-on videos and photos revealing dummy models of the iPhone 17 lineup. Bu previously shared video of an iPhone 17 Pro Max showing off its thicker, bulkier look. Today, he’s b

Topics: 17 air black iphone video

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macOS Tahoe 26 beta 3 makes tabs less confusing

9to5mac.com Marcus Mendes 2025-08-09 04:58:50

One of the most common complaints in macOS Tahoe 26 betas 1 and 2 was the new tab UI in apps like Safari and Terminal, which added a black bar to the bottom of inactive tabs. In beta 3, Apple seems to have reversed course. Whether it was intentional or a bug on Apple’s part, many users had trouble quickly identifying the active tab. The low contrast between the selected tab and the rest of the UI, combined with that black underline on the non-active tabs, led to confusion, with some thinking th

Topics: active apple black new tab

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Why I use this cheap Android tablet more than my iPad Pro - and don't regret it (and it's cheaper for Amazon Prime Day)

zdnet.com Adrian Kingsley-Hughes 2025-08-09 11:31:00

ZDNET's key takeaways Built to the quality levels I've come to expect from Blackview. It punches above its price point in terms of hardware. Expanded memory does need to be pushed to the max to get the best performance. View now at Amazon What's the deal? For Amazon Prime Day there's 29% off the Blackview Tab 90, bringing the price down to $106.86, and this deal expires 11 July, at midnight. Blackview, a brand primarily recognized for its rugged smartphones, has also ventured into the table

Topics: 90 blackview price tab tablet

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GoPro HERO13 Black Ultra Wide Edition Has Never Been This Cheap Before, Amazon Prime Day Exclusive Deal

gizmodo.com Mike Fazioli 2025-08-10 12:25:21

If your summer plans include some epic adventuring — skydiving, maybe? Scuba diving? Mountain biking? No matter which extreme activities you have lined up, you’re going to have the same small problem: Nobody’s going to believe you without some proof. The best way to get that proof in the form of incredible, vivid, pro-quality videos is with the GoPro HERO13 Black Ultra Wide Edition, which has never been more affordable than it is right now at just $350 at Amazon. The GoPro HERO13 Black Ultra Wi

Topics: black gopro hero13 ultra wide

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Deals: AirPods Pro 2025 low at $160, black Apple Watch Ultra 2 best price ever at $150 off, Magic Mouse, AirTag, more

9to5mac.com Justin Kahn 2025-08-11 00:47:54

Amazon’s massive 4-day Prime Day sale might not officially start until early tomorrow morning, but the deals are definitely already flying. First up is AirPods – the AirPods Pro 2 just dropped to the best price of the year and one of the lowest totals we have ever tracked at $160 shipped, down from the regular $249 list price. We also have AirPods Max (USB-C) at $99 off the going rate as well as an amazing price on the black Apple Watch Ultra 2 that is now down at the lowest Amazon price ever wi

Topics: apple best black day price

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Amazon Is Going Nuts on Prices, GoPro HERO13 Black Is Flying Off Shelves For Prime Day

gizmodo.com Gizmodo Deals 2025-08-11 12:25:19

Amazon is rolling out its Prime Day sale this Tuesday, but the discounts unofficially began showing up on Monday. Among the best deals is the GoPro Hero13 Black, the top-selling action camera in the world, which is now selling exceptionally cheaper. The Hero13 Black is now available for $329, down from its regular price of $429. How much more sweeter it gets is that it’s offered to all, not just Prime members but we don’t know how long it will last. There’s also a special bundle deal with extra

Topics: action black camera gopro hero13

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Playdate Season 2 review: Taria & Como and Black Hole Havoc

engadget.com Unknown 2025-08-11 17:00:42

We've officially made it to the end of Playdate Season Two, and what a season it's been. Despite having half the number of titles as Season One, this latest round of weekly game releases has made a much stronger impression (on me, at least). If nothing else, it's just been cool to experience the new games in real time with other Playdate owners all at once, which the staggered rollout of the console didn't really allow for with the first season. In an email ahead of the final release, the team a

Topics: black game holes season taria

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Best Black Friday in July 2025 deals at Best Buy: The best offers available now

zdnet.com Allison Jewell 2025-08-11 18:15:00

When is Best Buy's Black Friday in July 2025? Best Buy's Black Friday in July will run from July 7 to July 13, 2025. However, some sales may still linger after the closing date. What are Best Buy Doorbuster deals? Doorbuster deals are limited-stock, extremely low-priced offers made to attract customers to sales. Best Buy typically employs these deals during its annual Black Friday sale, but has confirmed they will be present for its summer sale. Where do I find Best Buy's Black Friday in Jul

Topics: best black buy deals july

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Best Black Friday in July 2025 deals at Best Buy

zdnet.com Allison Jewell 2025-08-11 16:36:23

When is Best Buy's Black Friday in July 2025? Best Buy's Black Friday in July will run from July 7 to July 13, 2025. However, some sales may still linger after the closing date. What are Best Buy Doorbuster deals? Doorbuster deals are limited-stock, extremely low-priced offers made to attract customers to sales. Best Buy typically employs these deals during its annual Black Friday sale, but has confirmed they will be present for its summer sale. Where do I find Best Buy's Black Friday in Jul

Topics: best black buy deals july

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Xbox's sci-fi looter-shooter Blackbird was scrapped even after leaving execs 'blown away'

engadget.com Unknown 2025-08-11 11:13:05

Xbox was well on its way to delivering a sci-fi stylized game with plenty of exciting movement mechanics before an abrupt change of heart. The upcoming third-person shooter RPG codenamed Blackbird from ZeniMax Online Studios, which developed The Elder Scrolls Online, has been "shelved indefinitely," according to an exclusive report from Bloomberg. The report added that Xbox execs were "blown away" by the game and had "nothing but complimentary words," according to Bloomberg's sources. The excit

Topics: blackbird bloomberg game report shooter

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This is not a tattoo robot

theverge.com Mack Degeurin 2025-08-13 12:00:00

I walked into Blackdot’s tattoo studio in Austin’s east side on a sweltering May afternoon. After shaking my sweat-soaked hand, founder and CEO Joel Pennington led me up into an office building and opened the door to a small, three-room space. Critics have unflatteringly compared the studio to a sterile hospital room — a comparison not entirely without merit. In a corner room, the machine I had come here to see loomed: a humming, fridge-sized device reminiscent of an old X-ray unit. Blackdot cal

Topics: blackdot device pennington says tattoo

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CoreWeave is the first cloud provider to deploy Nvidia's latest AI chips

cnbc.com Kif Leswing 2025-08-15 04:31:28

Nvidia's Blackwell Ultra chips, the company's next-generation graphics processor for artificial intelligence, have been commercially deployed at CoreWeave, the companies announced on Thursday. CoreWeave has received shipments of Dell-built shipments based around Nvidia's GB300 NVL72 AI systems, Dell said on Thursday. It's the first cloud provider to install systems based around Blackwell Ultra. The Blackwell Ultra is Nvidia's latest chip, expected to ship in volume during the rest of the year.

Topics: blackwell coreweave dell nvidia systems

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Latest Tech News

Piano Keys

Bizarre "Infinity Galaxy" Could Hold the Secrets of Supermassive Black Holes

‘Suzzanna: The Queen of Black Magic’ Is a Colorful Portrait of a Cult Horror Legend

Nomad drops new Carbon Black Rocky Point band for Apple Watch

The Absolute Best Horror Movies to Watch on Hulu

Webb spots 'Infinity Galaxy' that sheds light on black hole formation

LIGO detects most massive black hole merger to date

LIGO Detects Most Massive Black Hole Merger to Date

Merger of two massive black holes is one for the record books

Scientists Detect Sign of Something Impossible Out in Deep Space

Black hole merger challenges our understanding of black hole formation

Astronomers Detect a Black Hole Merger That’s So Massive It Shouldn’t Exist

Best Black Friday in July 2025 deals at Best Buy: The best offers that end tomorrow

Sony will have gorgeous PlayStation 5 bundles for Ghost of Yōtei

Windows 11’s new Black Screen of Death is now rolling out

Show HN: I built a playground to showcase what Flux Kontext is good at

‘Lord of the Rings Online’ Players Successfully Get Small Hobbit Army Lost Inside Mount Doom

Parvati Shallow Says RIP to the ‘Black Widow’ and All That

New hands-on iPhone 17 Air video reveals dummy in sleek black finish

macOS Tahoe 26 beta 3 makes tabs less confusing

Why I use this cheap Android tablet more than my iPad Pro - and don't regret it (and it's cheaper for Amazon Prime Day)

GoPro HERO13 Black Ultra Wide Edition Has Never Been This Cheap Before, Amazon Prime Day Exclusive Deal

Deals: AirPods Pro 2025 low at $160, black Apple Watch Ultra 2 best price ever at $150 off, Magic Mouse, AirTag, more

Amazon Is Going Nuts on Prices, GoPro HERO13 Black Is Flying Off Shelves For Prime Day

Playdate Season 2 review: Taria & Como and Black Hole Havoc

Best Black Friday in July 2025 deals at Best Buy: The best offers available now

Best Black Friday in July 2025 deals at Best Buy

Xbox's sci-fi looter-shooter Blackbird was scrapped even after leaving execs 'blown away'

This is not a tattoo robot

CoreWeave is the first cloud provider to deploy Nvidia's latest AI chips

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