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Tvoří temnou hmotu záplava mikroskopických tornád?

Pokud se temná hmota skládá z ohromující spousty zcela nepatrných částic ultralehké temné hmoty, mohla by se chovat jako kvantová kapalina. Podle simulací by při v rotující „kapalinové“ temné hmotě vznikala mikroskopická tornáda, uspořádaná do pravidelného vzoru podobného krystalické mřížce. http://www.osel.cz/14134-tvori-temnou-hmotu-zaplava-mikroskopickych-tornad.html

7d | osel.cz
12 New Summer Anime Releases to Add to Your Watch List Right Now

July is going to be a hot month for anime, with releases like Gachiakuta and The Summer Hikaru Died, so get your streaming subscriptions ready. https://www.cnet.com/tech/services-and-software/12-new-summer-anime-releases-to-add-to-your-watch-list-right-now/#ftag=CADf328eec

7d | cnet.com
Trump claims a 'very wealthy' group will buy TikTok without revealing who

The unending saga between President Donald Trump and TikTok may finally get some closure. In an interview with Fox News' Maria Bartiromo

7d | Engadget
Apple's F1 laps its competition with a $144 million opening weekend

Apple's film studio finally has a successful summer blockbuster to its name with its latest sports drama flick starring Brad Pitt. F1 the Movie saw an opening weekend that earned $144 million globally and $55.6 million domestically, according to

7d | Engadget
Dave the Diver's In the Jungle DLC may not arrive until 2026, but Godzilla is back

Dave the Diver just marked its two-year anniversary, and the team behind it has a bunch of updates to share about its future. While it's mostly good news, there is one little hiccup: the upcoming ">In the Jungle DLC, which was announced a few months ago and was expected to arrive later this year, now isn't likely to launch

7d | Engadget
Show HN: Sharpe Ratio Calculation Tool

I built a simple but effective Sharpe Ratio calculator that gives the full historical variation of it. Should I add other rations like Calmar and Sortino?


Comments URL: https://news.ycombinator.com/item?id=44414848

Points: 6

# Comments: 3

https://www.fundratios.com/

 Steam Deck leaves Windows handhelds behind in new performance tests

New benchmarks show Steam Deck rivals like the ROG Ally and Lenovo Legion Go struggle with performance due to Windows 11, while SteamOS delivers smoother gameplay.

https://www.laptopmag.com/gaming/steam-deck-leaves-windows-handhelds-behind-performance-tests

Playdate Season 2 review: Tiny Turnip and Chance's Lucky Escape

It's hard to believe that Playdate Season Two is almost over already, but here we are in week five with just one more drop of new games left to go after this. In the latest batch, we got the climbing metroidvania, Tiny Turnip, and Chance's Lucky Escape, a short point-and-click adventure that leans into

7d | Engadget
Android 16 will protect users from fake cell towers and potential spying threats

It turns out that your smartphone could be an overlooked vulnerability that puts you at risk of being tracked. To combat this, Google is rolling out a new security feature in Android 16 that will warn users if their device is using a fake or insecure mobile network or if that network requests identifying information about a connected device.

However, these

7d | Engadget
Show HN: A tool to benchmark LLM APIs (OpenAI, Claude, local/self-hosted)

I recently built a small open-source tool to benchmark different LLM API endpoints — including OpenAI, Claude, and self-hosted models (like llama.cpp).

It runs a configurable number of test requests and reports two key metrics: • First-token latency (ms): How long it takes for the first token to appear • Output speed (tokens/sec): Overall output fluency

Demo: https://llmapitest.com/ Code:

 AI-powered Catlog smart collar now notifies you if your cat feels stressed

Feline accessories specialist Rabo of Japan has updated its monitoring app with AI smarts. Now you can get alerted if your cat gets stressed.

https://www.tomshardware.com/peripherals/wearable-tech/ai-powered-catlog-smart-collar-now-notifies-you-if-your-cat-feels-stressed

Amazon Prime Day 2025: The best early deals to shop now, dates and everything else you need to know

Amazon Prime Day has been a summer mainstay for years at this point and this year is no exception. Prime Day will return on July 8 to July 11 this year, marking the first time the shopping event has been more than 48-hours long. That just means you’ll have more time to shop the deals, but really, you don't even have to wait until the official start date to save. Amazon typically always has early Prime Day deals

7d | Engadget
Show HN: SmartStepper – Multi-Step Form Library with Config-Based Flow

I just released SmartStepper v2 – a declarative and config-based way to handle multi-step forms in React.

It lets you define orchestration (next, previous steps), validation, and views via a single config object. No more if/else spaghetti or scattered state.

GitHub: https://github.com/Miladxsar23/smartstepper Demo: https://smartstepper-demo.vercel.app Docs:

My Favorite Tips for Decluttering Your Phone and Dealing With All Those Smart Home Apps

If your home apps are multiplying, I suggest converting to Matter devices, adopting a password manager, and using other hacks to cut down on juggling all those apps. https://www.cnet.com/home/smart-home/my-favorite-tips-to-declutter-your-phone-from-all-those-smart-home-apps/#ftag=CADf328eec

7d | cnet.com
I Never Pay Full Price for My VPN. Here’s How You Can Save, Too

From timing seasonal sales to canceling before a big auto-renewal hike, these are the tips and tricks I use to avoid paying full price for a VPN. https://www.cnet.com/tech/services-and-software/how-to-save-money-vpn-subscription-plan/#ftag=CADf328eec

7d | cnet.com
Neo Humanoid Robot At-Home Training Update video

Robotics company 1X shared new insights into their Redwood AI and 1X World Model which are helping the company's Neo humanoid robots learn how to do a variety of tasks in a home setting. https://www.cnet.com/videos/neo-humanoid-robot-at-home-training-update/#ftag=CADf328eec

7d | cnet.com
 3 reasons to be worried if you're looking for a cheap Kindle this Prime Day

There's a lot of interest in this year's Amazon Prime Day Kindle deals, but I'm worried that too many factors could lead to disappointing offers again.

https://www.techradar.com/tablets/ereaders/3-reasons-to-be-worried-if-youre-looking-for-a-cheap-kindle-this-prime-day

 NYT Strands hints and answers for Monday, June 30 (game #484)

Looking for NYT Strands answers and hints? Here's all you need to know to solve today's game, including the spangram.

https://www.techradar.com/computing/websites-apps/nyt-strands-today-answers-hints-30-june-2025

 NYT Connections hints and answers for Monday, June 30 (game #750)

Looking for NYT Connections answers and hints? Here's all you need to know to solve today's game, plus my commentary on the puzzles.

https://www.techradar.com/gaming/nyt-connections-today-answers-hints-30-june-2025

 These are the peripherals I'm still using, months and years later

There are plenty of keyboard, mice, headsets, and microphones that impress me when I test them, but these are the ones I keep using long after I'm done testing.

https://www.tomshardware.com/peripherals/these-are-the-peripherals-im-still-using-months-and-years-later

 Commodore acquired for a ‘low seven figure’ price — new (acting) CEO comes from the retro community

YouTube’s Christian ‘Peri Fratic’ Simpson claims to be 'the acting CEO of Commodore Corporation.' But there's still a financial hurdle to cross for a successful acquisition.

https://www.tomshardware.com/video-games/retro-gaming/commodore-acquired-for-a-low-seven-figure-price-new-acting-ceo-comes-from-the-retro-community

 Windows 12 release is pushed back at least another year as Microsoft announces Windows 11 version 25H2

The next version of Windows is now confirmed to be Windows 11 25H2, and since it's built on the same codebase as its predecessors, it will install much faster on 24H2 systems.

https://www.tomshardware.com/software/windows/windows-12-release-is-pushed-back-at-least-another-year-as-microsoft-announces-windows-11-version-25h2

One of our favorite Ninja air fryers is $50 off for Prime Day

For many, summer means it's time to grill outdoors. But cooking inside does at least mean you’re likely to deal with fewer bugs. It also makes it easier to try out new kitchen equipment, such as a Ninja air fryer that’s on sale ahead of Prime Day. The

7d | Engadget
Show HN: Octelium – FOSS Alternative to Teleport, Cloudflare, Tailscale, Ngrok

I have been working on Octelium for quite a few years now but it was open sourced only by late May 2025. Octelium, as described more in detail in the repo's README, is simply an open source, self-hosted, unified platform for zero trust resource access that is primarily meant to be a modern alternative to corporate VPNs and remote access tools. It can operate as a remote access/corporate VPN (i.e. alternative to Twingate, Tailscale, OpenVPN Access Server, etc...), a ZTNA/BeyondCorp platform (

 Elle: release date, cast and everything we know about the Legally Blonde prequel TV show

Elle arrives on Prime Video in mid-2026. Here's everything we know so far about the Legally Blonde prequel TV show.

https://www.techradar.com/streaming/amazon-prime-video/elle

 SteelSeries' latest wireless mouse is cheap and colorful — but is this the one to spend your money on?

The SteelSeries Rival 3 (Gen 2) Wireless is an entry-level, wireless gaming mouse with a colorful personality and good performance, but is it the best value?

https://www.windowscentral.com/accessories/mice/steelseries-rival-3-gen-2-wireless-review

Don’t believe these tech myths

Technology can seem pretty mysterious at times, so it’s all too easy for misconceptions to spread.

That helps explain why I keep seeing technological myths propagate. Should you bury a wet phone in rice? Do you need a VPN to use public Wi-Fi networks? Is your phone secretly recording your conversations? The answer to these questions and more is no, but believing otherwise can be detrimental.

Here’s my attempt to dispel a half dozen popular tech myths, and what you should

Modernize your PC with Windows 11 Pro—now only $9.97
A Week of Symfony #965 (June 23–29, 2025)

This week, Symfony 6.4.23, 7.2.8 and 7.3.1 maintenance versions were released. Meanwhile, the upcoming Symfony 7.4 version continued adding new features such as better controller helpers, more precision in UUIDv7 values, and using PHP serialization instead… https://symfony.com/blog/a-week-of-symfony-965-june-23-29-2025?utm_source=Symfony%20Blog%20Feed&utm_medium=feed

8d | Symfony