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Measuring My DIY Air Purifier

For this post, I tried to measure the performance of my DIY air purifier, the Corsi-Rosenthal box. I wanted to compare its performance against natural ventilation, and commercial ones like the Levoit 400s home purifier. The main metric I needed to beat was the clean air delivery rate (CADR), which is how much ‘polluted air’ is filtered in an hour for a given type of pollutant (like smoke) - it has units in cubic metres of air per hour. Again, this is not a lab grade experiment, but rather a min

Trump’s solution for high drug prices is a discount portal called TrumpRx

is a news writer who covers the streaming wars, consumer tech, crypto, social media, and much more. Previously, she was a writer and editor at MUO. Posts from this author will be added to your daily email digest and your homepage feed. President Donald Trump is launching a new government-run website that he says will let Americans buy medications at lower prices. The new website, called TrumpRx, is expected to launch in 2026 and will direct consumers to discounts on drugmakers’ online stores,

Best October Prime Day SSD deals: Discounts on gear from Crucial, Samsung and more

A portable storage device can make a world of difference to intensive processing tasks, from running massive video games — which feels like all of them these days — to core operating system functions. A solid-state drive (SSD) gives your hard drive more bandwidth than it comes with by default, making huge chunks of data easier to digest and keeping your device from running too hot. This October Prime Day, we've rounded up the best deals on SSDs, portable SSDs and microSD cards. Not only are thes

Microsoft sales chief Althoff gets new role as CEO of company's commercial business

President of Microsoft North America Judson Althoff speaks on stage during We Day at KeyArena on April 23, 2015 in Seattle, Washington. Microsoft 's top-ranking sales leader, Judson Althoff, has been promoted to a bigger role as CEO of the company's commercial business. Satya Nadella, Microsoft's CEO, wrote in a memo on Wednesday that marketing and operations will move under Althoff's organization. Most of Microsoft's revenue comes from commercial offerings such as productivity software subscr

Apple TV+ is exclusive Peanuts streaming home through 2030

Apple TV+ has focused almost entirely on creating original content, but one exception is a partnership with Peanuts that started in 2020. Now, Apple has announced that TV+ will remain Peanuts’ exclusive streaming home through at least 2030—and shared ways to watch select Peanuts holiday specials for free. When Apple was first rumored to be building a TV streaming service, many assumed the company would license outside content like Netflix had successfully done for years. Instead, Apple went al

Satya Nadella appoints a new CEO to run Microsoft’s biggest businesses

We are in the midst of a tectonic AI platform shift, one that requires us to both manage and grow our at-scale commercial business today, while building the new frontier and executing flawlessly across both. History shows that general purpose technologies like AI drive step changes in productivity and GDP growth, and we have a unique opportunity to help our customers and the world realize this promise. Our success depends on enabling commercial and public sector customers and partners to combi

Netflix’s latest Frankenstein trailer is all about the creature

As you can see, this version of Frankenstein’s monster is very distinct, and a strong departure from the classic depiction most closely associated with the literary icon. The character is played by Jacob Elordi, best-known for Euphoria and Saltburn, and you also get to hear his version of the creature’s voice as he tells his side of the dark story. The design, meanwhile, comes courtesy lead creature designer Mike Hill, an artist and sculptor who previously worked with del Toro on projects like T

New Peloton hardware is almost a complete revamp, with AI features

Fitness tech company Peloton really took off during the pandemic, with multiple suggestions that it might be in line for an acquisition by Apple, but has struggled to find its way since then. The company is today seeking to address this with an almost completely new hardware lineup, with AI features naturally playing a key role. This includes the company’s first commercial treadmill … Peloton says that its new lineup provides a complete cross-training solution within a small space. Peloton to

Ted Cruz blocks bill that would extend privacy protections to all Americans

Sen. Ted Cruz (R-TX) has blocked an effort to pass legislation that would have extended data privacy protections for federal lawmakers and public officials to everyone in the United States. On Monday night, Sen. Ron Wyden (D-OR) asked the U.S. Senate for unanimous consent from fellow senators to pass his legislation, S.2850. Wyden’s bill, if passed, would have taken bipartisan-passed provisions designed to protect government officials, lawmakers, and their families from having their personal in

Show HN: I'm 17, built a face-verified social network to fight fake accounts

WhiteLotus – A Social App for Real People Only No bots. No fake profiles. Just authentic connections. It’s a new kind of social platform built around one core idea: ✅ Real people only. We use AI-powered face verification to block bots, fake accounts, and identity theft. Every user is verified, and we strictly enforce 1 account per person. --- 🔑 Core Features: 📸 Face-verified signups only — no bots, no spam 💬 1-on-1 private chats — only with approved friends 🖼 Photo-based p

Burnout and Elon Musk’s politics spark exodus from senior xAI, Tesla staff

Elon Musk’s business empire has been hit by a wave of senior departures over the past year, as the billionaire’s relentless demands and political activism accelerate turnover among his top ranks. Key members of Tesla’s US sales team, battery and power-train operations, public affairs arm, and its chief information officer have all recently departed, as well as core members of the Optimus robot and AI teams on which Musk has bet the future of the company. Churn has been even more rapid at xAI,

YouTube to pay $24.5m to settle Trump lawsuit over Capitol riot

YouTube to pay $24.5m to settle Trump lawsuit over Capitol riot Donald Trump speaking in a video released on YouTube on his last day in office in 2021 At the time of his suspension, social media companies said that Trump risked inciting further violence in Washington DC. Trump had accused YouTube and other tech companies of political bias, claiming they had unfairly censored conservative voices after the Capitol riot in 2021. The settlement from the video streaming giant's parent company Alp

Meta is bringing new facial recognition tools to the UK, EU and South Korea

Meta is expanding its use of facial recognition in Europe, the UK and South Korea to crack down on accounts that impersonate public figures. The new facial recognition-powered safety features are now live on Facebook in the regions and will expand to Instagram in the coming months. The technology was initially put to use last year starting in the US, helping to identify ads that fraudulently use a celebrity's likeness as well as to help people regain access to hacked accounts. Public figures op

Meta-analysis of 2.2M people: Loneliness increases mortality risk by 32%

The loneliness epidemic threatens physical health like smoking Loneliness increases death risk by 32% but we know how to fix it. Real solutions that cut loneliness in half, from mindfulness to community programs that actually work. Faruk Alpay 6 min read · Just now Just now -- Listen Share Press enter or click to view image in full size Abstract Chronic loneliness increases mortality risk by 32% and dementia risk by 31%, with biological pathways now proven through inflammation, immune dysfun

Lifetime of social ties adds up to healthy aging at molecular level

The cumulative effect of social advantages across a lifetime – from parental warmth in childhood to friendship, community engagement and religious support in adulthood – may slow the biological processes of aging itself. These social advantages appear to set back “epigenetic clocks” such that a person’s biological age, as measured by analyzing DNA methylation patterns, is younger than their chronological age. The research, which appeared in the October issue of the journal Brain, Behavior and I

NASA drops ISS cargo guarantee, forcing Sierra Space to pivot

When Sierra Space won a contract to deliver cargo to the International Space Station nearly a decade ago, the company promised a first for the commercial space market: a privately built, rapid reuse and cargo return spaceplane capable of landing on commercial runways. That dream has changed. In a modification to the contract announced earlier this week, NASA and Sierra Space agreed to remove the agency’s guarantee to purchase cargo flights to the ISS. Instead, the Dream Chaser spaceplane will d

New math revives geometry's oldest problems

In the third century BCE, Apollonius of Perga asked how many circles one could draw that would touch three given circles at exactly one point each. It would take 1,800 years to prove the answer: eight. Such questions, which ask for the number of solutions that satisfy a set of geometric conditions, were a favorite of the ancient Greeks. And they’ve continued to entrance mathematicians for millennia. How many lines lie on a cubic surface? How many quadratic curves lie on a quintic surface? (Twen

The Social Network follow-up has a new title and release date

is a reporter focusing on film, TV, and pop culture. Before The Verge, he wrote about comic books, labor, race, and more at io9 and Gizmodo for almost five years. Posts from this author will be added to your daily email digest and your homepage feed. We knew that Aaron Sorkin was working on a companion piece to The Social Network, and now we know what the movie will be called and when Sony plans to debut it in theaters. Deadline reports that the movie, now titled The Social Reckoning, has bee

‘The Social Network’ sequel will focus on Haugen leaks, with Jeremy Strong as Mark Zuckerberg

Fifteen years after The Social Network, Aaron Sorkin will write and direct a sequel film called The Social Reckoning, set for release on October 9, 2026. Jesse Eisenberg will not reprise his breakout role as Mark Zuckerberg, but instead will be replaced with the more sallow, serious Jeremy Strong. Best known for playing Kendall Roy in Succession, Strong is known for his method acting, a technique in which the actor tries to immerse themselves in the mental and emotional state of the character…

The Social Network sequel has a new title and release date

is a reporter focusing on film, TV, and pop culture. Before The Verge, he wrote about comic books, labor, race, and more at io9 and Gizmodo for almost five years. Posts from this author will be added to your daily email digest and your homepage feed. We knew that Aaron Sorkin was working on a follow-up to The Social Network, and now we know what the movie will be called and when Sony plans to debut it in theaters. Deadline reports that the movie, now titled The Social Reckoning, has been give

As people look for ways to make new friends, here are the apps promising to help

In recent years, people have been increasingly looking for new ways to form platonic connections, as loneliness and social isolation have become more prevalent. In 2023, the U.S. Surgeon General went so far as to label this issue a public health crisis. Remote workers, who miss the everyday interactions found in an office, and younger individuals eager to create their adult social circles based on shared interests and hobbies, are among those seeking meaningful friendships. Thanks to online da

Open Social

September 26, 2025 Open source has clearly won. Yes, there are plenty of closed source products and businesses. But the shared infrastructure—the commons—runs on open source. We might take this for granted, but it wasn’t a foregone conclusion thirty five years ago. There were powerful forces that wanted open source to lose. Some believed in the open source model but didn’t think it could ever compete with closed source. Many categories of tools only existed as closed source. A Microsoft CEO ca

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Sierra Space’s spaceplane faces a reinvention after NASA contract change

When Sierra Space won a contract to deliver cargo to the International Space Station nearly a decade ago, the company promised a first for the commercial space market: a privately built, rapid reuse and cargo return spaceplane capable of landing on commercial runways. That dream has changed. In a modification to the contract announced earlier this week, NASA and Sierra Space agreed to remove the agency’s guarantee to purchase cargo flights to the ISS. Instead, the Dream Chaser spaceplane will d

China launches campaign to keep killjoys off the internet

China launches campaign to keep killjoys off the internet 10 hours ago Share Save Koh Ewe and Osmond Chia Share Save Getty Images Social media giants have also found themselves penalised in China's campaign to clean up its internet The Chinese government is taking aim at an emotion that has become all too common on the country's internet - despondency. This week, China's Cyberspace Administration launched a two-month campaign to curb social media posts that "excessively exaggerate negative an

Nintendo is opening a pop-up store in London this fall

Nintendo will open an official pop-up store in London this fall, its first-ever in the UK. The store will be open from October 22 to November 16 on the ground floor of the Westfield London shopping mall in Shepherd's Bush. The Japanese gaming giant operates official stores in Tokyo and Kyoto, as well as permanent locations in New York and (20 years later) San Francisco . The pop-up store in London will feature an extensive collection of Nintendo merchandise across the brand's most iconic titles

Ubuntu: The Indigenous Ethos of Restorative Justice

Because European colonialists saw no jails, police, lawyers, judges, or courts in African indigenous societies, they mistakenly concluded these cultures had no way to address social conflict and wrongdoing. […] In Western culture, we are socialized to believe that the desire to inflict counterviolence upon or retaliate against someone who has hurt us or a loved one is innate and that justice has always been done and will always be done in this way. In fact, far from universal or natural, this a

Armed Guards and Muscle Milk: Senate Investigation Reveals DOGE Takeover Details

From its inception, Elon Musk’s so-called Department of Government Efficiency (DOGE) operated as a rogue entity within the US government, slashing staff and funding, gaining access to government systems, and overriding agency decisionmaking—all without oversight from officials who have little understanding of its reach and methods. A report issued by the Senate Committee on Homeland Security and Governmental Affairs (HSGAC) on Thursday adds new insight on how this incursion happened, while rais

These YC founders pivoted 5 times before building a social app that nabbed 300K users and over $1M ARR in 6 months

A couple of months ago, the founders behind YC-backed social app Candle were in “pivot hell,” cycling through more than a dozen ideas after joining Y Combinator’s Fall 2024 batch, while the clock on their seed money ticked down. Alex Ruber, previously an engineer at Apple, and Parth Chopra, formerly an engineer at Asana and Twitter, had built multiple projects together, including Encore, a conversational AI shopping tool that got them into YC and with which they raised $2 million. However, whi

Police seizes $439 million stolen by cybercrime rings worldwide

In a five-month joint operation led by Interpol, law enforcement agencies have seized more than $439 million in cash and cryptocurrency linked to cyber-enabled financial crimes that impacted thousands of victims worldwide. Codenamed Operation HAECHI VI, it involved authorities from 40 countries and five continents between April and August 2025. HAECHI VI targeted a wide range of criminal activities, from voice phishing, investment fraud, e-commerce fraud, and online sextortion to business emai

Alibaba shares rise over 6% after CEO unveils plans to boost AI spending; new data centers

Alibaba 's Hong Kong-listed shares surged on Wednesday to reach their highest point since 2021 after the company said it will invest more in artificial intelligence and rolled out new AI products and updates. Shares of the company jumped over 6%, while its total gains year to date rose above 107%. The tech giant plans to increase spending on AI models and infrastructure development, on top of the 380 billion yuan ($53 billion) over three years it announced in February, Chief Executive Officer