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Should you normalize RGB values by 255 or 256?

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✨ Discover this trending post from Hacker News 📖 📂 **Category**: 📌 **What You’ll Learn**: Let’s say you’re writing an image processing program. The program takes in an image, converts it to floating point, does some processing and finally saves the modified pixels to disk as 8-bit colors. The question today concerns how exactly the integer-to-float conversion should be done. There are two approaches which, written in Python and NumPy, look like this: Standard division by 255 Alternative division by 256 pixels = img / 255.0 result = process(pixels) output = np.trunc(result * 255 + 0.5) pixels = (img +…

Defense technology darling Mach Industries’ value reaches $1.8 billion, a 4-fold jump in one year

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🚀 Discover this insightful post from TechCrunch 📖 📂 **Category**: Fundraising,Startups,TC,Transportation,autonomous vehicles,defense tech,mach industries 💡 **What You’ll Learn**: Mach Industries, a three-year-old defense technology startup led by 22-year-old founder and CEO Ethan Thornton, has raised a $300 million Series C at a valuation of $1.8 billion, the company announced Monday. The increase nearly quadruples the company's valuation in one year. In June 2025, Mach raised $100 million at a valuation of $470 million. It has now raised about $485 million from investors, including Bedrock Capital, Sequoia Capital and Khosla Ventures. The round was led by deep tech funds Infinite Capital…

‘My 15-year-old relative was killed for refusing to marry her cousin. My family celebrated by dancing in the street’ | Violence against women and girls

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🔥 Check out this trending post from Hacker News 📖 📂 **Category**: 📌 **What You’ll Learn**: The men of my tribe [extended family] threw my relative Kawthar Bashar al-Husayjawi, 15, into a pit and put a little dirt over her body. They had killed her hours earlier with 10 bullets, and split her small head with an axe. My family then joined others in coming on to the streets to dance and celebrate her death.Kawthar lived in al-Nahrawan, a district in the south-east of Baghdad. She had been taken out of school and at age 13 forced to marry an…

French Open 2026 results: Matteo Berrettini and Felix Auger-Aliassime to the quarter-finals

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🚀 Read this trending post from BBC Sport 📖 📂 **Category**: 📌 **What You’ll Learn**: Felix Auger-Aliassime, who reached the semi-finals of the US Open twice, used his experience to overcome what might be a difficult encounter against Alejandro Tabello 6-3, 7-5, 6-1.In theory, Chile's Tableo should have been the most active of the competitors, spending around six fewer hours on the court last week after being eliminated in the second round.But Canadian Auger-Aliassime started strong and broke serve at 3-1 before holding serve for the rest of the first set.Tabelo had never gone beyond the third round at a…

Attorney General James Uthmeier Files First-in-the-Nation State-Led Lawsuit Against OpenAI, CEO Sam Altman for Deceptive Practices and Harms to Floridians

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💥 Discover this trending post from Hacker News 📖 📂 **Category**: 📌 **What You’ll Learn**: Courtesy of the Office of the Attorney General TALLAHASSEE, Fla.—Attorney General James Uthmeier announced legal action against OpenAI and its Chief Executive Officer, Sam Altman, alleging that the company knowingly released and aggressively marketed ChatGPT to the public—including to children—while concealing serious risks, suppressing internal safety warnings, and deceiving Floridians about the true nature and dangers of the product. “Today, we announced the first-in-the-nation state-led lawsuit against OpenAI and its CEO, Sam Altman,” said Attorney General James Uthmeier. “OpenAI and Altman ignored internal and external…

Access to water is now a risk factor in SpaceX’s IPO

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🔥 Explore this insightful post from TechCrunch 📖 📂 **Category**: AI,Space,artificial intelligence,data centers,Elon Musk,SpaceX 💡 **What You’ll Learn**: SpaceX has added new language to its IPO filing that warns potential investors about the company's access to a potentially scarce resource: water. The company, which now includes Elon Musk's artificial intelligence game, xAI, wrote in a revised version of the filing on Monday that access to water — required to cool its data centers — is just as important as SpaceX's ability to secure power, processors and other critical resources. This addition comes amid an ever-evolving debate about how much water…

github and the crime against software

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🚀 Read this must-read post from Hacker News 📖 📂 **Category**: 💡 **What You’ll Learn**: github and the crime against software A software article by Efron LichtMay 2026 ALL ARTICLES LICENSE Feeds Introduction If a house was on fire there could be but two parties. One in favor of putting out the fire. Another in favor of the house burning. Abraham Lincoln As I begin this article, Github is down, again. While there have been plenty of articles talking about github’s struggles with reliability, security, and performance like this one by the verge, they are only scratching the surface. Github…

Hackers hijacked Instagram accounts by tricking Meta AI support chatbot into granting access

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✨ Read this insightful post from TechCrunch 📖 📂 **Category**: Security,AI,cybercrime,cybersecurity,hackers,hacking,Instagram,Meta 💡 **What You’ll Learn**: Instagram has resolved a security issue that allowed multiple users' accounts to be hacked. The attack appears to rely on tricking Meta's AI-powered support chatbot into granting access to the victim's account. Over the weekend, several users on Reddit claimed that their Instagram accounts had been hacked, and a number of users on X warned of similar account hijackings. The hacked accounts include the Obama White House's Instagram account, which appears to have been inactive since 2017; And an account by US Space Force Staff…

The Idea That Eats Smart People

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🚀 Read this must-read post from Hacker News 📖 📂 **Category**: 💡 **What You’ll Learn**: The Idea That Eats Smart People In 1945, as American physicists were preparing to test the atomic bomb, it occurred to someone to ask if such a test could set the atmosphere on fire. This was a legitimate concern. Nitrogen, which makes up most of the atmosphere, is not energetically stable. Smush two nitrogen atoms together hard enough and they will combine into an atom of magnesium, an alpha particle, and release a whole lot of energy: N14 + N14 ⇒ Mg24 + α +…

A new app, The Mall, is creating a global feed of online shopping

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💥 Explore this insightful post from TechCrunch 📖 📂 **Category**: Apps,Commerce,brands,commerce,e-commerce,online shopping 📌 **What You’ll Learn**: The mall is back again. As young people return to American malls in greater numbers, a startup called The Mall is bringing this concept online with an app that allows users to create a personalized virtual mall of their favorite brands and track sales in one place. The idea itself is simple, if not new. But its arrival now feels timely, as customers face an increasingly fragmented online shopping landscape that's made it harder to keep up with their favorite brands. This challenge is…