The radix 2^51 trick
Faster addition and subtraction on modern CPUs Do you remember how to do long addition on paper? ¹¹ ¹ 6876 + 3406 —— 10282 Starting from the “ones” position, we add 6 + 6 = 12, write down a 2 and carry a 1. We proceed to the left, one position at a time, until […]
U.S. sanctions cloud provider ‘Funnull’ as top source of ‘pig butchering’ scams
Image: Shutterstock, ArtHead. The U.S. government today imposed economic sanctions on Funnull Technology Inc., a Philippines-based company that provides computer infrastructure for hundreds of thousands of websites involved in virtual currency investment scams known as “pig butchering.” In January 2025, KrebsOnSecurity detailed how Funnull was being used as a content delivery network that catered to […]
What is Humphrey’s Executor? A look at the 90-year-old Supreme Court decision
WASHINGTON (AP) — A month into President Donald Trump ‘s second term, lawyers for the Republican administration seem intent on provoking a legal fight to overturn a 90-year-old Supreme Court decision known as Humphrey’s Executor that has been critical to the development of the modern U.S. government. Humphrey’s Executor ushered in an era of powerful independent federal agencies charged with regulating […]
Practical SDR: Getting Started with Software-Defined Radio
Download Chapter 4: Creating an AM Receiver Look Inside! Whether you’re a hobbyist interested in exploring the airwaves, a student learning about wireless communications, or an engineer looking to prototype RF designs, Practical SDR will help you master the fundamentals of software-defined radio. You’ll build virtual radio receivers on your computer, then extract audio from […]
IRS Direct File
Direct File is a service from the United States Government that provides taxpayers the option to electronically file their federal tax return for free, directly with the Internal Revenue Service (IRS). Direct File is an interview-based service that is intended to work as well on a mobile phone as it does on a laptop, tablet, […]
I’m starting a social club to solve the male loneliness epidemic
How do I join Wave3 Social? Start by attending one of our local mixers – open events where anyone can come meet current members and get a feel for the community. If the vibe is right and you’re supported by existing members, you’ll receive an invitation to join Wave3 as a full member with access […]
California has got good at building giant batteries
A renewable energy corridor is rising in eastern Kern County, California—where the Mojave Desert meets the Sierra Nevada mountains. Among the wind turbines, solar panels and Joshua Trees are giant batteries that look like shipping containers. Tesla workers tinker with the ones at the Eland solar and storage project, developed by Arevon Energy. They wear […]
Sam Altman and Jony Ive Will Force A.I. Into Your Life
Infinite Scroll Sam Altman and Jony Ive Will Force A.I. Into Your Life The founder of OpenAI and the designer behind the iPhone are teaming up on a gadget that they promise to ship out “faster than any company” ever has. What could go wrong? By Kyle Chayka May 28, 2025 Illustration by Ariel Davis […]
Airlines are charging solo passengers higher fares than groups
Yesterday, we discovered that Delta was charging solo and business travelers higher fares per ticket than when booking for two or more passengers. But it turns out that pricing quirk goes far beyond just Delta. Since we published that story, we’ve searched through hundreds of fares and found plenty of examples that prove it: All […]
Show HN: MCP Defender – OSS AI Firewall for Protecting MCP in Cursor/Claude etc.
Intelligent Threat Detection MCP Defender will alert you as soon it identifies any malicious activity being performed by your AI apps Open Source MCP Defender is open source and Apache 2.0 licensed Automatic Protection MCP Defender acts as a secure proxy between your AI applications and MCP servers, analyzing all communications for potential threats in […]