In 1876, Peter Guthrie Tait set out to measure what he called the “beknottedness” of knots. The Scottish mathematician, whose research laid the foundation for modern knot theory, was trying to find a ...

The original version of this story appeared in Quanta Magazine. Imagine that someone gives you a list of five numbers: 1, 6, 21, 107, and—wait for it—47,176,870. Can you guess what comes next? If ...

With more than 4 million weekly downloads, the Nx build platform became the first known supply chain breach where hackers weaponized AI assistants for data theft. Hackers stole thousands of ...

Sitting for a long period of time can leave you feeling cramped, stiff, and uncomfortable. It can also aggravate some health conditions. About 1 in 1,000 Americans each year develop dangerous clots, ...

During a budget hearing held by the Senate Appropriations Committee several weeks ago, Senator Jack Reed (D-RI) pressed HHS Secretary RFK Jr. on his department eliminating the CDC's Childhood Lead ...

A new study offers encouraging news for older adults with chronic respiratory conditions who may struggle to access traditional gym-based rehabilitation programs. Researchers found that pulmonary ...

The FSF SysOps team consists of two full-time tech team employees and a handful of dedicated volunteers. A large part of our work is running the software and physical servers that host websites and ...

A KC-46 provides fuel to F-16s during a June 5 flight near Misawa AB, Japan. Credit: U.S. Air Force The U.S. Air Force’s plan to buy more refuelers after completion of the KC-46 program of record has ...

Iran’s nuclear program has been a long-standing problem. Many US presidential administrations have struggled with it, as have many international organizations and foreign governments. To help makes ...

I recently published a Design Idea (DI) showing some very simple circuits for PWM programming of standard regulator chips, both linear and switching, “Revisited: Three discretes suffice to interface ...