Behind every knot lies a hidden code — a pattern so complex that supercomputers struggle to tell one from another, yet vital to understanding DNA, fluid motion, and quantum fields.

Abstract: Hand-held electrostatic discharge (ESD) generators (colloquially, ESD Guns) are often used in air-discharge mode to deliver ESD stress to electronic devices and systems. In spite of the ...

If you twist something — say, spin a top or rotate a robot’s arm — and want it to return to its exact starting point, ...

When finding the order of rotational symmetry, it's helpful to mark a reference point to know when you've rotated through the full 360 degrees. For example, you could choose the top right vertex, or ...