Two mathematicians have proved that a straightforward question—how hard is it to untie a knot?—has a complicated answer.

Electrically controlled silicon photonic devices use carbon nanotube heaters to modulate and filter terahertz waves on chip ...

Here are some of the TV highlights in the coming days from Saturday, November 1, including Celebrity Race Across the World and The Great British Bake Off .

A G1 (minor) geomagnetic storm is often the result of Earth plunging into a fast stream of the solar wind, or when a small, ...

The answer has its roots in Portuguese, Dutch, and English sailors who needed a way to tell how fast they were going in an ...

Ontario will introduce legislation next month to ban the use of speed cameras across the province, Premier Doug Ford announced Thursday, framing it as an affordability measure. Ford has been bemoaning ...

This paper describes Unbend - a new method for measuring and correcting motions in cryo-EM images, with a particular emphasis on more challenging in situ samples such as lamella and whole cells. The ...

A rise in motorists being caught by speed cameras has been blamed for a massive increase in the number of penalty points added to driving licences last year. Figures obtained by Co-op Insurance show a ...

I came into this review thinking of Private Internet Access (PIA) as one of the better VPNs. It's in the Kape Technologies portfolio, along with the top-tier ExpressVPN and the generally reliable ...