Abstract: In this letter, we propose and experimentally demonstrate a high-speed true random number generator (TRNG) by exploiting the probabilistic delay time of threshold switching (TS) in a unified ...

Passing on the classic 555 number, “Stranger Things” is the latest show to offer Easter eggs for viewers who try to call a fictional character. By Victor Mather In the final season of the Netflix hit ...

One spring afternoon, I received a call from my mom. My dad was facing an issue with his phone, specifically with a PDF that wouldn’t open. Despite the native office suite supporting PDFs on his ...

WhatsApp's mass adoption stems in part from how easy it is to find a new contact on the messaging platform: Add someone's phone number, and WhatsApp instantly shows whether they're on the service, and ...

Adding numbers to your passwords makes them more secure. In fact, most sites and services these days require alphanumeric passwords at the very least. Some people ...

In an age of constant communication, receiving phone calls or messages from unknown numbers has become increasingly common. Whether it's a missed call from an unfamiliar number, a potential scam or a ...

A technical issue at the Social Security Administration recently caused phone calls to various field offices to be routed to other offices that didn’t have jurisdiction over the claims, thus making ...

Iowa State Cyclones quarterback Rocco Becht during the football team’s media day at Jack Trice Stadium in Ames, Iowa, on Friday, July 25, 2025. Becht, a redshirt junior, threw for 3,505 yards and 25 ...

Our phones are a direct line to us, but sometimes we don’t want to give our numbers out to just anyone. They have more information attached to them than we might realize. Instead of giving your real ...

When most of us think of two phones, we think of them having two separate numbers. You may have a personal phone and a phone for work that operate completely independently of one another, each with ...

Katie has a PhD in maths, specializing in the intersection of dynamical systems and number theory. She reports on topics from maths and history to society and animals. Katie has a PhD in maths, ...