Abstract: Intelligent reflecting surface (IRS) is an enabling technology to engineer the radio signal propagation in wireless networks. By smartly tuning the signal reflection via a large number of ...

The 2026 World Cup is here and because it's an expanded 48-team tournament, this year there will be 104 matches from the group stages up to the final - with an extra knockout round: the last 32. That ...

At 19, Tucker Francis was living his dream. About a decade earlier, he had sailed around the northwest Atlantic with his family, and his passion for the ocean and adventure blossomed. He loved ...

For most people, swimming beneath a thick layer of impenetrable ice is the stuff of nightmares. But for Kildare native, Claire Ryan, it is where she feels most at home. Swimming under ice is an escape ...

If you’ve been interested in FreeCAD but haven’t known where to start, here’s a wonderful video tutorial for FreeCAD 1.1 by [Deltahedra] aimed squarely at how to model a 3D part from scratch while ...

A new freediving world record has been set by Ukrainian diver Kateryna Sadursk. She made history at the Blue Element International Freediving Competition which was held in Scott’s Head Bay, Dominica ...

Git isn't hard to learn, and when you combine Git and GitHub, you've just made the learning process significantly easier. This two-hour Git and GitHub video tutorial shows you how to get started with ...

I had been floating face-down in the swimming pool of Matamanoa Resort in Fiji for nearly three minutes, eyes closed, breathing through a snorkel, when my freediving instructor’s voice reverberated ...

A skilful freediver carried a heavy rock through the ocean floor while holding her breath. Fox News Ohio poll seen as warning sign for GOP 414 alligators removed from Disney World property after ...

On the world’s most serene beaches, learning to dive without oxygen tanks becomes a meditation underwater and above land. On the soft white sands of Grace Bay Beach in Turks and Caicos, I watch the ...