Abstract: This work studies the unsourced random access (URA) problem via random dictionary learning over Rayleigh block-fading channels with multiple receive antennas. We propose a novel pilot-free ...

When the solar system began to form, everything was chaos. A slew of rocky material was smashing together in a maelstrom that would eventually become the baby protoplanets, comets and asteroids that ...

Abstract: Physics-informed neural networks (PINNs) have recently been utilized to tackle wave equation-based forward and inverse problems. However, they encounter challenges in accurately predicting ...

NASA’s Hubble Space Telescope got a rare look at the aftermath of two cosmic collisions — and helped scientists solve a decades-old mystery. Many years ago, scientists saw a dense, bright spot near a ...

This video explores the question of why the sky is dark, examining key concepts such as the infinite nature of the Universe and Olber’s Paradox. Chapters: 00:00 Introduction 00:53 Why is the sky dark?

When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. In October 2024, news broke that Facebook parent company Meta had cracked an "impossible" problem ...

Bazinga! The great physics problem that Sheldon Cooper and Leonard Hofstadter weren't able to crack in 12 years on the TV show, The Big Bang Theory, an expert from the University of Cincinnati has ...

The space around Earth has become increasingly cluttered with decades of accumulated debris left over from rocket launches, derelict satellites and the occasional antisatellite weapon test—not to ...

"It's like looking back in time in a sense, to that violent period of our solar system when it was less than a billion years old." When you purchase through links on our site, we may earn an affiliate ...

Standing on a college football sideline at Florida Atlantic University, Florida Highway Patrol trooper Craig Gaines quickly took a few steps back as two players barreled toward him. Gaines was working ...

Ramanujan’s elegant formulas for calculating pi, developed more than a century ago, have unexpectedly resurfaced at the heart of modern physics. Researchers at IISc discovered that the same ...