We propose and investigate a coherent terahertz scheme, which uses a free-electron beam to drive a set of closely patterned sub-wavelength holes. Each hole is an independent electromagnetic resonator ...

Could the universe be spinning like a giant top? This idea, proposed by physicist Nikodem Poplawski, opens surprising ...

Angular momentum is a fundamental quantity in physics that describes the rotational motion of objects. In quantum physics, it ...

The team suggests that if there are small mountains on pulsars, China’s FAST (Five- hundred-meter Aperture Spherical ...

Recent advancements in g-C3N4 photocatalysts enhance H2O2 production and pollutant degradation under visible light through ...

We have discovered legions of strange particles that seem to only have a ghostly existence inside materials. Even so, they are the basis of much modern technology - so are they actually real?

An ancient radio signal generated a soon after the Big Bang, may be the key to understanding the Cosmic Dawn and the Epoch of ...

Long a textbook concept in quantum physics, electron spin is now stepping into the spotlight of catalyst science. The review explains how manipulating spin configurations—like toggling between ...

When invisible dark matter spins, it may form clumps of "vortexes" that stretch across space, forming the cosmic web that ...

We have observed a nearly 4-fold increase in the electron spin resonance (ESR) signal from an ensemble of single-walled carbon nanotubes (SWCNTs) due to oxygen desorption. By performing ...

Until now, scientists believed that galaxy spin directions were random. The fact that so many of them are rotating the same way suggests a surprising level of order in the universe's early structure.