Researchers have been working for decades to understand the architecture of the subatomic world. One of the knottier questions has been where the proton gets its intrinsic angular momentum, otherwise ...

Although elusive, the quantum spin has led to some of the deepest insights we now know. Quantum mechanics has a lot of weird stuff - but there are things that everyone agrees that no one understands.

When you shine a flashlight into a glass of water, the beam bends. That simple observation, familiar since ancient times, ...

Astronomers measure a black hole's spin by determining its angular momentum, representing the total angular momentum of all matter absorbed beyond the event horizon. A black hole's spin causes the ...

Polarized proton containing spinning quarks and gluons (represented by right-handed and left-handed spirals). The negative Δg solutions (blue) are disfavored relative to the positive Δg solutions (red ...

It's hard to tell when you're catching some rays at the beach, but light packs a punch. Not only does a beam of light carry ...

Earth is steadily spinning like a top, even if we can't see, touch, hear or feel it. So, what would happen if Earth were to abruptly stop rotating? If the spinning were to stop, the angular momentum ...

Quantum mechanics introduces a bunch of new phenomena that seem strange-- wave nature for material particles, particle nature for light waves, entanglement correlations connecting particles over ...

We typically think of quantum measurements as affecting the outcome by taking you from an indeterminate state to a determined one, like a superposition of states "collapsing" into a single eigenstate ...