Our physics expert picks his top-five equations, plus a scheme to supply US power needs with a bucket of baseballs. Thanks, ...

In a nutshell Researchers have demonstrated mathematically that quantum systems preserve time-reversal symmetry, meaning ...

Does time always flow in one direction? This perplexing question has captivated philosophers and scientists for centuries, ...

What if time is not as fixed as we thought? Imagine that instead of flowing in one direction—from past to future—time could ...

For over a century, the Maxwell’s Demon paradox has haunted physics. This thought experiment suggests that a tiny, ...

Emmy Noether showed that fundamental physical laws are just a consequence of simple symmetries. A century later, her insights ...

Traditional black holes, as predicted by Albert Einstein's theory of General Relativity, contain what are known as ...

Quantum physics underlies technologies from the laser to the smartphone. The International Year of Quantum marks a century of scientific developments.

An international collaboration sheds new light on the relationship between quantum theory and thermodynamics. The research group demonstrated that while the laws of quantum theory alone do not ...