The clock the team used to demonstrate this principle consists of a pair of quantum dots coupled by a thin tunnelling barrier ...

Exactly 200 years ago, a French engineer introduced an idea that would quantify the universe’s inexorable slide into decay. But entropy, as it’s currently understood, is less a fact about the world ...

Entropy is one of the most useful concepts in science but also one of the most confusing. This article serves as a brief introduction to the various types of entropy that can be used to quantify the ...

Since their discovery at Drexel University in 2011, MXenes — a family of nanomaterials with unique properties of durability, conductivity and filtration, among many others — has become the largest ...

A fundamental rule that determines the fate of the universe The second law of thermodynamics means hot things always cool unless you do something to stop them. It expresses a fundamental and simple ...