In order to build the computers and devices of tomorrow, we have to understand how they use energy today. That's harder than ...

A challenge in materials design is that in both natural and humanmade materials, volume sometimes decreases, or increases, with increasing temperature. While there are mechanical explanations for this ...

For decades, physicists have struggled to reconcile the laws governing the very small with those that describe the vast ...

The second law of thermodynamics is one of those puzzling laws of nature that simply emerges from the fundamental rules. It says that entropy, a measure of disorder in the Universe, must always ...

It’s notoriously difficult to take the temperature of really hot things. Whether it’s the roiling plasma in our Sun, the extreme conditions at the core of planets or the crushing forces at play inside ...