Gravity is supposed to be the most familiar force in nature, yet at the deepest level it remains the least understood. A bold ...

Can quantum systems become more disordered, as thermodynamics would predict? Yes, they can - if a proper definition of "entropy" is used. It is one of the most important laws of nature that we know: ...

For more than a century, gravity has been the stubborn outlier in physics, resisting every attempt to merge Einstein’s smooth space-time with the jittery world of quantum mechanics. A new wave of ...

The following is an extract from our Lost in Space-Time newsletter. Each month, we hand over the keyboard to a physicist or two to tell you about fascinating ideas from their corner of the universe.

What's an intuitive way to understand entropy? originally appeared on Quora: the knowledge sharing network where compelling questions are answered by people with unique insights. Answer by Mark ...