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: ...

Professor Brian Cox explains the concept of entropy and the arrow of time. He uses a pile of sand to explain how entropy is the measure of how many ways in which something can be rearranged. He then ...

THERE is, I fear, a difficulty in drafting Prof. Bryan's definition so as to be clear as well as accurate. This arises when the definition is first given with reference to the entropy of the working ...

Gravity is the most familiar of nature’s forces. It keeps our feet planted on the ground and dictates the movements of planets and stars. Yet, even so, gravity remains one of the greatest mysteries in ...

A new theory suggests that gravity could possibly be the result of entropy. If true, this would mean that everything in the universe would fall apart if it all remained unchanged. This theory tries to ...