Hi, could someone please give me a brief explanation of what entropy is? Due to my limited understanding what entropy actually is, most of the things I've read about it seem very vague. I've only been seeing entropy popping up in integrals and in sometimes in comments along the lines of entropy being a property of the system. But is that all there is to it? I mean surely there must be some kind of 'physical interpretation.' I can relate things like heat transfer and work done to other things I know about but I just can't grasp what entropy is. Any help would be good thanks.