Category theory, K theory and homological algebra are interrelated branches of mathematics that comprise a powerful conceptual framework for studying structures and their interconnections. Category ...

The human ecosystem is made of open and closed systems. While the earth is a closed system for matter but an open system for energy, the human body is considered an open system. There is a growing ...

As a child, what did you want to do when you grew up? I wanted to be a mathematician, a pianist, a pastry chef, a newsreader, a Blue Peter presenter, be on a TV cooking show, be in a shampoo advert. I ...

Carlo Rovelli discusses his research on time and his view that it should not appear in the quantum theory of gravity. Robert Hazen and Michael Wong discuss their bold proposal for a new law of nature, ...

The equal sign is the bedrock of mathematics. It seems to make an entirely fundamental and uncontroversial statement: These things are exactly the same. But there is ...