Although elusive, the quantum spin has led to some of the deepest insights we now know. Quantum mechanics has a lot of weird stuff - but there are things that everyone agrees that no one understands.

Quantum mechanics explains why the electrons can keep spinning indefinitely. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. An atom is best ...

This behavior, known as the chiral-induced spin selectivity (CISS) effect, has baffled researchers for over two decades. It shows up in biological processes like photosynthesis and cellular ...