How do you explain the concept of spin in QM to a 14-year old teen, and why it isn't a vector as in the classical notion of angular momentum?

  • $\begingroup$ See also physics.stackexchange.com/questions/147/… $\endgroup$ – Kyle Kanos Jan 14 '15 at 21:05
  • $\begingroup$ I'm not sure it is possible to explain without using (relatively to a 14 year-old) advanced mathematics. After all, this is a purely QM effect that cannot be pictured. $\endgroup$ – Ryan Unger Jan 14 '15 at 21:07
  • $\begingroup$ Spin is a property like colour or mass. But the one thing that it isn't, is actual "spin". In this sense it is just a name. $\endgroup$ – iantresman Jan 15 '15 at 0:02