Subject: What is nuclear spin?

Our school text book gives an incomplete definition of nuclear spin. Protons 
are described as a spinning sphere with a positive particle attached to its 
surface. This creates a solenoid effect producing a north and south magnetic 
pole. It also goes on to explain that neutrons also have spin and this is also 
taken into account when describing the net spin of a nucleus. But if neutrons 
are not charged then why would they require the concept of spin to be applied 
to them? This is where our text book falls short of a proper explanation. I 
would research this myself but most sources assume that i have an 
understanding of quantam mechanics which i don't at my schooling level. 
Thankyou for taking the time to read my query.

Re: What is nuclear spin?