I'm really struggling to understand the science behind wool, and why it's a good insulator. I'm doing an investigation about heat transfer, and the topic I chose is insulators.
The best insulation is air, actually it must be trapped air (not allowed to convect). Wool traps the air, similar to fibreglass or other home insulators.
Wool is a good insulator as it traps air in it and prevents it to flow out carrying heat with it and thus prevents lowering temperature of body