manhattan

thanks for your quick replys both of you. This looks like a great forum you've got here, glad i stumbled upon it

its been many years since i studied physics and am having trouble getting my head around the subject of heat retention in materials. i understand that the specific heat capacity of a material is the measure of energy required to raise 1g of a substance by 1degreeC. If the amount of energy required to change a materials temperature can be calculated by /\Q=mc /\t does this mean a material with a high specific heat capacity is a good insulator? does this also mean that an insulator is good at retaining its heat?