In 1952 NBC launched a network radio program featuring Howdy, and in 1954 Howdy Doody became an international television hit with a Cuban and a Canadian show, using duplicate puppets and local talent, including Robert Goulet as Canadian host, Timber Tom.
1 Answer 1. active oldest votes. up vote 1 down vote. You're right that IF the metal calorimeter and the styrofoam calorimeter were both perfect and behaved in the way that we usually pretend calorimeters do (they don't absorb or lose heat) then they should produce identical results, for the enthalpy reason you provide.
This reduces heat transfer by conduction in the polymer. Since the gas is in the tiny microbubbles heat is not transferred by convection in the foam. The low heat conductivity is probably the most important insulating quality. White polystyrene is a good diffuse reflector of radiation emitted by the hot liquid inside. The heat from the radiation that is absorbed remains on the surface and is partially transmitted back to the liquid. Since the outside of the cup remains cooler there is less heat loss by all three methods.