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.
Modern thermoses are usually made out of layers of plastic that help reduce heat transfer. Some thermoses also contain layers of Styrofoam that further reduce heat transfer. If you use a thermos today, you can be fairly certain that, hours later, your soup will still be hot or your lemonade will still be cold !