Thermos has 2 parts responsible for thermal isolation: vacuum and some coating that reflects heat radiation
Also in earth conditions, most of thermal radiation goes to surrounding air, heating it. This is not the case with vacuum, so thermal radiation will be even more efficient
Thermos has 2 parts responsible for thermal isolation: vacuum and some coating that reflects heat radiation
Also in earth conditions, most of thermal radiation goes to surrounding air, heating it. This is not the case with vacuum, so thermal radiation will be even more efficient