Figure 14.30 shows a cut-away drawing of a thermos bottle (also known as a Dewar flask), which

Question:

Figure 14.30 shows a cut-away drawing of a thermos bottle (also known as a Dewar flask), which is a device designed specifically to slow down all forms of heat transfer. Explain the functions of the various parts, such as the vacuum, the silvering of the walls, the thin-walled long glass neck, the rubber support, the air layer, and the stopper. Hot or cold liquid Glass walls with silvered surfaces Spring centering -device Container Vacuum Rubber support