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l;ove Lucy < 3
Why don't you answer your own questions huh interdependent on thhe internet huh l;ove Lucy < 3
Materials commonly used to insulate thermos include foam, glass, and vacuum-sealed chambers. These materials help to reduce heat transfer, keeping hot liquids hot and cold liquids cold for an extended period of time.
Thermoses are typically made of stainless steel due to its durability and ability to retain heat effectively. Some thermoses may also have a layer of glass or plastic on the inside to further insulate and maintain temperature.
inside a thermos is flask steel materials, it keeps the thermos for about 1 - 2 days.
you can use socks , tin foil Kleenex toilet paper, fiberglass
Insulate the thermos with a very low heat-conducting material. Low density objects such as ceramic or foam are typically good insulators.
The inside of a 1930 thermos was made primarily from iron with a thin coating of silver.
A thermos is too old when it shows signs of wear and tear such as cracks, dents, or rust that may affect its ability to properly insulate and retain temperature. It is also advisable to replace a thermos if it has been used for an extended period of time and no longer maintains the desired level of thermal performance.
Thermos stainless steel mugs are widely available in retail stores. They can also be bought online from Amazon, eBay and Tesco for example. The Thermos website has pictures of the full range of Thermos products.
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Conduction in a thermos is minimized through the use of insulating materials, such as a vacuum-sealed double-wall design or a layer of foam. These materials slow down the transfer of heat through the walls of the thermos, keeping the contents hot or cold for longer periods of time by reducing heat flow from the surroundings into the container.
It is a container that keeps the tempreature constint by using certain matrials.