VACUUM FLASK Meaning and
Definition
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A vacuum flask, also commonly referred to as a thermos or a Dewar flask, is a specialized container designed to keep the temperature of the contents constant for extended periods by utilizing thermal insulation principles. It typically consists of two layers made of glass or metal with a vacuum-sealed space in between.
The primary purpose of a vacuum flask is to prevent heat transfer through conduction, convection, and radiation. The vacuum within the flask minimizes heat loss or gain due to conduction, as there is no material to conduct the heat across the empty space. The inner and outer layers, often made of glass, metal, or a combination of both, provide thermal insulation to prevent heat transfer by convection and radiation.
The contents of a vacuum flask can be either hot or cold, and the flask effectively maintains their temperature over an extended period. This makes vacuum flasks instrumental for preserving the temperature and freshness of beverages, such as hot coffee, tea, or cold water. They are also used in scientific and research settings to store and transport cryogenic liquids or extremely low-temperature substances, as the vacuum insulation prevents them from rapidly absorbing heat from the surroundings.
In summary, a vacuum flask is a double-walled container that uses a vacuum-sealed space and thermal insulation to hinder heat transfer. It ensures the contents remain hot or cold for an extended duration, making it a versatile and essential household, travel, and scientific tool.
Common Misspellings for VACUUM FLASK
- cacuum flask
- bacuum flask
- gacuum flask
- facuum flask
- vzcuum flask
- vscuum flask
- vwcuum flask
- vqcuum flask
- vaxuum flask
- vavuum flask
- vafuum flask
- vaduum flask
- vacyum flask
- vachum flask
- vacjum flask
- vacium flask
- vac8um flask
- vac7um flask
- vacuym flask
Etymology of VACUUM FLASK
The word "vacuum flask" is a combination of two words: "vacuum" and "flask".
The word "vacuum" comes from the Latin term "vacuus", which means "empty" or "void". It entered the English language in the 16th century and initially referred to a space devoid of matter, specifically air.
The word "flask", on the other hand, originated from the Old English word "flasce", which meant "bottle" or "container". It has its roots in the Old French term "flasque" and the Late Latin word "flasco".
When these two words are combined, "vacuum flask" refers to a container that utilizes a vacuum to maintain the temperature of its contents, whether hot or cold.
Similar spelling words for VACUUM FLASK
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