Science, asked by varungamerhaha, 1 month ago

show the digram of the working of thermous flask​

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Answered by Richa163
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A vacuum flask is an insulating storage vessel that greatly lengthens the time over which its contents remain hotter or cooler than the flask's surroundings. Invented by Sir James Dewar in 1892, the vacuum flask consists of two flasks, placed one within the other and joined at the neck.
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