Your skale has rough edges near zero. What errors might occur if you measure the length of a pen with it? How can you correct the error?
Answers
Answer:
Vacuum flask
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Image result for what is thermos flask ?
Image result for what is thermos flask ?
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Description
DescriptionA 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.