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Question:

How to best insulate a cup of water?

with some cotton, aluminum foil, ceran wrap and some paper

Answer:

A wool sock works for meIf that's not good enough, you could add a layer of aluminum foil between folds of the sockPut the glass in the toe of the sock, loop foil around the sock, then pull the top of the sock down over the foil.
1) velvet is a man made synthetic 2) Satin can be made from either man-made or natural fibersSatin is a type of fabric, not a type of fiberMost satin is made from man-made materials, but some more expensive satins are made from 100% silk.

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