What are some past attempts on creating the Thermos, or another device on trying to keep a liquid to...(cont)?

Question

maintain the same temperature? If you have a link to a website with information, that would be handy too.

Answer 1

did you know the arabs actually were pretty good at this. they offered the leader of the nights templar ice for his water when they captured him his assistant took a drink and had his throat cut. Snow actually is the best natural insulator known to man. my guess is this ice or snow as transported by the arabs in a vessel with a diotmacious substrate for a insulator. ice was a much prized as gold in many cultures.