Astronomy | Insulated Flask

New Mexico Tea Company
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Holds 18.6oz; 550 mL

A vacuum-insulation will keep your drink hot or cold, no matter how long you sit in wonder of spacetime!

Manufactured In

China

Materials Used

304 Stainless Steel; BPA free

Extra Info

Here's how it works: the space between the inner and outer flask wall is evacuated, creating a vacuum (well, a partial vacuum anyway...). In order for heat transfer to take place from the outside world into your cold drink, or from your hot drink to the outside world, it needs nearby molecules to excite. If there aren't many molecules nearby, as is the case in a vacuum, the heat's energy can't easily be passed along, so your drink stays close to the temperature it was when you put it into the flask for a really long time. Simply stated, vacuums make great thermal insulation!

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