xkcd #3187: High Altitude Cooking Instructions
Title text:
1,300,000-1,400,000 ft: Ask a crew member to show you how to use the ISS food warmer.
Transcript:
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Source: https://xkcd.com/3187/
this post was submitted on 29 Dec 2025
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The pressure difference doesn't change how many joules of energy needs to enter the food to cook it.
But it does change how much power you need to use. If you leave the power the same, you'll need more joules because you need more time and are sending more of it to the atmosphere.