XKCD comic #3187 "High Altitude Cooking Instructions" https://xkcd.com/3187/ transcript & explanation from ExplainXKCD wiki https://www.explainxkcd.com/wiki/index.php/3187:_High_Altitude_Cooking_Instructions transcript: High altitude cooking instructions: 3,500-6,500 ft: Add ½ cup water, increase cook time to 12 minutes 6,500-9,500 ft: Add 1¼ cups water, increase cook time to 18 minutes 250,000-450,000 ft: Orient reentry vehicle for aerodynamic stability. Deploy parachutes at 10,000 ft. Descend, keeping crew capsule tightly covered, for 3-4 minutes. After splashdown, follow sea level 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. explanation: At higher altitudes, cooking experiences extra complications. This was previously mentioned in 2153: Effects of High Altitude. This comic imagines food preparation instructions with additional caveats specifically for high-altitude cooking. While the first two sections are reasonable accommodations, given the lower boiling point of water under less pressure, for altitudes of 3,500-6,500 ft (1-2 km) and 6,500-9,500 ft (2-3 km), the instructions - as is typical for xkcd - soon veer into absurdity. At an altitude of 250,000-450,000 ft (approximately 76-137 km), the instructions assume the user is partaking in some kind of controlled spaceflight. The "cooking instructions", therefore, are instead instructions for reentry [...truncated to fit alt-text...]

XKCD comic #3187 "High Altitude Cooking Instructions" https://xkcd.com/3187/ transcript & explanation from ExplainXKCD wiki https://www.explainxkcd.com/wiki/index.php/3187:_High_Altitude_Cooking_Instructions transcript: High altitude cooking instructions: 3,500-6,500 ft: Add ½ cup water, increase cook time to 12 minutes 6,500-9,500 ft: Add 1¼ cups water, increase cook time to 18 minutes 250,000-450,000 ft: Orient reentry vehicle for aerodynamic stability. Deploy parachutes at 10,000 ft. Descend, keeping crew capsule tightly covered, for 3-4 minutes. After splashdown, follow sea level 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. explanation: At higher altitudes, cooking experiences extra complications. This was previously mentioned in 2153: Effects of High Altitude. This comic imagines food preparation instructions with additional caveats specifically for high-altitude cooking. While the first two sections are reasonable accommodations, given the lower boiling point of water under less pressure, for altitudes of 3,500-6,500 ft (1-2 km) and 6,500-9,500 ft (2-3 km), the instructions - as is typical for xkcd - soon veer into absurdity. At an altitude of 250,000-450,000 ft (approximately 76-137 km), the instructions assume the user is partaking in some kind of controlled spaceflight. The "cooking instructions", therefore, are instead instructions for reentry [...truncated to fit alt-text...]