• DoctorSpocktopus@lemmy.ca
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    4 months ago

    “Of course, there was that time that mum forgot me. I didn’t mind at first, but then it got dark, and I got scared. I started crying. It only took me a half hour to remember that she couldn’t hear me. Then I felt the air running out. I pressed my face against the smooth base of the dome, trying to find one of the spots where a crack between the floorboards let the air in, but it was dark, and still, and I couldn’t feel the breeze. My head grew heavy, and I pounded against the glass. Finally, my dad got home, and kicked me out so that he could have his ‘special video’ time in peace.”

  • Nightwatch Admin@feddit.nl
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    4 months ago

    “An airtight container of about 2m^3 contains air at about 1 bar, and 1 human child. Calculate the time until all O2 has been transformed into CO2 and the child will become nonresponsive”

    • cynar@lemmy.world
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      4 months ago

      I had a professor at university who would have considered that a perfectly acceptable tutorial question. We would have to make all of the estimates and assumptions ourselves.

      I almost want to try and calculate the various points of interest (uncomfortable, dangerous, unconscious, and dead). The critical limits would be CO2 level related. CO2 would likely become deadly before all the oxygen was used up.

      It would also be interesting to work out the difference between the child sitting calmly Vs desperately clawing at the inside of the dome with bloodied fingers.