• makeshiftreaper@lemmy.world
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    4 days ago

    I don’t know if this could inadvertently dox you but I’d be curious to see an hourly outside temperature too to see how much hotter a mailbox gets than outside. Based off your first graph here I’m wondering if cars having glass windows makes a greenhouse effect that would make a car hotter than a mailbox, everything else equal?

    • Badabinski@kbin.earth
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      3 days ago

      Seems like a worthwhile thing to do! I’m not worried about doxxing, since someone would have to go to pretty extreme measures to correlate with the exact climate where I’m at. I installed the sensor after the hottest time of day had already passed, but here’s what it looked like:

      A graph showing the outside temperature versus the temperature in the mailbox.

      I’m pretty sure the spikes in the mailbox temperature were due to cloud cover.

      • makeshiftreaper@lemmy.world
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        3 days ago

        In my opinion this pretty conclusively proves that you can’t make a mailbox lasagna. This is the graph I looked but for my previous statement:

        A graph showing the temperature the inside of a car can reach in the sun

        And it shows that a car can hit 130-140 at temps around what you posted. Which is so much wildly higher than what you posted I do have to assume cars have some sort of greenhouse effect going that mailboxes don’t

        Finally when you consider how much of the total volume of a mailbox a lasagna covers, I have to imagine that’ll slow heating down even more! Great work!