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Cake day: May 4th, 2024

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  • Why your spoiler is wrong:

    The gravitational force between two objects is G(m1 m2)/r²

    G = ~6.67 • 10^-11 Nm²/kg²

    m1 = Mass of the earth = ~5.972 • 10^24 kg

    m2 = Mass of the second object, I’ll use M to refer to this from now on

    r = ~6378 • 10^3 m

    Fg = 6.67 • 10-11 Nm²/kg² • 5.972 • 1024 kg • M / (6378 • 10^3 m)² = ~9.81 • M N/kg = 9.81 • M m kg / s² / kg = 9.81 • M m/s² = g • M

    Since this is the acceleration that works between both masses, it already includes the mass of an iron ball having a stronger gravitational field than that of a feather.

    So yes, they are, in fact, taking the same time to fall.













  • pumpkinseedoil@mander.xyztoScience Memes@mander.xyzOxbowin'
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    20 days ago

    Just recently my country exchanged land with a neighbouring country to adjust for the changes of water, each giving and gaining the same amount of land. When water marks the border it’s much easier to know when you’re crossing it.

    Edit: looked it up: in march we (Austria) traded 239 m² with Liechtenstein



  • pumpkinseedoil@mander.xyztoScience Memes@mander.xyzSeriously.
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    2 months ago

    0°F is the coldest night Mister Fahrenheit has ever witnessed, thinking it couldn’t become any colder than this.

    100°F is Mister Fahrenheit’s slightly feverish body temperature.

    ???

    PS: Pretty much all other countries also had their own measurement systems and simply switched to metric because it made sense. I’m glad we did, and that pretty much all others did too.

    PPS: I’d also be up for revamping time measurement, why can’t we have 10h a day, 100 minutes per hour, 100 seconds per minute? 100.000 seconds in total per day, currently we have 86.400 so a second would only become slightly shorter.

    The French tried to implement that in the First Republic, together with 12 months à 30 days per year, 3 weeks à 10 days per month and 5 (6) extra days at the end of the year to make it work (from Christmas to New Year, how thematic!)

    It failed because the French were fearing they’d have to work more (if they’d also only have 2 days off per 10d instead of per 7d). One of the biggest tragedies in French history. Without the week reform the time reform might’ve succeeded.


  • pumpkinseedoil@mander.xyztoScience Memes@mander.xyzSeriously.
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    2 months ago

    Fully agree with you. How does that make sense:

    Really hot summer days (30°C) are 86°F

    Usual summer days (25°C) are 77°F

    Room temperature is ~70°F

    Spring / autumn days (20°C) are 68°F

    Chilly outside / late autumn / early spring days (~10°C) are 50°F

    Cool outside / warm winter days (~0°C) are 32°F

    Cold outside / usual winter days (-10°C) are ~15°F

    Winter nights (bit below -20°C) are ~ -10°F



  • pumpkinseedoil@mander.xyztoScience Memes@mander.xyzMushroom ID
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    2 months ago

    Where I live (mountainous region in Austria) they are everywhere. I just go hiking for a bit so I’m at not too frequented spots and then I can just pick as many as I need, often the floor nearly is more yellow than brown on certain spots.

    We don’t have white oaks here but they typically grow in needle forests.

    (And we call them Eierschwammerl = egg mushrooms, to explain my previous comment, I just think that sounds much nicer than chanterelles)

    Image of a typical spot, took it a month ago ^