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Cake day: June 6th, 2024

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  • WolfLink@sh.itjust.workstoScience Memes@mander.xyzRaisins!!
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    5 days ago

    There’s no center of the surface of the balloon (approximating the balloon as a sphere and ignoring the nipple).

    If you are standing on the earth, there is no center of the surface of the earth. The actual center of the earth requires movement in the 3rd dimension, but the surface is 2 dimensional.

    If our universe is hyper spherical, the “center” would be something unreachable; it would require moving in the 4th spacial dimension.








  • WolfLink@sh.itjust.workstoScience Memes@mander.xyzMornings
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    17 days ago

    Updating my computers from Ubuntu 22.04 to 24.04 was a whole day process. It doesn’t help that the upgrade tool requires you to press enter every so often.

    (Yeah yeah I should try other distros. I’ll play with other distros when I’m not spending my time as pictured in the meme.)

    (To be clear this is on a couple computer I personally own. The ones the lab owns are on Ubuntu 20.04 if I’m lucky…)






  • A vector space is when you can:

    • add two Things
    • multiply a Thing by any real number

    And get another Thing that’s the same Kind of Thing.

    By Thing I mean Vector and by Kind of Thing I mean element of the same Vector Space.

    Examples of vector spaces:

    • real numbers
    • complex numbers
    • sets of N numbers (what most people think of when they hear “vector”)
    • matrices
    • polynomials
    • functions
    • quantum states of a given system
    • quantities of apples sold, classified by type of apple

    Examples of Not Vector Spaces:

    • integers
    • negative numbers
    • nonzero numbers
    • unitary matrices
    • apples

    Yeah a few of these come with asterisks I’m happy to answer questions but don’t want to argue with pedants.