• 0 Posts
  • 64 Comments
Joined 3 years ago
cake
Cake day: June 12th, 2023

help-circle
  • TeddE@lemmy.worldtoScience Memes@mander.xyzPika Pika
    link
    fedilink
    English
    arrow-up
    4
    arrow-down
    2
    ·
    9 days ago

    Well, went and did research (gasp!) and found I had been lied to! Or at least to say it’s complicated. My statement does have merit in that yes! The most popular cameras from 2019 average 25 megapixels, and that puts it neck and neck to several uses of film (frequently animated uses).

    I still think my primary argument is unchanged, but the precise details of my statement are somewhat hyperbolic. In my defence, “better than film” has been the marketing for at least a decade and there are things that digital photography shine at.

    Still, thank you for keeping me in check.

    https://www.learnfilm.photography/the-resolution-of-film-negatives/


  • TeddE@lemmy.worldtoScience Memes@mander.xyzPika Pika
    link
    fedilink
    English
    arrow-up
    3
    arrow-down
    1
    ·
    9 days ago

    Yes, but there’s so much more to compositing a good shot than just focal length. I’m recommending to a new hobbyist to walk before they run. Framing, lighting, perspective - a cheap phone from 2019 off eBay is still better than what your grandparents had, and is better than cameras from 99% of human history.


  • TeddE@lemmy.worldtoScience Memes@mander.xyzPika Pika
    link
    fedilink
    English
    arrow-up
    22
    arrow-down
    9
    ·
    9 days ago

    Dont spend money on fancy new cameras, chances are the camera in your phone is already better than 90% of all cameras in history. Don’t drop a dime on equipment until you’ve hit the limits of the hardware you already have.

    The picture above isn’t a picture of what an expensive camera can do - it’s a picture of what a good photographer can do, enhanced by specialty equipment. In the hands of a novice the equipment cannot produce pictures like this.




  • TeddE@lemmy.worldtoLinux@lemmy.mlAntiviruses?
    link
    fedilink
    arrow-up
    2
    ·
    2 months ago

    Hard disagree - the point is a decade ago there wasn’t enough Linux market share for bad actors to target Linux. Proton is a compatibility layer, which while technically being a sandbox, it isn’t designed around security the way a browser sandbox is. It would not be hard for a virus embedded in a made-for-windows program to identify that it’s actually a proton sandbox, then deploy a Linux-specific payload (assuming the malware designer gave it some forethought for that situation). Heck - there’s plenty of viruses that do their work in scripting languages that don’t care what OS you’re running on.




  • TeddE@lemmy.worldtoScience Memes@mander.xyzIn this essay...
    link
    fedilink
    English
    arrow-up
    2
    ·
    2 months ago

    I apologize. I went back and reread from the top and I see my error.

    My mobile Lemmy client indicates replies with cycling colors, and I had the misunderstanding that your objection was to the axioms presented in Principia Mathematica. But your reply was fair in the context of the axioms you were actually replying to.



  • TeddE@lemmy.worldtoScience Memes@mander.xyzIn this essay...
    link
    fedilink
    English
    arrow-up
    1
    ·
    2 months ago

    Ah! I see. Thanks for clarifying.

    As to m=s(n) and n=s(m), I think that is the motivation behind modular arithmetic and it gets used a lot with rotation, because 12 does loop back around to 1 in clocks, and a half turn to face backwards is the same position whether clockwise or counter. This is why we don’t use natural numbers for angles and use degrees and radians.

    I’m terms of parallels, I personally see that as a strength - instead of having successors (a term that intuitively embeds a concept of time/progression), I typically take the successor function as closer to the layman concept of ‘another’. Thus five bananas is s(s(s(s(🍌)))) and it does have a parallel to five cars s(s(s(s(🚗)))). The fiveness doesn’t answer questions about the nature of the thing being counted (such as, "Are these cars: 🚓🚙🏎️🛵? "). Mathematicians like to use the size of the empty set as an abstract stand-in for when they don’t know what they’re talking about (in a literal sense, not broadly).

    As far as predecessors to 0 - undefined isn’t a problem for natural numbers, just for the people using them. And it makes a certain sense, too. You can’t actually have negative apples (regardless of how useful it may be to discuss a debt of apples).


  • TeddE@lemmy.worldtoScience Memes@mander.xyzIn this essay...
    link
    fedilink
    English
    arrow-up
    5
    ·
    2 months ago

    Not sure what you mean by ‘loops’ - except perhaps modular arithmetic, but there are no natural numbers that are negative - you may be thinking of integers, which is constructed from the natural numbers. Similarly, rational numbers, real numbers, and complex numbers are also constructed from the naturals. Complex numbers are often expressed as though they’re two dimensional, since the imaginary part cannot be properly reduced, e.g. 3+2i.

    I recommend this playlist by mathematician another roof: https://www.youtube.com/playlist?list=PLsdeQ7TnWVm_EQG1rmb34ZBYe5ohrkL3t

    They build the whole modern number system ‘from scratch’






  • TeddE@lemmy.worldtoxkcd@lemmy.worldxkcd #3144: Phase Changes
    link
    fedilink
    English
    arrow-up
    2
    ·
    3 months ago

    My hypothesis is that the freezer motor has to be right at the freezing point and the tray has to have few nucleation points such that when a small spek of water freezes the phase change disperses enough heat to prevent them from immediately following suit, the small flake of ice then rises to the surface. As it continues to cool, further freezing is more likely to occur in the existing crystal. Through a combination of ice’s buoyancy and the surface tension of liquid water, the crystal gets pushed upward compared to liquid water.

    I wonder if the fridge motor’s vibration plays any role on where the fingers form (due to resonance patterns).