• 1 Post
  • 399 Comments
Joined 3 years ago
cake
Cake day: June 11th, 2023

help-circle











  • dustyData@lemmy.worldtoScience Memes@mander.xyzaliens
    link
    fedilink
    English
    arrow-up
    1
    ·
    edit-2
    21 days ago

    I didn’t make clear, that I mean using something for measuring really large distances, like the length and width of a large building’s base. A typical measure stick would have less stretching than rope, sure, but would also be tedious to measure with. Counting the spins of a wheel as you roll it is trivially easy and quick in comparison. Wood warps, but not really that much.


  • dustyData@lemmy.worldtoScience Memes@mander.xyzaliens
    link
    fedilink
    English
    arrow-up
    5
    ·
    edit-2
    21 days ago

    The spoke of the wheel is the same length used to measure the blocks. Other comments here have gone into detail. If the height of the blocks is the same as the diameter or radius of the wheel used to measure the base, then the relations will always be some function of pi. You don’t have to know any definition of pi for this to always be geometrically true.


  • dustyData@lemmy.worldtoScience Memes@mander.xyzaliens
    link
    fedilink
    English
    arrow-up
    14
    arrow-down
    3
    ·
    edit-2
    22 days ago

    Wheels are always a fraction of pi. Whether you like it or not. Lengths of string can be arbitrary, but a circle’s dimensions are always tightly related to and proportional to pi in some way. I also recall that wheel measurements are more precise for large scale building because, unlike rope, leather and cloth, a wooden wheel doesnt stretch. Two wheels made similar will stay more between a much tighter error factor than two pieces of rope. The rope might start at the same length but will deform differently as they are used.



  • dustyData@lemmy.worldtoScience Memes@mander.xyzMy eyes!
    link
    fedilink
    English
    arrow-up
    6
    ·
    26 days ago

    We used purpose made floor pedals on the sociology research office to control a transcription software. It allowed precise control over a voice recording so any of us lowly students could quickly transcribe interviews and focus groups without removing the hands from the home row of the keyboard. It was already 30 years old technology by the time I got to college. It was apparently first invented for work with actual tape players.



  • Any security system based on expecting good behavior from people is sure to fail. If NPM has no estructural features to enforce safe behaviors, it is vulnerable by default. As no person using it will apply safe practices unless forced to. Specially if the default, easiest, less friction behavior, is inherently unsafe.