• 0 Posts
  • 63 Comments
Joined 2 years ago
cake
Cake day: March 25th, 2022

help-circle



  • Faresh@lemmy.mltoScience Memes@mander.xyzFalling
    link
    fedilink
    English
    arrow-up
    7
    ·
    edit-2
    1 month ago

    But how would that make the bowling ball fall faster? F = G × m₁ × m₂ / r² and F = m₁ × a ⇒ a = F / m = G × m₂ / r², where m₁ is the mass of the ball and m₂ the mass of the planet. So the gravitational acceleration of a bowling ball is independent of its mass (assuming the planet has way more mass than a bowling ball).






  • Faresh@lemmy.mltoScience Memes@mander.xyzSpeed
    link
    fedilink
    English
    arrow-up
    55
    ·
    edit-2
    2 months ago

    I once lived with a sort of science skepticistdenier (didn’t believe in the moonlanding nor did he believe that the earth wasn’t flat). He was of the belief that scientists are deceiving the public and one of the examples he gave was that they claim that the earth rotates at 1 670 km/h but if we look outside that’s very clearly not the case and if jump we aren’t flung at that speed to the side. I spent half an hour in a back and forth trying to explain the concept of relative velocity and inertia. It didn’t go anywhere.

    Edit: changed to denier based on the comment by logos.


  • Something I’ve been for a while now is why this gender disparity is so strong in this specific area of engineering compared to all other engineering areas. People seem to claim it’s because of the “geek” stereotype, but that seems more like a symptom than a cause and I fail to see how it enforces this disparity, considering there’s nothing preventing a woman from being a geek too.











  • When using git and are working on a feature, and suddenly want to work on something else, you can use git stash so git remembers your changes and is able to restore them when you are done. There is also git add -p this allows you to stage only certain lines of a file, this allows you to keep commits to a single feature if you already did another change that you didn’t commit (this is kind of error prone, since you have to make sure that the commit includes exactly the things that you want it to include, so this solution should be avoided). But the easiest way is when you get the feeling that you have completed a certain task towards your goal and that you can move on to another task, to commit. But if you fail you can also change the history in git, so if you haven’t pushed yet, you can move the commits around or, if you really need to, edit past commits and break them into multiple.