• 0 Posts
  • 35 Comments
Joined 2 years ago
cake
Cake day: June 12th, 2023

help-circle
  • That’s not what I meant, I meant if all organic life that produces oxygen disappeared.

    Photosynthesis is generally so slow at it’s job that the current oxygen levels were only built up over hundreds of millions of years. Furthermore, Rubisco, a key enzyme in photosynthesis, surprisingly, is slow and not very good at distinguishing oxygen from carbon dioxide, because it evolved before there was much oxygen on Earth. Therefore a lot of oxygen was produced at the beginning, most of the oxygen we have today in fact, and then not very much thereafter.

    Additionally, the Earth’s oxygen levels stay stable due to the release of oxygen trapped in minerals. Over those hundreds of millions of years, they absorbed it. This absorption and release has kept levels stable for well beyond our existence.

    At least that’s what I got from the PBS video. If you don’t agree, go argue with them, I’m no expert. I’m just forwarding what I learned.


  • I just thought it was an interesting video that challenges what I previously understood about one specific thing 😅 I’m not advocating against the environment, neither is the video, that’d be terrible for many reasons. It’s just that the video is from PBS and seems pretty evidence based in why photosynthesis is quite terrible at converting CO2 to oxygen due to the shortcomings of the enzyme Rubisco and how we could improve that. Nothing more than that. Give it a watch, it’s not some anti-environment conspiracy video















  • I always see comments like these online, but they seem kind of absurd to me, coming from a country where it’s not only totally common to walk dogs off-leash, but completely legal. There’s really very few incidents of dogs darting into the streets here, and actually half the ones I’ve ever seen have been dogs on a lead anyway. A well trained dog doesn’t do that.



  • "1" + 2 === "12" is not unique to JS (sans the requirement for the third equals sign), it’s a common feature of multiple strongly typed languages. imho it’s fine.

    EDIT: I did some testing:

    What it works in:

    • JS
    • TS
    • Java
    • C#
    • C++
    • Kotlin
    • Groovy
    • Scala
    • PowerShell

    What produces a number, instead of a string:

    • PHP
    • SQL
    • Perl
    • VB
    • Lua

    What it doesn’t work in:

    • R
    • C
    • Go
    • Swift
    • Rust
    • Python
    • Pascal
    • Ruby
    • Objective C
    • Julia
    • Fortran
    • Ada
    • Dart
    • D
    • Elixir

    And MATLAB appears to produce 51, wtf idk