• 0 Posts
  • 6 Comments
Joined 6 years ago
Cake day: May 31st, 2020
  • Ephera@lemmy.mltoAsk Lemmy@lemmy.world•*Permanently Deleted*
    31·
    5 days ago

    If it’s a busy intersection, chances are you’re only allowed to cross when the cars get switched to go in parallel to you.

    If it’s a normal street, but still with a high volume of pedestrians, then there’s likely a sensor to detect waiting pedestrians. Also depends on how new the traffic light installation is and how much the municipality spends on this.
    I think, the sensor also allows detecting the number of pedestrians waiting, so they can speed it up.

    If it’s a street where pedestrians only cross sporadically or an old installation, then the button is likely to work and that you have to press it to ever be allowed to cross. Running a sensor all day just isn’t worth it.

    Obviously, the specifics depend on the region, but I feel like these are rules of thumb that make sense pretty much everywhere…

  • Ephera@lemmy.mltoAsk Lemmy@lemmy.world•Why is the US currently obsessed with protein?
    4·
    6 days ago

    Just to note 1.2g per kg per day is a highly contested number. To my knowledge, the usual recommended dietary allowance (RDA) of most countries sits at around 0.8. As it says in that link, this was the RDA in the US, too, before the Trump bros recently increased it.

    And the RDA covers the needs of 97.5% of the population. So, per definition, most people need less than that.
    At the same time, with an average Western diet, you can easily get 1.5g per kg bodyweight per day. There’s cases where folks can’t deal with excess protein due to a kidney failure, and actually getting them to not eat excess protein can be quite the challenge.

    Source for that second block is this podcast/video where a nutrition professor is interviewed: https://zoe.com/learn/podcast-should-i-eat-more-protein