• 2 Posts
  • 24 Comments
Joined 1 year ago
cake
Cake day: June 13th, 2023

help-circle








  • Ford says the Level 2 “hands-off, eyes-on” advanced driver assistance system (ADAS) is now also the most widely available system of its kind in Europe.

    I don’t know the capabilities of this system, but most systems can already do this. It is essentially adaptive cruise control and lane assist, but the driver still needs to pay attention. The problem ist that many people will slack off and not pay attention. I like the traffic jam assist of Mercedes much more. It is Level 3 and the driver does not need to pay attention under 60 kph.




  • Thats false! There is already a link to the wikipedia article, but here is the relevant quote: „but uses hardware restrictions or digital rights management (DRM) to prevent users from running modified versions of the software on that hardware.“

    It is not a violation of the GPL 2, the license of the Linux kernel, but only the GPL 3 which was basically created for this case. Linus Torvalds is a big defender of the GPL 2 and said that Tivo provided good patches for the hardware they used.









  • I once taught private lessons in math on calculating the area of a circle and I wanted to show the students how much cheaper per area a larger pizza is. So we of course got the diameters of pizzas from their favorite restaurant and started calculating. Then we found out that the normal sized pizza was actually the cheapest per area. It wasn‘t quite what we expected, but a very good math lesson for the attendees nonetheless: The owner lost money, because they were bad at maths.


    • Use sqlite instead of Postgres, MariaDB
    • Avoid enterprise software (Kubernetes, Elastic Search)
    • Only use projects with efficient programming languages such as Go, Rust, etc.
    • Try to run things bare metal
    • Lookout for projects which name themself minimal or light-weight

    I use a Raspberry Pi 2 to self host a Dashboard written in Rust (Axum), a RSS reader called yarr and a music streaming server Navidrome. The latter two are written in Go and very resource efficient. The electricity bill should be under a Euro a month (6.4W max power consumption).


  • Thanks for your comment. Not wrong in the sense that the data is wrong or faked, but that the metric is not useful. Especially when better metrics are readily available for that region. Can you name me one prediction or result which you can infer from the frequency of train travel other than „fun facts“? (I am actually really curious :) ). With the modal split you can for example calculate CO2 emissions or estimate needed capacity increases if you want to replace one mode with another and much more.