• 0 Posts
  • 24 Comments
Joined 5 months ago
cake
Cake day: June 25th, 2024

help-circle



  • The original German wording is “Spieglein, Spieglein an der Wand: wer ist die schönste Frau in dem ganzen Land?”. Literally translated that would be “Mirror, mirror on the wall: who is the most beautiful woman in all the land.” I would let “hottest” slide as a more contemporary translation.


  • That’s the beauty about open source: it isn’t beholden to the whims of anyone. If disagree with the Linux Foundation, you’re free to make your own independent fork. Others that agree with you can then start contributing to the fork. And this isn’t a purely theoretical scenario as it has happend with other open source projects before.









  • excral@feddit.orgtoScience Memes@mander.xyzLaunches
    link
    fedilink
    English
    arrow-up
    2
    arrow-down
    2
    ·
    2 months ago

    To escape a body of mass you need to have enogh velocity (kinetic energy) to overcome the gravitational pull of that body. You can imagine it like a ball sitting in a bowl. With little velocity it will just roll back and forth but if it’s fast enough it can roll out of the bowl and escape it’s influence.

    That critical speed is called “escape velocity” and it depends on mass and distance from a body. The escape velocity of earth (from the surface) is about 11.2 km/s and the sun’s escape velocity (from earth orbit) is about 42.1 km/s. Earth orbits around the sun at about 29.8 km/s. If you launch in the direction of Earth’s orbit, you will orbit the sun already at about 41 km/s, so you “only” need 1.1 km/s more to escape the sun, too.

    If you tried to reach the sun, you could launch in the opposite direction leaving you orbiting the sun at about 18.6 km/s. Since there is almost nothing in space you won’t slow down from friction and the orbit won’t decay. Instead you’d have to accelerate opposite the direction you’re traveling. Now, calculating exactly how much you’d need to decelerate isn’t trivial since you don’t want a stable orbit but an elliptical orbit that just touches the sun at the closest point (perihel). I don’t know how much deceleration that takes, but it’s propable that it’s easier than accelerating by 1.1 km/s to escape the sun.



  • The alt right/populists turned politics basically into a game of us vs them where you associate with “your” party like you would with a sports team. If you say something against “their” party, they take it personally just like saying something bad about their favourite sports team. If “their” party screws up they are way more lenient, like they would be if their favourite does a foul. They win and lose with “their” party and make their personal success dependent on it. That might not be rational but it’s normal behaviour for human to associate with groups like that. It just shouldn’t happen with politicians and political parties.