Entwickelt Open Source in der Freizeit, hat zu viele Fahrräder und ist Fan des HSVH (Das erste “H” steht für “Handball”) und von islieb, Franzbrötchen und guter Schokolade. Wunschliste: alles unter https://www.rausch.de/schokolade/

Wer Amazon mag: https://www.amazon.de/hz/wishlist/ls/3VWK0ZL3MN3ZT

Liberapay: https://liberapay.com/heluecht/donate
BTC: 1AtJ9JVysdhWjSs5qQvp7Xt9xFdjMKSSA7
BCH: qpjg2gwgr35fgz3dxy6lcpw3lt4szrfgev90uk3tfv

  • 0 Posts
  • 71 Comments
Joined 1 year ago
cake
Cake day: June 4th, 2023

help-circle














  • @yogthos Sadly the article is behind a paywall, so I have to make some educated guesses. This idea has got multiple problems. First thing is that especially when you want to transport people (like said in the article), the g-load is really limited. This means that your rail gun would had to be incredibly long to speed up the plane to a significant speed. Remember that you need to travel at 25,000 km/h to stay in orbit.

    But even when you sped up to such a speed, you would experience a ton of drag because of the air resistance. It is only feasible to really speed up in higher regions (> 70-80km). So you would need some kind of first stage that had to carry some kind of a second stage to that region, so that it could accelerate from there. But this is exactly the concept that is used by rockets like the Falcon9/Falcon Heavy or Rocket Labs Electron, who all perform a stage separation in that region and perform a RTLS or controlled splash down to recover the first stage.

    Also you would had only a single possible orbit here. But in reality there are a bunch of different interesting orbits out there.

    Then just think about the costs. Just calculate how much launches with systems like the F9 or the upcoming Neutron you would have to perform, to even reach the break even point.





  • @leraje @muntedcrocodile The architecture of their protocol is highly incompatible with the way ActivityPub works.

    With their protocol you have got the PDS (Personal Data Storage) that stores your data. Your handle is a hostname, but normally it will not be the hostname of your PDS. In fact you can use any hostname that you have control of. Your account itself is described via the DID that will never change - and that doesn’t contain a hostname. This means that you can move between different PDS without people noticing it at all.

    In ActivityPub the data storage is on the same host like your handle and your account’s URL will always point to the host where your data is located. Moving your account is by far not as smooth and highly depends on the system that you are on.