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Plinz's profile
Joscha Bach
Joscha Bach
Joscha Bach
@Plinz

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Joscha Bach

@Plinz

FOLLOWS YOU. Artificial Intelligence, Cognitive Architectures, Computation. The goal is integrity, not conformity.

San Francisco, CA
bach.ai
Joined April 2009

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    1. Tom Zimbardo‏ @TomMostlyZen 13 Oct 2019
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      Replying to @Plinz @OortCloudAtlas

      Ok, is Jupiter actually rotating towards the left of the camera and the apparent motion of the moons actually the fact that they are falling behind, relative to the rotation of the eye of the storm? But then that would mess with my answer to the first riddle...

      2 replies 0 retweets 0 likes
    2. Joscha Bach‏ @Plinz 13 Oct 2019
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      Replying to @TomMostlyZen @OortCloudAtlas

      I know, right? If you are a proper physicist you won't sleep tonight

      2 replies 0 retweets 0 likes
    3. Joscha Bach‏ @Plinz 13 Oct 2019
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      Replying to @Plinz @TomMostlyZen @OortCloudAtlas

      Jupiter is really rotating to the right (anti clockwise when seen from the north pole), of course, and so are the moons, and afaik Cassini was passing it from left to right at a distance of 140 radii, while Io was at 24 radii...

      1 reply 0 retweets 0 likes
    4. Tom Zimbardo‏ @TomMostlyZen 13 Oct 2019
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      Replying to @Plinz @OortCloudAtlas

      Was the camera upside down? So north pole is at bottom? Then my earlier answer would make sense because it looks like the storm clouds are moving to the left, and that’s the only way that the planets could be falling behind and the outermost planet falling behind more quickly

      1 reply 0 retweets 0 likes
    5. Joscha Bach‏ @Plinz 13 Oct 2019
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      Replying to @TomMostlyZen @OortCloudAtlas

      The Red Spot is below the equator, so probably no

      1 reply 0 retweets 0 likes
    6. Tom Zimbardo‏ @TomMostlyZen 13 Oct 2019
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      Replying to @Plinz @OortCloudAtlas

      Ok. It’s a time lapse movie, assembled from many photographs. Someone at NASA fucked up and compiled the series of photographs BACKWARDS. North Pole is at top, but rotation appears to be toward left, with planets falling behind Jupiter’s rotation and appearing to move right

      1 reply 0 retweets 0 likes
    7. Tom Zimbardo‏ @TomMostlyZen 13 Oct 2019
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      Replying to @TomMostlyZen @Plinz @OortCloudAtlas

      Moons must be falling behind rotation of planet because outermost moon (Europa) appears to be moving faster but Europa orbits slower than Io as it’s at the higher orbit. So planet must be rotating left as it appears to be.

      1 reply 0 retweets 0 likes
    8. Tom Zimbardo‏ @TomMostlyZen 13 Oct 2019
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      Replying to @TomMostlyZen @Plinz @OortCloudAtlas

      Anyway, Cassini went to Saturn. It only flew by Jupiter. So either it is Cassini doing a flyby rather than being in orbit, in which case it could have been flying contra to the orbital rotation, or it was actually filmed by Juno in orbit and filmed backwards or upside down.

      2 replies 0 retweets 0 likes
    9. Joscha Bach‏ @Plinz 13 Oct 2019
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      Replying to @TomMostlyZen @OortCloudAtlas

      You can look up the trajectory. It was a flyby. Yes, I think the video is played backwards.

      1 reply 0 retweets 1 like
    10. Tom Zimbardo‏ @TomMostlyZen 13 Oct 2019
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      Replying to @Plinz @OortCloudAtlas

      Mystery solved 😁

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      Joscha Bach‏ @Plinz 13 Oct 2019
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      Replying to @TomMostlyZen @OortCloudAtlas

      But the outer moon is still faster

      10:18 PM - 13 Oct 2019
      1 reply 0 retweets 0 likes
        1. New conversation
        2. Tom Zimbardo‏ @TomMostlyZen 13 Oct 2019
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          Replying to @Plinz @OortCloudAtlas

          If the planet rotated toward the right, faster than the moons, they would appear to travel to the left, with the outermost, slower moon travelling apparently more quickly to the left, because it is falling behind the planets rotation more quickly than the innermost faster moon /1

          1 reply 0 retweets 0 likes
        3. Tom Zimbardo‏ @TomMostlyZen 13 Oct 2019
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          Replying to @TomMostlyZen @Plinz @OortCloudAtlas

          But if the time lapse movie was compiled in reverse (or, for that matter, filmed upside down) then the apparent trajectories would be reversed, which is what we seem to see, but the apparent relative difference in speed would be maintained /2

          1 reply 0 retweets 0 likes
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