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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. Michael Taft 空‏ @OortCloudAtlas 13 Oct 2019
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      One of the most beautiful things I have ever seen:https://youtu.be/-0JxkZjwpRg 

      3 replies 2 retweets 23 likes
    2. Joscha Bach‏ @Plinz 13 Oct 2019
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      Replying to @OortCloudAtlas

      Now riddle me this: how is it possible that the outer moon moves faster than the one on the lower orbit?

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

      Hmm... ages since I studied physics. If the orbit is stable & circular, the gravitational force and centripetal force should be equal. The mass of the moons cancels out, and so the higher radius orbit is normally slower. So... the higher orbit moon is elliptical or decaying?

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

      Here is another one: if Jupiter rotates around itself in 9h, and the moon around Jupiter in 42h, why does the moon appear to be moving at a higher velocity than the surface below it, despite being seen from 10 Mio km?

      12:11 PM - 13 Oct 2019
      2 replies 0 retweets 0 likes
        1. New conversation
        2. 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
        3. 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
        4. 13 more replies
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        2. Tom Zimbardo‏ @TomMostlyZen 13 Oct 2019
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          Replying to @Plinz @OortCloudAtlas

          I was like argh that’s really hard, but then I remembered it’s probably just parallax

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

          But is the parallax moving in the right direction?

          0 replies 0 retweets 0 likes
        4. End of conversation

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