Hang this up in your time machine


Previously, previously, previously, previously.

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4 Responses:

  1. Tha_14 says:

    Video is not playing, bad upload?

    • jwz says:

      Turns out, converting a 74MB GIF to an MP4 is not something my server is really excited about doing at the moment. Please hold.

  2. Steve Allen says:

    Alas that as of 2003 the IAU recommends ICRS as the coordinate reference system, and the pole of that system is fixed in space forever regardless of where the pole of the earth is pointing. So this depicts the way that celestial coordinates used to work but do not anymore.

  3. Cat Mara says:

    "Slumber, watcher, till the spheres,
    Six and twenty thousand years
    Have revolv'd, and I return
    To the spot where now I burn.
    Other stars anon shall rise
    To the axis of the skies;
    Stars that soothe and stars that bless
    With a sweet forgetfulness:
    Only when my round is o'er
    Shall the past disturb thy door."

  • Previously