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  • The December Solstice 2022

    From Gerald Kelleher@21:1/5 to All on Sat Dec 17 04:32:24 2022
    https://epic.gsfc.nasa.gov/

    Seen from the orbital plane, this is what our planet looks like presently as the South and North poles turn parallel to that orbital plane as a function of the orbital motion of the Earth. They are now arriving at their respective position furthest from
    the planet's divisor.

    After the December Solstice, as the poles continue to turn, the radius between the poles and the divisor begins to shorten and subsequently, the circumference where the Sun constantly remains in view or out of sight with the North/South poles at their
    centre begins to contract until the March Equinoxes where the spectacle switches.

    Introducing two surface rotations in combination and being responsible for the seasons is no small matter as it replaces the 'tilting' Earth or worse. It is not helped by having any organisation make the adjustment for multiple different reasons and most
    of them self-serving and mediocre.

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From Gerald Kelleher@21:1/5 to All on Mon Dec 19 02:58:39 2022
    Teaching students

    Our seasons which include the Equinox and Solstice milestones, result from two surface rotations to the Sun acting in combination, so the explanation will be disliked by those who omit this observable fact. When the time-lapse of Uranus speeds up about
    50 seconds in, readers can see the planet turn South to North (daily rotation) and a slower rotation from right to left as a function of the orbital motion of the planet and all planets-

    https://www.youtube.com/watch?v=612gSZsplpE

    Daily rotation is relatively easy to explain as it creates the day/night cycle with one sunrise/noon/sunset cycle every 24 hours. The surface rotation as a function of the orbital motion as the entire surface turns parallel to the orbital plane takes a
    bit of explaining. Still, any high school student will enjoy it with familiarity.

    Tell the student that their entire body represents the surface of the Earth as they walk/orbit around a stationary object representing the central and stationary Sun.

    The floor represents the road or orbital plane along which the Earth travels through space and around the Sun, while their nose represents roughly where the North pole is relative to the orbital plane.

    Tell them to keep their nose pointed in the same direction as they walk around the object imitating the Earth's constant alignment throughout the year-

    https://www.youtube.com/watch?v=BYy0EQBnqHI

    They will quickly discover when they start out on the journey that, in order to keep the constant alignment, they have to walk sideways, then backwards, then sideways in the opposite direction before returning to face forward as they complete their
    circuit. Tell the student that, at one time or another, throughout their circuit, different parts of their body face the central object, and this happens with the Earth to the Sun and other planets also. This is where the surface rotation as a function
    of the orbital motion of the Earth comes from, along with all its milestones.

    Of course, some will dislike it; however, for those who make the effort, it will become enjoyable and productive.

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From Gerald Kelleher@21:1/5 to All on Fri Dec 23 01:54:25 2022
    As the North pole continues to turn parallel to the orbital plane as a function of the orbital motion of the Earth, the radius between the polar location and the planet's divisor begins to shorten and with it, the contraction of the circumference where
    the Sun remains totally out of sight.

    In terms of the rate of expansion and contraction of those circumferences from Solstice to Solstice, the rule of twelfths applies where the smallest changes occur around the Solstices and the more rapid around the Equinoxes similar to the tides-

    https://en.wikipedia.org/wiki/Rule_of_twelfths

    Of course, the circumference where the Sun remains in view or out of sight switches at the Equinoxes at the polar latitudes and this is one of the more exciting features based on two surface rotations acting in combination.

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)