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  • Use of the term 'rocky planets'

    From Gerald Kelleher@21:1/5 to All on Wed Jul 26 21:52:30 2023
    It is really unhelpful to use that term and especially applied to the Earth.

    The Earth is basically a large rotating ball of liquid with a relatively thing fractured surface crust that responds to that rotation in terms of evolutionary geology.

    There is perhaps a reason why liquid planets become more gaseous the further removed from the Sun although the planet Pluto yet the general tendency is from more compact liquid to gas giants.

    The formation of molten liquid and planetary water may go hand in hand with solar system evolution-

    https://webbtelescope.org/contents/media/images/2023/130/01H5MXEYH94ECTWRFDE1WP33ZW

    I suppose I should complain that the childish attempt to exempt the Earth from differential rotation across latitudes which is a common denominator in planetary liquid and gas forms highlights the deficiencies observers are prepared to live with. It is a
    new era with imaging just too good to ignore.

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From Chris L Peterson@21:1/5 to [email protected] on Thu Jul 27 07:42:18 2023
    On Wed, 26 Jul 2023 21:52:30 -0700 (PDT), Gerald Kelleher <[email protected]> wrote:

    It is really unhelpful to use that term and especially applied to the Earth.

    The Earth is basically a large rotating ball of liquid with a relatively thing fractured surface crust that responds to that rotation in terms of evolutionary geology.

    There is perhaps a reason why liquid planets become more gaseous the further removed from the Sun although the planet Pluto yet the general tendency is from more compact liquid to gas giants.

    The formation of molten liquid and planetary water may go hand in hand with solar system evolution-

    https://webbtelescope.org/contents/media/images/2023/130/01H5MXEYH94ECTWRFDE1WP33ZW

    I suppose I should complain that the childish attempt to exempt the Earth from differential rotation across latitudes which is a common denominator in planetary liquid and gas forms highlights the deficiencies observers are prepared to live with. It is
    a new era with imaging just too good to ignore.



    Only the outer core of the Earth is liquid. The large majority of the
    Earth's interior is not.

    "Rocky" refers to the materials, not the phase. Flowing lava is still
    rock.

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From Gerald Kelleher@21:1/5 to Chris L Peterson on Thu Jul 27 08:57:00 2023
    On Thursday, July 27, 2023 at 3:42:30 PM UTC+2, Chris L Peterson wrote:
    On Wed, 26 Jul 2023 21:52:30 -0700 (PDT), Gerald Kelleher <[email protected]> wrote:

    It is really unhelpful to use that term and especially applied to the Earth.

    The Earth is basically a large rotating ball of liquid with a relatively thing fractured surface crust that responds to that rotation in terms of evolutionary geology.

    There is perhaps a reason why liquid planets become more gaseous the further removed from the Sun although the planet Pluto yet the general tendency is from more compact liquid to gas giants.

    The formation of molten liquid and planetary water may go hand in hand with solar system evolution-

    https://webbtelescope.org/contents/media/images/2023/130/01H5MXEYH94ECTWRFDE1WP33ZW

    I suppose I should complain that the childish attempt to exempt the Earth from differential rotation across latitudes which is a common denominator in planetary liquid and gas forms highlights the deficiencies observers are prepared to live with. It
    is a new era with imaging just too good to ignore.



    Only the outer core of the Earth is liquid. The large majority of the Earth's interior is not.

    "Rocky" refers to the materials, not the phase. Flowing lava is still
    rock.


    Before there was even a mention of rotational influences in the Wikipedia section of plate tectonics, it was discussed, for want of a better word, in this newsgroup

    https://groups.google.com/g/sci.astro.amateur/c/Srr3bU12QDg/m/BA-ud34LAwAJ

    All of a sudden, within a year of that proposal in November 2005 and earlier, rotation emerged but much like the new explanation for the direct/retrogrades of Venus and Mercury, the explanations got botched by those who lack the necessary perceptive
    abilities.

    https://en.wikipedia.org/w/index.php?title=Plate_tectonics&oldid=27594978

    You are happy enough to be cannon fodder for people who wouldn't even look at you much less talk with you so will spend the rest of your existence in that manner where you are already being overtaken by events. It is not an insult directed and you and
    others here of the same mindset, it is a way you have chosen for yourselves as things move on.

    All rotating celestial objects with a viscous composition will display differential rotation across latitudes and this mechanism connects the development of oceanic crust off the Mid Atlantic Ridge with the spherical deviation of the Earth organised the
    Earth's rotational characteristics.

    Of course, all the contributors here can't manage to assign the correct equatorial rotation velocity of the crust at 1037.5 mph consistent with an Equatorial circumference of 24,901 miles as per the 24-hour and Latitude/Longitude framework.

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