Jupiter's Orbital Velocity & Equatorial Velocity cancel?

Discussion in 'Pseudoscience' started by nebel, Jul 31, 2017.

  1. nebel

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    Ocean tidal flows, like winds are created by gradients too, in this case, gravity gradients. but in this thread, it is asserted as an alternative theory, that the gradient between the cycloidal action of orbital and rotational velocity differences are also standing wave gradients.
    here is an item showing that solar heat too , acting on rotating body, Venus in this case, creates standing (at the evening side) atmospheric waves:
    Hokkaido University. "Atmospheric tidal waves maintain Venus' super-rotation." ScienceDaily. ScienceDaily, 23 April 2020. <www.sciencedaily.com/releases/2020/04/200423143050.htm>.
    "--the super-rotation' on Venus is maintained near the equator by atmospheric tidal waves formed from solar heating on the planet's dayside and cooling on its nightside."
     
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  3. nebel

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    The wheel analogy for the orbital, rotating motion of the gas giants, that, like cycloids have at "contact" zero velocity, leads to this observation:
    If one measured the speed (ignoring the boundary layer effect), of the headwind at the tire surface of a racing car, , one would measure the vehicle speed at axle heights, and double the velocity at the top of the tire, and no on -coming wind near the road surface contact area. similarly,
    Any feature of the interplanetary medium ( comparable to the road, the air above it) ) would therefore have a similar impact gradient in it's contact with the planet.
    On Jupiter's equator going from zero to a 26 km/sec 'headwind' and back to standstill every 5 hours. on and on
     
    Last edited: Apr 30, 2020
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  5. DaveC426913 Valued Senior Member

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    There are so many problems with this, it's hard to begin.
     
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  7. origin In a democracy you deserve the leaders you elect. Valued Senior Member

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    it would seem we should see this effect on the earth. Do we?
     
  8. nebel

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    thank you for that relevant question.
    The retrograde motion of the Earth equator at noon is ~460 m/sec, the speed of sound. At the same time the whole planet, center, poles, evening and morning side move forward at ~ 30 000 meter per second. a gradient in the "headwind" of 1.5 %. By comparison
    Jupiter registers a difference of ~ 13 000 m/s to near standstill at noon. > 3250 %
    Earth, Jupiter, Saturn are insulated from some effects of happenings in the planetary field by their magnetospheres, but at some point the effect of these gradients have to be accounted for., and are after all, unresolved issues.
    The bands of Jupiter, the heating of Saturn's atmosphere could all show a factor due to this gradient between the equator and the center, the poles, the leading and trailing sides.
    Double the gradient for midnight for good measure.
    Earth's equator : from 1.5% slower to 1.5 % faster in 12 hours, , Jupiter from ~0 to 26 000 m/s in 5 hours.
     
  9. DaveC426913 Valued Senior Member

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    *sigh*
    Slower/Faster relative to what reference point?
    The atmo, and objects in the atmo don't know they're on a planet moving through space. They are simply on a rotating body that is, effectively, stationary.
     
  10. nebel

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    2,123
    well, good start, gentlemen, start your engines in the racing car analogy (the only way I have to think):
    let us work with the Bloodhound record hopeful. the reference of speed would be over the ground, but also the airspeed, which would vary according to local winds.
    Similarly, planetary orbital speeds refer to displacements on an existing common plane, against which all movements are assigned values. prograde and retrograde. Actual velocities encountered with different elements in the field might vary, such solar wind, directions of photons, magnetic field lines.
    If the speed of idling wheels of Bloodhound ( it is driven by jet, rocket blasts) were measured on their contact area with the ground, ar the footprint would read zero km,, sec. with no wind, that portion of the wheel would have no headwind. (ignoring boundary layer effects).
    A pitot tube in the nose might read 766 mph, near the speed of sound, bu the headwind on top of the wheels, would advance at twice that speed, have twice the windspeed on their upper surface, ~ Mach 2.
    Believe it or not, on rails, part of the wheels of bloodhound would actually go backward, while the tor plange part goes beyong 1550 mph. so
    in the application of the analogy, the planetary field comprises an agreed upon zero velocity standard, against which all velocities Orbital and rotational are stated (the road under Bloodhound) and the variables, direction of particles, magnetic, electric, unknowns even, (the wind, dust over the ground). the wheels are true cycloids in motion. like the nike from NSW university. Now imagine the wheels made of soft material, covered in liquid.
    That is the situation in the cases of the gas giant planets where a near zero velocity with respect to the accepted and the varying content of the planetary field,-- varies from standstill to 20 000 , 26 000 km/sec within 5 hours. time a variation in "headwind". but also
    as another gradient from equator at noon or midnight between poles* and center* and sunup* to sundown* in dimension, when measured against the planetary field. **** these locations maintain a constant forward orbital velocity.
    glad if you raised other questions to address.
     

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