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    Planetary velocity varies inversely with a planet's dista... — Carmelics
    Home/Causation
    HistoryEditSee Inverse

    Planetary velocity varies inversely with a planet's distance from the Sun.

    Causation
    ?Rate how convincing each reason is below to see the overall strength.
    1 reason for
    2 reasons against

    Reasons For

    1 perspective
    Reason for
    ?
    • 1.A motive power irradiates from the Sun and diminishes with distance from the Sun.
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    • 2.The greater the motive power acting on a planet, the faster the planet moves.
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    • 3.Therefore, planets farther from the Sun receive less motive power and move more slowly.
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    Reasons Against

    2 perspectives
    Reason against 1 of 2
    ?
    • 1.Kepler's 'motive power' is a causal posit unsupported by independent evidence, functioning as an ad hoc explanatory placeholder.
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    • 2.A regularity between distance and velocity can be empirically confirmed without positing any radiating causal power as its mechanism.
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    • 3.Hume's critique establishes that inferring a productive causal force from observed constant conjunction exceeds what observation licenses.
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    Reason against 2 of 2
    ?
    • 1.Newton's inverse-square gravitational law, not an inverse-distance power, correctly predicts planetary velocities via centripetal acceleration.
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    • 2.If the true causal mechanism is inverse-square gravity, then Kepler's inverse-distance motive power misidentifies the causal structure entirely.
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    • 3.A claim whose supporting causal story is demonstrably false cannot be considered causally well-grounded, even if its kinematic description is approximately correct.
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    Causation

    Related

    A claim whose supporting causal story is demonstrably false cannot be considered...A motive power irradiates from the Sun and diminishes with distance from the Sun...A regularity between distance and velocity can be empirically confirmed without ...Hume's critique establishes that inferring a productive causal force from observ...
    +5 moreShow less
    If the true causal mechanism is inverse-square gravity, then Kepler's inverse-di...Kepler's 'motive power' is a causal posit unsupported by independent evidence, f...Newton's inverse-square gravitational law, not an inverse-distance power, correc...The greater the motive power acting on a planet, the faster the planet moves.Therefore, planets farther from the Sun receive less motive power and move more ...

    Similar

    Therefore, planetary velocity changes continuously as distance from th...90%Therefore, the actual orbital velocity of a planet is less than what t...76%Therefore, planets farther from the Sun receive less motive power and ...75%All planets move in the same direction as the Sun rotates.74%

    Source

    AI-extracted1/3 agreementValid
    SEP: kepler
    View source passageHide passage
    In the third part of AN, chapters 22–40, Kepler deals with the path of the Earth and intends to offer a physical account of the Copernican theory. By so doing he includes the idea that a certain notion of power should be made responsible for the regulation of the differences in velocities of the planets, which in turn have to be established in relation to the planets’ distances. Now, the Copernican planetary theory departs from the general principle that the Earth moves regularly on an eccentric
    Extraction notes

    Validity: Extracted via Max plan + API grounding/validity checks

    Details

    Type
    claim
    Perspectives
    3 (1 for, 2 against)
    Edits
    1 edit