Question: What is the period of revolution of the planet that seemed to buck the gravitational laws of the man who proposed that innate inertial is the natural state of objects?

<P0-S0> It was only the orbit of the planet Mercury that Newton's Law of Gravitation seemed not to fully explain. <P0-S1> Some astrophysicists predicted the existence of another planet (Vulcan) that would explain the discrepancies; however, despite some early indications, no such planet could be found. <P0-S2> When Albert Einstein formulated his theory of general relativity (GR) he turned his attention to the problem of Mercury's orbit and found that his theory added a correction, which could account for the discrepancy. <P0-S3> This was the first time that Newton's Theory of Gravity had been shown to be less correct than an alternative. <SEP> <P1-S0> john locke in particular exemplified this new age of political theory with his work two treatises of government. <P1-S1> in it locke proposes a state of nature theory that directly complements his conception of how political development occurs and how it can be founded through contractual obligation. <P1-S2> locke stood to refute sir robert filmer's paternally founded political theory in favor of a natural system based on nature in a particular given system. <P1-S3> the theory of the divine right of kings became a passing fancy, exposed to the type of ridicule with which john locke treated it. <P1-S4> unlike machiavelli and hobbes but like aquinas, locke would accept aristotle's dictum that man seeks to be happy in a state of social harmony as a social animal. <P1-S5> unlike aquinas's preponderant view on the salvation of the soul from original sin, locke believes man's mind comes into this world as tabula rasa. <P1-S6> for locke, knowledge is neither innate, revealed nor based on authority but subject to uncertainty tempered by reason, tolerance and moderation. <P1-S7> according to locke, an absolute ruler as proposed by hobbes is unnecessary, for natural law is based on reason and seeking peace and survival for man. <SEP> <P2-S0> Mercury is the smallest and innermost planet in the Solar System. <P2-S1> Its orbital period around the Sun of 88 days is the shortest of all the planets in the Solar System. <P2-S2> It is named after the Roman deity Mercury, the messenger to the gods. <SEP> <P3-S0> This law is an extension of Galileo's insight that constant velocity was associated with a lack of net force (see a more detailed description of this below). <P3-S1> Newton proposed that every object with mass has an innate inertia that functions as the fundamental equilibrium "natural state" in place of the Aristotelian idea of the "natural state of rest". <P3-S2> That is, the first law contradicts the intuitive Aristotelian belief that a net force is required to keep an object moving with constant velocity. <P3-S3> By making rest physically indistinguishable from non-zero constant velocity, Newton's First Law directly connects inertia with the concept of relative velocities. <P3-S4> Newton's First Law of Motion states that objects continue to move in a state of constant velocity unless acted upon by an external net force or resultant force. <P3-S5> Specifically, in systems where objects are moving with different velocities, it is impossible to determine which object is "in motion" and which object is "at rest". <P3-S6> In other words, to phrase matters more technically, the laws of physics are the same in every inertial frame of reference, that is, in all frames related by a Galilean transformation. <SEP> <P4-S0> the concept of inertia can be further generalized to explain the tendency of objects to continue in many different forms of constant motion, even those that are not strictly constant velocity. <P4-S1> the rotational inertia of planet earth is what fixes the constancy of the length of a day and the length of a year. <P4-S2> albert einstein extended the principle of inertia further when he explained that reference frames subject to constant acceleration, such as those free-falling toward a gravitating object, were physically equivalent to inertial reference frames. <P4-S3> this is why, for example, astronauts experience weightlessness when in free-fall orbit around the earth, and why newton's laws of motion are more easily discernible in such environments. <P4-S4> if an astronaut places an object with mass in mid-air next to himself, it will remain stationary with respect to the astronaut due to its inertia. <P4-S5> this is the same thing that would occur if the astronaut and the object were in intergalactic space with no net force of gravity acting on their shared reference frame. <P4-S6> this principle of equivalence was one of the foundational underpinnings for the development of the general theory of relativity.