claim: According to the second law of  thermodynamics such a planetary machine can never exist."
evidences.evidence_id: Black hole:336
evidences.article: Black hole
evidences.evidence: This result, now known as the second law of black hole mechanics, is remarkably similar to the second law of thermodynamics, which states that the total entropy of an isolated system can never decrease.
evidences.votes: NOT_ENOUGH_INFO SUPPORTS NOT_ENOUGH_INFO
evidences.evidence_id: Second law of thermodynamics:38
evidences.article: Second law of thermodynamics
evidences.evidence: It refers to a cycle of a Carnot heat engine, fictively operated in the limiting mode of extreme slowness known as quasi-static, so that the heat and work transfers are between subsystems that are always in their own internal states of thermodynamic equilibrium.
evidences.votes: NOT_ENOUGH_INFO SUPPORTS NOT_ENOUGH_INFO
evidences.evidence_id: Second law of thermodynamics:95
evidences.article: Second law of thermodynamics
evidences.evidence: Such a machine is called a "perpetual motion machine of the second kind".
evidences.votes: NOT_ENOUGH_INFO SUPPORTS NOT_ENOUGH_INFO
evidences.evidence_id: Thermodynamic equilibrium:61
evidences.article: Thermodynamic equilibrium
evidences.evidence: Then, according to the second law of thermodynamics, the whole undergoes changes and eventually reaches a new and final equilibrium with the surroundings.
evidences.votes: NOT_ENOUGH_INFO SUPPORTS NOT_ENOUGH_INFO
evidences.evidence_id: Thermodynamics:12
evidences.article: Thermodynamics
evidences.evidence: The second law defines the existence of a quantity called entropy, that describes the direction, thermodynamically, that a system can evolve and quantifies the state of order of a system and that can be used to quantify the useful work that can be extracted from the system.
evidences.votes: NOT_ENOUGH_INFO SUPPORTS NOT_ENOUGH_INFO