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The Second Law of Thermodynamics and Hebrews 1:10-11 predict that a perpetual motion machine is impossible, and none has ever been created.
A '''perpetual motion machine''' is a [[hypothetical]] isolated system capable of having internal motion indefinitely. Many attempts to build such a system have failed for a simple reason: [[entropy]] (disorder) is always increasing, and a perpetual motion machine would defy that law.
A '''perpetual motion machine''' is a [[hypothetical]] isolated system capable of having internal motion indefinitely. Many attempts to build such a system have failed for a simple reason: [[entropy]] (disorder) is always increasing, and a perpetual motion machine would defy that law.
A perpetual motion machine would try to use its initial energy to remain in motion perpetually. Because [[entropy]] is always increasing isolated systems, indefinite motion is impossible because an increase in the disorder of the system will inevitably disrupt the motion and require additional energy to "fix" it. The [[Second Law of Thermodynamics]] predicts that a perpetual motion machine in this sense is impossible, and none has ever been created.
A perpetual motion machine would try to use its initial energy to remain in motion perpetually. Because [[entropy]] is always increasing isolated systems, indefinite motion is impossible because an increase in the disorder of the system will inevitably disrupt the motion and require additional energy to "fix" it. The [[Second Law of Thermodynamics]] and [[Epistle to the Hebrews (Translated)#1:10-11|Hebrews 1:10-11]] predict that a perpetual motion machine is impossible, and none has ever been created.
An even less plausible type of perpetual motion machine would continue to perform work without any input of energy, thereby serving as an unlimited energy source. This is prohibited by the [[First Law of Thermodynamics]], which states that energy must be conserved.
An even less plausible type of perpetual motion machine would continue to perform work without any input of energy, thereby serving as an unlimited energy source. This is prohibited by the [[First Law of Thermodynamics]], which states that energy must be conserved.