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==Free Energy as a synonym for perpetual motion==
==Free Energy as a synonym for perpetual motion==
[[image:Brady_Blick.jpg|Article in "Blick" April 14, 2010 Arrest of [[Mike Brady]]|300px|left|thumb]]
[[image:Brady_Blick.jpg|Article in "Blick" April 14, 2010 Arrest of [[Mike Brady]]|300px|left|thumb]]
In [[esoteric]]-[[Conspiracy Theory|conspiracy theory]] circles ''free energy'' is an allegedly inexhaustible type of energy that could replace fossil and renewable energy (solar power) but its use is prevented by influential and unspecified groups. No objective evidence of such an energy is known.
In [[Esotericism|esoteric]]-[[Conspiracy Theory|conspiracy theory]] circles ''free energy'' is an allegedly inexhaustible type of energy that could replace fossil and renewable energy (solar power) but its use is prevented by influential and unspecified groups. No objective evidence of such an energy is known.
Closely related to the esoteric hypothesis of free energy is the idea of a [[Perpetual Motion|perpetual motion]] device. Such a device is not possible, it would violate the thermodynamic laws of conservation of energy in physics. Free energy supporters often use the term "overunity" to express that these claimed machines produce more usable energy than is fed into them(efficiency > 1). A number of frauds and profiteers offer commercial "free energy machines" or generators. In addition, fisherman's stories of an alleged suppression of the invention are often spread. Typical examples are [[Water-fuelled car]], [[Cold Fusion]] or the [[Felix Würth AG]].
Closely related to the esoteric hypothesis of free energy is the idea of a [[Perpetual Motion|perpetual motion]] device. Such a device is not possible, it would violate the thermodynamic laws of conservation of energy in physics. Free energy supporters often use the term "overunity" to express that these claimed machines produce more usable energy than is fed into them(efficiency > 1). A number of frauds and profiteers offer commercial "free energy machines" or generators. In addition, fisherman's stories of an alleged suppression of the invention are often spread. Typical examples are [[Water-fuelled car]], [[Cold Fusion]] or the [[Felix Würth AG]].