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Since the 1960s, electrical heart defibrillators have been routinely used as a treatment for life-threatening cardiac dysrhythmias, especially ventricular fibrillation.
The defibrillators' exact mechanism of action is yet to be determined, but is presumably linked to large-scale electrical depolarization of the heart muscle.
The exact mechanism of defibrillation is not well understood. One theory is that successful defibrillation affects a critical mass of the heart, resulting in insufficient remaining heart muscle to continue the arrhythmia. Recent mathematical models of defibrillation are providing new insight into how cardiac tissue responds to a strong electrical shock.“
Source : Wikipedia
Editor's note:This is a another example of a modern man-made technological system which clearly works, but that no-one as yet understands. Also see : Lithium-ion batteriesplugin-autotooltip__plain plugin-autotooltip_bigLithium-ion batteries
functionality_unexplained
"Although lithium ion batteries are considered as system of choice for variety of mobile and stationary applications, fundamental knowledge is alarmingly required to uncover the underlying principles controlling the bas… and Neural Networksplugin-autotooltip__plain plugin-autotooltip_bigNeural Networks
functionality_unexplained
"“Multilayer neural networks are among the most powerful models in machine learning, yet the fundamental reasons for this success defy mathematical understanding.”
Source : Proceedings of the National Academy of Sciences …
(Note there are many examples of man-made medicines which work in as-yet-unexplained ways - see the medicine / drugs section for examples.)
Also seeElectroconvulsive therapy (ECT)plugin-autotooltip__plain plugin-autotooltip_bigElectroconvulsive therapy (ECT)
Electroconvulsive therapy (ECT), formerly known as electroshock therapy, is a psychiatric treatment in which strong seizures are electrically induced in patients, After treatment, by an unknown mechanism, it provides relief from some sev…
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