Thermo-charged capacitors and the Second Law of Thermodynamics
نویسندگان
چکیده
منابع مشابه
Thermo-charged capacitors and the Second Law of Thermodynamics
In this paper we describe a simple vacuum spherical capacitor able to generate a macroscopic voltage between its conductors out of a single thermal source at room temperature: it is a sort of thermo-charged capacitor. The basic idea is trivial and it makes use of two cathodes with different work functions: an inner cathode with work function φ . 1 eV (for example the photo-cathode Ag–O–Cs with ...
متن کاملEvolution and the second law of thermodynamics
Skeptics of biological evolution often claim that evolution requires a decrease in entropy, giving rise to a conflict with the second law of thermodynamics. This argument is fallacious because it neglects the large increase in entropy provided by sunlight striking the Earth. A recent article provided a quantitative assessment of the entropies involved and showed explicitly that there is no conf...
متن کاملIrreversibility and the second law of thermodynamics
The second law of thermodynamics has a curious status. Manymodern physicists regard it as an obsolete relic from a bygone age, while many others, even today, consider it one of the most firmly established and secure achievements of science ever accomplished. From the perspective of the foundations of physics, a particularly interesting question is its relationship with the notion of irreversibi...
متن کاملBayesian second law of thermodynamics.
We derive a generalization of the second law of thermodynamics that uses Bayesian updates to explicitly incorporate the effects of a measurement of a system at some point in its evolution. By allowing an experimenter's knowledge to be updated by the measurement process, this formulation resolves a tension between the fact that the entropy of a statistical system can sometimes fluctuate downward...
متن کاملThe Bayesian Second Law of Thermodynamics
We derive a generalization of the Second Law of Thermodynamics that uses Bayesian updates to explicitly incorporate the effects of a measurement of a system at some point in its evolution. By allowing an experimenter’s knowledge to be updated by the measurement process, this formulation resolves a tension between the fact that the entropy of a statistical system can sometimes fluctuate downward...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Physics Letters A
سال: 2010
ISSN: 0375-9601
DOI: 10.1016/j.physleta.2010.02.056