An Implementation of Maxwell's Demon

Thread starter Hornbein
Start date Jan 9, 2016
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Demon Maxwell's demon

In summary, Maxwell's Demon is a thought experiment that involves a hypothetical creature with the ability to sort and separate molecules, creating a temperature difference and violating the second law of thermodynamics. Scientists have attempted to create an implementation of this concept using various methods, but none have been successful in violating the second law. Some criticisms of this implementation include its violation of a fundamental law of physics and its implications for the role of information and measurement in thermodynamics. While the implementation may not be possible, it has led to advancements in information theory and computation, and sparked discussions about entropy and more efficient engines. Ultimately, the concept of Maxwell's Demon challenges our understanding of the universe and the laws that govern it.

Jan 9, 2016

Hornbein

http://physics.aps.org/articles/v8/127

It uses energy so it doesn't break any laws.

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Jan 9, 2016

DaveC426913

Gold Member

Right. So the only remarkable thing about this little device is that it is autonomous. It still uses energy, like a tiny heat pump.

1. What is Maxwell's Demon and how does it relate to thermodynamics?

Maxwell's Demon is a thought experiment proposed by James Clerk Maxwell in 1867. It is a hypothetical creature that has the ability to sort and separate molecules based on their speed, thus creating a temperature difference and violating the second law of thermodynamics.

2. How did scientists attempt to create an implementation of Maxwell's Demon?

Scientists have attempted to create an implementation of Maxwell's Demon using various methods such as using a mechanical gate, a computer simulation, and a quantum system. However, none of these attempts have been able to successfully violate the second law of thermodynamics.

3. What are some criticisms of the implementation of Maxwell's Demon?

Some criticisms of the implementation of Maxwell's Demon include the fact that it goes against the second law of thermodynamics, which is a fundamental law of physics. It also raises questions about the role of information and measurement in thermodynamics and the possibility of perpetual motion.

4. Can the implementation of Maxwell's Demon have any practical applications?

While the implementation of Maxwell's Demon may not be possible, the concept has led to advancements in fields such as information theory and computation. It has also sparked discussions about the nature of entropy and the possibility of creating more efficient engines.

5. What are the implications of the implementation of Maxwell's Demon for our understanding of the universe?

The implementation of Maxwell's Demon raises questions about our current understanding of the laws of thermodynamics and whether there are exceptions or loopholes that we have yet to discover. It also challenges our understanding of the role of information and measurement in the universe.