Idea 2 for how to break the second law of thermodynamics

[Bobcent]

Hello!

I have another idea for how to break the second law of thermodynamics, and I don't see where this one cracks either. I would be glad if someone could explain this to me.

Kelvin-Planck statement of the second law:

"No process is possible whose sole result is the absorption of heat from a reservoir and the conversion of this heat into work."

Clausius statement of the second law:

"No process is possible whose sole result is the transfer of heat from a cooler to a hotter body."

Here it goes:

First see the drawing below:

As you can see on the drawing, the right body has a bigger opening for EM radiation to escape than the left body does. The two bodies start of at the same temperature. But if more EM radiation goes from the right body to the left body, than vice versa, with time, the left body will heat up, and the right body will cool down. This clearly violates the second law, see Clausius statement above.

This is a hypothetical thought experiment. I realize the practical problems with perfect mirrors and lenses, but theoretically it should be possible?

Grateful for help!

 

[256bits]

Some clarification:
If the bodies are the perfect mirrors, then they do not absorb any radiation, and cannot heat up.

 

[Bobcent]

Some clarification:
If the bodies are the perfect mirrors, then they do not absorb any radiation, and cannot heat up.

To clarify:

The black dot in the middle is the body which emits radiation from being warm. The half circle, and the circle with a little opening, as indicated in the drawing, are the mirrors

 

[Vanadium 50]

Perpetual motion machines are not an acceptable subject here - please reread the PF Rules. We let the first thread stand because we had hoped to educate you on why they were impossible, but we will not have a parade of PMMs here.

 

[sardar]

Hello there! Thank you for sharing your idea on how to break the second law of thermodynamics. While it may seem plausible at first glance, there are a few key points to consider.

Firstly, the second law of thermodynamics is a fundamental law of nature and has been extensively tested and proven through scientific experiments and observations. It is a well-established principle and has not been violated or disproven in any way.

Secondly, your idea relies on perfect mirrors and lenses, which do not exist in reality. In order for this thought experiment to work, these perfect components would need to exist, which is not currently possible.

Lastly, even if we were to have perfect mirrors and lenses, the second law of thermodynamics still holds true. The transfer of heat from a cooler body to a hotter body is not considered a violation of the law as long as there is an overall increase in entropy in the system. In your thought experiment, the overall entropy of the system would still increase due to the transfer of heat from the hotter body to the cooler body.

In conclusion, while your idea is interesting, it does not provide a way to break the second law of thermodynamics. The law remains a fundamental principle in our understanding of the physical world and has not been disproven.