Interestingly enough, a group of scientists has claimed to violate the 2LoT.
Check it out here.
My thoughts on it:
The second law is an observational law and not a derived one (except for probability theory). It applies to macroscopic setups.
One of the first challanges to the theory was a thought experiment based on atom sized demons. You make a box with a small hole in it. Put a demon in front of it and seal it. The demon moves aside when an atom from side 1 is heading towards him and lets it into side 2. However, he blocks atoms from side 2. After awhile all the atoms from side 1 will be on side 2 which will have a large pressure increase. You can gain energy from this.
So the secret to violating the 2nd law is to work on the atomic scale with something that can selectively act on particle movements. You still use energy, but you don't need waste heat.
Any thoughts?
Check it out here.
My thoughts on it:
The second law is an observational law and not a derived one (except for probability theory). It applies to macroscopic setups.
One of the first challanges to the theory was a thought experiment based on atom sized demons. You make a box with a small hole in it. Put a demon in front of it and seal it. The demon moves aside when an atom from side 1 is heading towards him and lets it into side 2. However, he blocks atoms from side 2. After awhile all the atoms from side 1 will be on side 2 which will have a large pressure increase. You can gain energy from this.
So the secret to violating the 2nd law is to work on the atomic scale with something that can selectively act on particle movements. You still use energy, but you don't need waste heat.
Any thoughts?