Gas radiation intensity is a function of space: I=I (r). This is recognized in the textbook of heat transfer. Pushing forward two more steps will result in a temperature difference (this is the second type of perpetual motion machine). Please refer to the picture for details.

The second type of perpetual motion machine for gas radiation is the simplest, easy to implement, and commercialized. The wealth generated by the second type of perpetual motion machine can satisfy everyone's desires.

The current war of Russian aggression against Ukraine is trending towards a third world war. If scientists accept the second type of perpetual motion machine, they will find that the things being fought for in the war are no longer scarce, and the war will come to an end. I hope scientists can play their role.