Maybe one day we will be using heat pumps to pull heat out of our refrigerators and freezers and air conditioners and push it into pots of boiling water and ove

Maybe one day we will be using heat pumps to pull heat out of our refrigerators and freezers and air conditioners and push it into pots of boiling water and ovens. https://bayes.wustl.edu/etj/articles/AJP00180.pdf https://bayes.wustl.edu/etj/articles/AJP00180.pdf I wonder how far away we are from MEMS mechanical heat pumps and the like.