Experiment: Can an externally heated object actually heat its heat source?

[claudiu]

The conclusion is here:

Experimental Conclusion: Drawing Arrows and Multiplying != Physical Reality

This is a follow-up of Experiment: Can an externally heated object actually heat its heat source? Which stemmed from: Global warming/climate change . Intro To recap the question I wanted to see for myself is, is it indeed impossible to heat a heat source by reflecting its own heat back at it, or having it heat another object that then heats it in turn? Although it’s obviously the case from lived experience – just picture standing in an aluminum-lined closet, you don’t fear you will burst int…