SSDD
Gold Member
- Nov 6, 2012
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LHe temperatures is 4 deg K. The CMB is 2.7 deg K. Not only is the detector warmer, but the antenna it hits is at 300 deg K. That shows that thermal radiation can and does strike objects warmer than the source.You must have skipped over this part
"The detector element is an extremely sensitive thermistor that is cooled to LHe temperatures in order to decrease the thermal background."
Sorry guy....liquid helium can cool to sub 2k temperatures. I know you want the second law to be false, but it just isn't....
The Fundamentals of Imaging
Frequency Standards and Metrology
https://uu.diva-portal.org/smash/get/diva2:859430/FULLTEXT01.pdf