Don´t get confused, there is some distortion related how the soundwaves hit your temperature probe.
We need to understand that you are swinging aroud and the probe stays still.
108 F may be temporary peaks, nothing more.
It can be that 1 MHz waves can cause stronger heat production locally than 3MHz.
It is irrelevant how the slope you plotted fluctuates, just put 0.5 kg of heated rice mass below and everything smoothen down.
And to be sure another 0,5 kg heated mass on top.
Microwaving 0.5 kg rice sock 2 minutes , it has +70 C core temperature, +50 C touching temperature and after 45 minutes laying on the table still has + 40C at surface.
Anyways your slopes looks just fine. I have attached two pics from study linked as well.
https://europep mc.org/backend/ … 44&blobtype=pdf
I have said all the time that penis is a great cooler, muscle mass cools down much slower.
The actual lack of the heated mass causes maintaining heat really tricky, and same goes other way round with the lack of mass.
Additional mass due rice pad changes the scenario a lot.
START 18/13.15 cm Jul 24th 18 (7.09/5.18") NOW 22.5/15.2 cm Fer 12th 20 (8.86/5.98") GOAL 8.5"/ 6"
When connective tissue is stretched within therapeutic temperatures ranging 102 to 110 F (38.9- 43.3 C), the amount of structural weakening produced by a given amount of tissue elongation varies inversely with the temperature. This is apparently related to the progressive increase in the viscous flow properties of the collagenous tissue when it is heated. (Warren et al (1971,1976)