This is footage from my experiment of raising water temperature using thermo regulatory psi techniques. https://www.youtube.com/watch?v=FCX-TPnrmu0 Introduction to Thermoball experiment https://www.youtube.com/watch?v=mH2Ydy-ENSo Part 2 of Thermoball experiment https://www.youtube.com/watch?v=b1cuHUuC-rg Part 1 of Thermoball experiment. Part 1 contains entire experimental process. Intro talks about the experiment and shows beginning temperature of the water and Part 2 has end result. I believe it was most likely body heat that caused the temperature change. If you want, just watch the intro and part 2 for before and after.