Please sub to my new channel for Livestreams

Attached is the channel I would like to start using for the Patreon livestreams, but I need 50 subscribers before YouTube gives me the option to go live. If you could help me out by subscribing to the new channel that would be awesome! If you were unable to catch the stream from earlier today we're still testing my new phase change material (you can still see today's stream in the previous post). I had a bit of an issue in failing to turn on my temp loggers to see the results, so after the stream ended I repeated the experiment and it seems that my PCM has approximately 2x the cooling capability as water ice! I'm quite excited by that. Here's a copy of my post-stream comment with the numbers I came up with for the results:

I ran my experiment again, and this time I remembered to turn the temp logging on! I also improved the experiment with a control cup containing the same amount of water so I could see the natural thermal loss and subtract that from the temp change in the cups containing my samples. The control lost 11C over the test period, so I subtracted 11C from the delta observed in my samples. My ice sample was calculated to have cooled the water by 6.88 J/g•C. My PCM sample registered a cooling of 12.7 J/g•C! Almost 2x the cooling capacity of ice! I'm not sure what to call this measurement since it's a combination of both the specific heat of the substance and the heat of fusion. If anyone wants to check my work, I used 400g of water per sample with a start temp of 91C. My control cooled to 80C over the test period, a delta of 11C. My ice sample was 14.3g, starting temp 1C, ending temp 75C. PCM sample was 20.3g, starting temp 1C, ending temp 68C. I tested the 15g sample of cement also, but it only cooled the water by 1C more than the control. That calculates to a specific heat (in this case it really is the specific heat) of 1.43 J/g•C which is a little high. Usually cement measures between 0.84-1.17 J/g•C, but I doubt the accuracy of this test because the measured difference in temp was small enough for the imprecision of my thermometers to throw it off. I could recheck using a bigger piece of cement but I think 1.43 J/g•C is close enough to the normal range that I trust the results of my ice and PCM tests to be fairly accurate. The PCM seems to be waaaay better than ice. Unless one of you spots an error!