The method that I came up with for using bimetallic strips tute temperature took some time to develop, and it's fairly crude. A small mana engine drives a derator, with the bimetallic strip ag as a switch to open or close a circuit to a seotor, which will mirror the drive of the mana engine when the switch is closed. Sih reas we're ied in occur above the boiling point of water, we're going to use pressed pnt oils as a fluid medium tute temperature. The bimetallic strip will be submerged in the oil as well to detect temperature.

  The very basic method I've decided to go with for temperature regution is having a copper pte be moved in and out of tact with both a heat fluorite pte and the tainer of oil. For safety reasons, the motor will push the pte in to add heat to the system, and the spring will remove the pte. To do this, the switch will remain closed at lower temperatures, and be desigo open as it heats up. For even more safety, a sed less sensitive switch also be added that closes at an even higher temperature, which would then move the heat pte down and away from the system, in case the ductive pte gets jammed somehow.

  The bimetallic strips were easy enough to make by simply using a roller at high temperatures to bond the two metals together. In our case, we're using steel and brass for our two metals. Another useful fun for bimetallic strips I'm utilizing is using them as a thermometer. After designing a set helical spiral, I was able to make use of the expansion properties of the metals to turn a dial along a temperature gauge. By using a regur themometer and water, I was able to set the scale that this bimetallic thermometer could measure. While it does still have a few degrees of error, it'll fun well for measuring temperatures above the boiling point of water that I'd otherwise be in the dark about.

  Making bimetallic strips that I could use, developing thermometers with them, making the gssware I needed and building the derators and motors took me a total of 16 days. Theing the diethyl ether rea figured out manually took another 30 days. The biggest problem that I'd run into was I kept actally causing small fires and explosions, shattering the gssware I'd made. I was w with azeotropic ethanol and our trated sulfuric acid. What I found was that for diethyl ether produ, the temperature actually o be kept fairly low, at only about 280 degrees Fahre. If it went too high, the yield nearly pletely disappeared, or caught fire, and below that very little happened. For all this testing, I was manually operating things using thermometers to jot down temperatures that things were happening at.

  Once I knew what temperatures I needed, it was fairly easy to tuhe bimetallic strips in the oil because all I o do was adjust the pin position that tact would eventually be made or removed at. So, at 280 degrees farehe first pin would lose tact, and the motor would lose power, allowing the spring to push the tact pte away, no longer providing direct heat to the oil. At 300 F, the sed strip would close tact, moving the heating pte down, further away from the oil.

  I quickly found, however, that the ambie from the heat crystal was still a little too high for my liking so, rather than just having an air gap between the crystal pte and oil tainer, I added a thinner lightstohat would move into pce behind the copper tact pte. Either side of the lightstone yer has an air gap between the tainers, so it more than doubled the insutioweewo pos. Doing that seemed to work.

  By using ground birds as test subjects throughout the process, I was able to determine when I was makiher versus just distilling acid mixed with ethanol. I'm also sorry to say that a few ground birds ended up perishing due to overexposure to impure ether a few times. Ultimately, I found that I o distill the ether, and tried a few differehods to help purify it. Iingly, using pure salt seemed to help quite a lot. Based on what I saw, the salt is insoluble iher, but would help turn the dissolved water into a brine, increasing it's boiling point and making separations easier.

  The step will be testing the meically automated process of temperature trol. If that works somewhat well, then I more easily dedicate a few demons to handling the ether produ process. Though I'll o be somewhat careful about it. Ether is quite potent and has unique effects on the brain, making it somewhat addictive. The st thing we need is a bunch of ether addicts running amok on the isnd.

  The meical process ended up being a lot of trouble. Many moving parts and tact issues were the biggest reasons it was difficult. Ultimately, I found that the tact ptes also o have some amount of oil betweeo allow them to move easily and have good tabsp; That wasn't ideal, as it meant that I o plicate the process somewhat, but I was ultimately able to devise a system that would drip a small amount of oil on the copper pte whe was in motion. That way it would lubricate itself every time it would i or withdraw from the system.

  After that, I had to do a lot of fiuning on the speed that the motor would drive a rad pinion to ihe pte, as well as the necessary spring tension to not stop the motor, nor drive the rack back too quickly. Fiuning ended up taking another 17 days, but ultimately, I got it w fortably. I ran a few batches of ether produ, dripping ihanol and distilling it off, until I was fident that it would run effectively and could easily be stockpiled over time.

  I then brought o demons to work on this process to begin stockpiliher for us. Training them only took four days before I was fident that they'd be able to hahe job and maery, and know how to tell when something was w wrong.

  We're quickly approag the pletion of the mana crystal now. My estimate it about another year until it's plete. I've been w on the acid aher produ for almost a year now, and we've just entered springtime again. I still have the nitrous oxide produ to develop before I'm fident in our ability to actually ahetize anything for a prolonged period of time. The ether does a great job of knog out the ground birds, but I've found that exposing them for too long always results ih, even when I supplement them with higher oxygen trations from our liquid oxygen supply. So I'm hoping that by l the ether tration after knog them out and supplementing it with nitrous oxide and oxygen, we'll be able to put them under for a much longer period of time safely.

  I checked in on hress was ing oificial s and pathways to them, the eagle feeding area, the openable floors for removing the mana crystal, and the new bathhouse area. The feeding area is pretty muplete, which is good. They've structed a few dozen artificial s so far, and they expect they'll have just about 80 s done by the end of this year. I'm hoping that will be enough.

  The openable floors are ing along smoothly with only two floors left to strubsp; We've started to notice a small upti ambient mana in the surrounding area where we're growing the crystal now. I suspect it's a sequence of both more mana reag the growing area and the pure size of the crystal at this point. Iingly, it doesn't seem to be ively affeg the growth rate, which makes me wonder as to the exact requirements frowing them again.

  The bathhouse is ing along well also. The uphill side of the city now has quite the sprawling bathworks of both indoor and outdoor pool areas all being fed from the highest pool which is almost pletely sealed off. That is where the giant mana crystal will go. Ohe mana crystal is put there, it'll be sealed off, with the only ways into that reservoir being through the retively narrow pipes that direct water flow out to the various pools, or in from the stream i.

  It's quite majestic so far, and it's only two-thirds plete. They've p out to handle a much rger popution than we currently have as well. I've been told that it should be able to have about 2000 individuals in it at a time, though it'd be somewhat unfortable if they were actually at capacity.

  The crystal's water feed has the ability to drip feed in other pos, should we want to add in boiled wood water for better mana capabsp; Likewise, some of the pools also get more freshwater mixed in from the stream, to lower the dosage of mana applied. I've been told by Shasta that this is an important part of the baths around Par-Tor, as the water close to the crystal be too mana rich for low level individuals, so it o be watered down to not harm them.