High School FFA Ag Mechanics class. Those kids are always cutting and making stuff out of steel. Not advocating a 16 year old make your piece, but those kids can do some awesome stuff. Kid I went to high school with made 3D steel roses.
Do you notice much overshooting with such a high surface area of cooling? I have been researching making my own Cooling Jacket with silicone tubing and a neoprene yoga mat, but the cost was going to be about the same as the CoolZone Jacket.
If you take a 220v 5500 LWD element and use it on 120v (1/4 the power), that lowers the watt density, right? Less watts over same surface area = lower watt density?
You can't actually say that, for certain. Because you would still have people start a brewery and make not good beer WHILE some of the people that listened to the author would have actually made good beer.
If you don't like their beer, don't go there anymore. Sounds like you'll have another...