I loved figuring out how things worked when I was a kid. No one in my family tree had ever gone to college so we really did not consider it more than just a dream. After high school I had a good union job in the local factory. On midnights I would travel around the plant and see opportunities...
if you decide to go with the coil in a fridge you may want to look at the U S Plastics web site, or a similar provider, as they have coils of tubing. their may be a material that is ok for the fish and comes pre-coiled in a size that will fit neatly in the fridge.
I took the FE last year after graduating in 2000. I used this web site to study and passed the first time; http://www.eitexam.com/ On another note, I later purchased the Kaplan study guide for ChemE PE. Big mistake, being the third edition i was surprised to find a typo on nearly every page...
We have developed a method to thaw frozen blocks (-30C) of biological material in a horizontal mixer. The material is shear and thermal sensitive so horizontal mixing allows us to drive the blocks under the liquid level with little effort, our old veritcal system was like ice tea with the...