> > On Feb 27, 2008, at 11:52 PM, Rich Satterlee wrote: > > (long, but bear with me) > > This is an actual Engineering lecture in Thermodyamics. I can > testify to it > because I was there. It was an undergraduate lecture and under the EE > catalog I was required to take thermodynamics. > > The professor at Fresno State (more formally California State > University, > Fresno) our professor for this class was also an HVAC consultant. > This was > termed "Professor Bevel's Chicken Shit Lecture" and was part of many > semester classes at Fresno State. > > One of his clients was Foster Farms Chickens (a big retail label in > California). > > Anyway, seems like Foster Farms had a problem with their chickens. > > When the temperature in the chicken coops got to hot the chicken > shit used > to generate ammonia gas. That wasn't so bad, but the ammonia gas > used to > etch the cornias of the chickens and then they would go blind and > not find > the food to eat and not gain weight. This was not so good for the > chickens > and especially not good for Foster Farms. > > As a reference to the problem (one of many, I'm sure) is: > http://edis.ifas.ufl.edu/PS031 > > It's amazing what you can find on the internet, but I digress..... > > The professor was called in as a paid consultant. Well, he found that > putting a sprinkler system on top of the chicken coops would wet > down the > tops of the roof of the chicken houses and then the water would > evaporate, > cool down the chicken house, the temperature would not be high > enough for > the chicken shit to generate excessive ammonia gas, the cornias of the > chickens eyes wouldn't get etched, they wouldn't go blind, they > could find > their food and gain weight. This made the chickens very happy. It > also > made Foster Farms very happy as well. So the professor billed > Foster Farms > (he tried billing the chickens, but they wouldn't pay). > And everybody was happy. > > Well, that's not the real part of the story. That was just the setup. > > After a couple of years, the folks at Foster Farms noticed that > they didn't > have to use as much water as they did originally to keep the > chicken coops > cool. So they called him up and asked him why. Well, turns out the > water in the Fresno area (in fact most of the southern San Joaquin > valley > is pretty alkaline, which was sprayed on the roofs of the chicken > coops > (remember the chicken coops. They hold the chickens inside). The > alkali > of the water turned the roofs of the chicken coops white, which the > white > reflected more heat, and hence, they didn't have to use as much > water with > the white roofs. > > Now, here's the kicker. > > My instructor then billed Foster Farms *AGAIN* > > I learned alot about engineering from that class. Maybe not too much > about thermodynamics, but a whole lot of engineering......... > > Cheers, > > Rich S. Sounds like you learned a lot about chicken beaks or bills or billing or something. cc > -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist