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Re: For physics class?From: jworrall@alaska.netSun Jul 27 14:09:21 2008
That would depend on the cost of electricity. Here in Fairbanks Alaska we are dealing with a similar problem: the cost of fuel oil to heat our homes has become very high. People are dealing with the question: should I install a new and hopefully more efficient oil burner furnace? (Electricity is much more expensive for home heating, and we do not yet have gas). The cost of a new furnace/boiler is said to be about $8000.00 How long would it take to get a payback? I have decided against it because the efficiency of my furnace, as measured by the oil burner chap, is good. One does not know how high the price of oil will go, and one does not know how cold the next few winters will be. I have already added much more insulation to my walls and roof, and changed out most of the windows for triple pane, argon filled windows. And I doubt any oil burner chap could guarantee me that my new furnace would use less oil than my present furnace. Allen From: DoctorJoe@aol.com Sent: Sunday, July 27, 2008 9:43 AM To: Multiple recipients of list ULTRASOUND Subject: Re: For physics class? In a message dated 7/27/08 11:46:33 AM, jworrall@alaska.net writes: Yes, that is interesting, and probably feasible, maybe even for real? My question would be: Are the crystals in the floor and the construction of the appropriate structure/mechanism prohibitively expensive to generate the power that would result? Joe P.
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