My main concern is that someday I may not be able to buy incandescent bulbs even though I have a legitimate reason for needing some.
You remind me of a tour I took a few years ago of Boing's Everett Washington 747 plant. http://www.boeing.com/commercial/tours/images/K64532-14_lg.jpg http://www.boeing.com/commercial/tours/images/K63955-20_lg.jpg It is so big that one loses a sense of perspective, then they point out that the ceiling trusses are 30 feet high-- you could build office buildings just in the attick spaces! They claim it is the world's largest building, ~100 acres under one roof, and with no pillars in the center. You could fit all of Disneyland or other small towns inside! The tour guide said they couldn't afford such a facility in most other locations. In the winter, the lighting and equipment keep the inside warm enough without any heating facility, and in the summer, they just open their 5 acre sized garage doors for ventilation. With new efficiency mandates, they might have to add a heating facility. P.S. I'm really astounded that anyone could build what amounts to the equivalent to an office building with utility services, sewage treatent plant, heating ventilating and air conditioning, plumbing, electricity, lighting, furnishings etc. ( 6 million parts total ) all in an air tight pressure vessel to FAA standards, and yet turn them out about one a week! I can hardly imagine the management skills required to pull that off. Hoyt Stearns Scottsdale, Arizona US -----Original Message----- From: Jed Rothwell [mailto:[email protected]] Sent: Wednesday, October 21, 2009 2:15 PM To: [email protected] Subject: RE: [Vo]:Vu1 ESL lighting technology Hoyt A. Stearns Jr. wrote: >Incandescent bulbs also have myriads of other uses where heat is wanted ( >e.g.incubators ,non-linear resistor elements in electronic circuitry . . . I think dedicated resistance heaters would be better for this application. They would last longer and would be less in danger of breaking and spreading broken glass around. One of the advantages of CFL and other non-incandescent lighting is that the bulbs last for a long time. In offices and factories, replacing lights is a major expense, and it gets in the way of production. So bulbs that go for years without having to be replaced are big advantage. As Hoyt says, some specialized uses for incandescent bulbs will likely remain for a long time. Such as in ovens, or for outdoor porch light in very cold places (Siberia). As Arthur Clarke said, once we invent a tool, we never stop using it. Just about everything ever invented is still in use somewhere for some purpose. - Jed
