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Cat Forum / Cat Anecdotes / September 2005How many RPCAers does it take to change a light bulb?
-----BEGIN PGP SIGNED MESSAGE----- How many RPCAers does it take to change a light bulb? (1) to post that their light doesn't work (50) to offer purrs for the OP and the light (1) to tell the OP that the bulb is burned out (20) to tell that person that they're being cruel to the OP (50) to post "troll","killfile" and "PLONK" (1) to post some useless information about light bulbs (5) to thank that person for the useless information (30) to tell the OP that the light bulb is waiting for them at the rainbow bridge. (10) to discuss their recent bout of depression (5) to ask how the other light bulbs are handling the loss (25) to offer purrs for the other light bulbs (1) to offer instructions on changing to bulb (20) to instruct the group to shun the person who offered the instructions" 'cause nobody here wants to see the light." > How many RPCAers does it take to change a light bulb? > > (1) to post that their light doesn't work Usually it's running around 6. > (50) to offer purrs for the OP and the light > (1) to tell the OP that the bulb is burned out I don't understand this. > (20) to tell that person that they're being cruel to the OP It'a running around 10 so far. > (50) to post "troll","killfile" and "PLONK" This is way too high. Around 6-7. > (1) to post some useless information about light bulbs This is me. Did you know that in the middle of the color spectrum you'll find that the human eye is most sensitive? Now I wonder which color is most sensitive for cats? Does anyone know? This is not useless information since a green night light for me may be optimal but sub-optimal for my cat. So if I want to see the cat, but not have the cat see me... > (5) to thank that person for the useless information This is way too low, LOL, ROTLMAO, more like 10,000,000 without exaggeration. > (30) to tell the OP that the light bulb is waiting for them at > the rainbow bridge. This is a touchy subject. You have something against the easter bunny? > (10) to discuss their recent bout of depression I wish more of us would discuss our recent bouts of depression. You have something against us defectives? Not all of us can be such drunkards as yourself. Don't get me wrong. I'm not being judgmental. Just can't afford all that good wine. You're obnoxious but not too unoriginal. I'll bet your really kind, at least to our cats, yes? > This is me. Did you know that in the middle of the color spectrum > you'll find that the human eye is most sensitive? Now I wonder which > color is most sensitive for cats? Does anyone know? This is not useless > information since a green night light for me may be optimal but > sub-optimal for my cat. So if I want to see the cat, but not have the > cat see me... Cats have *far* better vision in low light than humans, so even if you adopt a red bulb (cats apparantly don't see the extreme res end of the visible colour spectrum), your cat will stil be able to see better than you will. However, for psychological purposes, a red bulb as a night light works better than any other wavelength because it is the lowest energy in the visible spectrum and doens't have the psychological "wake up" effect of blue light. If red is too disturbing, try a soft orange lamp. Cheers, Yowie >> This is me. Did you know that in the middle of the color spectrum >> you'll find that the human eye is most sensitive? Now I wonder which [quoted text clipped - 16 lines] > > Yowie And this is actually very useful information. If I wake up at night I want to know what time it is. I'm getting to the age where I don't see so good. But if I put one of those nice lit up clocks with the brightly colored numerals where I can see it, it ends up illuminating the entire room. Now I know there is good science behind making a switch to one with red or orange numbers instead of the bright blue and kind of disturbing one I have now. Jo > And this is actually very useful information. If I wake up at night I want > to know what time it is. I'm getting to the age where I don't see so good. > But if I put one of those nice lit up clocks with the brightly colored > numerals where I can see it, it ends up illuminating the entire room. Now I > know there is good science behind making a switch to one with red or orange > numbers instead of the bright blue and kind of disturbing one I have now. My alarm clock has a handy little button that lights up the dial so you can see what time it is, but it's not lit up all the time. (It's the snooze button at the same time.)  SignatureMarina, Frank, Miranda and Caliban. In loving memory of Nikki. marina (dot) kurten (at) iki (dot) fi Pics at http://uk.pg.photos.yahoo.com/ph/frankiennikki/ and http://community.webshots.com/user/frankiennikki >> This is me. Did you know that in the middle of the color spectrum you'll >> find that the human eye is most sensitive? Now I wonder which color is [quoted text clipped - 16 lines] > > Yowie This reminds me of a story from my childhood. It was around Christmas and my Father put a red globe in the porch light in the spirit of Christmas. Around 9PM the door bell rang. My Mother answered and found four young men who thought the red light indicated a whore house. My brother and I were clinging to her as she assured them it was not. The young men left but one lingered behind. He then handed my Mother $5.00 and said "here, spend this on your kids -- that will be better than what I had planned to do with it." MLB >> How many RPCAers does it take to change a light bulb? >> [quoted text clipped - 40 lines] > You're obnoxious but not too unoriginal. I'll bet your really kind, at > least to our cats, yes? Anyone want to know a lot about light bulbs? I can tell you more than you ever wanted as I used to work for a manufacturer of them for 17 years. They are not actually called light bulbs in the trade, they are called *lamps* Any more anyone? ;-) Tweed > Anyone want to know a lot about light bulbs? I can tell you more than you > ever wanted as I used to work for a manufacturer of them for 17 years. > They are not actually called light bulbs in the trade, they are called > *lamps* > Any more anyone? ;-) Yeah.... what is the alloy used for the filament - tungsten and what else? And is it true that the bulbs are filled with argon? Is it regular glass or heat resistant glass that htey use? How do they manufacture the bulbs so that hte glass is so thin? Are "lamps" specifically designed to burn out at "x" time, or is that just the way it is? Yowie >> Anyone want to know a lot about light bulbs? I can tell you more than >> you ever wanted as I used to work for a manufacturer of them for 17 [quoted text clipped - 3 lines] > > Yeah.... what is the alloy used for the filament - tungsten and what else? Bear in mind that I left the industry in 1989. At that time we used tungsten. > And is it true that the bulbs are filled with argon? Yes, or at least some are. Is it regular glass or > heat resistant glass that htey use? How do they manufacture the bulbs so > that hte glass is so thin? I can't answer this, I never saw or learnt about them doing the "glass bit" sorry. >Are "lamps" specifically designed to burn out at > "x" time, or is that just the way it is? They are not "designed" to burn out at x hours in order to make everyone need to buy more lamps, if that's what you mean! It's just the average life of a cheapie household lamp, and I can buy them here for 50/60p is 1,000 hours. At the factory I worked at, which employed more than 2,000 people, we made the more unusual lamps. Neon, krypton, mercury vapour lamps, photographic, film studio (megabucks to buy, these last two) sodium, fluorescent, halogen. etc etc. Household lamps were made at the factory in Merthyr Tydfil. I shall now shut up as I am in danger of getting to be an anorak about this.. <g> Tweed > Yowie > >> Anyone want to know a lot about light bulbs? I can tell you more than > >> you ever wanted as I used to work for a manufacturer of them for 17 [quoted text clipped - 20 lines] > bit" > sorry. I did have some background into the manufacture of now-generally-obsolete vacuum tubes. The most difficult problem in the glass manufacture there was matching the coefficient of expansion of the glass with the wires going through it. If the wire expands faster than the glass, the glass will break. If the glass expands faster, the vacuum (or gas in some cases) will leak. > I shall now shut up as I am in danger of getting to be an anorak about > this.. <g> You'd be in good company, I am very definatley an anorak about lots of stuff. :-) Yowie >> I shall now shut up as I am in danger of getting to be an anorak >> about this.. <g> [quoted text clipped - 3 lines] > > Yowie What's an anorak? When I was a kid growing up in Germany, it was a warm winter jacket. Like a parka or a ski jacket. I had no clue that it's a word in English too! -- Britta "There is no snooze button on a cat who wants breakfast." -- Unknown Check out pictures of Vino at: http://photos.yahoo.com/badwilson click on the Vino album >>>I shall now shut up as I am in danger of getting to be an anorak >>>about this.. <g> [quoted text clipped - 15 lines] > Check out pictures of Vino at: > http://photos.yahoo.com/badwilson click on the Vino album An anorak IS that kind of hooded jacket in English too, but it also means a sort of nerdy, geeky person who supposedly wears one. Helen Wheels, not ashamed to be an anorak even when I have my nice cashmere coat on. >>>>I shall now shut up as I am in danger of getting to be an anorak >>>>about this.. <g> [quoted text clipped - 20 lines] >Helen Wheels, not ashamed to be an anorak even when I have my nice >cashmere coat on. As I understand it, the slang usage of "anorak" to mean "nerd" originally applied to train-spotters, people who would stand near railroad tracks for hours in order to keep a list of all the different trains that would go by. In chilly weather, they were likely to be wearing anoraks. SignatureJohn F. Eldredge -- john@jfeldredge.com PGP key available from http://pgp.mit.edu "Reserve your right to think, for even to think wrongly is better than not to think at all." -- Hypatia of Alexandria > What's an anorak? When I was a kid growing up in Germany, it was a > warm winter jacket. Like a parka or a ski jacket. I had no clue that > it's a word in English too! It's a word in Norwegian, too. In fact, it's a word we have taken from inuit (i.e. escimoes). Hans > > What's an anorak? When I was a kid growing up in Germany, it was a > > warm winter jacket. Like a parka or a ski jacket. I had no clue that [quoted text clipped - 4 lines] > > Hans You know I am so happy you all are having this discussion. I have a chance to buy an anorak, a small nylon-type I can roll up in a pants pocket. That also has the name of my home town on it. In case I get lost :( By the way, the Inuit are the Eskimoes, mostly in Alaska, so they are by definition Americans, USA, or are some Canadians? What a headache trying to say something simple and accurate. Oh no, they are also in Greenland Greenland and Chukotka, Russia. In Greenland, is that part of Norway or Denmark? Okay, Denmark or Damark granted independence in 1979. And another blooper on my part: "They prefer the name Inuit, which means 'the people' or 'real people' and comes from a language called Inuit-Inupiaq. The singular of Inuit is Inuk, which means 'person'." I quit. Everytime I try to say anything I wind up offending somebody. That's one drawback of trying to be truthful. Small doses apparently is best. But moderation ain't my thing. Hans Schrøder wrote: >By the way, the Inuit are the Eskimoes, mostly in Alaska, so they are >by definition Americans, USA, or are some Canadians? What a headache >trying to say something simple and accurate. Oh no, they are also in >Greenland Greenland and Chukotka, Russia. In Greenland, is that part of >Norway or Denmark? Okay, Denmark or Damark granted independence in >1979. And another blooper on my part: They also live in Canada by "Yowie" <yowie9644.DIESPAMDIE@yahoo.com.au> Sep 4, 2005 at 09:03 AM "Christina Websell" <spamfree@tinawebsell.wanadoo.co.uk> wrote in message news:3nu0efF337e0U1@individual.net... > I shall now shut up as I am in danger of getting to be an anorak about > this.. <g> You'd be in good company, I am very definatley an anorak about lots of stuff. :-) Yowie ====================================== Even though I'm a USAian I know what an Anorak is. I watch BBSAmerica and used to watch the BBC version of Weakest Link. Except for Sports I did pretty good. Its easier than Jeopardy. I'm an Anorak when it comes to history. Suz >>> Anyone want to know a lot about light bulbs? I can tell you more than >>> you ever wanted as I used to work for a manufacturer of them for 17 [quoted text clipped - 7 lines] > Bear in mind that I left the industry in 1989. At that time we used > tungsten. <anorak warning> I asked because we are researching the use of Infra-red lamps to bake our paint at work (I'm a paint chemist). Those Infrared lamps put out a *huge* amount of energy (we had to get a seperate power supply to our building just for the IR oven we're using) and wasn't sure that just plain tungsten would take the 3000 Kelvin these lights are said to work out. So I smashed up one of hte lamps that had been broken in shipping and got the filament analysed. I can't reveal what the alloy was (confidentiality and all that) but it definately asn't *just* tungsten. The lamps also emit across the spectrum (the centre being at a particular wavelength in th infrared), so much so that they also emit a fair amount of UV radiation. So to use our *infra red* oven, we have to take special care of the UV rays - with almost black goggles, full length clothing, and - believe it or not - sunscreen! The thing lights up the lab incredibly well, and even standing a few metres away you can get quite warm. It is a spectacular peice of engineering. </anorak stuff> Yowie > <anorak warning> > I asked because we are researching the use of Infra-red lamps to bake our [quoted text clipped - 15 lines] > </anorak stuff> > Yowie <universe warning for cats' group> Let's see, by 3000 Kelvin, that's around 4940 Fahrenheit? Hmmm. That's also the typical color spectrum output of an incandescent bulb. Those two things are identical which I did not realize. Dummy me. The color rating for lightbulbs is often 3000 K which is really the heat rating of something burning at 4940 Fahrenheit [2727 Centigrade or Celsius]. That also happens to be the temperature of the universe after the Big Bang. For those who were busy that day, that's the day the universe was, uh, formed or created or just popped up. I'm not kidding. It's a bit cooler now. Around 2.735 Kelvin. Actually, it's way too cold now. This may seem OT but to understand felines we really have to know how we all got here. Most of you say there is a mothership. But what if it's a fathership? Or an auntship? Or uncleship? Or catship? Or kitship? Ordinary bulbs work at 3000 Kelvin, and most of their spectrum is already in the infrared range of 965 nanometers. And they are leaking into the ultraviolet range which is starts 400 nanometers. That I did not know so I'll have to stop staring at light bulbs, so thanks! Our eyeglasses should have 400 UV coating to prevent or slow cataracts from too much UV exposure, which is a big problem with global warming, especially in some countries, like Australia now? Why this is considered a spectacular piece of engineering? Let's see if I can figure out. Is it because it uses, oh, 100 bulbs at 2500 watts apiece? That's a 2.5 kilowatts per bulb and would demand 250 kilowatt service, which is a lot of energy, especially on startup! I see your point now. All that electricity would demand wiring that does not melt and thinking on how heat problems and various safeguards? Ordinary bulbs are already at 3000 Kelvin but these bulbs are optimized to produce even more light in the infrared range? So their tungsten filament has something special to produce more infrared or maybe something to prevent getting burned up too quickly or both? Good thing you read the safety manual for this oven. I'm going to be wary or at least a little more cognizant of infrared heating lamps in the future since they also radiate invisible ultraviolet energy. Thanks for the OT discussion. </universe warning for cats' group> > <treeline12345@yahoo.com> wrote in message > > This is me. Did you know that in the middle of the color spectrum [quoted text clipped - 3 lines] > > sub-optimal for my cat. So if I want to see the cat, but not have the > > cat see me... > Anyone want to know a lot about light bulbs? I can tell you more than you > ever wanted as I used to work for a manufacturer of them for 17 years. They > are not actually called light bulbs in the trade, they are called *lamps* > Any more anyone? ;-) > Tweed Oh great. The graphs I see are usually typical Bell-curve with the sweet spot for human eyeballs in the center of the 500 nanometer range, green-yellow and rapid fall off to either the reds at one end, or the blues at the other end before disappearing iinto invisible light spectrum. I am amazed at how well a night-light that is greenish-yellow will illuminate a dark room. I suspect that the jarring effect of the blue is really not due to the color as much as the type of light and the increased output of that usually fluorescent type of bulb? If all the outputs are kept equal, blue and red are quite dull and hard to see anything outside of themselves, like the surrounding parts of the room. In regards to cats, Yowie, I wonder if it's like smells. For example, supposedly, cats have sensors to only about 500 smells but they can smell that smell way better than humans can, who have about 2000 smell sensors. We are more fussy about our food apparently but the feline can smell food way far away and is not so gourmet inclined, except those who are having fun teasing their humans. I also wonder if cats see better at red and at infrared which humans cannot do. I have not idea if this is true. I doubt it. I know they can see light better, but not sure how that translates into colors. The same was for hawks I remember. A hawk, like a peregrine falcon, could discern 160 lines in a grating, arugendo, 1 centimeter whereas the human could not. But a human could detect an object, not moving, by color, whereas the hawk needed movement to see that object. BUT, the hawk could detect movement a mile away whereas no human could at that distance. Ah, brings back such wonder information. Yes, I actually read a scientific article on how the peregrine falcons can see. They are the ones that do a little 10,000 mile trip each year, except for a few females, how hang out in Miami beach to see what they can scare up. I'm not kidding you. They put transmitters and one female wintered in Miami instead of going on to Brazil, the hussy. Actually, yes...I was wondering about those full-spectrum bulbs. What is different about how they are made? Are the ones you can buy at Home Depot the same as they use in light boxes. Those are expensive, and I've always wondered if the consumer is paying all that just for the box part. Just curious! PatM > Actually, yes...I was wondering about those full-spectrum bulbs. What > is different about how they are made? Are the ones you can buy at Home [quoted text clipped - 3 lines] > > PatM Depends, depends. Full spectrum can be helpful for SAD, Seasonal Adjusted? Depression supposedly. Also it helps plants to grow. Have to be careful and make sure it's full spectrum and not any ultraviolet leaking out which could, ah, age your eyeballs prematurely. So here is where I don't think I would skimp unless I really, really knew the manufacturer. There are savings though. Some big companies make Grow bulbs for plants that are kind of full spectrum for practical purposes. I have seen full-spectrum flourescents, 4-foot bulbs for an office, really truly expensive but they work. Don't get that office feeling you get with ordinary bulbs which is kind of industrial and artificial. >> Actually, yes...I was wondering about those full-spectrum bulbs. What >> is different about how they are made? Are the ones you can buy at Home [quoted text clipped - 17 lines] > really truly expensive but they work. Don't get that office feeling you > get with ordinary bulbs which is kind of industrial and artificial. That was one of the real benefits of owning my own business. Small as it might have been. The florescent bulbs I used cost me a fortune and the electrical place guy thought I was nuts, but it was so much better working with good lighting. When you spend half your life in front of paper ledgers and the other half in front of a computer you have to do whatever you can for your eyes. Jo > Actually, yes...I was wondering about those full-spectrum bulbs. What > is different about how they are made? Are the ones you can buy at Home [quoted text clipped - 3 lines] > > PatM I left the lighting industry in 1987. Seasonal Affective Disorder had not been invented then! We did grow-lites for plants, which were fairly full spectrum, if left on 24/7 or at least 16/24 designed to grow plants in a loft with no light, or something like. Maybe they would work? I don't really know. I still keep in touch with a couple of my colleagues from there on an irregular 4 times a year- ish basis, and I was extremely touched to get a bag of "everything you might need to go into hospital" from a former colleague. Nightshirt, slippers, flannel, hand towel, shampoo, soap, toothpaste, toothbrush, toiletry bag. I was so touched, I had a few tears. Tweed > >> How many RPCAers does it take to change a light bulb? > >> [quoted text clipped - 47 lines] > > Tweed <waves hand wildly> Ms. Tweed!! Pick me!! Pick me!! 1. Is it true that if you never turn a light bulb off, it will never burn out. 2. Is it true that those light bulbs that claim to last 10 years, really do last 10 years? If so, then why don't they make all of them like that? On Fri 02 Sep 2005 09:05:52p, wrote in rec.pets.cats.anecdotes (news:1125709552.910832.85560@g49g2000cwa.googlegroups.com): > 1. Is it true that if you never turn a light bulb off, it will > never burn out. > 2. Is it true that those light bulbs that claim to last 10 > years, really do last 10 years? If so, then why don't they make > all of them like that? I switched to fluorescent bulbs for the lamps I use the most. One in my living room is never shut off. It's been burning now for 3 years. Only been off when power is out. SignatureCheryl "The clever cat eats cheese and breathes down rat holes with baited breath." - W.C. Fields > On Fri 02 Sep 2005 09:05:52p, wrote in rec.pets.cats.anecdotes > (news:1125709552.910832.85560@g49g2000cwa.googlegroups.com): [quoted text clipped - 8 lines] > my living room is never shut off. It's been burning now for 3 years. > Only been off when power is out. Then technically it has been shut off This is off topic, please read your FAQ (Sherry can e-mail it to you) and add OT to the subject line :) > > >> How many RPCAers does it take to change a light bulb? > > >> [quoted text clipped - 55 lines] > really do last 10 years? If so, then why don't they make all of them > like that? > This is off topic, please read your FAQ (Sherry can e-mail it to you) > and add OT to the subject line :)/// Ummmm, you do know that Yowie actually WROTE the FAQ, don't you? See 6.1.2 of the FAQ below... 6.1.5 Darn it, half these posts aren't even about cats! That's what happens when friends start to have a conversation - you can start on one topic, and the conversation drifts so far that within 10 minutes you are talking about something else entirely and you didn't even notice the change. Occasionally people notice and put an [OT] in the subject line to signify that the post is Off Topic (ie, not about cats), but not always. Just think of this group as a bunch of people that became friends because of their cats. It makes it easier to understand the style and content of the posts, particularly the ones that are technically off topic. Would you tell one of your friends to shut up if he just announced his engagement? Helen M > Occasionally people notice and put an [OT] in the subject line to > signify that the post is Off Topic (ie, not about cats), but not always. [quoted text clipped - 4 lines] > announced his engagement? > Helen M Not as long as the engagement was to a cat ;) umm.... That would probably need to be posted under an 'Alternative Lifstyle' NG.... And if it did'nt work out, who gets the...er...'kids'? Mathew, Chablis & Muscat > umm.... That would probably need to be posted under an 'Alternative > Lifstyle' NG.... And if it did'nt work out, who gets > the...er...'kids'? > > Mathew, Chablis & Muscat You meant the _kits_, right? Miaow. Give it a rest, Trish please. Tweed > This is off topic, please read your FAQ (Sherry can e-mail it to you) > and add OT to the subject line :) [quoted text clipped - 68 lines] >> really do last 10 years? If so, then why don't they make all of them >> like that? > Give it a rest, Trish please. > > Tweed Why don't you just killfile her, as others have done? SignatureAdrian (Owned by Snoopy & Bagheera) A house is not a home, without a cat. http://community.webshots.com/user/clowderuk >> Give it a rest, Trish please. >> >> Tweed > > Why don't you just killfile her, as others have done? Because now and again she says things that make sense. Tweed >>>Give it a rest, Trish please. >>> [quoted text clipped - 5 lines] > > Tweed When I "killfile" someone, I make the filter mark their posts read, not delete them. That way I won't stumble upon garbage by accident, but can, if I want to, read what they've posted. SignatureChristine in Vantaa, Finland christal63 (at) gmail (dot) com photos: http://photos.yahoo.com/christal63 photos: http://community.webshots.com/user/chkr63 > 1. Is it true that if you never turn a light bulb off, it will never > burn out. > 2. Is it true that those light bulbs that claim to last 10 years, > really do last 10 years? If so, then why don't they make all of them > like that? 1. I have heard about a bulb that has been burning constantly since 1930's. It was an article about it in a local newspaper in Norway some years ago. 2. When I was a child, my father told me (he was an electrical engineer) that the bulb factory LUMA in Sweden managed to produce an ever-lasting bulb. They never started a mass production of it, because who will undermine their own business in such a stupid manner? The need for changing bulbs from time to time is what these manufacturers live from! Hans > > 1. Is it true that if you never turn a light bulb off, it will never > > burn out. > > 2. Is it true that those light bulbs that claim to last 10 years, > > really do last 10 years? If so, then why don't they make all of them > > like that? > 1. I have heard about a bulb that has been burning constantly since 1930's. > It was an article about it in a local newspaper in Norway some years ago. [quoted text clipped - 5 lines] > > Hans That's the truth. There was a company that made pumps for swimming pools. Brass pumps. When a pump goes bad, it's expensive, drain the pool and so on. The company went out of business because their pumps never went bad and never needed maintenance. Planned obsolesence used to be the keyword for the day. With the cost of electricity, it's getting much cheaper to change the bulb and just concentrate on the electricity which is getting expensive. I'm starting to look into solar panels or a little wind generator or maybe a cat treadmill so she earns her daily light! Now that I like and with compact fluorescents, the amount of electricity is not that much. And less coal being burned and less oil and less nuclear power waste. So there. > 1. I have heard about a bulb that has been burning constantly since > 1930's. It was an article about it in a local newspaper in Norway some > years ago. Further to that, in the 1970's I read that a bulb in a Fire Station (Firehouse?) in San Francisco had been burning continuously since either 1906 or 1910 (don't recall which). Does anyone know if it's still going, or how old it was when it expired? Purrs Gordon & the FF >> Anyone want to know a lot about light bulbs? I can tell you more than >> you [quoted text clipped - 10 lines] > 1. Is it true that if you never turn a light bulb off, it will never > burn out. No, not exactly! I know why the rumour has got about though, it's because household lamps often go "ping" and die at the moment you switch them on. We called this "failed on switching." It's to do with how delicate the filament is. Frequent switching on/off will shorten a lamp's life because it stresses the filament. OTOH, ordinary run of the mill cheap "light bulbs" are/or were at that time designed to last 1,000 hours, so if you leave them on continuously they will reach their end of their life more quickly. So if you pop upstairs to the bathroom, don't bother to switch off your downstairs light and put it back on a few minutes later ;-) > 2. Is it true that those light bulbs that claim to last 10 years, > really do last 10 years? Yes, they do. >If so, then why don't they make all of them > like that? Because they are less attractive to look at and cost more to buy. Another slight disadvantage is that this type do not always illuminate instantly but increase light over a minute or two. I wouldn't recommend their use, for example, on the stairs. Tweed > Anyone want to know a lot about light bulbs? I can tell you more than you > ever wanted as I used to work for a manufacturer of them for 17 years. They > are not actually called light bulbs in the trade, they are called *lamps* > Any more anyone? ;-) I was told when studying lighting for the theater that anything over $5 was called a lamp. Now my question, which is better, halogen or fluorescent lamps? I have found that I get depressed if I don't see the sun for several days after working in an office, but I never got depressed or "droopy" after working all day and most nights in a darkened theater while working with the lighting system. Diane > Now my question, which is better, halogen or fluorescent lamps? I have > found that I get depressed if I don't see the sun for several days after [quoted text clipped - 3 lines] > > Diane Halogens are expensive, very hot, expensive but full spectrum, and oh, expensive to operate. I usually have my halogens around 150 to 300 watts, which is what, at my rates which are also, expensive, depending, around $.05 an hour or $1.20 a day. Now I can get the new compact fluorescents working around 1/10th of that cost. And if I get warm fluorescents, depending on their Kelvin or K rating, they're pretty good. I can leave them on and my furry buddy likes and approves of them. Oh, halogen can be a little hot and dangerous I think around furry critters. The flourescents are cheap now, cheap to operate, and cool so reducing A/C, elec, and all-around energy costs. expensive, very hot, expensive but full spectrum, and oh, > Oh, halogen can be a little hot and dangerous I think around furry > critters. The flourescents are cheap now, cheap to operate, and cool so > reducing A/C, elec, and all-around energy costs. Oh yes, I forgot about the hot part. I guess I must not be finding the full spectrum fluorescents. I know that I have problems with the flicker rate some times. I can't turn on the light over my workspace, because the flicker rate is different that the ones over my cubical. Gives me a headache. Oh well. Thanks for the response. Diane > <treeline12345@yahoo.com> wrote in message > > Oh, halogen can be a little hot and dangerous I think around furry > > critters. The flourescents are cheap now, cheap to operate, and cool so > > reducing A/C, elec, and all-around energy costs. > Oh yes, I forgot about the hot part. I guess I must not be finding the full > spectrum fluorescents. I know that I have problems with the flicker rate [quoted text clipped - 5 lines] > > Diane There are really two very different types of lights here. One is the screw in compact fluorescent that are not quite inexpensive. However, there are widely differing specs and I don't now if you can easily find a full-spectrum. I do know that the spiral types are not as efficient as the simpler straight tube types. And they might flicker more. The better made ones are quite efficient and don't flicker and reach full power in a few minutes. Full spectrum fluorescents used to be the old-fashioned 48 inch tubes of even decades ago. Some had a strange twist made into their bulbs. Extremely expensive. Hold on, let me do a quick internet search for you. YES they made them. Key words: FULL SPECTRUM COMPACT FLUORESCENTS. But still about 10 times as expensive as regular ones. Cheap compact fluorescents are now a few dollars each. The full spectrum are about $21 each at least in a quick internet search. The seem to make many compacts in a spiral mode. I would probably look first for non-spirals but the spirals are good enough. If not, look for little straight tubes. I guess the spirals can be made smaller so fit easily into existing lamps and so forth. But you lose efficiencies since the light waves have to do tricks. When I last looked into this from an engineering or scientific point of view, it could be almost half but that's still good enough as long as the light stabilizes and is pleasant for you. If not, I would aim for the simple straight little tubes... But here the KISS concept applies. Simple is good. If you already have 4 foot workshop or office lights, then that's a different story but probably still the same factor. Expect 10 times the cost for full spectrum. But these lights do last for thousands of hours. That's really no joke unless they are poorly made. All the flourescents should last for thousands of hours and use a fraction of the electricity. Incandescents are like SUVs and Hummers now. I use fluorescents, both compacts and the 4-foot office kind almost exclusively now. In fact, I'm going to ditch my cheapies I bought at Lowe's or Home Depot and see if I can pick up some full spectrums. I'm glad we had this discussion. And for that Trishy comment on OT, the cat's glad too. >> <treeline12345@yahoo.com> wrote in message >> > Oh, halogen can be a little hot and dangerous I think around furry [quoted text clipped - 54 lines] > Depot and see if I can pick up some full spectrums. I'm glad we had > this discussion. And for that Trishy comment on OT, the cat's glad too. Thousands is putting it mildly. My office was opened for fifteen years. I bought full spectrum florescent tubes when it opened. The average work year is 2000 hours. And I never had to replace them. It kind of puts the roughly $20 per tube cost into perspective. Jo > Thousands is putting it mildly. My office was opened for fifteen years. I > bought full spectrum florescent tubes when it opened. The average work year > is 2000 hours. And I never had to replace them. It kind of puts the > roughly $20 per tube cost into perspective. > > Jo So that's 30,000 hours, at least, on the bulbs you purchased. I was just looking for ratings and 30,000 is the most I have found for the 4-foot bulbs so far. The best for full spectrum is around 24,000 hours. Not bad at all. > In fact, I'm going to ditch my cheapies I bought at Lowe's or Home > Depot and see if I can pick up some full spectrums. I'm glad we had > this discussion. And for that Trishy comment on OT, the cat's glad too. I'm glad we had the discussion as well. It ahs been 15 years since I worked in theatrical lighting, and I knew there were advances. Thanks a lot. You mean cats don't like halogen or fluorescents? I of course was asking, to make sure the furry masters were happy with the lighting in the house. ;) Diane > are > expensive, very hot, expensive but full spectrum, and oh, [quoted text clipped - 12 lines] > > Diane It should not flicker so that you can notice it. You may need a new starter for it, that may be failing. Tweed > It should not flicker so that you can notice it. You may need a new starter > for it, that may be failing. Most people in the office don't notice it. But as a stage lighting designer, I was trained to watch for the smallest difference in the light so I could either head off trouble, or design around it. The people at the office think I'm nuts. There are a few who are also sensitive to it. Street lights that are going out drive me absolutely batty. Diane > -----BEGIN PGP SIGNED MESSAGE----- > [quoted text clipped - 37 lines] > =gwwM > -----END PGP SIGNATURE----- You forgot two (1) know it all to say she has had that experience before and then bore us to tears with it (1) kissass to excitedly answer the know it all exclaiming what a great experience it must have been >> -----BEGIN PGP SIGNED MESSAGE----- >> [quoted text clipped - 45 lines] > (1) kissass to excitedly answer the know it all exclaiming what a great > experience it must have been PLONK > >> -----BEGIN PGP SIGNED MESSAGE----- > >> [quoted text clipped - 47 lines] > > PLONK FTR Christine, the two additions I made were not in reference to you, I had written it before you explained about lightbulbs. If you took it to be about you, then no it wasn't, I've never seen you explain in great detail often, it was meant for a few people here who take any opportunity to drone on and on about topics that are already beaten to death. I have no idea why I'm explaining myself, other than to correct what I believe was a misunderstanding. |
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