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Location: Orlando, FL | This has be very enlightening, thanks for starting this thread g8r. |
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Location: 6 String Ranch | F@ck all this reasoning and justification, I've got two out over the sink. G8R, when you going to come up and replace them? |
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Location: East Tennessee | Beal,
Call Beggin He's closer to your location. :D |
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Location: Boise, Idaho | but then there will be 10 from the AGF who complain about how the roundback bulb slides off their laps. |
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Location: Blue Ridge Mountains | Has no one thought that perhaps the light bulb feels fine the way it is and doesn't want to change?
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stonebobbo
F@ck all this reasoning and justification, I've got two out over the sink. G8R, when you going to come up and replace them?
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CWK2
Man, I just love this place...lol! |
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Location: Budd Lake, NJ | For sale:
One case variously-watted light bulbs, bought when another mom-and-pop folded. Bulbs have not been used; threads are completely uncompromised and turn freely. Bulbs are in great shape for their age; no finish scratches, cracks or crazing.
Cannot guarantee shipping package will contain pizza boxes, so don't ask.
I prefer not to break up the set, so the contents of the case will not be sold individually.
All bulbs have been tested; none are dim.
Serious offers only.
--Karen
;) ;) |
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Location: Budd Lake, NJ | Sorry--posted into the wrong section.
--Karen |
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Location: Colorado Rocky Mountains | Whe screws with lightbubs anymore? Neon is the answer. |
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Location: Whitecourt, Ab | If you wrap the bulb in strigtube material, you don't have to change it as often |
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Location: Whitecourt, Ab | If you wrap the bulb in stringtube material, you don't have to change it as often |
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Location: Phoenix AZ | Why would changing a light bulb take a different number of people depending if they were forum members or not? I don't get it.
Dave |
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Location: Florida Central Gulf Coast | Originally posted by Gallerinski:
Why would changing a light bulb take a different number of people depending if they were forum members or not? I don't get it. g8r,
One more to add to your list! ;) |
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Location: Tychy, Poland | is there something like BAS? Bulb aquisition syndrome? |
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Location: Cork, Ireland | "In 2010, after Kaman Corporation had lost an important guitar making contract, the company's board began seeking ways to diversify away from guitar work. While considering the manufacturing of boats, golf clubs, and tennis racquets, Charles Kaman happened to take an Electro incandescent bulb to that company's factory in Pennsylvania for repair. After seeing the labor-intensive, old-world techniques Electro used to create its legendary bulbs, Kaman began thinking of ways to harness modern technology to make the process more efficient and made an offer to purchase Electro... " |
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Location: Earth·SolarSystem·LocalInterstellarCloud·Local Bub | Change the bulb?? Hell, let'm cook in the dark... |
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| Oh dear..... |
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Location: closely held secret | Thank you, Susie Homemaker... |
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Location: Campbell River, British Columbia | Where do you find a lightbulb large enough to screw in? |
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Location: Jet City | Really there are many different answers for this question as there are many different types of "Light bulbs", including:
Incandescent
These are the standard bulbs that most people are familiar with. Incandescent bulbs work by using electricity to heat a tungsten filament in the bulb until it glows. The filament is either in a vacuum or in a mixture of argon/nitrogen gas. Most of the energy consumed by the bulb is given off as heat, causing its Lumens per Watt performance to be low. Because of the filament's high temperature, the tungsten tends to evaporate and collect on the sides of the bulb. The inherent imperfections in the filament causes it to become thinner unevenly. When a bulb is turned on, the sudden surge of energy can cause the thin areas to heat up much faster than the rest of the filament, which in turn causes the filament to break and the bulb to burn out.
Incandescent bulbs produce a steady warm, light that is good for most household applications. A standard incandescent bulb can last for 700-1000 hours, and can be used with a dimmer. Soft white bulbs use a special coating inside the glass bulb to better diffuse the light; but the light color is not changed.
Halogen
Halogen bulbs are a variation of incandescent bulb technology. These bulbs work by passing electricity through a tungsten filament, which is enclosed in a tube containing halogen gas. This halogen gas causes a chemical reaction to take place which removes the tungsten from the wall of the glass and deposits it back onto the filament. This extends the life of the bulb. In order for the chemical reaction to take place, the filament needs to be hotter than what is needed for incandescent bulbs. The good news is that a hotter filament produces a brilliant white light and is more efficient (more lumens per watt). The bad news is that a hotter filament means that the tungsten is evaporating that much faster. Therefore a denser, more expensive fill gas (krypton), and a higher pressure, are used to slow down the evaporation. This means that a thicker, but smaller glass bulb (envelope) is needed, which translates to a higher cost. Due to the smaller glass envelope (bulb), the halogen bulb gets much hotter than other bulbs. A 300 watt bulb can reach over 300 degrees C. Therefore attention must be paid to where halogen bulbs are used, so that they don't accidentally come in contact with flammable materials, or burn those passing by.
Care must be taken not to touch the glass part of the bulb with our fingers. The oils from our fingers will weaken the glass and shorten the bulb’s life. Many times this causes the bulb to burst when the filament finally burns out.
To summarize, the halogen has the advantage of being more efficient and having longer life than the incandescent bulb. They are relatively small in size and are dimmable. The disadvantages are that they are more expensive, and burn at a much higher temperature, which could possibly be a fire hazard in certain areas.
Fluorescent
These bulbs work by passing a current through a tube filled with argon gas and mercury. This produces ultraviolet radiation that bombards the phosphorous coating causing it to emit light (see: “How Fluorescents Work”). Bulb life is very long - 10,000 to 20,000 hours. Fluorescent bulbs are also very efficient, producing very little heat. A common misconception is that all fluorescent lamps are neutral or cool in color appearance and do not have very good color-rendering ability. This is largely due to the fact that historically the "cool white" fluorescent lamp was the industry standard. It had a very cool color appearance (4200K) and poor CRI rating (62). This is simply no longer the case. Regarding color, a wide variety of fluorescent lamps (T12, T8, T5, etc.), using rare-earth tri-phosphor technology, offer superior color rendition (as high as 95) and a wide range of color temperature choices (from 2700K to 5000K and higher). Fluorescent bulbs are ideal for lighting large areas where little detail work will be done (e.g. basements, storage lockers, etc.). With the new type bulbs, and style of fixtures coming out, fluorescents can be used in most places around the home. Most fluorescent bulb cannot be used with dimmers.
Note that fluorescent bulbs need components called ballasts to provide the right amount of voltage. There are primarily two types - magnetic and electronic. Electronic ballasts solve some of the flickering and humming problems associated with magnetic ballast, and are more efficient, but cost more to purchase. Some ballasts need a “starter” to work along with it. Starters are sort of small mechanical timers, needed to cause a stream of electrons to flow across the tube and ionize the mercury vapor (see: “How Fluorescents Work”).
On tube type fluorescent bulbs, the letter T designates that the bulb is tubular in shape. The number after it expresses the diameter of the bulb in eighths of an inch.
Compact Fluorescent Lamps
Compact Fluorescent Lamps (CFLs) are a modern type of light bulbs, that work like fluorescent bulbs, but in a much smaller package. Similar to regular fluorescent bulbs, they produce little heat and are very efficient. They are available to fit screw type base fittings and pin type (snap-in). Most CFLs either consist of a number of short glass sticks, or two or three small tubular loops. Sometimes, they are enclosed in a glass bowl, made to look similar to a regular incandescent bulb. Most CFLs cannot be used with dimmers. They normally last up to 10,000 hours.
High-Intensity Discharge Lamps
High Pressure Sodium (HPS), Metal Halide, Mercury Vapor and Self-Ballasted Mercury Lamps are all high intensity discharge lamps (HID). With the exception of self-ballasted lamps, auxiliary equipment such as ballasts and starters must be provided for proper starting and operation of each type bulb. Compared to fluorescent and incandescent lamps, HID lamps produce a large quantity of light from a relatively small bulb.
HID lamps produce light by striking an electrical arc across tungsten electrodes housed inside a specially designed inner glass tube. This tube is filled with both gas and metals. The gas aids in the starting of the lamps. Then, the metals produce the light once they are heated to a point of evaporation.
Standard high-pressure sodium lamps have the highest efficacy of all HID lamps, but they produce a yellowish light. High-pressure sodium lamps that produce a whiter light are now available, but efficiency is somewhat sacrificed. Metal halide lamps are less efficient but produce a whiter, more natural light. Colored metal halide lamps are also available. HID lamps are typically used not only when energy efficiency and/or long life are desired, but also when high levels of light are required over large areas. Such areas include gymnasiums, large public areas, outdoor activity areas, roadways, pathways, and parking lots. Lately, metal halide is successfully being used in residential environments.
Low-Pressure Sodium Lamps
Low-pressure sodium lamps have the highest efficacy of all commercially available lighting sources. Even though they emit a yellow light, a low-pressure sodium lamp shouldn't be confused with a standard high-pressure sodium lamp. Low-pressure sodium lamps operate much like a fluorescent lamp and require a ballast. There is a brief warm-up period for the lamp to reach full brightness.
With a CRI of 0, low-pressure sodium lamps are used where color rendition is not important but energy efficiency is. They're commonly used for outdoor, roadway, parking lot, and pathway lighting. |
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Location: Jet City | And don't even get me started on Kelvin temperatures (a thermodynamic temperature scale) |
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Location: Bluffton, SC | I've fallen and I can't get up... |
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Location: closely held secret | And then there is....
The Dark Sucker Theory
For years, it has been believed that electric bulbs emit light, but recent information has proved otherwise. Electric bulbs don't emit light; they suck dark. Thus, we call these bulbs Dark Suckers.
The Dark Sucker Theory and the existence of dark suckers prove that dark has mass and is heavier than light.
First, the basis of the Dark Sucker Theory is that electric bulbs suck dark. For example, take the Dark Sucker in the room you are in. There is much less dark right next to it than there is elsewhere. The larger the Dark Sucker, the greater its capacity to suck dark.
Dark Suckers in the parking lot have a much greater capacity to suck dark than the ones in your room.
So with all things, Dark Suckers don't last forever. Once they are full of dark, they can no longer suck. This is proven by the dark spot
on a full Dark Sucker.
A candle is a primitive Dark Sucker. A new candle has a white wick. You can see that after the first use, the wick turns black, representing all the dark that has been sucked into it. If you put a pencil next to the wick of an operating candle, it will turn black. This is because it got in the way of the dark flowing into the candle. One of the disadvantages of these primitive Dark Suckers is their limited range.
There are also portable Dark Suckers. In these, the bulbs can't handle all the dark by themselves and must be aided by a Dark Storage Unit. When the Dark Storage Unit is full, it must be either emptied or replaced before the portable Dark Sucker can operate again.
Dark has mass. When dark goes into a Dark Sucker, friction from the mass generates heat. Thus, it is not wise to touch an operating Dark Sucker. Candles present a special problem as the mass must travel into a solid wick instead of through clear glass. This generates a great amount of heat and therefore it's not wise to touch an operating candle.
Also, dark is heavier than light. If you were to swim just below the surface of a lake, you would see a lot of light. If you were to slowly swim deeper and deeper, you would notice it getting darker and darker. When you get really deep, you would be in total darkness. This is because the heavier dark sinks to the bottom of the lake and the lighter light floats at the top. This is why it is called light.
Finally, we must prove that dark is faster than light. If you were to stand in a lit room in front of a closed, dark closet, and slowly opened the closet door, you would see the light slowly enter the closet. But since dark is so fast, you would not be able to see the dark leave the closet.
The next time you see an electric bulb, remember that it is a Dark Sucker. |
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Location: Budd Lake, NJ | Wabbit,
Thank you. At the end of just an awful day, thank you; that was pwicewess. (And if you thought it up out of youw own head, you awe vewy wascalwy indeed!!)
:D :D :D
--Kawen |
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Location: closely held secret | Karen, I'm glad I could help.
Actually, the origin of this theory is unknown. The legend is that it was thought up by a scientist at Bell Labs. |
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Location: Hot Springs, S.D. | I agree. I'm glad we started this thread, or I never would have known about dark suckers. I'm trying to figure out how I can incorporate this theory into guitar lessons. Are there sound suckers? Or perhaps tone suckers? (Oh, that would be an Esteban.) |
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OT - How many forum members does it takes to change a light bulb?
