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Today you'll find a remarkable light bulb burning bright at a fire station in Livermore, California. It hasn't been turned off since 1901.
True or false?
Answer: http://www.snopes.com/science/lightbulb.asp
Today you'll find a remarkable light bulb burning bright at a fire station in Livermore, California. It hasn't been turned off since 1901.
There is some evidence that a carbide filament bulb burning in the Fire Department, Livermore, South Alameda County, California, has been burning since 1901.
Yeah, right. So why do I replace the bulbs in my workroom every couple of weeks even though I leave them on all the time?SGT said:Most light bulbs burn when turned on or off, due to transients (electric and thermal). A bulb that is continuously on is more likely to last longer, especially if it is a low power one.
Ivan Seeking said:I know! The quality of incandescent bulbs is in the pooper.
Gokul43201 said:A few years ago (5-ish ?), people were doing backflips when Gallium Nitride based blue LEDs were developed. One of the suggested applications was in lightbulbs that would have lives of tens of years. I ever remember this being employed in traffic lights, somewhere in the UK. Anything come of this ?
hypnagogue said:I wouldn't be surprised if this was intentional on the part of the manufacturers, in order to get customers to buy the product more frequently.
I have a blue LED flashlight - the batteries last forever.Gokul43201 said:A few years ago (5-ish ?), people were doing backflips when Gallium Nitride based blue LEDs were developed. One of the suggested applications was in lightbulbs that would have lives of tens of years. I ever remember this being employed in traffic lights, somewhere in the UK. Anything come of this ?
hypnagogue said:I wouldn't be surprised if this was intentional on the part of the manufacturers, in order to get customers to buy the product more frequently.
russ_watters said:Bulbs.com sells http://www.bulbs.com/products/product_detail.asp?page=products&inventory=11591 (for about $0.50 apiece (1,620 lumens, 750 hours). That's almost exactly one month of continuous usage at 50 cents a month to replace. Absolutely trivial. The energy it uses in that month, however (at 12.5 cents per kWh) costs you $935!
The http://www.bulbs.com/products/product_detail.asp?page=products&inventory=8002 (a relatively expensive CF) goes for $12 (1,750 lumens, 25w, 10,000hr). That's about 13.5 months of usage, or about 89 cents a month if used continuously. Energy used per month of operation: $233.
Keep your eye on the ball, people!
The "100 year light bulb" is designed with a special filament made of a durable material, such as carbon or tungsten, that can withstand high temperatures and resist burning out. It also has a thicker filament than a regular light bulb, which helps it last longer.
Yes, the "100 year light bulb" is more energy efficient than a regular light bulb. It uses less energy to produce the same amount of light, and its lifespan of 100 years means it will need to be replaced less often, reducing energy and material waste.
The "100 year light bulb" and LED bulbs have similar lifespans, but the "100 year light bulb" produces a warmer, more natural light compared to the cooler light of LED bulbs. However, LED bulbs are more energy efficient and cost-effective in the long run.
Yes, the "100 year light bulb" can be used in most standard lighting fixtures, including lamps, ceiling fixtures, and chandeliers. However, it may not be compatible with dimmer switches or enclosed fixtures, so it is important to check the packaging or consult with a professional before using it in these applications.
No, the "100 year light bulb" does not emit any harmful chemicals or gases. It is made with traditional incandescent technology, which does not contain any toxic substances. However, it does emit some heat, so it is important to use caution when handling the bulb while in use.