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steveA
Trad climber
Wolfeboro, NH
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LED is just a doped unencapsulated diode.
Doped to be stupid so it can glow the right wavelength.
Stupid diode.
Werner- that was one of your best post ever! Ha, Ha
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frank wyman
Mountain climber
montana
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I work in shipping and receiving, Got pallets of those in various wattage. (maybe work out a barter with you Colorado guys...wink...wink..)
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jstan
climber
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Scientists believe that about one hundred billion years ago the Earth, the Sun, and all the planets of the Solar System were nothing but a cloud of cold dust particles swirling through empty space.
Couple of things.
1. The prevailing view is that the known universe came into existence only a little less than 14 billion years ago. I have seen no data suggesting the 100 billion years mentioned in the quoted source.
2. Calculations also indicate black holes begin to be possible only at masses several times the mass of our sun. Our sun is expected to become a red giant that will extend beyond earth's orbit and will subsequently evolve into a white dwarf.
Initially I also had a problem with the statement that the sun and the planets all formed from the same accretion disk. My problem arose from the high metallicity on earth as compared to the one to three percent metallicity quoted for the sun. I think I don't understand how to read the literature. Radiation issuing at the center of the sun is subject to Compton scattering so severe it takes a million years for the energy to reach the photosphere and us. I don't think we have any idea as to metallicity of the sun generally. We must be able to measure directly only that of the photosphere. If so, we don't have to presume an already formed sun then encountered highly metallic ejecta from supernova(s) that then formed the accretion disk. Simpler.
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Reilly
Mountain climber
The Other Monrovia- CA
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FM, what gives with all the LED's they're selling now for video and still? I haven't actually
looked into them. Are they a hoax? Some are a lot of moolah for a hoax.
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this just in
climber
north fork
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My deepest condolences to all who loved and knew incandescents.
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Curt
climber
Gold Canyon, AZ
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Except for the heat, nothing beats that white light of vaporizing metal. Today's LED light absolutely sucks for illuminating digital photography. I can guarantee that Hollywood's not giving up their incandescent lighting anytime soon.
That may have been true in the past, but today you can buy LED lighting matched to any color temperature you like.
Curt
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survival
Big Wall climber
Terrapin Station
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Not everyone is happy about this
Fish is a caveman......
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Ksolem
Trad climber
Monrovia, California
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How many Juilliard School of Music students does it take to change a light
bulb?
Two.
One gets up there to change the bulb, the second pulls the ladder out from under him.
How many record producers does it take?
I don't know, what do you think?
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HighTraverse
Trad climber
Bay Area
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Back on topic.
So none of you need to keep a well from freezing? they are handy! As tioga said "heat tape"
Followed by snarky responses.
Heat tape is way more efficient than a light bulb, even more so when insulated. (try wrapping insulation around your 100 watt incandescent bulb).
I've been working with LEDs as illumination sources in technical applications for about 20 years. They're finally ready for domestic lighting. What a shame LEDs don't convert about 97% of the electrical energy to heat. Especially in the summer.
!RIP incandescent bulbs!
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JEleazarian
Trad climber
Fresno CA
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Typical "one size fits all" mandate. No room for individual preference. Instead, Big Brother determines what's best for everyone. While I suspect most posters on this forum (including me) think modern technology is superior to the incandescent bulb, the best option for color is also much more expensive. There are doubtless individuals for whom the phase-out of incandescent bulbs leaves only inferior options.
That said, I love modern lighting technology -- particularly since I seem to be the only one in our house who senses a connection between leaving lights on and the amount of our electricity use. As mentioned, they can provide light in any wavelength you want, and last a lot longer (but, also as mentioned, cost a lot more). Besides, most of the time here in the Big Raisin, adding heat does not promote comfort.
John
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Reilly
Mountain climber
The Other Monrovia- CA
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Seems to me this ban is just another regressive tax on the poor and the
renters. It seems fairer to limit house size, doesn't it? When will it
become a misdemeanor to leave a room without shutting off the lights? More
to the point how about all the 6000 SF houses around me that have their
massive AC systems going 24/7 regardless of there being anybody home?
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JEleazarian
Trad climber
Fresno CA
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Reilly, you nicely illustrate the folly of FortMental's argument. Rather than use less energy by occupying a smaller house, we mandate that everyone use less energy by using more efficient bulbs. No matter that the more efficient bulbs are either more expensive or provide light some users find inferior to incandescents. Big Brother has chosen the option it prefers and imposes that preference on everyone.
Of course, the Al Gores of the world can assuage their consciences by advocating measures like these -- and paying others (in the form of pollution credits) to take the sacrifices for them.
John
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philo
Trad climber
Is that light the end of the tunnel or a train?
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Yeah! And while we're at it what about our God given right as Americans to drive cars that get less than ten miles to the gallon?
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Reilly
Mountain climber
The Other Monrovia- CA
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Well, Philo, that is also probably just a matter of time. They are well
on their way to doing that in Europe. Personally I'm a big fan of China's
one child policy. But our politards would never mess with something so
sacrosanct here. Besides, the 800 pound gorilla of growth certainly isn't
gonna allow that to happen.
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Q- Ball
Mountain climber
where the wind always blows
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I visited an elderly friend on Christmas eve, he was joking about how small he has to split the wood these days. His wife has very bad arthritis and can't pick up much. (They heat only by wood stove)
The conversation then turned about how he can't find cheap bulbs for the few lamps he has in his house.
I told him to let me know if he needs help splitting those logs a little thinner.
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Curt
climber
Gold Canyon, AZ
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Reilly, you nicely illustrate the folly of FortMental's argument. Rather than use less energy by occupying a smaller house, we mandate that everyone use less energy by using more efficient bulbs. No matter that the more efficient bulbs are either more expensive or provide light some users find inferior to incandescents. Big Brother has chosen the option it prefers and imposes that preference on everyone.
Oooh. Bad, bad, Big Brother rears his ugly head again. Why don't we bring back tetraethyl lead, DDT, asbestos insulation and Freon while we're at it? Let's eliminate CAFE standards, while we're at it. I mean, who is the government to decide for all of us?
Of course, the Al Gores of the world can assuage their consciences by advocating measures like these -- and paying others (in the form of pollution credits) to take the sacrifices for them.
I thought you were an economist? Surely you understand how "pollution credits" work.
Curt
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philo
Trad climber
Is that light the end of the tunnel or a train?
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Good by incandescent bulbs, good by CFL bulbs.
Hello LED lighting.
The future looks bright.
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Chaz
Trad climber
greater Boss Angeles area
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What was the reason for changing out all the bulbs again?
( besides placating the dumbshits who can't tell the difference between asbestos and a lightbulb )
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Jingy
climber
Somewhere out there
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oh, f*#k… the sky is falling!!!!
What the f*#k am I gonna do?
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