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Topic: The Blue Light

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	Blue Sky and Rayleigh Scattering
		The blue color of the sky is caused by the scattering of sunlight off the molecules of the atmosphere.
		Therefore the light scattered down to the earth at a large angle with respect to the direction of the sun's light is predominantly in the blue end of the spectrum.
		In the graph at upper left, the blue brightness was normalized to 1 and the red and green expressed as a fraction of the blue.
	hyperphysics.phy-astr.gsu.edu /hbase/atmos/blusky.html (703 words)

	Why is the sky Blue?
		The white light from the sun is a mixture of all colours of the rainbow.
		The spectrum of light emission from the sun is not constant at all wavelengths, and additionally is absorbed by the high atmosphere, so there is less violet in the light.
		This is because all light is scattered relatively well through small angles--but blue light is then more likely to be scattered twice or more over the greater distances, leaving the yellow, red and orange colours.
	math.ucr.edu /home/baez/physics/General/BlueSky/blue_sky.html (1368 words)

	Artificial Lighting and the Blue Light Hazard (Site not responding. Last check: 2007-10-08)
		Blue light is an important element in "natural" lighting, and it may also contribute to our psychological health.
		Blue light is an important component of that mixture, so the 470nm-400nm band is not only unfiltered, it is often enhanced in the manufacturing.
		The high amount of blue in the light of lamps 4-6 deceives the brain into interpreting them as "bright" until they are observed side by side with the incandescents.
	www.mdsupport.org /library/hazard.html (6532 words)

	Activities
		Blue Light school camps are geared towards the provision of specific activities for primary and secondary school students deemed to be ‘at risk’.
		Blue Light activities are developed so as to be culturally and socially appropriate and target young people from diverse backgrounds so that all young people have an opportunity for participation.
		The inaugural Blue Light Skate Competition was held in March 2004 and is now an exciting addition to the Blue Light calendar of events.
	www.communitywebs.org /BlueLightSA/activities.htm (3302 words)

	Blue Light w Levulan
		Blue Light with Levulan is a type of photodynamic therapy (PDT) that consists of the topical application of Levulan (aminolevulinic acid) combined with BLU-U, a specialized blue light treatment.
		Blue Light with Levulan PLUS combines the Blue Light with Levulan with a Medical Microdermabrasion treatment.
		The blue light then activates these protophorphyrins which leads to shrinkage of the sebaceous glands.
	www.skin1.com /bluelight.html (392 words)

	BEAUTY SKIN Acne Light - Red/Blue Light Technology Acne Light for the cosmetic treatment of acne.
		The BeautySkin is a remarkable device that provides red and blue light for the cosmetic treatment of mild to moderate acne.
		Blue light penetrates the skin to the bacteria (Proprionibacterium acnes) which causes pimples and flheads.
		The blue light has an antibacterial effect and prevents the further development of pimples and flheads.
	www.beautyskinusa.com (334 words)

	Soft Blue Light Therapy for Baby Acne
		Blue light therapy is now a proven natural acne treatment.
		Blue light is soft and soothing, and will have a natural calming effect on your baby.
		Light treatment is best administered while the child is napping and should be used only with constant supervision.
	www.kaliszincolor.com /A_baby-acne.htm (344 words)

	Discover The Benefits of Blue Light Acne Treatment
		The blue light, as described below, attacks the bacteria that causes the acne, and the red light has an anti-inflammatory and healing effect on the skin.
		Patients are exposed to a blue light source for 15 minutes twice per week for 4 weeks.
		Light therapy for acne is considered "cosmetic" and is therefore not covered by insurance.
	www.kaliszincolor.com /A_natural_acne_treatment.htm (771 words)

	COPS Service 10 Description
		During the holiday season you are asked to put blue lights in your holiday decorations and your windows and tie blue ribbons on car antennas to show support for law enforcement officers who have given their lives in the line of duty for the citizens they have served.
		Dolly Craig is now deceased as well, but her idea of Project Blue Light burns bright in the hearts of the families in the COPS organization.
		These blue ribbons are a reminder of law enforcement personnel who have made the ultimate sacrifice and in honor of those men and women who serve their communities 24 hours a day, 7 days a week, year in and year out.
	www.nationalcops.org /serv10.htm (445 words)

	Blue Light and Macular Degeneration (Site not responding. Last check: 2007-10-08)
		People with fair skin and blue or light-colored eyes may be particularly susceptible to macular damage by blue light because they have less melanin in their irises.
		Additionally, when the light reaches the choroid and RPE of people with fair skin and blue eyes, there is less melanin there to absorb the radiant energy, leaving these tissues more vulnerable to light damage.
		Blue light waves are also very short and scatter easily, so a great deal of the glare we experience from sunlight also comes from blue light.
	www.mdsupport.org /library/blulight.html (799 words)

	Bela Balazs and Leni Riefenstahl: The Blue Light.
		The story which she wanted to tell is about a village in the mountains whose young men are drawn by a magical blue light which shines down from the top of a mountain when there is a full moon.
		The light directs the staring eyes towards itself, magically drawing forth the glances which hostily meet the traveler from the town, which fix themselves on the woman, which tells about furtive emotions and which coldly estimate the value of the crystals.
		If the light is not given any supernatural power, Junta’s ability to sleepwalk her way up the mountain in a dream-like state to the source of the light remains a puzzle.
	www.uni-konstanz.de /FuF/Philo/LitWiss/MedienWiss/Forsch/Telaviv/Riefenstahl-englisch.html (5900 words)

	The Blue Light That Follows Me (Site not responding. Last check: 2007-10-08)
		My friend saw this blue light in this one spot and asked me what it was and I looked over there and said "what are you talking about?".
		It was in two spots at the top of the stairs and where our fooseball table is. But if it was in these two spots it would have to flow throughout the whole basement, and it didn't.
		All of their lives were shortened.Coffe was sick, Mitty was sick her whole life and got kidney failure, and Chester bit too much and my parents were afraid he would bite someone and they would sue us so he got put to sleep.
	www.castleofspirits.com /stories01/bluelight.html (272 words)

	[No title]
		He found the blue light, and made her a signal to draw him up again.
		The poor soldier fell without injury on the moist ground, and the blue light went on burning, but of what use was that to him.
		In his flight he had forgotten the most valuable things he had, the blue light and the gold, and had only one ducat in his pocket.
	www-2.cs.cmu.edu /~spok/grimmtmp/089.txt (1229 words)

	I am driving my car at the speed of light and I turn on my headlights. What do I see?
		As a massive object approaches the speed of light the amount of energy needed to accelerate it further increases so that an infinite amount would be needed to reach the speed of light.
		Everything else will be coming towards you at nearly the speed of light, so the light reflected from it will be Doppler shifted to very high frequencies--towards the ultraviolet or beyond.
		The objects passing are contracted in length but because of the different times of passage for the light and effects of aberration, the snapshot will show the objects you pass as rotated.
	math.ucr.edu /home/baez/physics/Relativity/SpeedOfLight/headlights.html (802 words)

	Blue Light Signaling through the Cryptochromes and Phototropins. So That's What the Blues Is All About -- Liscum et al. ...
		In blue light, the PHR domain of crys is activated resulting in a presumed structural change that allows phosphorylation of the CCT.
		Intersystem crossing results in the formation of the triplet-state (blue T), and this excited state is stabilized by protonation of the N5 atom of the isoalloxazine ring through the abstraction of a proton from the conserved Cys in the LOV domain polypeptide.
		Guo H, Mockler T, Duong H, Lin C (1999) The Arabidopsis blue light receptor cryptochrome 2 is a nuclear protein regulated by a blue light-dependent post-transcriptional mechanism.
	www.plantphysiol.org /cgi/content/full/133/4/1429 (5298 words)

	SAPOL - CPSB Blue Light (Site not responding. Last check: 2007-10-08)
		Blue Light is a crime reduction initiative that began in 1982, to address the growing problem of youth crime by providing wholesome and well supervised recreational activities for young people.
		The success of the programs continue as Blue Light participants are equipped with life skills and are educated about life decisions and consequences while interacting with police at a social level, effectively breaking down the barriers and forming
		Each Blue Light Branch is centrally co-ordinated from the Community Programs Support Branch by the State Co-ordinator, whose role it is to ensure that all Blue Light activities operate within the guidelines and policies set out by the Blue Light Constitution.
	www.sapolice.sa.gov.au /operations/community/cpsb_bluelight.htm (255 words)

	Amazon.com: Blue Light Boogie: Music: Taj Mahal (Site not responding. Last check: 2007-10-08)
		Blue Light Boogie is a compilation cd of songs performed in the 90's by one of the premier "organic American" musicians, Taj Mahal.
		Blue Light Boogie provides a good representation of styles and songs which Taj Mahal has done over the years.
		Blue light Boogie is a slow and sultry blues.
	www.amazon.com /exec/obidos/tg/detail/-/B00000IM7V?v=glance (1097 words)

	Mix your own reflection nebula (Site not responding. Last check: 2007-10-08)
		These changes are due to the scattering of white light on grains of sulfur which are being eliminated from the mixture and gradually grow in size.
		This means that blue light with the wavelength of 450 nm is preferred against red light, which typically has 650 nm, by a factor (650/450)
		Such an arrangement ensures ideal lighting and first of all allows you to watch the light that passes through the solution and appears as a bright spot on a screen.
	leo.astronomy.cz /mix/mix.html (484 words)

	Report: Kmart revives blue light specials without the light - Jan. 27, 2005
		For much of its history, Kmart was best known for using flashing blue lights and announcements that began, "Attention Kmart shoppers" to hype the short sales of clearance merchandise.
		But the blue light eventually became associated with cheap and unattractive merchandise and the light and the announcement became the fodder of jokes at the company's expense.
		The chain even tried to revive the use of the blue light in 2001, saying at that time that marketing research showed 62 percent of those polled recognize the blue light special, and of those who knew it, 93 percent have a positive view of it.
	www.cnn.com /money/2005/01/27/news/fortune500/kmart_bluelight/index.htm?cnn=yes (499 words)

	Leni Riefenstahl - Das blaue Licht (The Blue Light), 1932
		Leni Riefenstahl - Das blaue Licht (The Blue Light), 1932
		Junta sleeps inside her cabin as Vigo sits outside, contemplating the mysterious woman he has grown to love, but as the light of the full moon shines upon Junta's face, she is awoken and once again she is beckoned to climb Monte Cristallo.
		Vigo follows Junta's safe path, and ultimately finds the source of the blue light: a secret grotto filled with glimmering crystals, a private abode of contemplation for Junta, her place "where dreams are made of," one might say.
	www.riefenstahl.org /director/1932 (1127 words)

	Light Blue Optics
		Light Blue Optics has developed ground-breaking laser projection technology, which will power a new generation of pocket-sized digital video projectors.
		Digital video projectors that produce large, high quality images are becoming increasingly popular, but there are limitations in the technology that make miniaturisation very difficult, preventing projectors from making inroads into the potentially lucrative mobile device markets.
		Light Blue Optics is currently developing links with a number of industrial partners.
	www.lightblueoptics.com (158 words)

	Acne Treatment with Acne Lamp \| Blue Light Therapy
		British Journal of Dermatology, Phototherapy with blue and red light was studied in the treatment of mild to moderate acne.
		After 12 weeks of 15-minute daily active treatments with a portable light source, a mean improvement of 76% in inflammatory lesions was observed.
		Investigators and patients favored blue-red light therapy, with more patients achieving marked improvement or clearance than in any of the other treatment group.
	www.acnelamp.com (124 words)

	World of Reading: The Blue Light
		Junta is hated by the people in the village where she lives, especially by the women, who suspect her of being a witch.
		Only she can climb the nearby mountains to a cave high up, whence a mysterious blue light glows when the moon is full.
		Eventually she shares the secret of the blue light with one man, and he betrays it.
	www.wor.com /catalog/1377.asp (156 words)

	C&EN: Latest News - BLUE-LIGHT SPECIAL
		The photo shows a beam of green light from a laser pointer entering a vial of clear liquid and being transformed into a beam of blue light.
		Red and green light are readily produced in devices such as organic light-emitting diodes, but scientists are still struggling to find an efficient and stable way to generate the third primary color of light--blue--in molecular systems.
		The green laser light excites a well-known ruthenium bipyridine complex to the triplet state, and the triplet efficiently transfers its energy to 9,10-diphenylanthracene (DPA), forming a long-lived, excited triplet DPA.
	pubs.acs.org /cen/news/83/i32/8332notw8.html (339 words)

	Jefferson And Brigham And Women’s Researchers Find Blue Light Important For Setting Biological Clock
		Two Brandeis Scientists Shed Light On The First Photoreceptor Known To Set Circadian Rhythms (November 24, 1998) -- For the first time, scientists have identified a protein that uses natural light to set circadian rhythms -- and the protein, found in species ranging from microbes to fruit flies to humans,...
		Brainard and his co-workers previously discovered that wavelengths of light in the blue region of the visible spectrum are the most effective in controlling the production of melatonin, which plays an important role in the body's circadian rhythms.
		The researchers found that blue light was twice as effective as the same amount of green light at resetting the internal biological clock.
	www.sciencedaily.com /releases/2003/09/030911072038.htm (646 words)

	Localization of the Blue-Light Receptor Phototropin to the Flagella of the Green Alga Chlamydomonas reinhardtii -- ...
		Excitation of the photoreceptor by blue light induces a cyclic
		in response to blue light (Sakamoto and Briggs, 2002
		Short, T.W., and Briggs, W.R. The transduction of blue light signals in higher plants.
	www.molbiolcell.org /cgi/content/full/15/8/3605 (5923 words)

	nbc5i.com - HealthWatch - Blue Light Helps Fight Adult Acne (Site not responding. Last check: 2007-10-08)
		Photodynamic therapy, also called blue light therapy, begins by swabbing medication onto a patient's affected areas before treating them with the special light.
		Under the blue light, the pimple-causing bacteria dies and oil glands shrink, Dr. Angela Bowers said.
		Blue light therapy was originally approved by the Food and Drug Administration as a cancer treatment.
	www.nbc5i.com /health/4205496/detail.html (225 words)

	Metal White Xenon Bulbs - super white bulb hid xenon headlamp bright white headlight cool blue light
		From 3600K and up, the halogen gas emits a light color approaching the bright white sun light on a hot summer day, but there is still a limit of brightness the halogen gas can provide.
		The result is a bright white light beam with a blue background that can be seen from miles away, which closely resembles the HID light.
		The Blue tip reflects more Blue and White light, complimenting the blue color glass, thus making the light beam more white, while the headlamp looks blue when the bulb is not lit.
	www.lightingresearch.com /metal_white.htm (342 words)

	The Blue Light (Site not responding. Last check: 2007-10-08)
		A guard had been standing nearby and witnessed the event, I believe the person was murdered, but my mind had been drifting at the time and my memory isn't the greatest, so I'm not exactly sure.
		He said the light bulb burst at the moment of the person's death.
		They went up to the fountain/statue/thing, made a big show of everything including lots of noise, and I tried to forget about the light, but it was just sitting at the back of my mind...
	www.castleofspirits.com /bluelight.html (671 words)

	Scifilm -- Musings, THE BLUE LIGHT (1932)
		A strange blue light shines in a mountain and lures men to their deaths.
		This movie qualifies for fantastic cinema by the rather compelling mystery of its central premise; we don't know what the blue light is, but we feel it has a mystical pull to it, and this sucks us into the tale.
		Ultimately, it is all explained away in non-fantastic terms, so the movie becomes less fantastic as a result; still, this isn't a whole lot different than many a movie that promises a monster and fails to deliver one in place of a mundane explanation.
	www.scifilm.org /musings2/musing620.html (241 words)

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