Archive for May, 2010
Lean about Photography and its Origins
Photography is the result of combining several technical discoveries . Long before the first photographs were made, Chinese philosopher Mo Ti described a pinhole camera in the 5th century, Albertus Magnus discovered silver nitrate and Georges Fabricius discovered silver chloride. Daniel Barbaro described a diaphragm in 1568. Wilhelm Homberg described how light darkened some chemicals (photochemical effect) in 1694. The fiction book Giphantie, published in 1760, by French author Tiphaigne de la Roche, described what can be interpreted as photography.
Photography as a usable process goes back to the 1820s with the development of chemical photography. The first permanent photograph was an image produced in 1825 by the French inventor Nicéphore Niépce. However, because his photographs took so long to expose, he sought to find a new process. Working in conjunction with Louis Daguerre, they experimented with silver compounds based on a Johann Heinrich Schultz discovery in 1724 that a silver and chalk mixture darkens when exposed to light. Niépce died in 1833, but Daguerre continued the work, eventually culminating with the development of the daguerreotype in 1837. Daguerre took the original photo of a person in 1839 when, while taking a daguerreotype of a Paris street, a pedestrian stopped for a shoe shine, long enough to be captured by the long exposure (several minutes). Eventually, France agreed to pay Daguerre a pension for his formula, in exchange for his promise to announce his discovery to the world as the gift of France, which he did in 1839.
Meanwhile, Hercules Florence had already invented a very similar process in 1832, naming it Photographie and William Fox Talbot had earlier discovered another means to fix a silver process image but had kept it secret. After reading about Daguerre’s invention, Talbot refined his process so that portraits were made readily available to the masses. By 1840, Talbot had invented the calotype process, which deliveres negative images. John Herschel made many contributions to the new methods. He invented the cyanotype process, now familiar as the “blueprint”. He was the first to use the terms “photography”, “negative” and “positive”. He discovered sodium thiosulphate solution to be a solvent of silver halides in 1819, and informed Talbot and Daguerre of his discovery in 1839 that it could be used to “fix” pictures and make them permanent. He made the first glass negative in late 1839.
In March 1851, Frederick Scott Archer shared his findings in “The Chemist” on the wet plate collodion process. This became the most widely used process between 1852 and the late 1880s when the dry plate was introduced. There are three subsets to the Collodion process; the Ambrotype (positive image on glass), the Ferrotype or Tintype (positive image on metal) and the negative which was printed on Albumen or Salt paper.
Many advances in photographic glass plates and printing were made in through the nineteenth century. In 1884, George Eastman developed the technology of film to replace photographic plates, leading to the technology used by film cameras today.
In 1908 Gabriel Lippmann won the Nobel Laureate in Physics for his way of reproducing colours photographically based on the phenomenon of interference, also known as the Lippmann plate.
Processes
Black and White Images
Colour film became widely available in the decades that followed, but the professional photographer still preferred the black and white images that gave that edgy look.
It is important to note that some monochromatic pictures are not always pure blacks and whites, but also contain other hues depending on the process. The Cyanotype process produces an image of blue and white for example. The albumen process which was used more than 150 years ago had brown tones.
Many photographers continue to produce some black and white images. Some full colour digital images are processed using a variety of techniques to create black and whites, and some cameras have even been produced to exclusively shoot monochrome.
Colour
Colour photography was explored at the beginning in the mid 1800s. Early findings in colour could not fix the photograph and prevent the colour from fading. The first permanent colour photo was taken in 1861 by the physicist James Clerk Maxwell.
Early colour photographs were taken by Prokudin-Gorskii (1915). One of the early methods of taking colour photos was to use three cameras. Each camera would have a colour filter in front of the lens. This technique provides the photographer with the three basic channels required to recreate a colour picture in a darkroom or processing laboratory. Russian photographer Sergei Mikhailovich Prokudin-Gorskii developed another technique, with three colour plates taken in quick succession.
A practical application of the process was held back by the very limited colour response of early film, however, in the early 1900s, following the work of photo-chemists such as H. W. Vogel, emulsions with adequate sensitivity to green and red light at last became available.
The first colour plate, Autochrome, used by the French Lumière brothers, reached the market in 1907. It was based on a ’screen-plate’ filter made of dyed dots of potato starch, and was the only colour film on the market until German Agfa introduced the similar Agfacolor in 1932. In 1935, American Kodak introduced the first modern (’integrated tri-pack’) colour film which was developed by Polish constructor Jan Szczepanik. It was Kodachrome, based on three coloured emulsions. This was followed in 1936 by Agfa’s Agfacolor Neue. Unlike the Kodachrome tri-pack process, the colour couplers in Agfacolor Neue were integral with the emulsion layers, which greatly simplified the film processing . Most contemporary colour films, except Kodachrome, are based on the Agfacolor Neue technology. Instant colour film was introduced by Polaroid in 1963.
Colour photography may form images as a positive transparency, intended for use in a slide projector or as colour negatives intended for use in creating positive colour images on specially coated paper. The latter is now the most common form of film (non-digital) colour photography owing to the introduction of automated photo printing equipment.
Full spectrum photography ultraviolet and infrared
Ultraviolet and infrared films have been available for some time and employed in a variety of photographic avenues since the 1960s. New technological inventions in digital photography have opened a new direction in full spectrum photography, where careful filtering choices across the ultraviolet, visible and infrared lead to new artistic visions.
Modified digital cameras can display some ultraviolet light and all of the visible and much of the near infrared spectrum. As most digital imaging sensors are sensitive from about 350 nm to 1000 nm. An off-the-shelf digital camera contains an infrared hot mirror filter that blocks most of the infrared and a bit of the ultraviolet that would otherwise be detected by the sensor, narrowing the accepted range from about 400 nm to 700 nm. Replacing a hot mirror or infrared blocking filter with an infrared pass or a wide spectrally transmitting filter allows the camera to detect the wider spectrum light at greater sensitivity. Missing the hot-mirror, the red, green and blue (or cyan, yellow and magenta) coloured micro-filters placed over the sensor elements pass varying amounts of ultraviolet (blue window) and infrared (primarily red, and somewhat lesser the green and blue micro-filters).
Uses of full spectrum photography are for fine art photography, geology, forensics and law enforcement and even some claimed use in ghost hunting.
Digital Photography
The Nikon D1 was the first DSLR to truly compete with and begin to replace, film cameras in the professional photojournalism and sports photography fields and was the start of something very new.
Television was leading the way and the commercial photographers had a steep challenge ahead of them, while on location how could they get their images processed and to the newspapers quickly.
Press and News photographers at remote locations often carried miniature photo labs and a means of transmitting images through telephone lines. In 1981, Sony unveiled the first widely available camera to use a charge-coupled device for imaging, eliminating the need for film: the Sony Mavica. While the Mavica saved images to disk, the images were displayed on television and the camera was not fully digital. In 1990, Kodak unveiled the DCS 100, the first commercially available digital camera. Although its high cost precluded uses other than photojournalism and professional photography, commercial digital photography was born.
Digital imaging uses an electronic image sensor to record the image as a set of electronic data rather than as chemical changes on film. The important difference between digital and chemical photography is that chemical photography resists manipulation because it involves film and photographic paper, while digital imaging is a highly manipulative medium. This difference allows for a degree of image post-processing that is comparatively difficult in film-based photography and permits different communicative potentials and applications.
Digital point-and-shoot cameras have become widespread family products, outselling film cameras and including new features such as video and audio recording. Kodak announced back in January 2004 that it would no longer sell reloadable 35 mm cameras in western Europe, Canada and the United States after the end of that year. Kodak was at that time a minor player in the reloadable film cameras market. In January 2006, Nikon followed suit and announced that they will stop the production of all but two models of their film cameras: the low-end Nikon FM10, and the high-end Nikon F6. On May 25, 2006, Canon publicised that they will stop developing new film SLR cameras. Though most new camera designs are now digital, a new 6×6cm/6×7cm medium format film camera was introduced in 2008 in a co-operation between Fuji and Voigtländer.
According to a study made by Kodak in 2007, 75 percent of professional photographers say they will continue to use film, even though some embrace digital.
According to the U.S. survey results, more than two-thirds (68 percent) of professional photographers prefer the results of film to those of digital for certain applications including:
- film’s superiority in capturing more information on medium and large format films (48 percent);
- creating a traditional photographic look (48 percent);
- capturing shadow and highlighting details (45 percent);the wide exposure latitude of film (42 percent); and
- archival storage. (38 percent)
Digital imaging has raised many ethical concerns because of the ease of manipulating digital photographs in post processing. Many photographers have declared they will not crop their pictures, or are forbidden from combining elements of multiple photos to make “illustrations,” passing them as real photographs. Today’s technology has made picture editing relatively simple for even the novice photographer. However, recent changes of in camera processing allows digital fingerprinting of RAW photos to verify against tampering of digital photos for forensics use.
Camera phones, combined with popular photo sharing web sites, have lead the way to a new kind of social photography. But that is a whole new article.
Author: Peter Davey MA DipM
Uglygov.com The Social Networking Website for Politics
The first social network for politics, www.uglygov.com, has just opened its doors, and not a moment too soon. Those of you that have been paying attention lately are probably shocked at the power grab going on in Washington D.C. The America most of us love is fading away. Freedoms are fading away. The U.S. Constitution is just a piece of paper, and no longer a contract between government, and its citizens.
Welcome Americans and patriots. Tyranny has taken over our government. They have stopped listening to the people. They have forgotten that they work for us. Join our social network of patriots. Start a profile, share your ideas, your blogs, your videos, your events and let’s take America back.
We need people to get involved. This is our country, build on the blood, sweat, and tears of generations of proud Americans. In mere months our leaders have ruled via fiat and are moving us faster and faster toward Western European style socialism. Socialism has been a massive failure wherever it has been tried.
President Obama has nationalized approximately 41% of our nation’s businesses: auto, banking, health insurance, and student loans. And he isn’t done yet. He’s moving on to energy by pushing his oppressive cap and trade legislation.
People have already gotten active via peaceful protests, emails, faxes, and phone calls. Uglygov.com is the site that will help us organize.
I urge you to take the time to join www.uglygov.com, and participate in taking America back. Our politicians are spending the future. Our children’s future. Our grandchildren’s future. They must be stopped. The time to organize is NOW, before its too late. We need to vote out all the senators and congressmen that have voted for Obama’s socialist agenda.
Squirrels in the Attic in Chorley, Preston and Leyland.
The grey squirrel population in the North West U.K. has rocketed over the last 20 years to the degee that they have grown to be a major household pest dealt with by Squirrels in Attic Pest Control
The grey squirrels which we see in our parks and gardens (Sciurus carolinensis) are not native to the British isles, having been imported here less than two-hundred years Canada and America.
Like many members of the family Sciuridae, the Grey Squirrel is a hoarder; it hoards food in many small caches for later recovery. Some caches are temporary, especially those made near the site of a sudden surfeit of food.
Others are more permanent and are not collected until weeks later. It has been seen that each squirrel makes several thousand caches each year. Squirrels have very good spatial memory for the positions of these caches, and use far and near landmarks to relocate them. Smell is used once the squirrel is within a short distance of the cache.
The nest of the squirrel is called a dray (or drey) and it is standard for the female to have two litters per year, with two to four babies each.
They are often minor problems, digging bulbs and stealing food intended for birds but can be major pests when they enter our houses.
It is increasingly common for Trafford Pest Control to be called out to properties where a dray has been constructed in a loft or attic space.
Squirrels are rodents and as such have teeth which never stop growing; the very word rodent comes from the Latin word rodere which means to gnaw and this they do very well indeed.
It is rare to enter a roof space where a dray has been found and find that they have not chewed electrical wiring, indeed it is estimated that forty percent of fires without an obvious cause may be started by rodents chewing on the wiring.
Unfortunately they can also chew through water-pipes, especially with the modern movement towards plastic push-fit piping.
As if that is not enough, most household insurance policies exclude damage done by vermin so if a squirrel floods your home by gnawing through a water pipe in the roof void you may find yourself without insurance cover.
Removing Squirrels in Loft needs professional help, not least in as much as the law regarding squirrels is ever changing. You cannot simply obtain a packet of poison from your local store and deal with them that way as you would be committing an offence.
Furthermore you cannot trap them and move them some distance away, not only would removing a squirrel from the area of its food hoards probably starve it to death, it is also breaking the law under the Wildlife & Countryside Act 1981 which makes it illegal to release a grey squirrel in in the British Isles.
That applies also to rescuing and/or rehabilitating and releasing injured squirrels.
In most cases trapping is the the only option and this must be done in a specific manner with routine, regular inspections of the traps.
Trapped squirrels should be then humanely dispatched.
If you have a squirrel infestation in Lancashire, Cheshire or Manchester call us on 01925 670375
Silver Dollar Values
All old Morgan silver dollar values might be exposed to price increases for all the versions. The types of silver dollars are treasured by coin collectors to be a nest egg for the future. Hence the shrewd coin collector will look to see the silver dollars value for each of these to see which ones they want to purchase.
Although many coins are desired by coin collectors there is a group of people who concentrate on collecting silver dollars. As these silver dollars are not that plentiful the choices that are made should be ones where the coin is known to increase in value with the passage of time. Unlike other coins silver dollar values can be found on the web as well as from coin dealers.
Any other silver dollar which many coin collectors are excited about is the Peace silver dollar. This silver dollar came into produce after 1918. Since not a lot of these Peace silver dollars were minted, they are thought of as being rare. Thus you can be expecting the silver dollar values for these coins that will be expensive.
Since there are not many of these silver dollars to be found you may want to research the ones that are known to give good value for money. You’ll be able to choose the ones like the Morgan silver dollars or the Peace silver dollar as being silver dollars that you should think about adding to your collection. The silver dollar values for these are presently known and documented on the Internet.
Out of the Peace silver dollars the ones which were minted at the Philadelphia mint are regarded to be still more valuable than the other Peace dollars. The Peace silver dollar values for the 1928 coin are significantly higher in price. To attain an obvious idea of the varied values that are given for silver dollars you should look for silver dollars values. The information will help you when you take your silver coins on the way to be evaluated by coin dealers.
Get a Good Comparison within the Different Cruise Deals
Are you having fed up through the pressures at work, at home, and at your atmosphere? Get some from fresh air for yourself. Take time to relax and enjoy. You should remember that there is a planet in existence you must see. The world is the most beautiful creation that you should appreciate and get pleasure from. Why not go on a cruise to have time alone? You get to sense the sea breeze, smell the fragrance belonging to the sea, and listen to the calling of this waves. This kind of trip will surely bring you to a especially memorable encounter for the lifetime. This is adequate to get you energize for that days at work to come. Occasionally, you can easily get irritated by the atmosphere around you because you no longer give time for yourself.
A cruise is one great ideas for the vacation for you. You possibly can find the most effective presents for the cruise vacation at compare hotel price. This website is equipped with links to lowest rates of cruise packages. You are able to save around 75% on cruises, buy cheap hotels in san francisco otherwise cheap hotels in bangkok. You may need not waste your time getting and locating the most effective travel agencies that will cater your needs. As long as you’ve got an internet access, every thing becomes extraordinarily simple. You just need to log on to the web page. From there, you are able to also compare bookings that are available inside the net. Compare the rates and inclusions belonging to the package. Once you’ve got decided where to go, you can book right away.
Forex Megadroid Software - Why Buy It?
Want to make more profits out of forex trading journey? Then why not try this unique forex software - Forex Megadroid. Here are 3 reasons to give this simple auto program a go-
1. I myself did eventually get the product, despite not finding an honest review. It was the fact they give you a 60 day money back guarantee that convinced me in the end, as it gave me an 8 week window to try it out. My honest opinion of the Megadroid robot is (and this is NOT a review) that it has made consistent winning trades for me, although not matching the amazing claims on their website. However, I have as yet only tested it on the lower safer settings. The more aggressive settings will obviously create more profit, but at a greater risk. - excerpt of article from ezinearticles, Mike Weaver
2. The intelligent robot is an accurate and reliable forex program. What makes this system different from the others is its being RCTPA-based. RCTPA, which stands for Reverse Correlated Time and Price Analysis, is a technology that enables Forex MegaDroid to instantly adjust its trading according to the fluctuations in the forex market. However, the only drawback is that it trades only one currency pair, which is Euro-US dollar. - excerpt of article from ezinearticles, Helen Wilson
3. One of the biggest draws of using this product is that the designers state that it is completely undetectable to brokers. This is important as many brokers who find traders who are significantly increasing their profits ask the client to close the account. With the claim that you can almost quadruple your profit, the news that it cannot be monitored by brokers is encouraging. You are left to make a nice profit without having to worry about being harangued by nervous brokers. - excerpt of article from ezinearticles, Oscar Philips
Remember, forex megadroid comes with an 8 week no questions asked refund offer. That means, if you do not achieve the kind of results you want with it - just return it and get your money back. This is a nice safety net.
The Real History of the macingtosh PC
Originally launched with a George Orwell-inspired, Ridley Scott directed commercial during Super Bowl XVIII in 1984, Macintosh computers were first introduced to the world as the future of personal computers.
Funded and run by Apple Inc., Macs have undergone many changes throughout the years and are today one of the most popular forms of computers in the world. Original Macs came with two programs, MacWrite and MacPaint, which were tools that allowed users to type and paint on their computers. Soon after launching, Mac’s were the first computers to introduce Desktop Publishing which allowed users to create their own text and image layouts and print them from their computers. This became possible through the introduction of the MacPublisher and Aldus PageMaker programs as well as Apple’s LaserWriter printer, which was one of the first laser printers for home use. Microsoft and IBM eventually added the Desktop Publishing function to their line of computers, however ever since then Mac’s have become known for their graphic capabilities and are now a major tool used by graphic designers.
It is interesting to note that the first Mac computer model, named the Macintosh 128K, cost US$2,495 at the time, which after inflation is the equivalent of $5,000 USD in today’s market. The second line of Mac computers was the Macintosh Plus which greatly improved on the limitations of the 128K, and ended up being the Mac computer that was in production for the longest time, just over 6 years.
The popularity of Macs are often attributed to CEO Steve Jobs, a charismatic individual who was named as Fortune Magazine’s Most Powerful Businessman of 2007. Jobs originally helped start Apple in the mid-80s, however soon after that he left the company to pursue other opportunities. Returning almost 10 years later after his NeXT computer platform company was bought out by Apple, Jobs was named CEO and has been instrumental in the success of Macs over the last 13 years.
Throughout most of the 1990s Macintosh computers were constantly evolving. Due to the popularity of Bill Gates’ Microsoft company, particularly Windows 95, the Mac always seemed to live in the shadow of the Microsoft Monopoly.
It was not until 1998 that Apple began to make it’s mark as the first iMacs were introduced to the world. From there on their popularity skyrocketed as many consumers welcomed an alternative to Microsoft Windows as Macs were aimed more at the casual computer user with it’s low maintenance, easy-to-use interface, and sleek design. The first iMacs sold an impressive 800,000 units in a little over 4 months in 1998, earning the company a yearly profit of $309 million, their best sales in years.
In the years following Apple introduced laptops (iBook and Powerbook), as well cheaper alternatives to the iMac such as the eMac and the Power Mac Cube. In 2000 Apple first introduced the OS X operating system, which has been a Mac staple ever since. This is the first time that Macs offered an operating system that rivaled Windows. With the introduction of the wildly successful iPods and iTunes in 2001, Apple solidified it’s popularity and continues to grow in size and popularity to this day.
About the Author:
Dave Stuart is a keen writer and enjoys writing about a wide variaty of topics, but has a special passion for witing articles and blog posts in the information technology arena.
For a living, Dave runs a fast fold projection screen design service for a well known manufacturer. The fast fold projection screen is growing in demand at present, especially in Schools and universitys. Please visit http://fastfoldprojectionscreen.net for futher information on this topic.
Prevent Thinning Hair And Wild hair Drop Now
So your hair is obtaining thin and you’re asking if there’s any remedy that will hinder wild hair thinning and control wild hair fall? Well appear no further I will share some win this article
The incredibly ideal curly hair loss remedy to quit locks tumble is an oil called Mira wild hair oil
Basically massage this powerful wild hair oil and leave over night. Wash off the following day as usual with an all natural hair shampoo. This is really a powerful frizzy hair tonic and has been verified time and time again to promote locks growth Mira locks oil is rich in important fatty acids and herbs which will stop frizzy hair tumble and permit quick frizzy hair growth
At home you can merely boil some henna results in in mustard oil (in a ratio of 4 tablespoons to one cup). Then simply filter the oil and then save it. Now simply Knead this residence made herbal oil before taking a shower each night, it will also quit frizzy hair dropand thinning hair
Next way to end locks tumble is to end using commercial shampoos as they trigger hair drop
Following take locks natural vitamins like biotin and ascorbic acid and B to end wild hair loss and locks drop
Be certain to maintain hydrated, you need at least seven glass of water inside a day to clean out your program and make your immune system optimal and well-designed
you must also wash your locks with a mixture of egg white and lemon and place on your frizzy hair once a week, this can get rid of dandruff and limit locks fall
most importantly you’ll need Mira frizzy hair oil to quit locks falling and limit the amount of wild hair loss, Mira frizzy hair oil will first prevent curly hair fall; and then market locks development –you will see improvements in as little as 2 weeks. By this i mean you will see new hair growth and you will grow hair out fast
Best Mineral Makeup
Mineral Makeup has been in existence for hundreds of years. Yet is only in the last few years that the film and fashion industry have discovered the amazing benefits of the combination of its simple pure and organic ingredients. Mineral Makeup contains NO perfumes, dyes, talc, alcohol, preservatives or mineral oils. And the good news is good for your skin.
If you suffer with a sensitive skin condition such as acne, dryness, clogged pores or allergies, regular store bought makeups may well be creating more problems than they solve.
If you have fine lines, crows feet or wrinkles most traditional makeups cake up in these areas and accentuate them. The beauty of using a quality mineral makeup product is that you never look as though you are wearing makeup, instead you are complimented on what great looking skin you have
.
Because Mineral Makeup lays on the top of your skin and doesn’t clog up your pores your skin is able to breathe. The coverage using pure and natural minerals is far superior to conventional makeups and it never feels as though you are wearing a heavy mask.
One of the great benefits of wearing mineral makeup is it also offers you some protection from the suns harmful UVA- UVB rays because one of its main ingredients is titanium oxide is one of the ingredients used in the manufacture of sun screens.
Mineral Makeup is the recommended makeup of choice by dermatologists for patients who have had laser treatments and peels because it calms and soothes bruised, flaky, itchy and inflamed skin as well as helping to rehydrate the skin.
And unlike many traditional makeup products once applied it stays on all day long. In fact you can even sleep in it without worrying about makeup on your pillow. Many fashion and film makeup artists love mineral makeup because it doesn’t come off even under the hot studio lights
.
There are many choices when it comes to purchasing mineral makeup
If you like to watch infomercials you will find products such as Bare Minerals or Sheer Cover. These are both loose minerals and can be bought at an introductory price that you can lock into if you join the continuity program.
An alternative to loose minerals is pressed mineral makeup. Many women prefer this as a cheaper and better option. Unlike loose minerals it is quick and easy to apply and it also lasts much longer.
Whichever type of mineral product you choose one thing you can be sure of is you are using what many skincare professionals consider to be ‘The Healthy Choice.
If you want a long lasting quality product I suggest you check Mineral Elements by DWC Skincare
Mineral Elements Beauty Glow is an ‘All in One’ Pressed Mineral Makeup Bronzer that is enriched with vitamin E ( To help promote the natural healing of skin damage) that was developed by Debbie Webster a makeup artist from the United Kingdom way back in 1990 ( long before products like Bare Minerals and Sheer Cover were ever promoted on late night infomercials.
Because Beauty Glow is one shade that suits all skin tones many women are skeptical that it will suit them. That is why it is promoted at Women Shows, Home Shows and State Fairs. It is only when visitors are given a free makeover that they realize just how quick and easy it is to apply and how well it adapts to their skin tone with perfect natural results.
Vitiligo
Our skin makes its coloring from pigments. They are colored pigments. Individuals with dark skin have more of these pigments and those with lighter skin have less of them. This pigment is known as melanin.
The main function of melanin is to protect the body from sun rays. That is why, we get tanned when we expose ourselves to sun. Tanning means more production of melanin. Cells known as melanocytes in the skin produce melanin.
If for any cause, the skin begins losing melanin from a patch on the body, light skin develops on that place. This is called disease of vitiligo. There is no specific cause known for vitiligo except for the thought that the body destroys the melanin itself. That is why this is called an autoimmune disease (a disease where the body attacks itself).
Vitiligo can develop on the whole body, or it can stop after creating few patches. Anybody can get it on any part of the body. There is no perfect cure for it. There is no prevention for vitiligo. Vitiligo also exposes skin to sun rays and that is dangerous. Let us find out more about it.
Vitiligo can develop on any part of the body, at any age and in anyone. Though it is believed that exposed parts of body have higher chances of developing Vitiligo, it can appear anywhere. Color of skin does not affect the probability of getting vitiligo. Similarly, it can strike both the sexes and at any age and vitiligo therapy for everyone is very similar.
It is estimated that in about one-fifth of the cases, other family members may also have vitiligo. As vitiligo is an autoimmune disorder, its patients are monitored for other autoimmune diseases such as thyroid disorders, alopecia aerta, etc. You should talk to your doctor about this in detail.
Vitiligo begins with a small area of lighter color, which slowly turns to a white patch. Many patches can also develop at the same time. After some time, the discoloration may stop and then restart after some time. Some people may lose all the skin pigment. The hair also loses color at the site of vitiligo.
The cause of vitiligo is not known and so it is difficult to provide a definitive vitiligo cure, but it is thought that either the body destroys the melanin or it destroys itself. But the result is loss of pigment that protects body against sun damage.
I hope this helps you better understand the causes and effects of vitiligo. You shoul seek medical advice should begin to experience this mysterious disorder.
DISCLAIMER: I do hope this helps, but please note that I am not a doctor so you must consult with a medical doctor before taking any medical suggestions from the Web.