A rainbow is a spectrum of light formed when sunlight refracts into, reflects, and then refracts once again out of water droplets. Upon entering a water droplet, the white light is spread apart into its individual frequencies, just as in a prism. The light inside the droplet then reflects against the back of the water droplet and spreads apart even more upon exiting the water droplet.

Varicose veins are most commonly found on the legs of women and men who spend a lot of time on their feet. Birth control pills, hormone therapy, obesity, weight fluctuation, and constipation can also add to the development of varicose veins. See similar questions...

If you would like to use any of the Rainbows Bridge graphics, you may obtain permission to do so by Emailing a request to us and obtaining permission. Using any of the graphics without our permission is a violation of our copyright, which are filed with the United States Copyright Office at the Library of Congress. See similar questions...

This is a natural process. If it occurs more often, with equal or bigger icebergs, perhaps then we can say more about what is causing this that isn't the natural part of the hydrological cycle, which is for snow to fall over Antarctica, and the continually forming icecap to slowly increase, move out to sea, and calve off icebergs. See similar questions...

There are certain conditions in the urine including those caused by not drinking enough water, that make crystals which can tribute to stone formation. Some patients form stone because of anatomical malformations of the urinary tract, while other patient may have a genetic predisposition, environmental or nutritional risk factors. See similar questions...

Influenza pandemics are known to have occurred several times each century since the Middle Ages. There were three influenza pandemics in the 20th century, in 1918, 1957 and 1968. Experts believe we are overdue for the next influenza pandemic. No one can predict when a pandemic might occur, but many scientists from around the world are watching the H5N1 avian (bird) influenza situation in Asia and Europe very closely. See similar questions...

Herpes symptoms come and go, but the virus will remain in your body for life. Some people may never show symptoms, some may only show symptoms once or twice in their lives, and others may have symptoms many times each year. See similar questions...

During laparoscopic radical prostatectomy the entire prostate gland and seminal vesicles are removed. Once they are removed, the bladder is reattached to the urethra. If cancer has spread to the lymph nodes close to the prostate, these may also be removed by laparoscopy during surgery. This lymph node dissection is not necessary and thus is only performed on patients at high risk for metastasis (spread) of prostate cancer. See similar questions...

People are exposed to small amounts of radiation every day, both from naturally occurring sources (such as elements in the soil or cosmic rays from the sun), and man-made sources. Man-made sources include some electronic equipment (such as microwave ovens and television sets), medical sources (such as x-rays, certain diagnostic tests, and treatments), and from nuclear weapons testing. See similar questions...

Heartspring Pediatric Services and Rainbows are collaborators. Pediatric Services is a medical model and is not a part of the education process, however, Heartspring clinicians work in close contact with education programs and therapists with parents permission. See similar questions...

If you have more than one baby at Rainbows Bridge you will see the names of your babies when you enter each resident's guardian area. Click each name and then the "Apply my Changes" button to link the residencies. If you would like to view a Residency that has a link to another furchild at Rainbows Bridge please visit Rusty. Yes, you can have as many Fur Babies at a Residency but one date on the stone. Visit "Angel & Spunky" to get an idea. See similar questions...

When you have been injured and can't work because of your injuries, don't wait until you have been denied benefits or compensation before consulting with an attorney. If your right to benefits or compensation is being challenged, it's time to act. Call the Philadelphia disability and workers' compensation attorneys at Fenner & Boles, LLC. We can help. See similar questions...

BSE was first observed in Great Britain in April 1985 and was officially diagnosed in 1986. By June 1990, some 14,000 cases were confirmed (out of an estimated population of 10 million cattle) in Great Britain. Since 1986, more than 185,000 cases of BSE have been confirmed in Great Britain. The epidemic peaked in 1992-93 at almost 1,000 new cases per week. Control measures have since reduced incidence of the disease, and currently fewer than 100 new cases are reported per week. See similar questions...

New influenza viruses emerge as a result of a process called antigenic shift, which causes a sudden and major change in influenza A viruses. These changes occur when proteins on the surface of the virus combine in new ways as a result of mutation or exchange of genetic material between multiple influenza viruses. If such changes result in a new influenza A virus subtype that can infect humans and spread easily from person to person, an influenza pandemic can occur. See similar questions...

Smoking is allowed in private residences except when used as a child care, adult day care, or healthcare facility, or any other home-based business open to the public. See similar questions...

Not always. Hyperpigmentation (HEYE per PIG men TAY shun) or freckling of the treated area, is possible, especially if the hair is dark, deep, terminal hair. Most cases of Hyperpigmentation clear within a few months, but in some cases it can last for as long as 24 months. See similar questions...

In 2007, there are approximately 2 million people with limb loss in the United States (excluding fingers and toes). There are more than 185,000 new amputations preformed each year in this country. The prevalence rate in 1996 was 4.9 per 1,000 persons. The incidence rate was 46.2 per 100,000 persons with dysvascular disease, 5.86 per 100,000 persons secondary to trauma, 0.35 per 100,000 secondary to malignancy of a bone or joint. The birth prevalence of congenital limb deficiency in 1996 was 25. See similar questions...